Solve.A 22-foot ladder is leaning against a house with the base of the ladder 6 feet from the house. How high up the house does the ladder reach? Round to the nearest tenth of a foot.
A. 22.8 ft
B. 21.9 ft
C. 16 ft
D. 21.2 ft
Answer: D
Mathematics
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Find the indicated part of the arithmetic sequence.Find the eighth term of the sequence that has a first term of 2 and a common difference of -3.
A. 26 B. -19 C. -22 D. 23
Mathematics
Simplify the expression. Assume that all variables represent nonnegative real numbers.-4
- 6
- 10
A. -820
B. -4
C. -126
D. 820
Mathematics
Solve the system of equations by elimination.3x - 5y = -126x + 8y = -24
A. (4, 0) B. (-4, 0) C. (0, -4) D. (0, 4)
Mathematics
Find the product and simplify.
? 
A. z
B. -z
C. - 
D. 1
Mathematics