Answer:
12.4+16.9= 29.3 feet
Step-by-step explanation:
hope this helps
Someone please help
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Explanation:
On the left side, there are two blocks labeled "y". This represents y+y which turns into 2y.
On this same side, we have three blocks labeled "1". So 1+1+1 turns into 3
Overall the expression for the left side is 2y+3
The right side is formed in the same way, just with different values.
On the right we have four "y" blocks leading to 4y. We also have two "1" blocks leading to 1+1 = 2. The expression for the right side is 4y+2
Ultimately we end up with the equation 2y+3 = 4y+2
The random variable X is normally distributed.
It is given that P(X 7)=0.2.
Find the standard deviation of X. Give your answer as a decimal, rounded to three significant figures.
Answer:
3
Step-by-step explanation:
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Please help ME?!!!!!!
Answer:
29 is your answer. I hope this helps you! Let me know if I got something wrong or if you need more help :)
Step-by-step explanation:
First, apply distributive property to 3(2+8). 3×2 and 3×8.
[tex]15 + (6 + 24) - 4^2[/tex]
Add 6 and 24.
[tex]15 + 30 - 4^2[/tex]
Simplify [tex]4^2[/tex]. [tex]4^2[/tex] is the same as 4×4. 4 times 4 is 16.
[tex]15 + 30 - 16[/tex]
Add 15 and 30.
[tex]45-16[/tex]
Subtract.
[tex]29[/tex]
29 is your answer. I hope this helps you! Let me know if I got something wrong or if you need more help :)
What is the constant rate of change of the table below?
Answer:
35 miles/hour
Step-by-step explanation:
Divide any number of miles by the corresponding number of hours above.
70 miles / 2 hour = 35 miles/hour
Answer: 35 miles/hour
The table below shows the approximate percent of students who sent applications to two colleges in various years since 1985.
A regression equation for this line is y = -0.42x 19.26
What does the slope and y-intercept indicate?
a. The slope indicates that the percentage in 1985 should have been about 19%. The y-intercept indicates that the percent is falling at about 0.4% each year.
b. The slope indicates that the percent is falling at about 0.4% each year. The y-intercept indicates the percent in 1985 should have been about 19%
c. The slope indicates that the percent has remained the same each year. The y-intercept indicate the percent in 1985 should have been 22%
d. There is not enough information to determine what the slope and y-intercept indicate.
Answer: b. The slope indicates that the percent is falling at about 0.4% each year. The y-intercept indicates the percent in 1985 should have been about 19%
Step-by-step explanation:
The slope of straight line indicates the rate of change and in a regression equation is the m in: y = mx + c
In the regression equation of y = -0.42 + 19.26, the slope is -0.42 indicating that the rate of change has been -0.42% which means that the percent is falling at about 0.42% per year.
The y intercept (c) measures the rate at the origin and in this equation is 19.26. As the origin of the line is 1985, this means that the percent in 1985 should have been about 19%.
Answer:
B.
Step-by-step explanation:
The partially filled contingency table gives the frequencies of the data on age (in years) and sex from the residents of a retirement home.
60-69 70-79 Over 79 Total Male 14 6 5 Female 6 5 4 Total
What is the relative frequency for males?
a. 23/40
b. 5/4
c. 8
d. 21/40
Answer:
the correct answer is 8
Step-by-step explanation:
Write -3.625 as a mixed number
Answer:
negative three five over eight
Step-by-step explanation:
Estimate 63,266 -42,657 by first rounding each number to the nearest thousand.
Answer:
106,000
Step-by-step explanation:
This graph shows the solution to which inequality?
Answer:
The graph shows the solution of the inequality y > [tex]\frac{4}{3}[/tex] x - 2 ⇒ D
Step-by-step explanation:
In the inequality,
If the sign of inequality is ≤ or ≥, then the line that represents it must be a solid lineIf the sign of inequality is < or >, then the line that represents it must be a dashed lineIf the sign of inequality is > or ≥, then the shaded area must be over the lineIf the sign of inequality is < or ≤, then the shaded area must be under the lineFrom the given graph
∵ The slope of the line = [tex]\frac{2--6}{3--3}[/tex] = [tex]\frac{2+6}{3+3}[/tex] = [tex]\frac{8}{6}[/tex] = [tex]\frac{4}{3}[/tex]
∵ The y-intercept is (0, -2)
∵ The line is dashed and the shaded area is over the line
→ By using the 2nd and 3rd notes above, the line is dashed and
the sign of inequality is >
∴ The inequality is y > [tex]\frac{4}{3}[/tex] x - 2
∴ The graph shows the solution of the inequality y > [tex]\frac{4}{3}[/tex] x - 2
convert n √a into pure surds
Answer:
√n²a
Step-by-step explanation:
aaand this app needs 20 characters
What is 47/50 as a decimal? What is 47/50 as a percentage!
