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Step2247 [10]
3 years ago
11

MATH QUESTION : WORTH 45 PTS

Mathematics
1 answer:
trapecia [35]3 years ago
5 0

y ≤ x − 5

y ≥ −x − 4


This is a check and see type of problem.


if x=5

y ≤ 5 − 5      y≤ 0    

y ≥ −5 − 4     y ≥-9

-9≤ y  ≤ 0

-2 works   so (5,-2) is a solution


if x= -5

y ≤ -5 − 5      y≤ -10    

y ≥ 5 − 4     y ≥1

no solution

Choice B (5,-2)

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I didn’t study and it’s 2 am pls help
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Answer: 7. g = -50, 8. f= 340/6 9. 3 10 .125

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3 0
3 years ago
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Please help 7th grade math question? URGENT! awarding brainliest!
Ivenika [448]

correct Option is B i.e, 72x^2+288x^2-216x whose simplified form is: 360x^2-216x

Step-by-step explanation:

We need to solve the expression:

2[(6x)(6x)]+4[(12x - 9)(6x)]

Solving:

2[(6x)(6x)]+4[(12x - 9)(6x)]\\=2[36x^2]+4[(12x*6x)-(9*6x)]\\=72x^2+4[72x^2-54x]\\=72x^2+288x^2-216x\\=360x^2-216x

So, correct Option is B i.e, 72x^2+288x^2-216x whose simplified form is: 360x^2-216x

Keywords: Surface area of the rectangular prism

Learn more about surface area of the rectangular prism at:

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4 0
3 years ago
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5x^2 - (2x - 3)^2 = 
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x^2 + 12x - 9 <===
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C ) 131 is the answer

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and the angle to the right would be 180-y= 180-117 = 163 (as linear angles)

so the angle at the vertex = 180 - (68 + 163) =49  (as angles in a triangle sum upto 180)

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