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madam [21]
3 years ago
13

I will keep uploding more picks stay tonned

Mathematics
2 answers:
Alexus [3.1K]3 years ago
6 0

To find the area of a trapezoid it (top length + bottom length)/ 2 times height

Top length is 9

Bottom length is 19

(9+19)/2 x height = area

Area=168

14x height=168

Height =12

lina2011 [118]3 years ago
4 0

The height is 12 your welcome

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If square ABCD with side length of 7 units is reflected over the line y=x, what is length A'B'?
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Answer:

  7

Step-by-step explanation:

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5 0
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for f(x)=1/x-5 and g(x)=x^2+2 find the expression for g(x) and substitute the value of g(x) into the function in place of x to f
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adell [148]

Answer:

<u>a(n)=80*(9/10)^(n-1)</u>

Step-by-step explanation:

I think u r confused

this sequence is geometric not arithmetic

HOw we know that ??

when we get a common difference  <u>that must Be equal  </u>

d=72-80=-8  not equal to  d=64.8-72=-7.2

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but when we get the common ratio that also must <u>be equal </u>

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<em>I really hope this helps <3</em>

6 0
3 years ago
how do you solve -2.8k-4.31=-15.79 or 1.9m-3=-12.31 or 2.1a+1.4=-14.245 or 3.8n-4.8=-21.9 ?
Effectus [21]
Consider posting each question separately, please.

Given   <span>-2.8k-4.31=-15.79 :

1) Isolate the "k" term on the left by adding 4.31 to both sides of this equation.
2) Simplify the right side.
3) Divide both sides by -2.8 and you'll have the answer:  k = ?</span>
5 0
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Maslowich
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7 0
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