Really need help
Answer:
0.94 and 94%
Step-by-step explanation:
Answer:
0.94 or 94%
Step-by-step explanation:
Once you find the decimal form, multiply it by 100 to gain the percentage form
If it was 0.5, for example, it would be 50% as a percentage
Ms. Duncan went to dinner with her family and the cost for her food was $42. She wants to
give a 20% tip. How much money should Ms. Duncan leave for tip? *
Answer:
Ms. Duncan should leave a $8.40. tip.
Linda left home and drove for 2 hours. She stopped for lunch then drove for another 3 hours at a rate that is 10 mph higher than the rate before she had lunch. If the total distance Linda traveled is 250 miles, what was the rate before lunch
Answer:
44 mph
Step-by-step explanation:
Given that:
Before lunch :
Time taken = 2hrs ; at speed = x mph
After lunch :
Time taken = 3hrs ; at speed = x + 10 mph
Total distance covered = 250 miles :
Distance = speed * time
(2 * x) + (3 * (x + 10)) = 250
2x + 3x + 30 = 250
5x + 30 = 250
5x = 250 - 30
5x = 220
x = 220/ 5
x = 44 mph
Rate before lunch is 44mph
Select true or false to tell whether the following disjunctions are true or false. Use the truth table if needed.
5-3 = 15 or 7 + 5 = 20
True
False
9514 1404 393
Answer:
False
Step-by-step explanation:
The disjunction evaluates to ...
false or false
In order for an "or" statement to evaluate to True, at least one of the elements needs to be true. That is not the case here, so the disjunction is false.
Consider the graph below.
10px
4
2
-10
-4
-2
8
10
0 2
4
What is the equation of the line in slope-intercept form?
A y=x+8
By=2 - 8
y = 8x + 8
Dy = 8x - 8
Answer:
B. y = x - 8
Step-by-step explanation:
✔️First, find the slope of the line using two points on the line, say (0, -8) and (8, 0):
[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{0 - (-8)}{8 - 0} = \frac{8}{8} = 1 [/tex]
slope (m) = 1
✔️Find the y-intercept (b):
The y-intercept is -8. The line intercepts the y-axis at y = -8.
b = -8
✔️Next, substitute m = 1, and b = -8 into y = mx + b:
Thus:
y = (1)x + (-8)
y = x - 8
Which graph represents the equation y − 6 = -(x − 4)?
Answer: Am thinking (0,10)
Step-by-step explanation:
Answer:0,10, 10,0.
Step-by-step explanation:
The equation is in point-slope form, y − y1 = m(x − x1), where the slope, m, is -1, and the line goes through the point (4,6).
Use the slope to find a second point on the line. So, from the point (4,6), go down 1 unit and to the right 1 unit. Therefore, the line also goes through the point (3,5).
This is the graph showing a line that goes through (4,6) and (3,5).
Please help!! :( Needs to be done soon
Step-by-step explanation:
12x - 6 3x+3 6(2x-1)
1 = 6 1 = 6 1 = 6
2 = 18 2 = 9 2 = 18
3 = 30 3 = 12 3 = 30
The equivalent expressions are 12x-6 and 6(2x-1)
The slope of a line parallel to y + 2x + 1 is 2.
False
True
Answer:
False
Step-by-step explanation:
solve for x if both sides are similar
Answer:
x = 12
Step-by-step explanation:
we can put this is a proportion: (new side 1) / (old side 1) = (new side 2) / (old side 2)
so in this case, 18 would be old side 1, x would be new side 1
12 would be old side 2, and 8 would be new side 2
plug these in: x/18 = 8/12
cross multiply 18 and 8: x = 144/12
now simplify: x = 12
Given points ( - 2, 3) and ( 9, 3 ) which expression can be used to find the distance between the two points?
Answer:
|-2| + |9|= 11
Step-by-step explanation:
d=(9−(−2))2+(3−3)2−−−−−−−−−−−−−−−−−−√
d=(11)2+(0)2−−−−−−−−−−√
d=121+0−−−−−−√
d=1–√21
d=11
could be confusing.
