Solve the problem.A ladder x feet long leans against a house and makes an angle ? with the horizontal. The base of the ladder is 5 feet from the house. Then 
Use a reciprocal identity to rewrite this formula.
A. 
B. 5 sin ?
C. 
D. 5 sec ?
Answer: D
Mathematics
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Determine by what factor the numbers differ. In other words, determine how many times larger the first number is than the second.1.2 × 10-5, 4.8 × 10-15
A. 2.5 × 1010 B. 2.5 × 109 C. 2.5 × 101/3 D. 2.5 × 1020
Mathematics
Provide an appropriate response.Factor the special product: x2 + 20xy + 100y2
A. (x + 10y)2 B. (xy + 10)2 C. 20(x2 + xy = 5y2) D. (x + 10y)(x - 10y)
Mathematics
Solve the linear equation.x + 10.5 = 18.6
A. {8.1} B. {-8.1} C. {-29.1} D. {29.1}
Mathematics
Simplify.
- 
- 
- 
A. 1
B. 27
C. 
D. 
Mathematics