8th Grade Math

1

100

What do the angles in a triangle add up to?

180 degrees 

200

What does dilation not perserve?

Congruence

300

What is the translation rule of a figure that translated 5 units left and 8 units down?

(x-5, y-8)

400

When x = 5, y =35. Y varies directly with x. What is y when x = 7?

y=49

500

Mr. Jenkins deposited $1250. Mr. Jenkins earned compound interest at a rate of 6%. What is the total amount in the account after 5 years?

$1672.78

2

100

What is the longest side of a right triangle?

hypotenuse 

200

Write the numbers in ascending order. 

3, √10, 3/4, -1.5

-1.5, 3/4, 3, √10

300

How much simple interest does a $482 investment earn at 5% over three years?

72.3

400

What is the equation of a line when slop is 5 and y intercept is 8. 

y=5x+8

500

Sam deposited $250. She earned compound interest at a rate of 3%. What is the total amount in the account after 2 years?

$265.23

3

100

What is the pythagorean theorem?

a² + b² = c²

200

What type of dilation would a figure with a scale factor of 1/2 have?

Reduction

300

What is the lateral surface of a rectangular prism?

l=5in

w=8in

h=4in

104 in²

400

What is the equation of a proportional relationship? 

y=kx

500

How do you find the interest of an account compounded annually? 

Interest=A-P

4

100

What is the equation of a non proportional relationship?

y=mx + b

200

4(x-5)+10 = 3(x-2)

x=4

300

What is the slope of a line passing through the points (3,0) and (-3,18)?

m= -3

400

Bryan deposited $2500 into his account. It is earning simple interest at 8% over four years?

$3300

500

Reflection over the x axis:

(x,-y)

5

100

What are all 4 four transformations? 

Translation, Rotation, Reflection, Dilation

200

What is the y-intercept of the line with the equation y=1/2x + 5?

(0,5)

300

What is the volume of a cylinder with a diameter of 10cm and a height of 8cm?

628.32 cm³

400

What is the formula for total surface area of a prism?

S = Ph + 2B

500

When is Ms. Rochas birthday?

June 11th