Use the half-angle formulas to simplify the given expression.
A. 2 sin 14?
B. 2
sin 14?
C. 2
cos 14?
D. 4 sin 14?
Answer: D
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Write the decimal in words.8.36
A. eight and thirty-six hundredths B. eight and thirty-six millionths C. eight and thirty-six tenths D. eight and thirty-six thousandths
Answer the question.Consider the linear equation in three variables x - y + z = 3. Find a pair of linear equations that, when considered together with the given equation, will form a system having infinitely many solutions.
What will be an ideal response?
Use a calculator to evaluate the expression. Round the answer to three decimal places.(-0.55)-2
A. 0.303 B. -3.306 C. 3.306 D. -0.302
Provide an appropriate response.Find a polar equation for the parametric equations x = 5 cos2 ? , y = 5 cos ? sin ?
A. x2 + y2 = 25 cos2 ? B. r = 5 sin ? C. r = 5 cos ? D. y = x tan ?