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Alex_Xolod [135]
3 years ago
11

Solve 4r2 – 7 = 29. a. +-6 b. +-3 c. +-4 d. +-5

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
4 0
4r^2-7=29
+7 both sides
4r^2=36
÷4 both sides
r^2=9
square root both sides
r=+/-3 B
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