Answer:
n = 7
n = -3
Step-by-step explanation:
4n+6 = n²-15
4n = n² - 21
n² - 4n - 21 = 0
(n-7)(n+3) = 0
n = 7
n = -3
Answer: Thomas is 33 years old
Step-by-step explanation:
59-7=52
52÷2=26
26+7=33
So therefore Thomas is 33 years old
I think x=8
8/4 = 2
16/2 = 8
You would round up 58 to 60 and round down for 93 to 90 and round up to 1.5 so the answer is D.
Answer:
C. 70 cm
Step-by-step explanation:
Split all the shapes, so, the square would be:
4 × 10 = 40
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Each triangle has an area of 7.5:
7.5 × 4 = 30
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30 + 40 = 70
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Have a good day :)
