Exponents
what is 20 to the power of 0
1
What is 45,000 in scientific notation?
4.5 x 104
4(2x + 3 = -3 (x - 1) + 31
x=2
What is √225?
15
Write an equation in slope-intercept form for a line that passes through (0,3) and has a slope of -2?
y = -2x + 3
52 + 33
52
Find the sum of 6.0 x 106 and 4.0 x 105. Express your answer in scientific notation.
6.4 x 106
-4n - 5 + n = 7(7- 7n) + 6(1 + 6n)
n=6
A square TV screen has an area of 500 square inches. What is the approximate side length to the nearest inch?
22 inches
Write the equation in slope-intercept for a line that passes through the points (-2,5) and (4, -1)
y=-x+3
Solve
A3 x A5
A8
Which of the following is approximately the distance from Earth to the Sun (93,000,000 miles) in scientific notation
A) 9.3x 106
B) 9.3 x 107
C) 93 x 106
D) 0.93 x 108
B) 9.3 x 107
Five friends each buy a ticket to a concert and a $12 t-shirt. If their total spent was $185, what was the price of one concert ticket?
$25
The area of a square is 200 in2. To the nearest tenth, what is the side length?
14.1
Graph the equation x + 2y = 6 by finding the x-intercept and y-intercept
x (6,0)
y (0,3)
(8x3) (-3x9)
−24x12
The speed of light is 3 x 108 meters per second. If the sun 1.5 x 1011 meters from Earth, how many seconds does it take light to reach the Earth?
500 seconds
Amanda spent half of her weekly allowance on candy. To earn more money, she cleared windows for $10. She ended up with a total $14. What is her weekly allowance?
$8
What is the value of √324?
18
Convert the equation -2x - 3y = 15 to slope-intercept form
y= - 2/3x - 5
(43)5 x 4-6
49
Write 5.2 x 10-5 in standard form
0.000052
12(x + 3) - 3x = 117
x=9
Yusif is selling a square coffee table on Craigslist. His ad says the table has an area of 289 square inches. How long is each side of the table?
17 inches
What are the coordinates of the origin, where the x-axis and y-axis intersect?
(0,0)