Evaluate the following expression when a = 5 and b = 1. Then, plot the resulting value on the provided number line. 12+2 (4 a²) ÷ 7 + 8
Answers
Answer:
To evaluate the expression when a = 5 and b = 1, we substitute the values into the expression:
12 + 2(4(5)²) ÷ 7 + 8
= 12 + 2(4 * 25) ÷ 7 + 8 (Note: 5² means 5 raised to the power of 2)
= 12 + 2(100) ÷ 7 + 8 (Note: 4 * 25 = 100)
= 12 + 200 ÷ 7 + 8
= 12 + 28.57 + 8 (Note: ÷ means divide)
= 48.57
To plot the resulting value on the provided number line , we would need to know the scale and range of the number line. Without this information, we cannot accurately plot the value.
Step-by-step explanation:
```
12 + 2(4a^2)÷7 + 8
= 12 + 2(4(5)^2)÷7 + 8 (substituting a=5)
= 12 + 2(4(25))÷7 + 8 (evaluating 5^2 = 25)
= 12 + 2(100)÷7 + 8
= 12 + 28.57 + 8 (evaluating 2(100)÷7 = 28.57)
= 48.57
```
So the value of the expression when `a=5` and `b=1` is `48.57`.
To plot this value on a number line, we first need to determine the appropriate scale for the number line. Since the value we obtained is between 40 and 50, we can use a scale of 1 unit per tick mark. We then draw a number line and label it with tick marks at appropriate intervals. Finally, we plot the value `48.57` on the number line:
```
|-------------------------------------------
40 50
x=48.57
```
Therefore, the value of the given expression when `a=5` and `b=1` is `48.57` and we have plotted it on the number line.
Related Questions
For g(x,y) = [tex]sin^{-1}[/tex](x² + y² — 3),
the domain of the function is the area between two circles.
The larger circle has a radius of
The smaller circle has a radius of
Answers
We conclude that there is no valid domain for the given function g(x, y) = sin^-1(x² + y² - 3). Thus, the concept of circles with radii does not apply in this case.
To determine the domain of the function g(x, y) = sin^-1(x² + y² - 3), we need to examine the range of the arcsine function. The arcsine function, [tex]sin^{(-1)[/tex](z), is defined for values of z between -1 and 1, inclusive. Therefore, for the given function, we have:
-1 ≤ x² + y² - 3 ≤ 1
Rearranging the inequality, we get:
-4 ≤ x² + y² ≤ -2
Now, let's analyze the inequalities separately:
x² + y² ≤ -2:
This inequality is not possible since the sum of squares of two non-negative numbers (x² and y²) cannot be negative. Therefore, there are no points that satisfy this inequality.
x² + y² ≤ -4:
Similarly, this inequality is also not possible since the sum of squares of two non-negative numbers cannot be less than or equal to -4. Therefore, there are no points that satisfy this inequality either.
Based on the analysis, we conclude that there is no valid domain for the given function g(x, y) = sin^-1(x² + y² - 3). Thus, the concept of circles with radii does not apply in this case.
It's important to note that the arcsine function has a restricted range of -π/2 to π/2, and for a valid domain, the input of the arcsine function must be within the range of -1 to 1. In this particular case, the given expression x² + y² - 3 exceeds the range of the arcsine function, resulting in no valid domain.
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8. Juan, Pedro, María, César, Tomás y Natalia son escogidos para colaborar en un estudio para obtener la vacuna Covid, para ello, hacen 2 grupos de 3 personas cada uno. Un grupo es inyectado con placebo y el otro grupo es inyectado con la vacuna de estudio. ¿De cuántas maneras podemos escoger el grupo al que se le inyectará la vacuna de estudio?, ¿Cuál es la probabilidad de que Juan y María estén en el grupo de la vacuna de estudio? *
Answers
The number of ways to choose the groups is given as follows:
20 ways.
The probability that both Juan and Maria are in the vaccine group is given as follows:
1/5.
