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Citrus2011 [14]
3 years ago
6

A textbook order was shipped in 3 identical boxes, each containing 8 pounds of books, and a fourth box containing 6 pounds of bo

oks. If 15 copies of the same textbook were in the boxes, which expression shows how to determine the weight of each textbook? (8 × 3 + 6) ÷ 15 8 × 3 + 6 ÷ 15 (8 × 3) + (6 ÷ 15) 8 × (3 + 6) ÷ 15
PLZZZ ANSWER ASAP
Mathematics
1 answer:
harkovskaia [24]3 years ago
3 0
It would be:

(8 x 3 + 6) divided by 15

because of PEMDAS.
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75 hours because 150 divided by two is 75
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Whats 3 3/4 divided by 1/2
sasho [114]
3 3/4 divided by 1/2 is 7 1/2. 
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<img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B1000%7D%20%2B%20%5Csqrt%5B3%5D%7B0.027%7D%20-%20%5Csqrt%5B3%5D%7B125%7D" id="
e-lub [12.9K]
Step 1: calculate the cube roots, convert the decimal into a fraction, and calculate the cube roots again

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3 0
3 years ago
Explain why the X coordinates of the points where the graphs of the equations y=2^-x and y=4^x+3 intersects
sveta [45]
Hello,

y=2^(-x)
y=2^(2x)+3

==>2^(2x)+3=1/2^x
==>2^(3x)+3*2^x-1=0 (1)
Let's assume u=2^x
(1)==>u^3+3*u-1=0

which as 3 roots
u=0.322185354626 or
u = -0.161092677313 + i1.754380959784 or
u = -0.161092677313 - i1.754380959784.

Let's take the real solution

 0.322185354626=2^x
==>x=ln(0.322185354626) / ln(2)
 x=-1,6340371790199...

an other way is
f(x)=2^(3x)+3*2^x-1
f(-2)=1/64+3/4-1=-15/64 <0
f(-1)=1/8+1-1=1/8>0
==> there is a solution betheen -2<x<-1










6 0
3 years ago
Of the following statements, which one or ones describe actions helpful to your credit score?
kiruha [24]
The answer is C.) I and III
4 0
3 years ago
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