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sweet [91]
3 years ago
6

in the school library 52% of the books are paperback if there are 2650 books in library how many of them are not paperback to th

e nearest whole number
Mathematics
1 answer:
wlad13 [49]3 years ago
3 0

i will use proportions for this.

 x          52

------- = --------

2650    100

Cross multiply and u get 1378.

Hope it helps. :)

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Find the zeros of the quadratic function: y= 6(7x + 9)(8x - 3).
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Answer:

A) (-9/7,0), (3/8,0)

Step-by-step explanation:

Zeros of a quadratic function:

x for which y = 0.

In this question:

y = 6(7x + 9)(8x - 3)

It's 0 if one of the factors is 0. 6 is never 0, now about the other to:

7x + 9 = 0

7x = -9

x = -\frac{9}{7}

So (-9/7, 0) is a zero of the quadratic function.

The other is:

8x - 3 = 0

8x = 3

x = \frac{3}{8}

(3/8,0) is the other zero.

Thus, the correct answer is given by option A.

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(SAT Prep) In the given figure, a ∥ b. Find the value of z. A. 50° B. 90° C. 45° D. 75°
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