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NARA [144]
3 years ago
8

NO ONE EVER HELPS ME , PLEASE HELP ME I NEED HELP!

Mathematics
1 answer:
Makovka662 [10]3 years ago
3 0

Answer:

A is the answer  

12 in

first substitute the variables

then 78=1/2h(5 + 8)

this makes it an equation

add similar terms which equals to

78=1/2xhx13

then divide both sides by 13

6=1/2xh

lastly divide both sides by 1/2

12=h

Step-by-step explanation:

proof

A=1/2x12(5 + 8) then

A=1/2x12x13  then

   A=6x13  then

       A= 78in^2

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Answer:

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Step-by-step explanation:

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3 years ago
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Which equation represents a line with a slope of 13 and a y-intercept of -1?
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3 years ago
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Hey there! :)

Answer:

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Step-by-step explanation:

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6 0
3 years ago
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