Find the reference angle for the given angle.102°
A. 78°
B. 88°
C. 22°
D. 12°
Answer: A
Mathematics
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Solve the problem.The resistance R produced by wiring resistors of R1 and R2 ohms in parallel can be calculated from the formula 
If R1 and R2 are measured to be 9 ohms and 7 ohms respectively and if these measurements are accurate to within 0.05 ohms, estimate the maximum possible error in computing R.
A. 0.015 B. 0.025 C. 0.030 D. 0.020
Mathematics
Find the zero of the linear function.h(t) = - 
t + 9
A. 2 B. -2 C. 63 D. -63
Mathematics
Solve the problem.The graph shows the relationship between the area A of a rectangle and the length L, if the width is fixed. Find the area if the length is 13 cm. 
A. 160 cm2 B. 208 cm2 C. 176 cm2 D. 240 cm2
Mathematics
Write the number as a product of prime numbers.287
A. 72 ? 41 B. 7 ? 41 C. 72 D. 7 ? 39
Mathematics