8th Grade
Surprise
Surprise
A function has these points (1,2), (2,8),(4,10)
Give the domain
Domain: 1,2,4
What is 2560000 written in scientific notation?
2.56x106
3x+6=-15
x=-7
Tamaya picks a card at random from cards 3,4,5,6, and then she picks another card after replacing the first one.
What is the theoretical probability of picking an odd number, and then picking an even number?
0.25
All the angles in a triangle should add up to what degrees?
180 degrees
Which of the following transformations changes the size of a polygon, producing a similar figure that is not congruent?
A. Translation
B. Rotation
C. Reflection
D. Dilation
Dilation
another word for slope
m
Write the number below in standard notation
.0000082
8.2 x 10-6
x3=27
3
A bag has 3 red, 2 blue, and 5 green marbles. If you draw 100 marbles (with replacement), how many would you expect to be blue?
20
Two angles, angle A and angle B, are supplementary. If the measure of angle A is 55 degrees, what is the measure of angle B ?
125
What is the slope of y=7x+12
7
(2x3)-2
1/4x6
Write 588.200 x 104 in scientific notation
5.882x106
How many solutions are there?
6x−2x+9=4x+9
Infinitely many
To determine if something is a function do we have to see if the x values or y values repeat?
x values
Two angles, angle A and angle B, are complementary. If the measure of angle A is 37 degrees, what is the measure of angle B ?
53
Simplify:
2x3 (3x5 )
6x8
Factor 34x3+18x2+10x
2x(17x2+9x+5)
If you are solving a multistep equation and get 6=9 how many solutions are there?
None
-4
What are the possible outcomes when you flip a coin, spin a 5-section spinner, and roll a number cube?
60
Can you form a triangle with the lengths 5, 10, and 18?
Explain your reasoning.
According to the Triangle Inequality Theorem, the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
10+5>18
No
What is the angle measure of a straight line?
180 degrees
If Marcus spins a spinner with 8 equal sections numbered 1 through 8 a total of 240 times, how many times can he predict that the spinner will land on 5?
30
A computer processes data at a rate of 6.5×107 calculations per second. It runs for 2×104 seconds.
👉 How many total calculations does it complete in scientific notation?
1.3x1012
x/4 +2 = 13
44
How many possible outcomes are there when you flip a coin three times?
8
What is the length of the hypotenuse when the legs are 3 and 4
a2+ b2 = c2
32 + 42 = c2
9 + 16 =25
c = 5
If you are solving a multistep equation with variables on both sides and get 9=9, how many solutions are there?
Infinite number of solutions