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3 years ago

This is really getting on my nerve

Mathematics

1 answer:

Lana71 [14]3 years ago

3 0

If to find the area of a triangle is to multiply 1/2 times the measure of the base times the height we need to make that equals to 18 since it’s already given. So 18=1/2 * ((h+1)*6)
Now we distribute
18 = 1/2 (6h + 6)
18 = 3h + 3 (Now we subtract 3 from both sides)
15 = 3h (now we divide both sides by 3)
5 = h
h = 5

-Betinho

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Sophia pays a

Katen [24]

Answer:

19.99 + 0.99x ; 21.97

Step-by-step explanation:

19.99 + 0.99x

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19.99 + 1.98

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3 years ago

Please explain this step by step. 5+4(n+9)=-3

Blababa [14]

Answer:

n = -11

Step-by-step explanation:

5 + 4(n + 9) = -3,

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4n = -44,

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3 years ago

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lisov135 [29]

Answer:

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Step-by-step explanation:

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3 years ago

Prove that A is in the subset B if P(A) is in the subset P(B)

natima [27]

Show that if p(a) ⊂ p(b) then a ⊂ b.

I will assume p() means power set. 

proof: let x∈a, then {x} ∈ p(a) and so by hypothesis {x} ∈ p(b). However {x} could not be in p(b) unless x∈b. This shows that each element of a is an element of b and hence a ⊂ b.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

5 0

3 years ago

Use the distributive property to simplify the expression 6(s-9

Natalija [7]

You have to multiply the 6 by both s and -9

So you will get 6s - 54 which is the answer

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3 years ago