Evaluate using the order of operations.21 ÷ 7(3) + (-9)

A. 1
B. 40
C. 0
D. -8

Answer: C

Mathematics

You might also like to view...

Find the function value.Let f(x) = -1.7e-0.8x. Find f(-1.6), rounded to four decimal places.

A. -6.1143 B. 0.4727 C. -0.4727 D. 6.1143

View
Mathematics

Use a graphing calculator to graph the piecewise-defined function, using the window indicated.f(x) = ; window [-4, 4] by [-4, 4]

A.

B.

C.

D.

View
Mathematics

Write an equation in x that models the conditions. Do not solve the equation.85 is 43% of what number (x)?

A. 85 = 0.43 ÷ x B. 85 = 0.43x C. 85 ? 0.43 = x D. 85 = 43x

View
Mathematics

Change the following decimal number to hexadecimal form. 

A. 2DA
B. 294
C. 27D
D. 249
E.

View
Mathematics