Solve the following quadratic equation using the quadratic formula. Find the exact answer. If there are no real solutions, so state.2m2 + 10m + 5 = 0
A. m = 
B. m = 
C. m = 
D. m = 
Answer: C
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Indicate whether the equation has no solution or is true for all real numbers. If neither is the case, solve for the variable.
- 14 = 
A. {x|x is a real number}
B. ?
C. {0}
D. 
Tell if the square root is rational, irrational, or not a real number. If the square root is rational, find the exact value; if the square root is irrational, write the approximate value rounded to two decimal places.
A. irrational; 
B. rational; 
C. rational; 
D. not a real number
Find the area of the circle. Use ? ? 3.14 and round to the nearest hundredth.diameter = 7 cm
A. 153.86 cm2 B. 38.47 cm2 C. 43.96 cm2 D. 21.98 cm2
Find the value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.
Find tan ?.
A. 
B. 
C. 
D. 