The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
What temperature was recorded at 4 p.m.?
A. 78 ° F
B. 74 ° F
C. 76 ° F
D. 77 ° F
Answer: C
Mathematics
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Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.u(1) = 2, u '(1) = -6, v(1) = 6, v '(1) = -3.
(3v - u) at x = 1
A. -3 B. 20 C. 16 D. -15
Mathematics
Solve the problem.How many 7-symbol codes can be formed using 4 different symbols? Repeated symbols are allowed.
A. 840 B. 16,384 C. 35 D. 210
Mathematics
Solve.2x2 + 3y2 = 32x2 + 2y2 = 4
A. (-
, i), (
, i)
B. (-1, -i), (1, -i), (-
, i), (
, i)
C. (-
, -i), (
, i)
D. (-
, -i), (-
, i), (
, -i), (
, i)
Mathematics
Change to a percent.
A. 46% B. 46,000% C. 4600% D. 460%
Mathematics