Find the value.63 + 80 ÷ 42 × 72

A. 63
B. 19,663
C. 308
D. 438

Answer: C

Mathematics

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Perform the indicated arithmetic.1 + 6

A. 7
B. 8
C. 7
D. 7

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Find (i) the amplitude, (ii) the period, and (iii) the phase shift.y = -  cos(2x - 2?)

A.

(i) (ii) ?(iii) ?

B.
(i) 2(ii) ?(iii) ?

C.
(i) 2(ii) 2?(iii) 2?

D.
(i) (ii) ?(iii) 

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Add or subtract, as indicated.0.84 - 0.48

A. -1.22 B. 0.4032 C. -1.32 D. 0.36

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State the solution set of the inequality in interval notation and sketch its graph.8x + 4 > 7x + 6

A. [2, ?)

B. (10, ?)

C. (-?, 2]

D. (2, ?)

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Mathematics