Solve.The sum of the squares of the digits of a positive two-digit number is 61, and the tens digit is 1 more than the units digit. Find the number.
A. 56
B. 54
C. 45
D. 65
Answer: D
Mathematics
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Find the intersection.x = -2 + 8t, y = 8 - 5t, z = 9 + 8t ; 3x + 8y - 7z = 2
A. (6, 3, 17)
B. (-10, 13, 1)
C. 
D. 
Mathematics
Find the Maclaurin series for the given function.e-8x
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students and B's to the next 23%. What is the bottom cutoff for a B grade? Round your answer to the nearest whole number.
A. 66 B. 76 C. 74 D. 71
Mathematics
Find the amplitude, period or phase shift.Find the phase shift of y = -4 - 3sin
.
A. 
to the right
B. 
to the left
C. 
to the right
D. 
to the left
Mathematics