Tell whether the statement is true or false.cos  = cos  cos  - sin  sin 

A. True
B. False


Answer: A

Mathematics

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Find the absolute value of the complex number.z = 3 + 10i

A. 13
B. 109
C.
D.

Mathematics

Find the missing value. Round money to the nearest cent, rate to the nearest tenth of a percent, and time to the nearest month.Principal: $6210Interest: $812.17Rate: Time: 11 months

A. 14.1% B. 14.3% C. 15.7% D. 13.1%

Mathematics

Solve. If necessary, round answers to the nearest hundredth.The following test scores were recorded for a student: 97, 89, 85, 85, 97, 99. Find the mean, median, and mode.

A.

mean: 92median: 93mode: 85 and 97

B.
mean: 93median: 92mode: 97

C.
mean: 93median: 93mode: 85

D.
mean: 92median: 85mode: 99

Mathematics

Convert the given interest rate to decimal form if it is given as a percentage, and to a percentage if it is given in decimal form.0.05% to decimal

A. 0.5 B. 5.0 C. 0.05 D. 0.0005

Mathematics