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Greeley [361]
3 years ago
15

Can someone help me with several questions?

Mathematics
1 answer:
juin [17]3 years ago
8 0

Answer:

1.) -1

2.) 5.6

3.) -1

4.) 12

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Which expression is equivalent to x8 - 256?
lyudmila [28]
We have that
case <span>A)
(x – 2)(x + 2)(x</span>²<span> + 8)(x4 + 8) 
(x</span>²-4)(x² + 8)(x4 + 8)

case <span>B)
(x – 2)(x – 2)(x</span>²<span> + 4)(x4 + 16) 
(x-2)</span>²(x² + 4)(x4 + 16) 

case <span>C)
(x – 2)(x + 2)(x</span>²<span> + 4)(x4 + 16) 
(x</span>²-4)(x² + 4)(x4 + 16)
(x4 -16)(x4 + 16)
(x8-256)

case <span>D)
(x + 2)(x + 2)(x</span>²<span> + 4)(x4 + 16)
(x+2)</span>²(x² + 4)(x4 + 16)

the answer is
the option 
<span>C) (x – 2)(x + 2)(x2 + 4)(x4 + 16) </span>
8 0
4 years ago
A painter leans a 20 ft ladder against a building. The base of the ladder is 8 ft from the building. To the nearest foot, how hi
Shalnov [3]

Answer:

Step-by-step explanation:

This is asking what is A

Formula A squared + B squared = C squared

A=x

B=8

C=20

X^2+ 8^2=20^2

8 squared is 64

20 squared is 400

400-64 is 336

X*X=336 find the square root of 336 =18.3

CHECK

18.3*18.3+ 8*8=398.89 which is super close to 400

5 0
3 years ago
What is the following quotient?<br> 9+ V2<br> 4-7
Vilka [71]
U clicked the answer already
6 0
3 years ago
Can someone explain the differences between a rational and irrational number, and a interger
vodomira [7]
Interfere are numbers that can be neagative
Or positive. Rational numbers are numbers that can be put into fractions. Irrational numbers cannot be put into a fraction
6 0
4 years ago
20 points!!!!
leva [86]

Answer:

6/7

Step-by-step explanation:

Product of slope of perpendicular line = -1

Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\

          = \frac{7-0}{3-9}\\\\=\frac{7}{-6}\\\\=\frac{-7}{6}

Slope of the  perpendicular line = -1/m = -1 ÷ \frac{-7}{6}

                                                     = -1 * \frac{-6}{7} = \frac{6}{7}

6 0
3 years ago
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