If a parallelogram has a 90 degree angle then it is also a____
(hint: all sides are not equal)
Answer:
rectangle?square?
Step-by-step explanation:
I thonk
Solve for x.
Question 4 options:
A)
12
B)
13
C)
10
D)
11
Answer:
A cuz x+6 is double x-3 so divide them and equate it to 2 you'd get x+6 = 2x-6
12=2x-x
Liz flips a coin 70 times. The coin lands heads up 49 times and tails up 21 times. Com statement. The theoretical probability of the coin landing heads up is (____%)
A coin can either land on heads or land tails, so it has a 50% chance of landing on heads.
The theoretical probability is what is expected.
The answer would be 50%
Answer:
33%
Step-by-step explanation:
Keith is making a spice rack for his mom in woodworking class. He starts with a board that is 31.25 inches long. Then, he cuts it into 5 equal pieces for the shelves. How long will each shelf be?
Answer:
the answer is ......
Step-by-step explanation:
Can someone help me please!!
A frog jumped 9.5 meters. Approximately how many feet did the frog jump if 1 meter is equivalent to about 3.28 feet?
Help me it is due Today!!!
1/8 × 2/3=?
4/5 × 3/8=?
8/9 × 1 1/4= ?
5 1/3 × 2 1/4=?
1/4 × 9 1/2
3/5 × 10/21
4/5 × 3
1/8 × 4 2/3
20 × 3 1/5
2 1/3 × 2 1/3
Answer:
1/12
3/10
22/9
357/4
91/8
2/7
12/5
7/4
124
49
hope this will help you
Answer:
i dont understand the question please be more precise
Step-by-step explanation:
PLEASE HELP! Is the following trinomial factorable why or why not
h=-4(4t^(2)-9t+2)
Answer:
h = -4(t - 2)(4t - 1)Step-by-step explanation:
Given trinomial
h= -4(4t² - 9t + 2)Let's try to factor 4t² - 9t + 2
First find it's zeros:
t = (9 ± √9² - 4*4*2)/(2*4) t = (9 ± √81 - 32)/8t = (9 ± 7)/8t = 2 and t = 1/4So yes, it is factorable:
4t² - 9t + 2 = 4(t - 2)(t - 1/4)or4t² - 9t + 2 = (t - 2)(4t - 1)The given trinomial factored:
h = -4(t - 2)(4t - 1)Answer: Yes, this trinomial -4(4t² -9t + 2) is factorable.
It is h =(-4)(4t -1 )(t -2) converted from the explanation
[tex]y\ =\left(-4\right)\left(4x\ -1\right)\left(x\ -2\right)[/tex]
A graph of the equation is in the attachment. There are two equations, but only one graphed parabola because they are identical.
Step-by-step explanation: I am using x in place of t in this explanation, and leaving out the factored (-4) to simplify.
Using the systematic new AC Method to factor trinomials (Socratic Search) Starting with a quadratic equation in the form
y = ax² + bx + c
This involves converting the equation by multiplying the leading coefficient, a, times the constant, c
y =4x² –9x + 2
=4(x + p)(x + q)
Converted trinomial:
y' = x² –9x + 8
= (x + p')(x + q').
Here p' and q' will have the same – signs because the b term is negative and the c term is positive.
Factor pairs of ac = 8 are -1 and –8. This sum is –9 = b. Then p' = -1 and q' = -8.
Then divide the second factor by the original coefficient, 4.
Replacing the original leading factor (-4) the factored equation looks like
y = -4(4x - 1)(x - 2)
To solve for x
p =p’/a = ¼ or 4x - 1 = 0 4x = 1 x = ¹/₄
and
q ='q/a
= 8/4 = 2 OR x -2 = 0 x = 2
The second attachment shows some other ways to set up the equation without the (-4) to solve, and then replace that factor. You get the same values for x.
I hope this helps and is not too confusing. There may be other ways to factor this equation.
The $230.00 digital camera Anne purchased was on sale for 15% off. What amount did Anne get off the price?
A $23
B $46
C $34.50
D $35.50
Answer: C $34.50
Step-by-step explanation: The 15% of 230 is 34.50, so the digital camera was $34.50 off.
8.25 equals how many ones?
Answer:
i think 20.95 centimetres
Dan borrowed money from his parents and he pays back his parents the same amount of money every month He records his payment schedule in a table Aportion
of his payment schedule is shown below, where m represents the month and represents the amount, in dollars that he owes
Month() Amount Owed (s) in Dollars
800
Answer:
D
Step-by-step explanation:
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