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Practice Test Answers

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1
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The formula to determine energy is cap e is equal to 1 half m v squared What is the formula solved for v ?

A
v is equal to plus or minus square root of m over 2 cap e end root
B
v is equal to plus or minus square root of 2 cap e over m end root
C
v is equal to plus or minus square root of 2 cap e minus m end root
D
v is equal to 2 cap e minus m
2
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Layna can paint a 350-square foot room in 4 hours. It takes Bebe 7 hours to paint the same room. Which equation can be used to find the time in hours, t, it takes Layna and Bebe to paint the room together? Rate (Rooms per Hour) Time (Hours) Fraction Completed Layna 1 fourth Bebe 1 seventh

A
1 fourth t times 1 seventh t is equal to 1
B
1 fourth t plus 1 seventh t is equal to 1
C
4 t minus 7 t is equal to 1
D
4 t plus 7 t is equal to 1
3

Celo used the simple interest formula cap A is equal to cap p times open paren 1 plus r t close paren to calculate the interest he earned on his savings last month. Which equation is equivalent to the simple interest formula?

A
cap p is equal to the fraction with numerator 1 plus r t and denominator cap A
B
cap p is equal to the fraction with numerator cap A and denominator 1 plus r t
C
cap p is equal to cap A plus open paren 1 plus r t close paren
D
cap p is equal to cap A minus open paren 1 plus r t close paren
4

It takes Franklin 14 hours to make a 200 -square-foot cement patio. It takes Scott 10 hours to make the same size patio. Which equation can be used to find x , the number of hours it would take Franklin and Scott to make the patio together?

A
14 x minus 10 x is equal to 200
B
14 x plus 10 x is equal to 200
C
1 over 14 x minus 1 tenth x is equal to 1
D
1 over 14 x plus 1 tenth x is equal to 1
5

What is the coefficient of the x squared -term of the algebraic expression 2 x to the 4th power plus x squared minus x plus 7 ?

A
negative 1
B
0
C
2
D
1
6

Which graph shows all the values that satisfy 2 ninths x plus 3 is greater than 4 and 5 ninths ?

A
Image with description A number line lists negative 10 to 10 by 5. An open circle is on negative 7. An arrow goes to the right of negative 7.
B
Image with description A number line lists negative 10 to 10 by 5. An open circle is on negative 7. An arrow goes to the left of negative 7.
C
Image with description A number line lists negative 10 to 10 by 5. An open circle is on 7. An arrow goes to the right of 7.
D
Image with description A number line lists negative 10 to 10 by 5. An open circle is on 7. An arrow goes to the left of 7.
7

Which graph shows the solution set of the compound inequality 1 point 5 x minus 1 is greater than 6 point 5 or 7 x plus 3 is less than negative 25 ?

A
Image with description A number line lists negative 10 to 10 by 5. An open circle is on negative 4, and another one is on 5 are connected.
B
Image with description A number line lists negative 10 to 10 by 5. An open circle on negative 4 and another one on 5, and the arrows go in opposite directions.
C
Image with description A number line lists negative 10 to 10 by 5. An open circle is on 5, and the arrow goes to the right of 5.
D
Image with description A number line lists negative 10 to 10 by 5. An open circle on negative 4 and an arrow goes to the left of negative 4.

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