Let f(x) = 7x - 13. Find f-1(x).

Answers

Answer 1

Answer: $f(x)=7x-13 \n \n y=7x-13 \ \ \ |+13 \ny+13=7x \ \ \ |/ 7 \nx=(1)/(7)y+(13)/(7) \n \n\boxed{f^(-1)(x)=(1)/(7)x+(13)/(7)}$

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I have 18 ones 15 hundreds 15 tens 8thousands what number am I

Answers

8 thousands is equal to 8000.
15 hundreds is equal to 1500.
15 tens is equal to 150.
18 ones is equal to 18.

So just add them up.
8000 + 1500 = 9500.
9500 + 150 = 9650.
9650 + 18 = 9668.

The number is 9668

Multiply c^2(c^2-10c+25)

Answers

Step-by-step explanation:

c^2( c^2-10c+25)

=c^4 - 10c^3 + 25c^2

Median of these numbers 3,7,3,9,4,7,3,7,5,2

Answers

4.5 because if you oder the number from least to greatest then youll be left with four and five in the middle and 4.5 is what comes between those numbers

A scooter travels 30 feet in 2 seconds at a constant speed. Complete the double number line to show the distance the scooter travels after 1, 3, 4, and 5 seconds. What is the speed of the scooter in feet per second? [ Select ] What is the distance the scooter travels after 3 seconds? [ Select ] A skateboard travels 55 feet in 4 seconds. Is the skateboard going faster, slower, or the same speed as the scooter? [ Select ]

Answers

Answer:

1) 15 feet per second

2) distance after 3 seconds 45 feet

3) slower

Step-by-step explanation:

1) 30/2 = 15

2) 15 x 3

3) 55/4 = 13.75 < 15

Final answer:

The scooter travels 15 feet after 1 second, 45 feet after 3 seconds, 60 feet after 4 seconds, and 75 feet after 5 seconds. The speed of the scooter is 15 feet per second. The skateboard is going slower than the scooter.

Explanation:

To complete the double number line, we need to determine the distance the scooter travels after 1, 3, 4, and 5 seconds. Since the scooter travels 30 feet in 2 seconds at a constant speed, we can determine the distance for each time by finding the proportion:

After 1 second: 30 feet / 2 seconds = 15 feet

After 3 seconds: 30 feet / 2 seconds * 3 seconds = 45 feet

After 4 seconds: 30 feet / 2 seconds * 4 seconds = 60 feet

After 5 seconds: 30 feet / 2 seconds * 5 seconds = 75 feet

The speed of the scooter is the same as its constant speed, which is 30 feet / 2 seconds = 15 feet per second.

The distance the scooter travels after 3 seconds is 45 feet.

Since the scooter traveled 30 feet in 2 seconds, and the skateboard traveled 55 feet in 4 seconds, we can compare their speeds. The scooter traveled 30 feet in 2 seconds, which means its speed is 30 feet / 2 seconds = 15 feet per second. The skateboard traveled 55 feet in 4 seconds, so its speed is 55 feet / 4 seconds = 13.75 feet per second. Therefore, the skateboard is going slower than the scooter.

Learn more about Speed here:

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Jake mowed 216 sq.yd. of lawn in 3 hr. Ricky mowed 108 sq.yd. of lawn in 2 hr.Can you fill in the values for Ricky?

Ricky’s square yards mowed:

Ricky’s time (hr.):

Answers

Final answer:

To find Ricky's values, set up a proportion and solve for Ricky's square yards mowed and time.

Explanation:

To find the values for Ricky, we can use a proportion. Since Jake mowed 216 sq.yd. in 3 hr, we can set up the proportion as 216/3 = Ricky's square yards mowed/2. To solve for Ricky's square yards mowed, we can cross multiply and divide: 216 * 2 = 3 * Ricky's square yards mowed. Therefore, Ricky's square yards mowed = 432 sq.yd. Next, we can find Ricky's time by setting up another proportion: 216/3 = 432/Ricky's time. Cross multiplying and dividing gives us Ricky's time = 6 hr.