La probabilidad de que Juan y María estén en el grupo de la vacuna de estudio es:
1/5.
What is the combination formula?The number of different combinations of x objects from a set of n elements, when the order of the elements is not important, is obtained with the formula presented as follows, using factorials.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
In this problem, we have that six people are divided into two groups of 3 people, hence the number of ways to choose the groups is given as follows:
C(6,3) = 6!/(3! x 3!) = 20 ways.
The number of outcomes in which Juan and Maria are in the vaccine group is given as follows:
1 x 1 x 4(the third member can be any of the remaining four people) = 4.
Hence the probability is given as follows:
4/20 = 1/5.
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what is the value of m
Answers
The measure of the angle m∠RQS subtended by the arc RS at the circumference is equal to 70°
What is angle subtended by an arcThe angle subtended by an arc of a circle at it's center is twice the angle it substends anywhere on the circles circumference. Also the arc measure and the angle it subtends at the center of the circle are directly proportional.
arc RS = 2(m∠RQS)
Also arc AD = 140°
2(m∠RQS) = 140°
m∠RQS = 140°/2 {divide through by 2}
m∠RQS = 70°
Therefore, the measure of the angle m∠RQS subtended by the arc RS at the circumference is equal to 70°
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Complete the sentence using the following information:
New Account Balance - $435.92
Payments/Credits - $68.50
New Purchases $118.49
Finance Charge=$3.70
The amount of the adjusted balance is
Y. given the following information:
Answers
The adjusted balance, considering the new account balance, payments/credits, new purchases, and finance charge, is $489.61.
To calculate the adjusted balance, we need to consider the new account balance, payments/credits, new purchases, and finance charges.
Starting with the new account balance of $435.92, we subtract the payments/credits of $68.50. This represents the amount that has been paid or credited to the account, reducing the balance.
Next, we add the new purchases of $118.49. These are additional charges made to the account, increasing the balance.
Finally, we add the finance charge of $3.70. This charge is typically applied as interest on the outstanding balance.
To calculate the adjusted balance, we can follow these steps:
Start with the new account balance: $435.92
Subtract the payments/credits: $435.92 - $68.50 = $367.42
Add the new purchases: $367.42 + $118.49 = $485.91
Add the finance charge: $485.91 + $3.70 = $489.61
Therefore, the amount of the adjusted balance is $489.61.
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5h-6-8+7h what’s the answer ?
Answers
Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the high temperature for the day is 95 degrees and the low temperature of 75 degrees occurs at 6 AM. Assuming t is the number of hours since midnight, find an equation for the temperature, D, in terms of t.
Answers
Answer:
Yes, a sinusoidal function is a great way to model temperatures over a 24-hour period because the pattern of temperature changes tends to be cyclic.
A sinusoidal function can be written in the general form:
D(t) = A sin(B(t - C)) + D
where:
- A is the amplitude (half the range of the temperature changes)
- B is the frequency of the cycle (which would be `2π/24` in this case because the temperature completes a full cycle every 24 hours)
- C is the horizontal shift (which is determined by the fact that the minimum temperature occurs at 6 AM)
- D is the vertical shift (which is the average of the maximum and minimum temperature)
Given the information you've provided, let's fill in the specifics:
- The high temperature for the day is 95 degrees.
- The low temperature is 75 degrees at 6 AM.
The amplitude, A, is half the range of temperature changes. It's the difference between the high and the low temperature divided by 2:
A = (95 - 75) / 2 = 10
The frequency, B, is `2π/24` because the temperature completes a full cycle every 24 hours.
The horizontal shift, C, is determined by the fact that the minimum temperature occurs at 6 AM. The sine function hits its minimum halfway through its period, so we want to shift the function to the right by 6 hours to make this happen. In our case, this means C = 6.
The vertical shift, D, is the average of the maximum and minimum temperature:
D = (95 + 75) / 2 = 85
So the equation for the temperature, D, in terms of t (the number of hours since midnight) is:
D(t) = 10 sin((2π/24) * (t - 6)) + 85
This equation represents a sinusoidal function that models the temperature over a day given the information provided.
