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iogann1982 [59]
3 years ago
9

Need help with this math problem​

Mathematics
1 answer:
Lina20 [59]3 years ago
6 0

Answer:

x = 6

Step-by-step explanation:

Complementary angles = angles that add up to 90 degrees.

Therefore 8x - 30 + 5x + 42 = 90

13x + 12 = 90

Subtract 12 from both sides and then divide each side by 13.

x = 6

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N(20/100)(20/100)=20

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6 0
3 years ago
Read 2 more answers
The following system of equations is graphed below.
navik [9.2K]
One way is subsitute
I like solving

so

what you do is this
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<u>3y=-x-3 +</u>
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sub back


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aprox
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I think they wanted you to read the garph you should have attached and guess the answer
the closes one is
hmm, x=-3
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so then D is the answer

3 0
3 years ago
I need help answering this!!! I just need help on how to do it or fragments of an answer. If you give me the straight-up answer
Marizza181 [45]
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8 0
3 years ago
Solve each equation.
Marrrta [24]

(1)\\\\|2x-4| =10\\\\\implies 2x-4 = 10~~ \text{or}~~ 2x -4 = -10\\\\\implies x = \dfrac{14}2 = 7 ~~\text{or}~~ x = -\dfrac{6}2=-3\\\\\\(2)\\\\-5|-4x+4|-7 = -67\\\\\implies -5|-4x+4| = -67 +7 = -60\\\\\implies |-4(x-1)| = \dfrac{-60}{-5}=12\\\\\implies 4|x-1| = 12\\\\\implies |x-1| =\dfrac{12}4 = 3\\\\\implies x-1 = -3~~\text{or}~~ x-1=3\\\\\implies x = -2~~ \text{or}~~ x = 4

8 0
3 years ago
PLEASE ANSWER THIS AND IF YOU DO YOU GET <br> 1. FOLLOW<br> 2. BRAINLIEST
snow_lady [41]
First: 0
Second: 0
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Fourth: y=4x
7 0
3 years ago
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