Write an expression involving subtraction and simplify.the difference of -27 and -7.
A. -20
B. -34
C. 20
D. 34
Answer: A
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Answer the question.What does the digit 2 mean in the number 247,189?
A. 2 thousands B. 2 hundreds C. 2 ten thousands D. 2 hundred thousands
Use elimination to solve each system of equations, if possible. Identify the system as consistent or inconsistent. If the system is consistent, state whether the equations are dependent or independent. -4x + 4y = 7-16x + 16y = 28
A. infinitely many solutions and dependent B. inconsistent C. (1, 1) D. (0, 0)
Solve the problem.How long will it take for prices in the economy to double at a 9% annual inflation rate? (Round to the nearest year.)
A. 23 yr B. 13 yr C. 7 yr D. 8 yr
Use the distance formula and the Pythagorean theorem to determine whether the set of points could be vertices of a right triangle.(-9, 10), (2, -1), (4, 1)
A. Yes B. No