Which of the following is equivalent to: Twice a number increased by 7 is 42?
A. ?2n + 7.
B. ?2n + 7 = 42.
C. ?2(n + 7) = 42.
D. ?Twice a number is equal to 35.
E. ?2n = 28
Answer: B
Mathematics
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Plot the ordered pairs on the rectangular coordinate system provided.A(-4, -5), B(-3, 5)
What will be an ideal response?
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Solve. Use a calculator to approximate the irrational solutions to three places.x2 + 9 = 19
A. -4.641 B. ±5.292 C. -4.641, -13.359 D. ±3.162
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+ 
= 1
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Mathematics