Solve the problem.The surface area S of a sphere with radius r is given by the formula 
If a sphere has surface area 
square inches, what is its radius?
A. 7? in.
B. 7 in.
C. 49 in.
D. 14 in.
Answer: B
Mathematics
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Find the perimeter of the shape made up of rectangles and squares.
A. not enough information given B. 57 km C. 78 km D. 39 km
Mathematics
Find an equation for the hyperbola described. Graph the equation.Center at (0, 0); vertex at (0, 8); focus at (0, 
)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Solve.A rectangular plot has area 126 yd2 with a perimeter of 46 yd. What is the length of the longest side?
A. 16 yd B. 14 yd C. 12 yd D. 13 yd
Mathematics
Determine whether the sequence is geometric.an = 18n - 8
A. Geometric B. Not geometric
Mathematics