Solve the equation by factoring.x2 = x + 72
A. {8, 9}
B. {1, 72}
C. {-8, 9}
D. {-8, -9}
Answer: C
Mathematics
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Solve.There are 1.5 milligrams of iron in a 3.5 ounce serving of pork. How much iron is in 4 ounces of pork? Round your answer to one decimal place.
A. 1.3 mg B. 2.7 mg C. 2.3 mg D. 1.7 mg
Mathematics
Add in the indicated base.4357 + 317
A. 5667 B. 5367 C. 4067 D. 4667
Mathematics
Without graphing, find the vertex.f(x) = -(x + 4)2 - 3
A. (-4, -3) B. (4, -3) C. (4, 3) D. (-4, 3)
Mathematics
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth. Variables represent any real number.
A. 81x4 B. 81x C. 9x12 D. 3x4
Mathematics