Use the reference angle to find the exact value of the expression. Do not use a calculator.csc 960°
A. - 
B. -
C. -
D. - 
Answer: D
Mathematics
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If the frequency is 750 Hz, what is the period?
a. 1.33 msec b. 7.5 msec c. 133 msec d. 1.33 æsec e. 750 æ
Mathematics
Translate the percent problem to a proportion using x for the unknown value. Do not solve the proportion.145% of what is 92?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Encode or decode the given message, as requested, numbering the letters of the alphabet 1 through 26 in their usual order.Use the coding matrix A = 
and its inverse A-1 = 
to decode the cryptogram 
.
A. BEAD B. DARE C. CARE D. CURB
Mathematics
If Z is the standard normal random variable, find Pr(Z? 0.5).
A. 0.7723 B. 0.2277 C. 0.6915 D. 0.3085 E. none of these
Mathematics