The missing coefficient of n in n + 8 is 9 after adding like terms which is 2n and 7n.
<h3>What is an expression?</h3>
It is defined as the combination of constants and variables with mathematical operators.
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We have an expression:
= 2n + (7n + 8)
After adding like terms:
9n + 8
The coefficient of n in n + 8 is 9
Thus, the coefficient of n in n + 8 is 9 after adding like terms which is 2n and 7n.
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L=1.5w
P=l+w
40=2.5 w
W=16
L=1.5(16) =24
Length is 24
Width is 16
Answer:
The measure of angle A' is 125°
Step-by-step explanation:
we know that
Under reflection, lengths, areas and angles do not change but orientation does
therefore
If angle A is 125°
then
after the reflection
m∠A=m∠A'
therefore
The measure of angle A' is 125°
The best answer to go with is b