How do you solve this??
21 a(little 6) b(little 5)
————————————
7 a(little 3) b
Answers
[tex](21a^6b^5) / (7a^3b)[/tex] simplifies to [tex]3a^3b^4.[/tex]
To solve this problemWe can use the rules of exponents and simplify the terms with the same base.
Dividing the coefficients: 21 / 7 = 3.
For the variables, you subtract the exponents: [tex]a^6 / a^3 = a^(^6^-^3^) = a^3.[/tex]
Similarly,[tex]b^5 / b = b^(5-1) = b^4[/tex].
Putting it all together, the simplified expression is:
[tex]3a^3b^4.[/tex]
Therefore, [tex](21a^6b^5) / (7a^3b)[/tex] simplifies to [tex]3a^3b^4.[/tex]
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The time (in minutes) between volcanic eruptions was measured along with the duration (in minutes) of the eruption.
Use the data to answer the following question.
Time Between Eruptions 12.17 11.63 12.03 12.15 11.30 11.70 12.27 11.60 11.72
Duration of Eruption 2.01 1.93 1.97 1.99 1.87 1.99 2.11 1.96 2.03
Your answers should be numerical values. If necessary, round to four decimal places. Use rounded
answers for subsequent questions parts.
The value of the linear correlation coefficient is
The value of the coefficient of determination is
The regression line is y =
The predicted duration of an eruption is
The residual for x = 12.03 is
x+
minutes if the time between eruptions is 12.03 minutes.
Answers
The actual duration of eruption for x = 12.03 is 1.97 minutes, so the residual is 1.97 - 3.8431 = -1.8731 minutes.
The value of the linear correlation coefficient, also known as the Pearson correlation coefficient, measures the strength and direction of the linear relationship between two variables.
In this case, it represents the correlation between the time between eruptions and the duration of the eruption. To calculate the linear correlation coefficient, we can use the given data. The linear correlation coefficient is 0.8404.
The coefficient of determination, denoted as R-squared, represents the proportion of the variance in the dependent variable (duration of eruption) that can be explained by the independent variable (time between eruptions).
It is calculated by squaring the linear correlation coefficient. In this case, the coefficient of determination is 0.7055.
The regression line represents the best-fit line that approximates the relationship between the independent and dependent variables.
It can be expressed in the form of y = mx + b, where y represents the predicted duration of the eruption, x represents the time between eruptions, m represents the slope of the line, and b represents the y-intercept.
To determine the regression line, we can perform linear regression analysis using the given data. The regression line is y = 0.1608x + 1.8305.
The predicted duration of an eruption can be calculated by substituting the given time between eruptions value into the regression line equation. For x = 12.03 minutes, the predicted duration of an eruption is y = 0.1608 x 12.03 + 1.8305 = 3.8431 minutes.
The residual for x = 12.03 is the difference between the actual duration of eruption and the predicted duration. It can be calculated by subtracting the predicted value from the actual value. The actual duration of eruption for x = 12.03 is 1.97 minutes, so the residual is 1.97 - 3.8431 = -1.8731 minutes.
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PLS HELP WILL GIVE BRAINLIEST IF ANSWER IS CORRECT (NO LINKS)
Identify the value of b and the length of each chord.
Answers
Answer: C
b = 6; JG = 34; HF = 29
Please awnser ASAP I
Will brainlist
Answers
The result of the row operation on the matrix is given as follows:
[tex]\left[\begin{array}{cccc}1&0&0&8\\0&8&0&3\\0&0&5&6\end{array}\right][/tex]
How to apply the row operation to the matrix?The matrix in this problem is defined as follows:
[tex]\left[\begin{array}{cccc}2&0&0&16\\0&8&0&3\\0&0&5&6\end{array}\right][/tex]
The row operation is given as follows:
[tex]R_1 \rightarrow \frac{1}{2}R_1[/tex]
The meaning of the operation is that every element of the first row of the matrix is divided by two.
Hence the resulting matrix is given as follows:
[tex]\left[\begin{array}{cccc}1&0&0&8\\0&8&0&3\\0&0&5&6\end{array}\right][/tex]
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Which of the following r-values represents the strongest correlation?
A. 0.55
B. 0.65
C. 0.45
D. 0.35
Answers
Answer:
B. 0.65
Step-by-step explanation:
The closer the r value is to the number 1 or -1, the stronger the correlation.
For example:
0.99 > 0.01
-0.6 > 0.5
.43 < .76
.69 > .21
Please give brainliest and thanks!
answer the question submitted
Answers
The function g(x) = 4x² - 28x + 49 can be rewritten as g(x) = 4(x - 7/2)² - 147 after completing the square.
To complete the square for the function g(x) = 4x² - 28x + 49, we follow these steps:
Step 1: Divide the coefficient of x by 2 and square the result.
(Coefficient of x) / 2 = -28/2 = -14
(-14)² = 196
Step 2: Add and subtract the value obtained in Step 1 inside the parentheses.
g(x) = 4x² - 28x + 49
= 4x² - 28x + 196 - 196 + 49
Step 3: Rearrange the terms and factor the perfect square trinomial.
g(x) = (4x² - 28x + 196) - 196 + 49
= 4(x² - 7x + 49) - 147
= 4(x² - 7x + 49) - 147
Step 4: Write the perfect square trinomial as the square of a binomial.
g(x) = 4(x - 7/2)² - 147
Therefore, the function g(x) = 4x² - 28x + 49 can be rewritten as g(x) = 4(x - 7/2)² - 147 after completing the square.
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The probable question may be:
Rewrite the function by completing the square.
g(x)=4x²-28x +49
g(x)= ____ (x+___ )²+____.
Emma gets $9 per hour for the first 40 hours worked per week and time and a half for the hours..
Answers
Please answer ASAP I will brainlist
Answers
Answer:
Step-by-step explanation:
To interchange Row 1 and Row 2 of the given matrix, the indicated row operation can be performed as follows:
Original matrix:
8 -2 1 7
2
9
4 5
1
4
-4 9
Interchanging Row 1 and Row 2:
2
8 -2 1 7
9
4 5
1
4
-4 9
The transformed matrix after interchanging Row 1 and Row 2 is:
2
8 -2 1 7
9
4 5
1
4
-4 9
What is the next value?
2 3 E 4 5 I 6 8
options: O 8 M N
Answers
Answer:
The correct answer is a.
Step-by-step explanation:
The sequence is: 2 3 E 4 5 I 6 8 We can notice that there are numbers and letters alternating in the sequence. The numbers are increasing, and the letters seem to be vowels in alphabetical order. So, the next value should be a letter (vowel) after I, which is O. The correct answer is a.
How many gallons of a 90% antifreeze solution must be mixed with 100 gallons of 25% antifreeze to get a mixture that
is 80% antifreeze? Use the six-step method.
You need gallons.
(Round to the Question Viewer ber.)
answer
Answers
Answer:
550 gallons
Step-by-step explanation:
Let [tex]x[/tex] be the number of gallons for the 90% antifreeze solution and [tex]x+100[/tex] be the total number of gallons that will contain 80% antifreeze solution:
[tex]\displaystyle \frac{0.90x+0.25(100)}{x+100}=0.80\\\\0.90x+25=0.80x+80\\\\0.10x+25=80\\\\0.10x=55\\\\x=550[/tex]
Therefore, you would need 550 gallons of the 90% antifreeze solution.
What is the reason for Statement 2 of the two-column proof?
Responses
Angle Addition Postulate
Angle Addition Postulate
Ruler Postulate
Ruler Postulate
Angle Congruence Postulate
Angle Congruence Postulate
Linear Pair Postulate
Linear Pair Postulate
Given: the measure of angle P Q S equals 50 degrees. Prove: angle S Q R is an obtuse angle. Art: three rays Q P, Q R, and Q S share an endpoint Q. Rays Q P and Q R make a straight line. Ray Q S points in a downward direction.
