3 years ago

At a used book sale, 5 books cost $15. a. What is the cost per book?

Mathematics

1 answer:

Ghella [55]3 years ago

7 0

Answer:

$3 each

Step-by-step explanation:

15 divided by 5 = 3

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How many solutions does the equation have?<br><br> 4(z−5)+2=4z−18

ANTONII [103]

Distribute the 4:
4z - 20 + 2 = 4z - 18
Subtract 4z
-20 + 2 = -18
-18 = -18
This is true so that means there are infinite number of solutions... z could be anything!

7 0

4 years ago

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What is 8.22 divided by 6.0<br> ( in science )

kiruha [24]

Answer:

1.37

Step-by-step explanation:

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6 0

3 years ago

Based on the polynomial remainder theorem, what is the value of the function when x = 4?

ipn [44]

Answer:

124

Step-by-step explanation:

When x=4, substitute 4 into the function to give f(4).

$f(4) = (4)^4 - 2(4)^3 + 5(4)^2 -20(4) -4\\f(4) = 256 - 2(64) + 5(16) - 80 -4\\f(4) = 256 -128 + 80 - 80 -4\\f(4) = 128+80-80-4\\f(4) = 208-80-4\\f(4) = 128-4\\f(4) = 124$