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3 years ago

Find the value of x please helpWill give brainliest

Mathematics

1 answer:

Vikki [24]3 years ago

3 0

X =25
since the angles are equal to each other, and the same, you can make each angle equal to each other and solve for x:
5x+7=132
5x=125
X=25

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What are the real zeros of x^3+4x^2-9x-36

Katyanochek1 [597]

Answer:

$x = -4\\x = -3\\x = 3$

Step-by-step explanation:

To find the real zeros you must match the function to zero and factor the expression.

We have a polynomial of degree 3.

We try to group the terms to perform the factorization

$x ^ 3 + 4x ^ 2-9x-36 = 0\\\\x ^ 2(x + 4) - 9(x + 4) = 0$

Now we take (x + 4) as a common factor

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

If we have an expression of the form $(a ^ 2-b ^ 2)$ we know that this expression is equivalent to:

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In this case

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So:

$(x ^ 2 -9) = (x + 3)(x-3)$

Finally:

$x ^ 3 + 4x ^ 2-9x-36 = (x + 4)(x + 3)(x-3) = 0$

The solutions are:

$x = -4\\x = -3\\x = 3$

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3 years ago

HELPPPP PLASSSSSSSS

meriva

Answer:

$0.30 per ounce for the small popcorn

Step-by-step explanation:

Divide 4.5 (price) by 15 (oz) to get the unit price.

Have a nice day!!!

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2 years ago

I need help with 1,2,3 and 4 please

Romashka [77]

I cant see the question 1 sorry:(

2. x=71(base angle, isos. triangle)
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3 years ago

Find the value of x please helpWill give brainliest​

Find the value of x please helpWill give brainliest