3 years ago

Which equation is equivalent to x2+16x+4=0

Mathematics

1 answer:

Daniel [21]3 years ago

8 0

Answer:

(x+8)^2 - 60 = 0

Step-by-step explanation:

x^2 + 16x + 4 = 0

x^2 + 16x + 64 - 60 = 0

(x + 8)^2 - 60 = 0

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The sum of the measures of the interior angles of a polygon is 2880°. How many sides does the polygon have?

harina [27]

Let

S------> The sum of the measures of the interior angles of a polygon

n-------> number of sides of a polygon

we know that

The formula to find the sum of the measures of the interior angles of a polygon is equal to

$S=(n-2)*180$ °

in this problem

$S=2880$ °

Solve for n

$S=(n-2)*180\\ \\ n=\frac{S}{180}+2\\ \\ n=\frac{2880}{180}+2\\ \\ n=16+2\\ \\ n=18\ sides$

therefore

the answer is

$18\ sides$

5 0

3 years ago

Read 2 more answers

What two ratios are equivalent too 27/60

kati45 [8]

Answer:

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Step-by-step explanation:

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3 years ago

The sum of two numbers, x and y, is 12. The difference of x and two times y is 6. What are the values of x and y?

Aleksandr-060686 [28]

The answer is: x = 10, y = 2

Leave a thanks because your welcome :)

Work:

x + y = 12
(10) + (2)+ = 12
Correct

x - 2y = 6
(10) - 2(2) = 6
10 - 4 = 6
Correct

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3 years ago

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Eva8 [605]

Answer:

55 ft... The ladder must extend 55ft

Step-by-step explanation:

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ki77a [65]

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Step-by-step explanation:

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