Statements Reasons
1. m∠PQS=50°
Given
2. ∠PQS
and ∠SQR
are supplementary.
3. m∠PQS+m∠SQR=180°
Definition of supplementary angles
4. 50°+m∠SQR=180°
Substitution Property of Equality
5. m∠SQR=130°
Subtraction Property of Equality
6. ∠SQR
is an obtuse angle. Definition of obtuse angle
Answers
The reason for Statement 2 in the two-column proof is the Angle Addition Postulate.The Angle Addition Postulate states that if two angles share a common vertex and a common side, then the sum of the measures of those angles is equal to the measure of the larger angle formed by the two sides.
In the given proof, Statement 1 states that the measure of angle PQS is 50 degrees. Statement 2 follows from the Angle Addition Postulate because angles PQS and SQR share the common vertex Q and the common side QS.
Since angle PQS is given as 50 degrees, and angles PQS and SQR are supplementary (which means their measures sum up to 180 degrees), we can use the Angle Addition Postulate to conclude that the measure of angle SQR is 180 - 50 = 130 degrees. This is shown in Statement 5.
Finally, Statement 6 states that angle SQR is an obtuse angle. This follows from the definition of an obtuse angle, which states that an angle is obtuse if its measure is greater than 90 degrees but less than 180 degrees. Since angle SQR measures 130 degrees, it falls within the range of obtuse angles.
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If the event is Monday and Tuesday, then the complement is:
Wednesday, Thursday, Friday, Saturday, and Sunday.
Wednesday, Thursday, and Friday.
Wednesday, Saturday, and Sunday.
Wednesday and Sunday.
Answers
Answer:
Step-by-step explanation:
its on satuday
So, the correct option is:
The complement is Wednesday, Thursday, Friday, Saturday, and Sunday.
step by step explaination:
1. The given event is "Monday and Tuesday." This means we are considering the outcomes that occur on both Monday and Tuesday.
2. To find the complement, we need to consider all the outcomes that are not part of the given event.
3. There are seven days in a week: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday.
4. We need to identify the days that are not part of the event "Monday and Tuesday."
5. Wednesday is not part of the event because it is a different day than Monday and Tuesday.
6. Similarly, Thursday, Friday, Saturday, and Sunday are also not part of the event.
7. Therefore, the complement of the event "Monday and Tuesday" includes Wednesday, Thursday, Friday, Saturday, and Sunday.
So, the complement is Wednesday, Thursday, Friday, Saturday, and Sunday.
SOLVE ALGEBRAICALLY!!!
The population trend for Berthoud, CO, can be represented by the function P(t) = 106.67t + 4763.67, and the population trend for Wellington, CO, can be represented by the function P(t) = 308.8t + 2844.18 where t is the time in years since 2000. When will the towns have the same population?
Answers
106.67t + 4763.67 = 308.8t + 2844.18
First, let's rearrange the equation by moving all the terms involving t to one side:
106.67t - 308.8t = 2844.18 - 4763.67
Simplifying the equation gives:
-202.13t = -1921.49
Now, we can isolate t by dividing both sides of the equation by -202.13:
t = (-1921.49) / (-202.13)
Solving this equation yields:
t ≈ 9.51
Therefore, the towns of Berthoud and Wellington will have the same population approximately 9.51 years after 2000.
Answer:
9.5 years
Step-by-step explanation:
P(t) = P(t)
106.67t+4763.67=308.8t+2844.18
Minus 106.67t on both sides
4763.67=202.13t+2844.18
Minus 2844.18 on both sides
1919.49=202.18t
Solve for t
t=9.4963...
t=9.5 years
Find the solution to the equation below.
2x2+3x-20=0
Answers
Answer:
[tex]x = 5.3 \: or \: 5 \frac{1}{3} [/tex]
Step-by-step explanation:
[tex]2 \times 2 + 3x - 20 = 0 \: \: \: \: \: \: 4 + 3x - 20 = 0 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:3x = 20 - 4 = 16 \: \: \: \: \: \: \: \: 3x = 16 \: \: divide \: both \: side \: by \: 3 = \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = 5.3[/tex]
Question 4Multiple Choice Worth 5 points)
(Dilations MC)
Polygon ABCD with vertices at A(1,-1), B(3, -1), C(3, -2), and D(1, -2) is dilated to create polygon ABCD with vertices at A(4, -4), B(12,-4), C(12, -3), and D(4, -3). Determine the scale factor used to
create the image
0 1/4
0 1/2
0 2
0 4
Answers
The scale factor used to create the image of polygon ABCD is 4.
To determine the scale factor, we need to compare the corresponding side lengths of the original polygon ABCD and the image polygon ABCD. Let's denote the scale factor as k.
Original polygon ABCD:
Side AB: length = 3 - 1 = 2
Side BC: length = -2 - (-1) = -1
Side CD: length = 1 - 3 = -2
Side DA: length = -2 - (-1) = -1
Image polygon ABCD:
Side AB: length = 12 - 4 = 8
Side BC: length = -3 - (-4) = 1
Side CD: length = 4 - 12 = -8
Side DA: length = -3 - (-4) = 1
Comparing the corresponding side lengths, we can set up the following equations:
k * 2 = 8 (for side AB)
k * (-1) = 1 (for side BC)
k * (-2) = -8 (for side CD)
k * (-1) = 1 (for side DA)
From the equations, we can see that k = 4 satisfies all of them.
Therefore, the scale factor used to create the image of polygon ABCD is 4.
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NO LINKS!!! URGENT HELP PLEASE!!!
Please help with 27 & 28
Answers
Answer:
27) 34.29 in²
28) If I get an A, then I studied for my final.
Step-by-step explanation:
Question 27To calculate the area of the trapezoid, we need to find its perpendicular height.
As the given diagram shows an isosceles trapezoid (since the non-parallel sides (the legs) are of equal length), we can use Pythagoras Theorem to calculate the perpendicular height.
Identify the right triangle formed by drawing the perpendicular height from the vertex of the bottom base to the top base (this has been done for you in the given diagram).
As the two base angles of an isosceles trapezoid are always congruent, the base of the right triangle is half the difference between the lengths of the parallel bases, which is (8 - 6)/2 = 1 inch.
The hypotenuse of the right triangle is the leg of the trapezoid, which is 5 inches.
Use Pythagoras Theorem to find the perpendicular height (the length of the other leg):
[tex]h^2+1^2=5^2[/tex]
[tex]h^2+1=25[/tex]
[tex]h^2=24[/tex]
[tex]h=\sqrt{24}[/tex]
[tex]h=2\sqrt{6}[/tex]
Now we have found the height of the trapezoid, we can use the following formula to calculate its area:
[tex]\boxed{\begin{minipage}{7 cm}\underline{Area of a trapezoid}\\\\$A=\dfrac{1}{2}(a+b)h$\\\\where:\\ \phantom{ww}$\bullet$ $A$ is the area.\\ \phantom{ww}$\bullet$ $a$ and $b$ are the parallel sides (bases).\\\phantom{ww}$\bullet$ $h$ is the height.\\\end{minipage}}[/tex]
The values to substitute into the area formula are:
a = 8 inb = 6 inh = 2√6 inSubstituting these values into the formula we get:
[tex]A=\dfrac{1}{2}(8+6) \cdot 2\sqrt{6}[/tex]
[tex]A=\dfrac{1}{2}(14) \cdot 2\sqrt{6}[/tex]
[tex]A=7\cdot 2\sqrt{6}[/tex]
[tex]A=14\sqrt{6}[/tex]
[tex]A=34.29\; \sf in^2\;(nearest\;hundredth)[/tex]
Therefore, the area of the isosceles trapezoid is 34.29 in², rounded to the nearest hundredth.
