Find the exact value of the integral using formulas from geometry.
dx
A. 16
B. 8
C. 9
D. 18
Answer: B
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Find the value of each square root by use of a calculator. Each number is approximate.
A. 7.8 B. 7.80 C. 3710 D. 24.7
Solve the problem.R and R' are similar rectangles. Suppose that the width of R is a and the width of R' is 4a. If the area of R is 50 sq. in., what is the area of R' ?
A. 800 sq. in. B. 200a sq. in. C. 400 sq. in. D. 200 sq. in. E. none of these
Solve the equation for solutions over the interval [0, 2?). Write solutions as exact values or to four decimal places, as appropriate.sin 
+ cos 
= 
A. 
B. {?}
C. 
D. {0 , ?}
Write a linear equation in three variables that is satisfied by the given ordered triples.(0, 0, 5), (0, 1, 4), (1, 0, 4)
A. x + y + z = 4 B. x + y + z = 5 C. x - y - z = 5 D. 2x + y + 2z = 5