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ivann1987 [24]
3 years ago
13

How to find the height of a trapezoid if the area is 60 square meters and bases of 8 and 12 meters. Please show your work!

Mathematics
1 answer:
love history [14]3 years ago
5 0
A=h(b+b) divided by 2-how to
A=60(8+12) divided by 2- with numbers
A=600 meters squared-answer 
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Is 4b²+40b+20 a perfect square​
Pavel [41]

Answer:

No.

Step-by-step explanation:

It is not because 20 is not a perfect square.

6 0
3 years ago
Brian needs to find the value of a number, a, so that when (x^2+3x) is added to the binomial (3x^2+ax), the sum simplifies to 4x
Julli [10]

Answer:

a = 9

Step-by-step explanation:

First we need to add  (x^2+3x)  to (3x^2+ax),

(x^2+3x)+(3x^2+ax)

Expand

= x^2+3x+3x^2+ax

Collect the like terms

= x^2+3x^2+3x+ax

= 4x^2 + 3x + ax

= 4x^2+(3+a)x

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Comparing the like terms on both sides

(3+a)x =12x

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a = 12 - 3

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Hence the value of a is 9

6 0
3 years ago
The fish population in a local stream is decreasing at a rate of 4% per year. The original population was 55,000 fish. What is t
Svet_ta [14]

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Step-by-step explanation:

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7 0
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A computer store is having a sale, with 15 % off all computer games. The game usually costs $220. How much does the computer gam
Harman [31]

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Step-by-step explanation:

220 times 15/100=165/5=33

hopefully this helps!:)

please give me brainliest because I have never gor it before.

7 0
3 years ago
125x80 solve the question
Lelechka [254]

Answer:

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5 0
3 years ago
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