Estimate the answer by rounding as indicated.Estimate the product by rounding each factor to the nearest ten.88 × 20
A. 1600
B. 7200
C. 2700
D. 1800
Answer: D
Mathematics
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Multiply by a fraction equivalent to 1 to build up the fraction to one with the denominator shown.
= 
A. 
B. 
C. 
D. 
Mathematics
Find the radius or measure of the central angle as indicated. Round your answer to two decimal places when necessary.Find the radian measure of a central angle in a circle of radius 19 ft of a sector of area 29 ft2.
A. 0.16 radians B. 10,469 radians C. 5234.5 radians D. 0.08 radians
Mathematics
Solve using the quadratic formula. Round any answers to two decimal places.
x2 - 2
x = 3
A. {-0.82, 14.67} B. {0.21, -14.67} C. {0.82, -14.67} D. {-0.21, 14.67}
Mathematics
If possible, find the sum of the infinite geometric series.
?
?
A. 240 B. 120 C. 480 D. 60 E. not possible
Mathematics