Add or subtract as indicated. Write the answer in simplest form.
+ 
A. 
B. 
C. 
D. 6y + 2
Answer: C
Mathematics
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Solve.The length L of a rafter on a building's roof is calculated using the formula L = 
. Suppose that H2, the maximum roof height, is 15 ft; H1, the minimum wall height, is 8.5 feet; and W, the width of the building, is 26 feet. Calculate the rafter length, not including allowance for overhang. (Round to the nearest tenth.)
A. 24.9 ft B. 710.2 ft C. 26.8 ft D. 718.3 ft
Mathematics
Factor the polynomial.15z2 + 14z - 8
A. (3z - 4)(5z + 2) B. (3z + 4)(5z - 2) C. (15z + 4)(z - 2) D. prime
Mathematics
Use an identity to find the value of the expression. Do not use a calculator.cos 46° sec 46°
A. cos2 46° B. 1 C. 46 D. 0
Mathematics
Match the equation to the graph.y2 = 7x
A. 
B. 
C. 
D. 
Mathematics