Find the given value.Find (f - g)(2) when f(x) = -2x2 - 7 and g(x) = x + 7.
A. -24
B. -20
C. 13
D. -10
Answer: A
Mathematics
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Express the number in scientific notation.0.000315
A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
Mathematics
Write the first four terms of the sequence and the indicated term.an = 
, 18th term
A. 
, 
, 1, 
, 
B. 
, 
, 
, 
, 
C. 0, 
, 
, 1, 
D. 
, 
, 1, 
, 
Mathematics
P = I2R. Find P when I = 400 mA and R = 300 ohms.
a. 24 W b. 48 W c. 120 W d. 14,400 W e. 120,000 W
Mathematics
Solve the variation problem.The gravitational attraction between two masses varies inversely as the square of the distance between them. If the force of attraction is 2.25 lb when the masses are 4 ft apart, what is the attraction when the masses are 6 ft apart?
A. 1 pound B. 3 pounds C. 4 pounds D. 2 pounds
Mathematics