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aniked [119]
4 years ago
8

What is the solution of this linear system? 3x+y=-2 y=-x+4 A. (–3, 7) B. (0, –2) C. (0, 4) D. (2, –8)

Mathematics
1 answer:
WARRIOR [948]4 years ago
7 0
It should be A. Find this by plugging the second equation into the first one. Then, try out each x-value from the answers to see which one makes sense
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0.056 divided by -0.004
riadik2000 [5.3K]

Answer: -14

Step-by-step explanation:

3 0
3 years ago
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State if the pair of triangles are similar. If so, state how you know they are similar and
RideAnS [48]
They can’t be similar. Similar triangles have congruent corresponding angles, and two angles are given on each. Neither of those correspond to another on the opposite triangle. Basically, there’s no way to have three congruent angles, so they aren’t similar.
5 0
3 years ago
3. If mZEFH = (5x + 1), mZHFG = 62°, and<br> mZEFG = (18x + 11), find each measure.
arsen [322]

Answer/Step-by-step explanation:

Given:

m<EFH = (5x + 1)°

m<HFG = 62°

m<EFG = (18x + 11)°

Required:

1. Value of x

2. m<EFH

3. m<EFG

SOLUTION:

1. Value of x

m<EFH + m<HFG = m<EFG (angle addition postulate)

(5x + 1) + 62 = (18x + 11)

Solve for x using this equation

5x + 1 + 62 = 18x + 11

5x + 63 = 18x + 11

Subtract 18x from both sides

5x + 63 - 18x = 18x + 11 - 18x

-13x + 63 = 11

Subtract 63 from both sides

-13x + 63 - 63 = 11 - 63

-13x = -52

Divide both sides by -13

-13x/-13 = -52/-13

x = 4

2. m<EFH = 5x + 1

Plug in the value of x

m<EFH = 5(4) + 1 = 20 + 1 = 21°

3. m<EFG = 18x + 11

m<EFG = 18(4) + 11 = 72 + 11 = 83°

8 0
4 years ago
Which angles are acute? <br><br> check all that apply.
Alex17521 [72]
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3 0
3 years ago
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What is the answer to this equation?<br> 1/2 (4i+8)=-2
Flauer [41]

Answer:

If your looking for I the answer is -3

Step-by-step explanation:

Simplify both sides of the equation

1/2(4i+8)=-2       - Distribute

(1/2) (4i) + (1/2) (8) = -2

The subtract 4 from both sides

Then divide both sides by 2

5 0
3 years ago
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