Estimate the sum as indicated. Then answer the question.Estimate the following sum by first rounding to the nearest ten. Does the estimate give you reason to doubt the stated sum?
A. Estimate: 12,620 ; yes
B. Estimate: 12,850 ; no
C. Estimate: 12,820 ; no
D. Estimate: 12,910 ; yes
Answer: A
Mathematics
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Use a calculator to find the trigonometric values. Express your answers in hundredths.tan 37°
A. -0.84 B. 0.75 C. 0.80 D. 0.60
Mathematics
Solve the equation in the interval [0°, 360°). Give solutions to the nearest tenth, if necessary.csc ? = 1 + cot ?
A. ? B. {270°} C. {90°, 270°} D. {90°}
Mathematics
Perform the indicated operation and, if possible, simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics
Determine whether the complex number is a solution of the equation.1 + 2i;x2 + 3x + 3 = 0
A. Yes B. No
Mathematics