7th grade quiz bowl round 3

Which of the following is irrational?

• $\frac{33}{17}$

• .25

• $4\pi$

• 0

• 764.987654321

Tags

CCSS.8.NS.A.1

Which of the following is NOT true about the equation

 $y=2x-3$  ?

• The slope is 2.

• The initial value is -3.

• The y-intercept is -3

•  $m=3$  

• It has a positive slope.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Which of the following is 1,247,000 written in scientific notation?

• $1.247\times10^3$

• $0.1247\ \times10^7$

• $12.47\times10^5$

• $1.247\times10^6$

• $1.247\times10^8$

Tags

CCSS.8.EE.A.3

Which has the least value?

• 
  

  $\frac{\pi}{2}$
  

• $\sqrt{2}$

• $^3\sqrt{27}$

• $1.03\times10^3$

• $\frac{12}{38}$

Tags

CCSS.8.NS.A.2

Which of the following does not represent a linear equation?

• $3x^2-y=72$

• $-2y=2x-9$

• $3x=9$

• $\frac{x}{2}+y=4$

• $y-2=0$

Tags

CCSS.8.F.A.3

Which is equivalent to

 $5^{-3}$  ?

• -15

• 125

•  $\frac{1}{5^3}$  

• -125

•  $\frac{-1}{5^3}$  

Tags

CCSS.8.EE.A.1

A tree casts a shadow that is 6.2 meters long. The distance from the top of the shadow to the top of the tree is 7.5 meters. Approximately how tall is the tree?

• 4.22 meters

• 94.69 meters

• 9.73 meters

• 17.81 meters

Tags

CCSS.8.G.B.8

Given the equation

 $3\left(4x-9\right)=2\left(6x+3\right)$ , which statement is true?

• The equation has no solutions.

• The equation has infinitely many solutions.

•  $x=\frac{33}{24}$  

•  $x=0$  

Tags

CCSS.8.EE.C.7A

Which of the following best describes the transformation shown

• Reflection across tthe x-axis

• Reflection across the y-axis

• Rotation of

  $180\degree$

• Rotation of $360\degree$

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which of the following best describes the transformation shown?

• Reflection across the x-axis

• Reflection across the y-axis

• Rotation of

  $180\degree$

• Translation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5