mima851
03.02.2021 •
Mathematics
Which expression is equivalent to 210x^2 - 63x
A.21x(10x-3)
B.21x(10x+3)
C.21(10x+3)
D.21(10x-3)
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Ответ:
c = 53 miles
Step-by-step explanation:
a^2 + b^2 = c^2
45^2 + 28^2 = c^2
2,025 + 784 = c^2
2809 = c^2
c = 53