Ask question

Ask question

All categories

gizmo_the_mogwai [7]

3 years ago

10

-4x – 2(5x - 10) = 174

1 answer:

TEA [102]3 years ago

8 0

X = -11 is the answer! Hope this helped

You might be interested in

Law of cosine. Please help

Anna35 [415]

Answer:

B) 41.7

Step-by-step explanation:

Let $a=25$ , $b=32$ , and $c=37$ . Use the Law of Cosines equation to find angle A=x which is directly across from side $a$ :

$\displaystyle \cos(A)=\frac{b^2+c^2-a^2}{2bc}\\ \\\cos(A)=\frac{32^2+37^2-25^2}{2(32)(37)}\\ \\\cos(A)=\frac{1024+1369-625}{2(1184)}\\\\\cos(A)=\frac{2393-625}{2368}\\ \\\cos(A)=\frac{1768}{2368}\\\\A=\cos^{-1}\biggr(\frac{1768}{2368}\biggr)\\ \\A\approx41.7^\circ$

Therefore, the correct answer is option B, which means you were right!

5 0

2 years ago

What is -5 to the fourth power

inessss [21]

Answer: -20

Step-by-step explanation: multiply -5 and 4

7 0

3 years ago

Read 2 more answers

Which expression describes the sequence: 72, 69, 66, 63...? (1 point)

Strike441 [17]

Answer:

75 - 3n

Step-by-step explanation

<h3> </h3>

7 0

3 years ago

Read 2 more answers

Solve for x…………………………..

Georgia [21]

Answer:

15x + 15° = 3x + 9° + 78° (exterior angle is equal to the sum of the opposite interior angles)

15x - 3x = 9° + 78° - 15 °

12x = 72°

12x÷12 = 72°÷12

x = 6

6 0

3 years ago

4.5 - (2.5x - 12.5)<br><br> 1.)2.5x-8<br> 2.)2.5+17<br> 3.)-2.5+7<br> 4.)-2.5-8

Natali5045456 [20]

It would be 2

2.5+17

8 0

3 years ago

Read 2 more answers