# Math QS

sengkuni
(Not rated)
(Not rated)
Chat

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Determine whether the statement is true or false.
1) ?-7?^(3 )= ?(-7)?^3 1) _______
A) True B) False
2) All integers are whole numbers. 2) _______
A) True B) False
Simplify.
3) (-3[(4+6) - (-1-5)])/((-5)(v16) + 4) 3) _______
A) - 7/4 B) 3 C) - 21/8 D) - 3
Write the statement using mathematical symbols.
4) Twice the sum of x and three is twenty. 4) _______
A) x + 3 = 20 B) 2x + 3 = 20 C) 2(x + 3) = 20 D) 2(x + 20) = 3
Evaluate the expression for the given replacement values.
5) - (y-7x)/(5x-xz) when x = - 3, y = 4, and z = - 4 5) _______
A) 17/3 B) - 8/9 C) - 25/27 D) 17/27
Simplify the expression.
6) 3/4 a + 1/2 - 1/2 a + 4/5 6) _______
A) 1/4 a- 3/10 B) -5/4 a- 3/10 C) -5/4 a+ 13/10 D) 1/4 a+ 13/10
Solve the equation.
7) 3n - 6 + n = 2(2n - 3) 7) _______
A)- 3/2 B) 3/2
C) Ø D) all real numbers
8) (z+3)/6+ 1 = (2z+7)/4 8) _______
A) - 3/4 B) - 7/2 C) - 1 D) 39/4
9) |x + 9| = |5 - x| 9) _______
A) - 2 B) 1/2 C) Ø D) -4
Solve the equation for the specified variable.
10) 5x - 7y = 6 for y 10) ______
A) y= (6-5x)/7 B) y = 5x - 6 C) y= (5x+6)/7 D) y= (5x-6)/7
Solve the inequality. Write your solution in interval notation.
11) -2 -5 18) ______
A) B)
C) D)

Find the domain and range of the relation. Also determine whether the relation is a function.
19)
19) ______
A) domain: (-8, 8); range: (0, 8); not a function
B) domain: (-8, 8); range: (-8, 8); not a function
C) domain: (-8, 8); range: (-8, 8); function
D) domain: (0, 8); range: (0, 8); function
Solve the problem.
20) Sales for a small clothing company can be modeled by the linear function , where x is the number of years since 2005 and S(x) is in dollars. Find the sales in 2010. 20) ______
A) \$246,589 B) \$62,367 C) \$65,801 D) \$260,325

• 9 years ago
Math QS
NOT RATED

Purchase the answer to view it

• math_qs.docx