Answer: i think 20
Step-by-step explanation:
What is the volume of a
rectangular prism that has
a height of 3 inches, a
length of 7 inches, and a
width of 4 inches?
Answer:
84in
Step-by-step explanation:
witch are linear and witch are not linear!?
Step-by-step explanation:
a linear relationship or function is described by
y = ax + b
that means that the difference from one y value to the next is defined by a constant ratio of y diff / x diff.
so, the first one is not linear.
because the difference ratios are not constant :
(1-0)/(1-0) = 1
(4-1)/(2-1) = 3
(9-4)/(3-2) = 5
the second one is linear.
the difference ratios are constant :
(1-0)/(1-0) = 1
(4-1)/(4-1) = 1
(9-4)/(9-4) = 1
the third one is not linear.
the difference ratios are not constant :
(3-1)/(3-2) = 2
(9-3)/(4-3) = 6
(27-9)/(5-4) = 18
the fourth one is linear.
the difference ratios are constant :
(5-1)/(4-2) = 4/2 = 2
(9-5)/(6-4) = 4/2 = 2
(13-9)/(8-6) = 4/2 = 2
The following are the ages (years) of 5 people in a room:
13, 13, 19, 23,19
A person enters the room.
The mean age of the 6 people is now 21.
What is the age of the person who entered the room?
Answer:Answer:
the added person age is 26
Step-by-step explanation:
let the added person age is A
the six person mean is (23+19+12+21+13+A)/6=19
=> 88+A/6=19
=>A=(19×6)-88
there fore A=26
Answer:
39
Step-by-step explanation:
13 + 13 + 19 + 23 + 19 + x = 21
6
Combine like terms
(87 + x) / 6 = 21 Multiply both sides by 6
(87 + x ) = 21 * 6
87 + x = 126 Subtract 87 from both sides
x = 126 - 87
x = 39
The 6th person entering the room was 39
a ski area claims that its lifts can move 47000 people per hour. if the average lift carries people about 200m (vertically) higher, estimate the maximum total power needed?
The peak is located at R=1 according to a power curve analysis. To put it another way, the load and source resistance must match.
At what point does maximum total power occur?The ski area's name needs to be changed first. Squaw is not a kind way to refer to a woman. It is an expression that refers to female genitalia. (a decent slang equivalent in English begins with "c" and rhymes with "runt") During my time as a teacher in an Indian school, I learned this in a very embarrassing manner.
If we suppose that each person weighs roughly 70 kilograms (154 lbs) on Earth, then the power required to simply raise the people is P = W/t, and since W = mgh in this situation, P = W/t = mgh/t = (47,000 people)(70 kg/person).
(2 MW) = (1791222.222 W)(9.8 N/kg)(200 m)/(3600 s).
The complete question is:
Squaw Valley ski area in California claims that its lifts can move 47,000 people per hour. If the average lift carries people about 200 m (vertically) higher, estimate the maximum total power needed.
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Which describes why digital signals are a more reliable way to encode and transmit information than analog signals? Multiple choice question. Noise builds up on digital signals only when the signals travel long distances. Noise is easily filtered out without damage to the original signal because only one of two values is expected. Noise is easily filtered out without damage to the original signal because a narrow range of values is expected. Noise does not build up on digital signals when they are transmitted, unlike analog signals.
The solution is Option B.
Noise is easily filtered out without damage to the original signal because a narrow range of values is expected
What are digital signals?A digital signal encodes data as a sequence of discrete values. A digital signal can only have one value from a finite set of possible values at any given time. A signal which is a discrete function of time, i.e. non-continuous signal, is known as digital signal. Digital computers and digital phones are some of the examples of digital signals
The three types of digital signals are
Continuous-Time/Analog Signal
Discrete-Time Signal
Digital Signal
Given data ,
The digital signals are a more reliable way to encode and transmit information than analog signals
Because , while transmitting information through digital signals , they have less interference over long distances and digital signals offer better clarity
The digital devices only record pieces of sound waves, not full waves.
Now , Analog technology stores information as sound waves; digital technology stores it as strings of ones and zeroes.
Hence , noise is easily filtered out without damage to the original signal because a narrow range of values is expected
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Please help quickly
ES=____ units.
Round your answer to the nearest tenth.
ES is 8√2 units from the given graph.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The given two points from the graph are S(4, 4) and E(-4, -4)
We need to find ES which means the distance between two points in units.
The length along a line or line segment between two points on the line or line segment.
