End of Year Review

Which quotient is negative?

• A

• B

• C

• D

Select ALL sets of lengths that could be the sides of a triangle

• 8m, 6m, 10.6m

• 9ft, 12ft, 2ft

• 4.3cm, 2.8cm, 8.5cm

• 15yd, 20yd, 31yd

• 23in, 41in, 29in

Which expression has a product of 1?

• $\frac{2}{3}\times3$

• $\frac{5}{8}\times\frac{5}{8}$

• $1\times\frac{1}{2}$

• $\frac{1}{6}\times6$

 $\left(\frac{1}{2}x+\frac{1}{3}\right)-\left(\frac{1}{4}x-\frac{5}{12}\right)$ 

 Which expression is an equivalent expression?

•  $\frac{1}{4}x-\frac{3}{4}$  

•  $\frac{1}{4}\left(x+3\right)$  

•  $\frac{1}{4}\left(x+12\right)$  

•  $\left(\frac{1}{2}x-\frac{1}{4}x\right)+\left(\frac{1}{3}-\frac{5}{12}\right)$  

A DVD spins while a DVD player reads information from it. The DVD makes 7/2 revolutions in 1/3 second. What is the unit rate at which the DVD spins?

• $\frac{2}{21}rev\ per\ \sec$

• $\frac{6}{7}rev\ per\ \sec$

• $\frac{7}{6}rev\ per\ \sec$

• $\frac{21}{2}rev\ per\ \sec$

Which expression has a sum of 0?

• $-8.2-8.2$

• $-4.25+\left(-4.25\right)$

• $7\ \frac{1}{3}-\left(-7\ \frac{1}{3}\right)$

• $5\ \frac{3}{10}+\left(-5\ \frac{3}{10}\right)$

The number of blue markers in an art cabinet is 26 less than half the number of green markers. If there are 138 green markers, how many blue markers?

• 43

• 56

• 82

• 112

A town council will survey residents to determine if a local recreation center should build a pool. Which sampling method will produce a random sample of the residents in the town?

• Survey every person at the mall on a selected day

• Survey the family and friends of town council members

• Survey 500 residents randomly selected from a list of all residents in the town

• Mail surveys to all residents and analyze the replies

 $3.4\left(x+1.58\right)=-11.288$  

What is the value of x in the equation?

• -4.9

• -4.8

• -2.8

• -2.9