8th Grade Quiz Bowl round 2

What is the solution to the system?

 $y=-\frac{1}{2}x+5$ 
 $y=3x-2$  

• (2,4)

• (-2,-8)

• (1,1)

• (0,-2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The earth is 91,750,000 miles from the sun. The earth's circumference is 25,000 miles around. How many times greater is the distance from the earth to the sun than the circumference of the earth, in scientific notation?

• $2.29375\times10^{12}$

• $3.67\times10^{-3}$

• $3.67\times10^3$

• $2.29375\times10^{-12}$

Tags

CCSS.8.EE.A.3

The points (3, -2) and (7, 2) are both points on a straight line. What is the rate of change of this line?

• 0

• -1

• undefined

• 1

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Which fraction is equivalent to the decimal $0.94\overline{5}$ ? 

•  $\frac{945}{999}$  

•  $\frac{945}{1000}$  

•  $\frac{851}{900}$  

•  $\frac{94}{99}$  

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Which relationship is not a function?

• (1, 2), (3, -2), (4, 5), (5, -2)

• (0, 0), (3, 5), (1, -6), (2, -2)

• (4, -1), (3, 0), (7, -2), (-1, 5)

• (3, -4), (4, 5), (5, -4), (3, 1)

Tags

CCSS.8.F.A.1

 $\frac{4^{-2}\times8\times3^0}{5^2\times5^{-2}}$  

What is the following expression simplified?

•  $2$  

•  $\frac{1}{2}$  

•  $\frac{3}{2}$  

•  $\frac{2}{3}$  

Tags

CCSS.8.EE.A.1

Solve the equation $\frac{4}{5}\left(-5x+10\right)=2x-1$  .

•  $x=\frac{6}{9}$  

•  $x=\frac{3}{2}$  

•  $x=\frac{9}{2}$  

•  $x=\frac{2}{9}$  

Tags

CCSS.8.EE.C.7B

Two parallel lines have been cut by a transversal. What is the value of x?

• x=25

• x=100

• x=16

• x=53

Tags

CCSS.8.G.A.5

Which value falls between 9 and 10 on a number line?

• $\pi+2$

• $3\pi$

• $\sqrt{50}$

• $4\sqrt{10}$

Tags

CCSS.8.NS.A.2

What is the length of the shortest side of a right triangle that's two longer sides are 20 ft. and 25 ft long.  Round your answer to the nearest whole number.

• 32 feet

• 5 feet

• 15 feet

• 45 feet

Tags

CCSS.8.G.B.8