Distance=√(x₂-x₁)²+(y₂-y₁)²
√(-4-4)²+(-4-4)²
√(-8)²+(-8)²
√64+64
√64×2
8√2 units.
Hence, ES is 8√2 units from the given graph.
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what is the y-intercept of a line that passes through the points (2, -2.5) and (4, -2)?
Answer:
Step-by-step explanation:
To find the y-intercept, we can use the slope-intercept form of a linear equation which is y = mx + b, where m is the slope of the line, and b is the y-intercept.
Since the line passes through the points (2, -2.5) and (4, -2), we can use the point-slope form of a linear equation, which is y - y1 = m(x - x1), where (x1, y1) is a point on the line and m is the slope of the line.
To find the slope(m) we can use the rise over the run formula ,
m = (y2 - y1) / (x2 - x1) = (-2 - (-2.5)) / (4 - 2) = -0.5
then we can substitute the values in point-slope form
y - (-2.5) = -0.5 (x - 2)
And now we can use x = 0,
y = -0.5(0-2) -2.5 = 1.5
so the y-intercept of the line is 1.5
Jessica and Josh are selling entertainment books to raise money for the art room after school one book sells for $18 Jessica receive the prize for selling the most books in the school Jessica sold 13 times more books than Josh together they sold 280 books how many did each of them sell
Based on the question above, Jessica sold 260 books and Josh sold 20 books.
What is the math equation about?Let x be the number of books Josh sold
We know that:
Jessica sold 13x books
Together they sold 280 books
So we can set up an equation:
x + 13x = 280
14x = 280
x = 20
Josh sold 20 books
Jessica sold 13 * 20 = 260 books
Therefore Jessica = 260 books sold and Josh = 20 books sold.
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ANYONE PLEASE HELP !!!
Answer:
2x^2+1
Step-by-step explanation:
4x^2+2-2x^2-1
Group like terms:
4x^2-2x^2+2-1
2x^2+2-1
2x^2+1
Answer:
2x^2 + 3
Step-by-step explanation:
Subtracting functions is similar to subtracting normal numbers. An easy way to do it is to put one over the other and then combine like terms.
4x^2 + 2
- 2x^2 - 1
= 2x^2 + 3
Even though it looks like you would do 2-1, the three is because you're adding -(-1) (aka 1) to 2.
Approximate the solution of the system to the nearest thousandth.
y= -4x^2 + 5x + 1
y= -3^x
i only got this far:
-4x^2 + 5x + 1 = -3^x
please help! thanks :)
Answer:
(-0.283, -0.733)
Step-by-step explanation:
There are various ways in which to approximate the solution. One is to use a graphing calculator and graph the two functions separately, then determine the point of intersection. The first function has a parabolic graph that opens down, whereas the second function has an exponential graph which heads downward as x increases.
At first try I found that the two graphs intersect in Quadrant III, at approximately (-1/2, -3/4).
Next I used my calculator's CALC tools, specifically that which finds the coordinates of the intersection of two graphs, ending up with these coordinates: (-0.283, -0.733). These coordinates are to the nearest thousandths.
If and when you take Calculus, you'll learn Newton's Method for Finding Roots, which doesn't require a graphing calculator.
. A student bought a book for $7.50 and a pen. The total cost was $9.50. Which of the following equations can be used to find the cost of the pen?
A p = 7.5b B p = 9.5b C 9.50 +p = 7.50 D 7.50 + p = 9.50
Answer:
The answer is D: 7.50 + p = 9.5
Step-by-step explanation:
The cost of the book(7.5) plus the cost of the pen(p) equals the total cost which was 9.5
Someone please help!!! Due tonight, I’ll give brainliest!!!
Answer:
2 * 0.75 + 0.50 + 4 * 1.25
$7.00
Step-by-step explanation:
Expression
2 * 0.75 + 0.50 + 4 * 1.25
Evaluate
1.50 + 0.50 + 5.00
$7.00
help me solve this please
Answer:
g=44°
k=70°
h= 136°
m= 110°
Answer:
h= 136°
g=44°
m= 110°
k=70°
Step-by-step explanation:
Have a nice day!
I need help with this..there’s an image attached!
May someone help me please ? I don't really understand this, and I need it turned in.
9514 1404 393
Answer:
x^2 +y^2 +6x -18y +65 = 0
Step-by-step explanation:
The short of it is that you're being asked to rewrite each of these standard-form equations into general form: f(x,y) = 0.
It can save you a little effort if you recall that the square of a binomial is ...