[tex]\hrulefill[/tex]
Question 28Given conditional statement:
"If I studied for my final, then I will get an A"The hypothesis is "I studied for my final", and the conclusion is "I will get an A".
The converse of a conditional statement involves switching the hypothesis ("if" part) and the conclusion ("then" part) of the original statement.
Therefore, the converse of the statement would be:
"If I get an A, then I studied for my final."I need help with 36 please I don’t understand
Answers
The equation of the function is y = 1/(x + 3) - 1
How to determine the equation of the transformationFrom the question, we have the following parameters that can be used in our computation:
The reciprocal function shifted down one unit and left three units
The equation of the reciprocal function is represented as
y = 1/x
When shifted down one unit, we have
y = (1/x) - 1
When shifted left three units, we have
y = 1/(x + 3) - 1
Hence, the equation of the function is y = 1/(x + 3) - 1
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if all the solutions of the inequality x^2-6ax+5a^2
Answers
The number of possible integral values of 'a' is 4 and the possible value of a are 1, 2, 5, and 10.
here we have to find the number of possible integral values of 'a' that satisfy the given conditions, we need to compare the two inequalities:
x² - 6ax + 5a² <= 0
x² - 14x + 40 <= 0
Let's analyze each inequality separately:
x² - 6ax + 5a² <= 0
x² - 5ax -xa + 5a²<=0
(x - a)(x - 5a) <= 0
Case 1: (x - a) <= 0 and (x - 5a) <= 0
This implies a <= x <= 5a.
Case 2: (x - a) >= 0 and (x - 5a) >= 0
This implies x >= a and x >= 5a.
x² - 14x + 40 <= 0
x² - 10x-4x + 40 <= 0
(x - 4)(x - 10) <= 0
Case 3: (x - 4) <= 0 and (x - 10) <= 0
This implies 4 <= x <= 10.
Case 4: (x - 4) >= 0 and (x - 10) >= 0
This implies x >= 4 and x >= 10, which simplifies to x >= 10.
Case 1 (a <= x <= 5a) and Case 4 (x >= 10).
Since x >= 10, the lower bound of the intersection should be 10. We can substitute this value into the first inequality:
a <= 10 <= 5a
Dividing both sides by an (assuming a is positive), we get:
1 <= 10/a <= 5
To satisfy this condition, 'a' must be an integer divisor of 10. The integral values of 'a' that satisfy this condition are 1, 2, 5, and 10.
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Complete question:
if all the solutions of the inequality x² -6ax + 5a²<=0 are also the solutions of inequality x²- 14x + 40<=0 then find the number of possible integral values of a.
The question pertains to a quadratic inequality. A solution process could be carried out given the correct quadratic formula, although the initial inequality seems to contain a typo due to the lack of a comparison operator.
Explanation:The question you asked is about finding the solution to quadratic inequality x^2-6ax+5a^2. In general, the solutions or roots for any quadratic equation can be calculated using the formula: -b ± √b² - 4ac / 2a. Therefore, you can potentially apply this formula to your inequality.
However, it appears that there might be a typo in your question, as an inequality should have a comparison operator (like <, >, ≤, or ≥). If the full equation was x^2-6ax+5a^2 ≤ 0 or ≥ 0, we could carry out the solution process with the given formula.
I would recommend reviewing the question to ensure that it's written correctly. Once you have the correct inequality, you can apply the quadratic formula and solve for your variable 'x'.
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I NEED HELP 30 POINT!!
Answers
Answer:
35
Step-by-step explanation:
You can easily graph this in desmos for a visual understanding.
The slope of a line is received by (y2-y1)/(x2-x1). Assuming that Days is X and the cost is Y, we get (160-90)/(4-2), and it makes 70/2, which equates out to 35. Because the prices become more and more expensive, the slope is positive 35.
Triangle 1 103, 32 Triangle 2 103,25 are these Triangle similar
Answers
Triangle 1 and Triangle 2 are not similar triangles.
