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3 years ago

12

Subtract −b+3 from −11b−4 . What is the answer?

2 answers:

adelina 88 [10]3 years ago

8 0

That is the same as $(-11b-4)-(-b+3)[/tex}. Negatives are gross, so let's distribute it. Remember, that negative can be turned into a positive by changing the sign on every term in the parentheses. It's called distributing the negative. So we can change it to [tex](-11b-4)+(b-3)$ . Now it's just basic addition.

$-11b-4+b-3 = -10b-7$

So your final answer is:

$-10b-7$

monitta3 years ago

5 0

-11b-4 - -b+3 = -10b-7

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Please help im very stuck

liraira [26]

Answer:

The answer is D!!!

Step-by-step explanation:

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Hope this helps!

6 0

3 years ago

I answered it but I just need someone to answer just to make sure mine are right

Artemon [7]

<h2>The missing measures of the angles are:</h2>

$m\angle 1= 60^{\circ}\\\\m\angle 2= 39^{\circ}\\\\m\angle 3= 21^{\circ}\\\\m\angle 4 = 39^{\circ}\\\\m\angle 5 = 21^{\circ}$

<u>Given</u>:

$m\angle Z = 138^{\circ}$

<em><u>Note the following:</u></em>

An equilateral triangle has all its three angles equal to each other. Each angle = $60^{\circ}$ .

This implies that, since $\triangle WXY$ is equilateral, therefore, $m\angle Y = m\angle XWY = m\angle XYW = 60^{\circ}$

Base angles of an isosceles triangle are congruent to each other.

This implies that, since $\triangle WZY$ is isosceles, therefore, $m\angle 3 = \angle 5$

Applying the above stated, let's find the measure of each angle:

Find $m\angle 1$

$m\angle 1 = 60^{\circ}$ (an angle in an equilateral triangle equals 60 degrees)

Find $m\angle 2$

$m\angle 2 = 60 - m \angle 3$

$m\angle 2 = 60 -\frac{1}{2}(180 - 138)$ $(Note: \frac{1}{2}(180 - 138) = 1 $ base $ angle $ of $ \triangle WZY)$

$m\angle 2 = 60 -21\\\\m\angle 2 = 39^{\circ}$

Find $m\angle 3$ and $m\angle 5$ (base angles of isosceles triangle WZY)

$m\angle 3 = \frac{1}{2}(180 - 138) (1 $ base $ angle $ of $ \triangle WZY)$

$m\angle 3 = \frac{1}{2}(42) \\\\m\angle3 = 21^{\circ}$

$m\angle3 = m\angle 5$ (base angles of isosceles triangle are congruent)

Therefore,

$m\angle5 = 21^{\circ}$

Find $m\angle 4$

$m\angle 4 = 60 - m\angle 5$

Substitute

$m\angle 4 = 60 - 21\\\\m\angle 4 = 39^{\circ}$

The missing measures of the angles are:

$m\angle 1= 60^{\circ}\\\\ m\angle 2= 39^{\circ}\\\\m\angle 3= 21^{\circ}\\\\m\angle 4 = 39^{\circ}\\\\m\angle 5 = 21^{\circ}$

Learn more here:

brainly.com/question/2944195

5 0

2 years ago

What is the result of the operation

Anna35 [415]

Answer:

D.

Step-by-step explanation:

-2*-3=6 -2*5=-10. -2*1=-2

-2*8=-16. -2*-2=4. -2*3=-6

-2*2=-4. -2*1=-2. -2*-4=8

6 0

3 years ago

9 — 3x = у<br> 3х – у = -2

Phoenix [80]

Answer:

This could be wrong, but i still wanted to help you.

Step-by-step explanation:

9-3x=y

+9 +9

3x=y

÷3 ÷3

x=y/3

Im sorry if this is wrong

6 0

3 years ago

Anyoneeee??????????

leva [86]

Your answer will be D

As y = -(x+2)(x-1)

Thus the external negative sign will flip the positive 2 into a negative & negative 1 into a positive; Resulting, y=(x-2)(x+1)

7 0

3 years ago

Read 2 more answers