Solve the problem.A picture 11 inches by 17 inches is to be mounted on a piece of matboard so that there is an even amount of mat all around the picture. How wide will the border be if the area of the picture and border is 315 square inches?
A. 4.5 in.
B. 2 in.
C. 3 in.
D. 4 in.
Answer: B
Mathematics
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Find the center and radius of the sphere.x2 + y2 + z2 - 10x - 8y + 10z = -2
A. C(5, 4, 5), a = 8 B. C(5, 4, -5), a = 8 C. C(5, 4, -5), a = 64 D. C(-5, -4, 5), a = 8
Mathematics
Solve the problem.Subtract (-20a4 + 16a2) from (7a4 - 3a2).
A. -13a4 + 13a2 B. 27a4 - 19a2 C. 8a6 D. 27a4 + 13a2
Mathematics
Express as a single logarithm.3 loga (2x + 1) - 2 loga (2x - 1) + 2
A. loga (2x + 1) + 2
B. loga (2x + 3)
C. loga 2(x + 1)
D. loga 
Mathematics
Solve the given equation. 2 cos² ? - cos? - 1 = 0
What will be an ideal response?
Mathematics