Use the graph to find the standard equation of the circle.
A. x2 + y2 = 16
B. x2 + y2 = 64
C. x2 + y2 = 36
D. x2 + y2 = 8
Answer: B
Mathematics
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Use the distributive property to multiply the given expressions.(a + 2)7
A. 7a + 2 B. a + 14 C. 14a D. 7a + 14
Mathematics
Write the best-fit linear model for the data.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Find a linear function that approximates a student's score on Test B as a function of his or her score on Test A. 
A. y = -19.4 - 0.930x B. y = 19.4 + 0.930x C. y = -0.930 + 19.4x D. y = 0.930 - 19.4x
Mathematics
Find the reference angle for the given angle.600°
A. -60° B. 60° C. 45° D. 30°
Mathematics
Multiply. Write the answer in simplest form.
? - 
A. - 
B. 38
C. - 
D. 
Mathematics