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konstantin123 [22]
3 years ago
7

The expression below is the factorization of what trinomial-1(x+5)(x+6)

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0

Answer:

-x^2 - 11x -30

Step-by-step explanation:

Solve using foiling. Ignore the -1 to begin with and just look at the part in parenthesis. Do x from the first parenthesis times the stuff in the second parenthesis.

ie: x(x) and x(6)

ie: x^2 + 6x

Then do the 5 times the things in the second parenthesis.

ie: 5(x) and 5(6)

ie: 5x + 30

Then add what you got from multiplying the first value to what you got from multiplying the second.

ie: x^2 + 11x + 30

This is a trinomial because it has three different variables. Now change all the signs to negative because of the -1 out front.

ie: -x^2 - 11x -30

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3 years ago
Solve using elimination<br><br> -3-X=0<br> -3y=-3-2x
ryzh [129]
<h2>The solution is (x, y) = (-3, -1)</h2>

<em><u>Solution:</u></em>

<em><u>Given, system of equations are:</u></em>

-3 - x = 0 --------- eqn 1

-3y = -3 - 2x -------- eqn 2

From eqn 1,

- 3 - x = 0

<h3>x = -3</h3>

<em><u>Substitute x = -3 in eqn 2</u></em>

-3y = - 3 - 2(-3)

-3y = -3 + 6

-3y = 3

<h3>y = -1</h3>

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3 years ago
In trapezoid WXYZ, identify WX. PLEASE HELP!!!
matrenka [14]

Answer:

The length of WX is 31 units.(third option)

Step-by-step explanation:

Given that In trapezoid WXYZ, WX║ZY and S and T are the mid points of the sides WZ and XY. We have to find the length of WX.

By trapezoid mid-segment Property,

A mid-segment of a trapezoid join the midpoints of the two non-parallel sides of trapezoid. The length of the mid-segment is the average of the lengths of the two bases and is parallel to the bases of the trapezoid.

∴ ST=\frac{WX+ZY}{2}

⇒ 48=\frac{WX+65}{2}

⇒ 96=WX+65

⇒ WX=96-65=31

The length of WX is 31 units.(third option)

3 0
3 years ago
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