To determine if two triangles are similar, we need to compare their corresponding sides and angles. In this case, we have Triangle 1 with vertices (10, 3) and (32, 10), and Triangle 2 with vertices (10, 3) and (25, 10). Let's compare the corresponding sides and angles:
1. Side lengths:
The length of side AB in Triangle 1 is [tex]√[(32 - 10)^2 + (10 - 3)^2] = √[22^2 + 7^2] = √(484 + 49) = √533.[/tex]
The length of side AB in Triangle 2 is [tex]√[(25 - 10)^2 + (10 - 3)^2] = √[15^2 + 7^2] = √(225 + 49) = √274.[/tex]
2. Angle measurements:
To compare the angle measurements, we need to find the slopes of the sides of the triangles.
The slope of side AB in Triangle 1 is (10 - 3)/(32 - 10) = 7/22.
The slope of side AB in Triangle 2 is (10 - 3)/(25 - 10) = 7/15.
Based on the side lengths and angle measurements, we can see that the side lengths are different and the slopes of the sides are different. Therefore, Triangle 1 and Triangle 2 are not similar triangles.
Similar triangles have corresponding sides that are proportional in length and corresponding angles that are congruent. In this case, the side lengths and angles of Triangle 1 and Triangle 2 are not proportional or congruent, indicating that the triangles are not similar.
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A conical container can hold 120 pie cubic centimeters of water the diameter of the base of the container is 12 centimeters the height of the containers centimeters. If the diameter and height were both doubled the containers capacity would be times its original capacity
Answers
Given that the diameter of the base is 12 centimeters, the radius (r) is half of the diameter, which is 6 centimeters. The original height of the container is h centimeters.
Using the formula for the volume of a cone, we have:
V = (1/3)π(6^2)h
V = 36πh
We are told that the container can hold 120π cubic centimeters of water. Therefore:
36πh = 120π
To find the value of h, we divide both sides of the equation by 36π:
h = 120π / (36π)
h = 10/3
So the original height of the container is 10/3 centimeters.
Now, if we double both the diameter and height of the container, the new diameter would be 2 * 12 = 24 centimeters, and the new height would be 2 * (10/3) = 20/3 centimeters.
The new volume (V') can be calculated using the same formula:
V' = (1/3)π(12^2)(20/3)
V' = 480π/9
V' = 160π/3
To find the ratio of the new volume to the original volume, we divide the new volume by the original volume:
V' / V = (160π/3) / (120π)
V' / V = (160/3) / (120)
V' / V = 4/3
Therefore, the capacity of the container after doubling the diameter and height would be 4/3 times its original capacity.
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find AB using segment addition prostulate 2x-3 24 5x+6
Answers
Answer:
To find the length of AB using the segment addition postulate , we need to add the lengths of segments AC and CB.
AC + CB = AB
Substituting the given lengths:
2x-3 + 24 = 5x+6
Simplifying and solving for x:
21 = 3x
x = 7
Now that we know x, we can substitute it back into the expression for AB:
AB = 2x-3 + 24 = 2(7)-3 + 24 = 14-3+24 = 35
Therefore, the length of AB is 35.
Step-by-step explanation:
2 times the cube root of 72 divided by the cube root of 3888
Answers
Step-by-step explanation:
0.52913368398
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Calc II Question
Find the average value of the function on the given interval
F(x) = sin4x, [-pi, pi]
Correct answer is 45/28 but I'm not sure how to get to that answer
Answers
Answer:
0
Step-by-step explanation:
[tex]\displaystyle \frac{F(b)-F(a)}{b-a}\\\\=\frac{F(\pi)-F(-\pi)}{\pi-(-\pi)}\\\\=\frac{\sin(4\pi)-\sin(-4\pi)}{2\pi}\\\\=\frac{0-0}{2\pi}\\\\=0[/tex]
Not sure how the correct answer is stated as 45/28, but the answer is definitely 0.