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3 years ago

What is 7(1 - 8n)???

Mathematics

2 answers:

FromTheMoon [43]3 years ago

6 0

Answer:

7-56n

Step-by-step explanation:

By using the distributive property you multiply the 7 to the 1 which equals 7. Then you distribute the 7 to the -8n which gives you -56n becaus emultiplying a negative and a possitive gives you a negative.

WARRIOR [948]3 years ago

3 0

Answer:

7-56n

Step-by-step explanation:

7(1-8n) distribute 7 into each number : 7x1, 7x8n answer; 7-56n

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Ac method for x^2+20x-8=0

yanalaym [24]

<h2>Explanation:</h2><h2></h2>

By using quadratic formula:

$x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$\quad a=1,\:b=20,\:c=-8$

$x_{1,\:2}=\frac{-20\pm \sqrt{20^2-4\cdot \:1\left(-8\right)}}{2\cdot \:1}$

$x=\frac{-20+\sqrt{20^2-4\cdot \:1\left(-8\right)}}{2\cdot \:1}:\quad 2\left(3\sqrt{3}-5\right)$

$x=\frac{-20-\sqrt{20^2-4\cdot \:1\left(-8\right)}}{2\cdot \:1}:\quad -2\left(5+3\sqrt{3}\right)$

So the solutions are:

$\boxed{x=2\left(3\sqrt{3}-5\right),\:x=-2\left(5+3\sqrt{3}\right)}$

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4 years ago

Find the surface area of the right rectangular prism shown below.

mash [69]

Answer:

your answer would be A= 67

Step-by-step explanation:

all you have to do is multpily L= 5 W=4 and H=1.5

i hope this helps

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3 years ago

What is 953 to rounded to the nearest ten

GrogVix [38]

953 is rounded to 950 because 3 is less than 5

4 0

4 years ago

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Use the distributive property to expand the following expression (9m-6)7

Nikitich [7]

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$7(9m - 6) = 63m - 42$

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3 years ago

Look at the diagram. If RS= 8y + 4, ST = 4y + 8, and RT = 36, find the value of y.

vladimir2022 [97]

<span>RS= 8y + 4, ST = 4y + 8, and RT = 36

RS + ST = RT
</span>8y + 4 + 4y + 8 = 36
12y + 12 = 36
12y = 24
y = 2

answer
y = 2 (first choice)

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4 years ago

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