Determine which value(s), if any, must be excluded from the domain of the variable in the expression.

A. x = -7
B. x = 7
C. x = -7, x = -1
D. none


Answer: A

Mathematics

You might also like to view...

Write an equation in slope-intercept form of a line satisfying the set of conditions.Through (0, -6) and parallel to 

A. y = - x - 6
B. y = 9x + 6
C. y = -9x - 6
D. y = 9x - 6

Mathematics

Use inductive reasoning to predict the next equation.(4 × 1) x (2 × 1) = 8(4 × 10) x (2 × 2) = 160(4 × 100) x (2 × 3) = 2400

A. (4 × 1000) x (2 × 4) = 36,000 B. (4 × 1000) x (2 × 4) = 3200 C. (4 × 1000) x (2 × 4) = 28,000 D. (4 × 1000) x (2 × 4) = 32,000

Mathematics

Solve the problem.Find the future value (to the nearest dollar) of the following inflation-adjusted retirement account. Deposits are made at the end of each year.

A. $250,724 B. $264,653 C. $232,152 D. $220,544

Mathematics

Solve the problem.Use the following table, which shows the average price for a new beverage that is served at a coffee chain. Let the 10 selected regions represent the universal set. Use the list to represent the set in  form.The set of regions in which the average price for the new beverage is less than $3.50.

A. {F, G, H, K, L} B. {G, H, K, L} C. {H, K, L} D. {A, B, C, D, E, F}

Mathematics