PU Real Numbers Function Values Simplified Expressions & Product Rule Exam Practice

18 questions test…………………………………………………………………

Evaluate the expression, or state that the expression is not a real number.
7-1
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
(Simplify your answer.)
O A. The expression is a real number. V-1
O B. The expression is not a real number.
Evaluate the expression or state that the expression is not a real number.
25
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
OA.
25
(Type an integer or a simplified fraction.)
OB. The square root is not a real number.
Evaluate the expression, or state that the expression is not a real number.
1225-81
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
(Type an integer or a decimal.)
A. The expression is a real number. 225-81 =
OB. The expression is not a real number.
Evaluate the expression.
V64 – 781
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. V64 – 81 =
OB. The expression is not a real number,
Find the indicated function values for the function. If the function value is not a real number and does not exist, so
f(x) = VX-4; f(40), f(13), f(4), f(-6)
Select the correct choice below and, if necessary, fill in the answer box to complete your answer.
O A. f(40) =
(Round to two decimal places as needed.)
O B. The answer is not a real number.
Select the correct choice below and, if necessary, fill in the answer box to complete your answer.
O A. f(13) =
(Round to two decimal places as needed.)
O B. The answer is not a real number.
Select the correct choice below and, if necessary, fill in the answer box to complete your answer.
A. f(4) =
(Round to two decimal places as needed.)
O B. The answer is not a real number.
Select the correct choice below and, if necessary, fill in the answer box to complete your answer.
O A. f(-6)=
(Round to two decimal places as needed.)
OB. The answer is not a real number.
Simplify the expression.
16×20
V 16×20
0
(Simplify your answer.)
Find the cube root.
1000
1000 =
Find the cube root
3
– 27
64
3/ -27
(Simplify your answer. Type an integer or a fraction.)
64
Use the product rule to multiply.
~15.12
15.v2 =
(Simplify your answer. Type an exact answer, using radicals as needed.)
Use the product rule to multiply.
7x
3
7
7x
3
(Simplify your answer. Type an exact answer, using radicals as needed.)
Use the product rule to multiply.
6
х
6
8
6 X
8
6
у
(Simplify your answer. Type an exact answer, using radicals as needed.)
Use the product rule to multiply.
4x?y 10x®y?
4x?y. $ 10x®y? =D
(Simplify your answer. Type an exact answer, using radicals as needed.)
Simplify the expression.
V250
250
(Type an exact answer, using radicals as needed.)
Simplify by factoring
3216×3
3 216×3
(Simplify your answer. Type an exact answer, using radicals as needed.)
Multiply and simplify. Assume that all variables in a radicand represent positive real numbers and no radicands involve negative quantities raised to even powers.
513.4160
51/3.4160 = 0
(Simplify your answer. Type an exact answer, using radicals as needed.)
Solve the radical equation.
8x-4 = 6
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The solution set is
(Type an exact answer, using radicals as needed. Use a comma to separate answers as needed.)
O B. The solution is the empty set.
Solve the radical equation.
V3x-2-4 = 0
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The solution set is
(Use a comma to separate answers as needed. Type exact answers, using radicals as needed.)
O B. The solution is the empty set.
Solve the radical equation.
3x – 22 – 2 = 0
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The solution set is {
(Type an exact answer, using radicals as needed. Use a comma to separate answers as needed.)
OB. The solution is the empty set.