(a +b)² = a² +2ab +b²
Otherwise, you would use the distributive property to get ...
(a +b)(a +b) = a(a +b) +b(a +b)
= a² +ab +ab +b²
= a² +2ab +b²
__
For the given equation, expanding the squares gives ...
(x +3)² +(y -9)² = 5²
(x² +6x +9) +(y² -18y +81) = 25 . . . . . expand the squares
x^2 +y^2 +6x -18y +65 = 0 . . . . . . . . subtract 25; put in order of decreasing powers of the variables
Do anybody know what this is need to do this by today D=29m
FOR 50 POINTS + BRAINLIEST! (NEED ASAP)
Answer:
If Lola wants, then Lola gets
Hypothesis - She is a spoiled brat who has rich parents. But where did they get their wealth?
Conclusion - Her parents are hard workers who have made it up the ladder of wealth.
2. If the measure of an angle is 58*, then the angle is acute
Hypothesis - acute angles are from 1* to 89* which makes it the smallest angle. But why when the word acute means severe?
Conclusion - We know that anything below 90* is an acute angle.
This should be a start. I will finish in a sec...
Answer:
1. Hypothesis: Lola wants.
Conclusion: Lola gets.
2. Hypothesis: The measure of an angle is 58°.
Conclusion: The angle is acute.
3. Hypothesis: The segments are diagonals of a rectangle
Conclusion: The segments are congruent.
4. Hypothesis: You are a Filipino.
Conclusion: You are a God-fearing person.
5. Hypothesis: You are a good citizen.
Conclusion: You will obey rules and regulations.
Step-by-step explanation:
In a statement, the Hypothesis is the part after the "if", and the Conclusion is the part after the "then".
1. If Lola wants, then Lola gets.
Hypothesis: Lola wants.Conclusion: Lola gets.2. If the measure of an angle is 58°, then the angle is acute.
Hypothesis: The measure of an angle is 58°.Conclusion: The angle is acute.3. If the segments are diagonals of a rectangle, then the segments are congruent.
Hypothesis: The segments are diagonals of a rectangleConclusion: The segments are congruent.4. If you are a Filipino, then you are a God-fearing person.
Hypothesis: You are a Filipino.Conclusion: You are a God-fearing person.5. If you are a good citizen, then you will obey rules and regulations.
Hypothesis: You are a good citizen.Conclusion: You will obey rules and regulations.How do you use sin Cos in C?
We can use the sin (), and cos () functions in C programming to find the sine and cosine values of any problem.
sin( ), cos( ) and tan( ) functions in C are used to find sine, cosine and tangent values.
sinh( ), cosh( ) and tanh( ) functions are used to find hyperbolic sine, cosine and tangent values.
exp( ) function is used to find the exponential “e” to the xth power. log( ) function is used to find the natural logarithm and the log10( ) function is used to find the base 10 logarithms.
The” math.h” header file supports all these functions in the C language.
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A line on a coordinate plane has a y-intercept of 5 and a slope of 3.what is the slope intercept form of the line?
Answer:
y = 3x + 5
Step-by-step explanation:
Slope intercept form is
y = mx + b
where m is the slope and b is the y-intercept
Given m = 3 and b = 5
y = 3x + 5
what is the answer thank ya mate
Answer: The ship is going to another planet.
Step-by-step explanation:
I hate i-ready,
Your welcome mate
What are angles 2 and 8 called?
The Angle 2 and angle 8 in the given figure are called as the alternate interior angle and they are equal .
What are Alternate Interior Angles ?
The alternate interior angles are defined as the angles that are formed when a transversal intersects the two coplanar lines.
The alternate interior angles lie on inner side of parallel lines but they are on the opposite sides of the transversal.
So , From the figure we can conclude that the angle 2 , angle 8 and angle 3 and angle 5 are the alternate interior angles .
Therefore , the angle 2 and 8 are alternate interior angles.
The given question is incomplete , the complete question is
What are the angles 2 and 8 called in the given figure ?
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What is the sum
No links please
Answer:
Step-by-step explanation:
he total amount resulting from the addition of two or more numbers, amounts, or items
Answer:
(2/5x+1/5x)+(5/8-1/4)
3/5x+(5/8-2/8)
3/5x+3/8
Use the dropdown menus to explain how to use mental math to express 12/25 as a percent.
choose your answer...
the numerator and the denominator by
choose your answer...
to get 48/100, which is the same as
choose your answer...
