2 years ago

Please help! hurry, It's 8 pm and I'm tired :(

Mathematics

1 answer:

Murrr4er [49]2 years ago

3 0

Answer:

I’m pretty sure x=6

Step-by-step explanation:

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The angles in a triangle have<br><br> measures of 61°, (3z), (z-5)<br><br> What is the value of z?

vfiekz [6]

Answer:

z = 31

Step-by-step explanation:

A triangle adds up to 180 degrees

Therefore this equation is formed: 61 + 3z + z -5 = 180

Simplify:

4z = 124

z = 31

5 0

2 years ago

Someone plz help me giving brainliest!

Arada [10]

Answer:

the estimate is : 39 7/32

the answer is : 46 9/35

4 0

3 years ago

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:

$(a ^ 2-b ^ 2) = (a + b)(a-b)$

In this case

$a = x\\b = 3$

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:

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

6 0

3 years ago

8 times the sum of a and b

LenaWriter [7]

Answer:

Step-by-step explanation:

i did the quiz

4 0

3 years ago

Read 2 more answers

Use the Distributive property to write an expression equivalent 5 times ( 3+4 ).

algol13

You can set this up as 5(3+4)....then, distribute by multiplying the terms in parentheses by 5. This gives you 15+20, which equals 35.

8 0

3 years ago