Find the measure of each angle in the problem.Supplementary angles with measures 2x + 7 and 3x - 2 degrees
A. 77° and 103°
B. 57° and 123°
C. 87° and 93°
D. 67° and 113°
Answer: A
Mathematics
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Graph the ellipse. Label the intercepts.50x2 + y2 = 100
A. (-
, 0), (
, 0), (0, -
), (0, 
)
B. (-2, 0), (2, 0), (0, -10), (0, 10)
C. (-2, 0), (2, 0), (0, -
), (0, 
)
D. (-
, 0), (
, 0), (0, -10), (0, 10)
Mathematics
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500
Mathematics
Provide an appropriate response.The probability distribution for the random variable X is: 
What is the expected value of X?
A. 0.62 B. 0.26 C. 0.22 D. 0.50
Mathematics
Subtract.-12 - 20
A. 32 B. -8 C. 8 D. -32
Mathematics