Chapter 8 Test Questions
Simplify the expression.
2y-9h2(2y0h-4)-6
h26/32y9
Write the polynomial in standard form and name it. 3k5+4k2 - 6k5 - 5k2
-3k5 - k2
Simplify. 3 + 5 - 4
4
Determine whether 6,8,10 can be sides of a triangle
Yes
Find the constant of variation k for the inverse variation. y=2.4 when x = -10
k = -24
Use the sequence -32, 16, -8,4,... to find the ninth term of the sequence.
-1/8
Write in standard form.
(4x2 -2x + 5) + (7x2 - 5x + 2)
11x2 - 7x+7
[3 2] [8 -5]
[-1 5] + [3 0]
[2 5]
Find AB. A(1, -2), B(5,7)
√97
Solve. 3/x-2 ⋅ x2 - 4/12
x+2/4
Evaluate each function for
x= 1,2, and 3 in the equation g(x) = 5(3/4)x
15/4, 45/16, 135/64
Factor the expression.
9k2 +24k + 16
(3k+4)2
(7 - 42a)(-3/7)
-3 + 18a
Find the mid point of the segment of: A(4,9),B(1.-5)
(2.5, 2)
Divide. (12x4 + 9x3 - 102) ➗ 3x3
4x + 3 - 10/3x
One kind of bacteria in a laboratory culture triples in number every 30 minutes. Suppose a culture is started with 30 bacteria cells. How many bacteria cells will there be after 2 hours.
2430 bacteria cells
Factor completely. 3u2 - 21u + 18
3(u-1)(U-6)
Right an expression for each phrase. The quantity p minus five eighths times the quantity one fourth plus p
(p - 5/8)(1/4 + p)
Simplify the radical expression. 3 √(32) + 5 √(2)
17 √2
Solve.
2/3 + t-6/t-3 = 18/(2(t-3))
10 1/5 or 10.2
Suppose a new car is worth $20,000. You can use the function y=20,000(0.85)x to estimate
$10,440
Factor. 64x2 + 40x + 6
2(8x + 30) x (4x+1)
In which quadrant find this point. (-3, -6)
quadrant III
Solve the radical expression. 5√(x) = √(15x + 60)
x = 6
Add.
(4b - 2)/(3b) + b/(b+2)
(7b2 + 6b - 4)/(3b2 + 6b)