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1 year ago

What does the expression (8x)^2 represent?

Mathematics

1 answer:

melamori03 [73]1 year ago

5 0

Answer:

Step-by-step explanation:

(8x)² is the area of a square with a side length 8x,

because we want to find out how much space is inside a square that has two dimensions 8x length and 8x width.

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Solve for the value of: 14/5 =z/25

ryzh [129]

Answer:

Solve for

by simplifying both sides of the equation, then isolating the variable.

Step-by-step explanation:

Hope I helped

8 0

2 years ago

What are the solutions of the quadratic equation? 4x^2+9x-9=0

vagabundo [1.1K]

Answer:

$x=3/4$

$x=-3$

Step-by-step explanation:

we have

$4x^2+9x-9=0$

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$4x^2+9x-9=0$

$a=4\\b=9\\c=-9$

substitute in the formula

$x=\frac{-9(+/-)\sqrt{9^{2}-4(4)(-9)}} {2(4)}$

$x=\frac{-9(+/-)\sqrt{225}} {8}$

$x=\frac{-9(+/-)15} {8}$

$x=\frac{-9+15} {8}=3/4$

$x=\frac{-9-15} {8}=-3$

5 0

2 years ago

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Describe the error in the work shown below.

Katena32 [7]

Answer:

the bottom equation should be 18+30=3(6+10)

Step-by-step explanation:

6(3+10) = 18+60 which equals 78

78 does not equal 18

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2 years ago

What does Juliet do after<br> worrying about whether the<br> potion will work?

galina1969 [7]

Answer:

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3 years ago

Solve for a.<br> 7a + 18 = 102<br> a =

Virty [35]

Answer:

Step-by-step explanation:

6 0

3 years ago

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