Round the dollar amount to the nearest dime (tenth), but express the answer in dollars and cents.$8.659
A. $8.60
B. $8.70
C. none of these
D. $8.80
Answer: B
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Solve the problem.Rosie can crochet a 5 cm by 49 cm strip in 2 hours. If there is a 1199 cm2 area completed when she starts and she crochets for 5 hours, how much total area will Rosie have finished?
A. 2424 cm2 B. 1444 cm2 C. 612.5 cm2 D. 1811.5 cm2
Use the fundamental identities to simplify the expression.
+ sec ? cos ?
A. 1 B. csc2? C. tan2? D. sec2?
Solve the problem.Two angles are supplementary if the sum of their measures is 180°. If the measure of one angle is given by (
)° and the measure of its supplement is given by (
)°, find the measures of the two angles.
A. 40°, 140° B. 124°, 56° C. 80°, 100° D. 62°, 118°
An observer in a lighthouse a = 340 feet above sea level observes two ships directly offshore.
The angles of depression to the ships are 4º and 6.5º (see figure). How far apart are the ships? Round your answer to one decimal place.
?
?
A. 1878.1 ft B. 1879.1 ft C. 1880.1 ft D. 1881.1 ft E. 1882.1 ft