Which expression is a factor of 21x2 + 13x − 20?
1 answer:
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Answer:
294 in.²
Step-by-step explanation:
I believe this figure is a rectangular prism.
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<u>Explain:</u>
To find the surface area of a rectangular prism, use this formula:
or
A phrase I use to help remember this formula is:
LISA WILSON LOST HER WITCH HAT TWICE (2)
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<u>Solve:</u>
The length of this rectangular prism is 9 in.
This width is 10 in.
The height is 3 in.
Now, I will plug the numbers into the first formula.
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<u>Conclude:</u>
I, therefore, believe the area of this rectangular prism is 294 in.²
Answer:
Question 13: 90, Question 14: y = , Question 15: x =
, Question 16: y =
.
Step-by-step explanation: