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spayn [35]
3 years ago
15

81 + 2d > 90, d = 2 TRUE OR FALSE

Mathematics
1 answer:
telo118 [61]3 years ago
4 0

Answer:

False

Step-by-step explanation:

False because you plug in 2 for d and makes the equation 81 + 2x2 > 90 then it`s just simple math 2x2 is 4 making it 81 + 4 > 90 and the answer is 85 > 90 which is false

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Karina is 15. Her brother, Hector, is less than half her age. Write an inequality about Hector's age​
Ugo [173]

hector is 7 and a half

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4 0
3 years ago
The line segment joining A(6, 3) to B(–1, –4) is doubled in length by having half its length added to each end. Find the coordin
mr Goodwill [35]

Answer:

  • (9.5, 6.5) and (-4.5, -7.5)

Step-by-step explanation:

Let the extended points be A' and B' and add the point M as midpoint of AB

<u>Coordinates of M are:</u>

  • ((6 - 1)/2, (3-4)/2) = (2.5, -0.5)

Now point A is midpoint of A'M and point B is midpoint of MB'

<u>Finding the coordinates using midpoint formula:</u>

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  • B' = ((2*(-1) - 2.5), (2*(-4) - (-0.5)) = (-4.5, -7.5)

4 0
3 years ago
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kirill [66]
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6 0
3 years ago
Read 2 more answers
8. The product of 5, and 3 more than twice a number,<br> is 85. What is the number?
Zolol [24]

Answer:

Step-by-step explanation:

5(2x+3) = 85

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6 0
3 years ago
HELP!!! Please I need work shown I have no clue how to do this and I need a good answer please and thank you
zheka24 [161]
Factorize x²+7x+12 ===> (x+3)(x+4)

Factorize x²-3x-28 ===> (x-7)(x+4)

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Then the question could be written as follows:

 [(x+3)(x+4) / (x-7)(x+4) ] / 4(x+3) = [(x+3)(x+4) / (x-7)(x+4) ].[4(x+30]
After simplification you get 1 / 4(x-7)



7 0
3 years ago
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