Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Write the number as a product of primes.28
A. 2 ? 7 ? 7 B. 2 ? 7 C. 2 ? 2 D. 2 ? 2 ? 7
Mathematics
Use the dot product to find 
.v = 
A. 2i
B. -4
C. 10
D. 
Mathematics
Solve triangle ABC. Round side lengths and angle measures to the nearest tenth when necessary.a = 8.30, b = 11.1, C = 122.8°
A. c ? 17.1, A ? 24.1°, B ? 33.1° B. c ? 20, A ? 26.1°, B ? 31.1° C. No triangle exists. D. c ? 22.9, A ? 22.1°, B ? 35.1°
Mathematics
Use a calculator to find the sum. Round the result to two decimal places.
+ 
A. 0.98 B. 0.54 C. 0.16 D. -0.75
Mathematics