Answer:
In the story Dark They Were And Golden Eyed, by Ray Bradbury, a great story that he develops themes of fear, change and symbol and label. The author uses techniques of similes, metaphors and personification that explain and convey them to the reader very powerfully.
Step-by-step explanation:
hope it helps
please help me I’ll give brainliest! ://
Answer:
The answer would be -10x-9
-2(4 - 3x) - 6x = 10
Answer:
this is a problem with no solution look it up if you dont beleve me
Step-by-step explanation:
A cylinder's height equals the diameter of its base. What fraction of the total surface area of the cylinder is the total area of the two bases
If the Cylinder's height equals to the diameter of its base , then the fraction of the total surface area of the cylinder to the total surface area of the two bases is 1/3 .
The curved surface area of the cylinder with height "h" and radius "r" is written as ⇒ [tex]2\pi rh[/tex] ;
the area of the top and bottom of the cylinder is ⇒ [tex]\pi r^{2} + \pi r^{2}[/tex] = [tex]2\pi r^{2}[/tex] ;
the total surface area of the cylinder will be ⇒ [tex]2\pi rh[/tex] [tex]+2\pi r^{2}[/tex] ....equation(1)
it is given that the height of cylinder is equal to the diameter of the base ,
that means ; [tex]h = 2r[/tex]
Substituting the value [tex]h = 2r[/tex] in the equation(1) ,
we get ,
total surface area of cylinder = [tex]4\pi r^{2} +2\pi r^{2}[/tex] = [tex]6\pi r^{2}[/tex]
So , the required fraction is = [tex]\frac{2\pi r^{2} }{6\pi r^{2} }[/tex] ,
On simplifying ,
we get ,
= [tex]\frac{1}{3}[/tex] .
Therefore , the fraction of two bases to the total surface area is [tex]\frac{1}{3}[/tex] .
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Solve the equation.
4(x + 2) = 40
Answer:
X=9
Step-by-step explanation:
4x+8=40
4x=40-8
4x=32
X=9
Answer:
[tex]\small\mathfrak\green{here \: is \: your \: solution...} \\ \\ \small\mathfrak\green{4(x + 2) = 40} \\ \\ \small\mathfrak\green{4x + 8 = 40} \\ \\ \small\mathfrak\green{4x = 40 - 8 } \\ \\ \small\mathfrak\green{4x = 32} \\ \\ \small\mathfrak\green{x = 32 \div 4} \\ \\ \small\mathfrak\green{x = 8}[/tex]
[tex]\small\boxed{\mathfrak{ Hope \: it \: helps ....}}[/tex]
2. Write a factored form function, f(x) for a cubic function that has zeros (- 7, 0) and (3, 0)
The cubic equation in factor form f(x) = (x + 7) · (x - 3) · (x - r) contains zeros (- 7 , 0) and (3, 0), for r = 0: f(x) = (x + 7) · (x - 3) · (x - r).
How to derive a cubic equation in factor form
Cubic functions are polynomials with grade 3 and whose standard form is described by the following form:
y = a · x³ + b · x² + c · x + d
Where a, b, c, d are real coefficients. The factor form of a cubic function is described by the following definition:
y = a · (x - r₁) · (x - r₂) · (x - r₃)
Where:
a - Lead coefficient.r₁, r₂, r₃ - Real zeros.Replace all known variables in factor form of cubic equation: (a = 1, r₁ = - 7, r₂ = 3, r₃ = r)
f(x) = (x + 7) · (x - 3) · (x - r)
Variable r means that there is more than one answer concerning the expression, if we assume that r = 0, then the particular solution is f(x) = (x + 7) · (x - 3) · x.
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Simplify.
8-3(4-2x)
i’ll mark brainliest :)
Answer:
A. 6x - 4
Step-by-step explanation:
[tex]\sf 8-3(4-2x)[/tex]
Distribute:-
[tex]\sf 8+(-3)(4)+(-3)(-2x)[/tex]
[tex]\sf 8+-12+6x[/tex]
Combine Like Terms:-
[tex]\sf (6x)+(8+-12)[/tex]
[tex]\sf 6x+-4[/tex]
** + * - = -**
[tex]\sf 6x-4[/tex]
Therefore, option A. 6x - 4 is your answer!
_____________________
Hope this helps!
Have a great day!
d minus 2 = 4.6 please help meeee im not good at mathhh
[tex]d-2=4.6[/tex]
Add 2 to both sides:
[tex]d-2+2=4.6+2[/tex]
[tex]\fbox{d = 6.6}[/tex]