Find the length of the curve.x = 2t, y = 
t 3/2, 0 ? t ? 21
A. 
B. 82
C. 39
D. 78
Answer: D
Mathematics
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Use a graph to find an approximate solution to the equation. Round to the nearest thousandth.2x = 25
A. 0.215 B. 12.500 C. 4.644 D. 2.526
Mathematics
Find the perfect square trinomial whose first two terms are given.x2 + 
x
A. x2 + 
x + 
B. x2 + 
x + 
C. x2 + 
x + 
D. x2 + 
x + 144
Mathematics
Write the whole number in expanded form.90,380
A. 9000 + 300 + 8 B. 90,000 + 3000 + 80 C. 90,000 + 300 + 80 D. 9000 + 30 + 8
Mathematics
Factor the polynomial completely.8a4 - 18b2
A. 2(2a2 + 3b)(2a2 - 3b) B. 2(2a2 - 3b)2 C. (4a2 + 6b)(2a2 - 3b) D. 2(2a2 + 3b)2
Mathematics