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ZanzabumX [31]
3 years ago
11

An artist is trying to choose 5 covers for children’s books. There are 10 different covers to choose from. How many ways can the

artist choose covers? (It’s a permutation and combination kind of problem)
Mathematics
1 answer:
Aleksandr [31]3 years ago
5 0

Answer:

252

Step-by-step explanation:

The order of the books isn't important, so we'll use combinations.

The number of ways to choose 5 books from 10 is:

₁₀C₅ = 10! / (5! (10 − 5)!)

₁₀C₅ = 10! / (5! 5!)

₁₀C₅ = 10×9×8×7×6 / (5×4×3×2×1)

₁₀C₅ = 252

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If f(x) = - 8x +2 then f^-1(x) =
mrs_skeptik [129]

Answer:

f^-1(x)  = -1/8x +1/4

Step-by-step explanation:

To find the inverse of a function

Exchange x and y and then solve for y

y =-8x+2

Exchange x and y

x = -8y+2

Now solve for  y

Subtract 2 from each side

x-2 = -8y+2-2

x-2 = -8y

Divide by -8

(x-2)/-8 = -8y/-8

Distribute

-1/8x +1/4 = y

f^-1(x) = -1/8x +1/4

3 0
3 years ago
Simplify:<br><br> 3-2<br> what is this awnser
sweet [91]

Answer:

It is ................................................................. 1

Step-by-step explanation:

7 0
3 years ago
15% of the seats on an airplane are first class if there are 24 class seats how many seats are on the plane ​
Andrej [43]

Answer:

160

Step-by-step explanation:

there are 24 first class seats. 15% of the total number is 24. that would mean 5% of the total number is 8. 20 times 8 is 160.

6 0
2 years ago
6. Evaluate if y = 2.<br><br> -3y2 – y + 7
Greeley [361]

Answer:

the answer is -7

hope it helps you ❤

Step-by-step explanation:

-3×2×2-2+7= -7

8 0
2 years ago
The class needed to collect 20.5 pounds of cans for recycling over the next 5 months. the students plan to collect 3.75 pounds e
Anestetic [448]
To solve this problem, start by finding how many cans will be collected in 5 months. To do this, take the amount of cans collected each month and multiply it by the number of months. Set these values up in an equation.
This leaves you with:
3.75(5) = x

Multiply the values to get 18.75 pounds of cans.
So this fills the first blank.

For the second blank, you must subtract the number collected from the number that was the goal for the class.
This results in the expression:
20.5 - 18.75

Subtract the values to fill the second blank with 1.75 pounds.

Since they didn’t meet their goal, the last blank would be “less.”

I hope this helps! :)
8 0
2 years ago
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