Use a graphing utility to graph the equation. Use the graph to approximate the values of x that satisfy the inequality.
?
Equation:
?
Inequality:
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
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Determine the specific solutions (if any) to the equation on the interval [0, 2?).cos2 ? + 2 cos ? + 1 = 0
A. ?
B. 
, 
C. 2?
D. 
, 
First, use front end rounding to estimate each answer. Then find the exact answer.Pat had $954 in her checking account. If she wrote checks for $147 and $335, how much remained in her account?
A. estimate: $900 - $100 - $300 = $500; exact: $472 B. estimate: $1000 - $100 - $300 = $600; exact: $472 C. estimate: $950 - $150 - $340 = $460; exact: $472 D. estimate: $950 - $150 - $300 = $500; exact: $472
Estimate the percentage. ? 50% of 2,210 ?
A. 1,100 B. 5,525 C. 552.5 D. 221 E. 11,050
Use the Pythagorean theorem to find the length of the third side of the right triangle. Leave any irrational answers in radical form.
A. 
B. 
C. 
D. 31