What is the square root of 49?
7 and -7
2x + 9x - x = -300
x = -30
Write a linear equation for this situation: Mr. Hines makes an international phone call. He pays a fee of $1.25 plus $0.55 per minute. What is the equation to find the price, y, after x minutes?
y = 0.55x + 1.25
Find the volume of a cylinder that has a diameter of 12 cm and a height of 8 cm.
904.32 cubic centimeters
16 mm
Convert the following into scientific notation: 0.000 000 000 000 000 000 000 000 067
6.7 x 10-26
8x + 6x + 8 = 10x - 3x - 20
x = -4
Is this a function? Why or why not?
(-9, -13), (-7, 0), (-2, 10), (8, 10)
Yes, every input has exactly one output
Triangle ABC has an exterior angle of 130 and one of its opposite interior angles is 60. What is the other opposite interior angle?
70 degrees
What is the distance between (-5, -6) and (-8, 8)? Round to the nearest hundredth.
14.32 units
A hydrogen molecule is 1.5 x 10-10 meters in length. What is this number in standard form?
0.000 000 000 15
5(2x + 9) - 27 + 2x = 108 + 2x
x = 9
(2x2)-4
8-4x-8
1/84x8
1/4096x8
Angle A and B are corresponding angles. What is the value of x?
A: 5x + 55
B: 2x + 100
x = 15
The point (-3, 4) is rotated 180 degrees around the origin. What is the new point?
(3, -4)
Simplify. Write your answer in scientific notation:
(2 x 103) + (3 x 102)
2.3 x 103
-4x - 2y = -12
4x + 8y = -24
(6, -6)
(4x0)2
16
Angles X and Y are alternate interior angles. If Angle X is equal to 100, what is the measure of Angle Y?
100 degrees
The point (-6, -4) is reflected across the x-axis. It is then rotated 90 degrees counterclockwise. And finally, translated 2 units up. Where is the point now?
(-4, -4)
If the sun is 90 million miles away from the Earth. Pluto is 3.3 billion miles away from the Earth. How many times further is Pluto than the sun from Earth? Round to the nearest whole number.
37 times further away
Solve this system using any method (graphing, substitution, elimination):
y = -2
4x - 3y = 18
(3, -2)
If a graph has a linear line on it, is it always function? Explain.
No, it would not be a function if the linear line had an undefined slope (vertical line)
A five inch deep ice cream cone has a radius of 1 inch. Half of a sphere scoop of ice cream is placed on top that also has a 1 inch radius. What is the total volume of the cone and ice cream? Round to the nearest hundredth
7.33 cubic inches
If Triangle ABC has a base of 20 feet and an area of 400 square feet, and if triangle DEF is similar and has a base of 10 feet, what would the area of triangle DEF be?
100 square feet