Add or subtract vertically.Add 5x9 + 3x8 + 7x7 + 6 and 4x9 + 5x8 + 4x7 + 7.
A. 28x48 + 13
B. 9x18 + 8x16 + 11x14 + 13
C. 9x9 + 8x8 + 11x7 + 13
D. 11x9 + 11x8 + 12x7 + 7
Answer: C
Mathematics
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Solve the problem.A 15 in by 25 in rectangular garden is to have a gravel path of uniform width bordering it. How wide is the path if the total area covered by the garden and path is 551 in2?
A. 1 in B. 3.5 in C. 3 in D. 2 in
Mathematics
In a parallel circuit, R = 300 ê and C = 15 æF. Find Z when f = 60 Hz.
a. 152 /-60è ê b. 176 /-30.4è ê c. 348 /59.6è ê d. 176 /59.6è ê e. 348 /-59.6è ê
Mathematics
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(5
+ 11)(
- 11)
A. 5x - 121
B. 5x - 110
- 121
C. 5x
- 55
+ 11
- 121
D. 5x
- 110
- 121
Mathematics
Divide, if possible. If not possible, write "not defined."
A. 1 B. 0 C. Not defined D. 8
Mathematics