Express the number in scientific notation.78,000,000
A. 7.8 × 10-8
B. 7.8 × 10-7
C. 7.8 × 108
D. 7.8 × 107
Answer: D
Mathematics
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Calculate.20 - 77
A. -97 B. -57 C. 57 D. 97
Mathematics
Find the sum of the series, if possible.8 + 2 + 
+ 
+ . . .
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Determine a polynomial that represents the area of the figure. Leave ? in the answer.
A. 16x2 + 24x + 9 B. 16?x2 + 24?x + 9? C. 16x2 + 9 D. 16?x2 + 9?
Mathematics
Provide an appropriate response.A student was asked to find ordered pairs that solve the system of equations x + 2y = 3 -2x - 4y = -6.The student claims that (1, 1) and (-1, 2) are the only solutions. Is the student correct?
A. Yes B. No
Mathematics