The slant height of a regular square pyramid is 23 ft, and the length of a side of its base is 9 ft. What is the surface area of the pyramid?
a. 621 ft²
b. 495 ft²
c. 943 ft²
d. 909 ft²
e. 1587 ft²
b. 495 ft²
Mathematics
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Mathematics
Write an equation that expresses the relationship. Use k as the constant of variation.x varies jointly as b and the sum of p and t.
A. x = 
B. x = k(bp + t)
C. x = kb + p + t
D. x = kb(p + t)
Mathematics
Solve the problem.How many ways can a president, vice-president, and secretary be chosen from a club with 10 members? Assume that no member can hold more than one office.
A. 30 B. 6 C. 720 D. 120
Mathematics
Write the number in standard form.The treasurer's records showed a debt of 
.
A. 10,000 B. 100 C. 10 D. 1000
Mathematics