What is the rate of change from 1 to 3

Answers

Answer 1
Answer:
The rate of change is    (amount of the change) / (time it took to change) .

Amount of the change = (3 - 1) = 2 .

Rate of change = (2) / (time it took to change from  1  to  3) .


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I was walking to the store at the same time as my friend Angela. No matter what, She has always gotten there twice as fast as me. Half way to the store her friend picks her up on his scooter which was 10 times faster than me. She got there in 30 minutes. How long did it take for me to get there?

Answers

let's call your speed "a"

her walking speed is then "2a"

and her friend's scooter speed is 10 a

let's also call the distance you need to walk "d"

so the time (t)you need is:

d/t=a
t=d/a

and her time is:
 t=(d)/(2) /2a+ (d)/(2) /10a
(half a distance with the speed of 2a and half a distance (d/2) with the distance of 10 a

now we count (we know that her time is 30 minutes)

30= (d)/(4a)+(d)/(20a) //multiply by 20a

600a= 5d+d
600a=6d/divide by 6
100a=d

Now, in order to calculate your time we need to calculate:

t=d/a

but we know how much is d now!
t=(100a)/(a)=100

which means that you need 100 minutes, or 1 h 40 minutes!!!

Which is a factor of x2 + 8x – 48?

Answers

so x^2+8x-48
it can be written in the form
ax^2+bx+c

so since the 'a' term=1 we want it in form
(x +/- something1 )(x +/- something2 )
so basically, something1 times something 2=c and something 1+something 2=b

c=-48
b=8

factor -48 and fiind what 2 factors add to 8 (obviously one has to be positive and is 8 more than the negative [negative is smaller])
-48=
-1 times 48 no
-2 times 24 no
-3 times 16 no
-4 times 12 yes
-4+12=8



therefor it is
(x-4)(x+12) or (x+12)(x-4)

so the answer would be the one with either (x+12) or (x-4) (since you didn't include answer choices)

(x+12) or (x-4) would be the right choice

this trinomial factored is:
(x + 12)(x - 4)
either of these would be considered a factor.

Write an expression to represent the volume of the composite figure, 1in 1in 3in 5in 3in

Answers

1 to the power of 2
Times
3 to the power of 2
Times
5

Answer:

1 to the power of 2

Times

3 to the power of 2

Times  

5

Step-by-step explanation:

In a survey, 15 high school students said they could drive and 15 said they could not. Out of 60 college students surveyed, 30 said they could drive. Micah concluded that if someone is in college, that means the person is more likely to drive. Is Micah’s conclusion correct? Explain

Answers

No, Micah is not correct. Since there are equal numbers of people in each group who drive and who do not drive, the relative frequency for each is 50%. Because the relative frequencies are the same, there is no association between the variables.

Based on the survey figures by Micah of the college students who could drive, we can infer that Michah's conclusion is not correct.

Why is Michah not correct?

Out of 60 college students surveyed, only 30 said they could drive. This means that only 50% could drive:

= 30 / 60

= 50%

A 50% relative frequency is not good enough to make the conclusion that one is more likely to drive in college. Rather it means that they are equally likely to drive or not to drive.

Find out more on relative frequency at brainly.com/question/3857836.

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Pleas helpThe cube has a volume of 27 in3.

Find the volume of a scaled image with a scale factor of 2.

? in3

Cube with a side length of three inches

Answers

Actual cube has sides ∛27 = 3 inches.

When you scaled it with a factorof two, each side will become 3 x 2 = 6 inches.

The volume of the new cube is (6 in)^3 = 216 in^3

Realize that you could calculate it by raising the scale factor to the third power.

2^3 = 8

27 x 8 = 216
*- 27 cubed by 2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Whats the difference between abs extreme values and extreme values?

Answers

The difference between abs extreme values (absolute extreme values) and extreme values is:
The absolute extreme values, or extrema, refer to the maximum and minimum values of a function while aextreme value, or extremum (plural extrema), is the smallest (minimum) or largest (maximum) value of a function.

>A function f is said to have an absolute maximum on an interval I at x0 if f(x0 ) is the largest value of f on I; that is, f(x0 ) ≥ f(x) for all x in the domain of f that are in I.