Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.e x + 6 = 2
A. {-5.08}
B. {2.08}
C. {-5.31}
D. {-3.92}
Answer: C
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Use a calculator to find the acute angle between the planes to the nearest thousandth of a radian.4x - 7y + 10z = -4 and -2x - 7y + 9z = 5
A. 1.078 rad B. 0.493 rad C. 1.524 rad D. 0.152 rad
Solve the problem.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 30 questions correct. What was the percent of increase?
A. 80% B. 20% C. 16.7% D. 5%
Solve. Use ? ? 3.14 and round to the nearest hundredth.A water sprinkler sends water out in a circular pattern. The radius of watering is 8 feet. Determine how large an area is watered.
A. 12.56 ft2 B. 50.24 ft2 C. 200.96 ft2 D. 25.12 ft2
Find the magnitude and direction angle of the vector v. Round the direction angle to the nearest tenth of a degree when necessary.v = -2i + 5j
A. 
, 68.2°
B. 7, 291.8°
C. 29, 111.8°
D. 
, 111.8°