So, you know that x=-7 and y=3, and you have the expression x - y^3, and when the question says "evaluate"(in this context) it means simplify into the smallest amount of terms possible. So you substitute what x is equal to into the expression and the same for y. so you get (-7) - (3)^3. Then you use pemdas to simplify.
Answer:
<u>Circumference= 56.52km Area=254.47km </u>
Step-by-step explanation:
To find the area of a circle with the radius, square the radius, or multiply it by itself. Then, multiply the squared radius by pi, or 3.14, to get the area.
The circumference = π x the diameter of the circle (Pi multiplied by the diameter of the circle).
Hope this helps
Answer:
Step-by-step explanation:
Unfortunately, you haven't shared the graphs from which you're supposed to choose.
I would draw a number line. Place a dot at 0. Now move 4 spaces to the left and place another dot. Repeat this twice. Your final dot will represent 3(-4).
For every change in x, y changes 2/pi.
In order to find this we first need to evaluate the expression at the intervals.
x = 0
f(x) = 1 + sinx
f(0) = 1 + sin0
f(0) = 1 + 0
f(0) = 0
x = pi/2
f(x) = 1 + sinx
f(pi/2) = 1 + sin(pi/2)
f(pi/2) = 1 + 1
f(pi/2) = 2
So the total change in y is 1. So we divide that by how much x has changed in that interval to find the average rate of change.
1 / (pi/2) = 2/pi
The second number is 25% larger than the first number
The first number is 20% smaller that the second number
Step-by-step explanation:
Let us revise the percentage of increasing and decreasing
- Increasing% = [(large - small)/small] × 100%
- Decreasing% = [(large - small)/large] × 100%
∵ The two numbers are 20 and 25
∵ 25 is the larger
- Find the percentage of increasing to find the second number
is larger than the first number by what percent
∴ The large number is 25
∴ The small number is 20
∴ Increasing% = × 100%
∴ Increasing% = 25%
∴ The second number is 25% larger than the first number
- Find the percentage of decreasing to find the first number
is smaller than the second number by what percent
∵ Decreasing% = × 100%
∴ Decreasing% = 20%
∴ The first number is 20% smaller than the second number
The second number is 25% larger than the first number
The first number is 20% smaller that the second number
Learn more:
You can learn more about the percentage in brainly.com/question/12284722
#LearnwithBrainly