1. Mark each statement in the table below as True or False
A. The product of a rational number and an irrational number is only sometimes irrational.
B. The product of two rational numbers will never be rational.
C. The sum of a rational number and an irrational number is only sometimes irrational.
D. The sum of two rational numbers will always be rational.
2. What are the terms of the expression as written: −2x+5(x−3) +10
A. −2, x, 5, (x−3)
B. −2x, 5x, −15, 10
C. −2x, 5(x−3), 10
D. −2x, 5, (x−3), 10
3. Select the factors of the expression as written −5x(x−2)(x+3)
A. -2
B. -5
C. (x-2)
D. 3
E. (x+3)
F. X
4. A taxi fare in dollars can be calculated using the function: f(x)=3x+1 where x is the number of miles travelled. What does the coefficient of 3 represent in this context?
A. It represents the initial cost of getting the taxi.
B. It represents the cost per mile of travel the taxi charges.
C. It represents the variable used in the function.
D. It represents the final cost of the trip.
1.
A. True
B. False
C. True
D. True
2. C. -2x, 5(x-3), 10
3. B. -5, C. (x-2), E. (x+3)
4. B. It represents the cost per mile of travel the taxi charges.
1. Below are four equations, match each equation to the property that is used to rewrite the left hand side to look like the right hand side
(4(xy)+5x)+7y=4(xy)+(5x+7y)
5x+7(x−3)=7(x−3)+5x
5x+7(x−3)=5x+(x−3)⋅7
(4(xy)+5x)+7y=((4x)y+5x)+7y
Associative property of multiplication
Commutative property of addition
Associative property of addition
Commutative property of multiplication
2. Select the expression below that is equivalent to the expression 7x−5xy+13
A. 5xy−7x+13
B. −5xy+13+7x
C. 13−7x+5xy
D. 7xy−5+13x
3. Select the expression below that is equivalent to the following expression 5(x−y)(x+7)
A. 5x−5y(x+7)
B. 5(y−x)(7+x)
C. 5(x+7)(x−y)
D. 5(x2−7y)
4. Solve the following equation for a: F=ma
A. A=F-m
B. A=F/m
C. A=Fm
D. A=m/F
5. Solve the following equation for a: V=V0+at Note that V0is a different symbol (it represents the initial Velocity), and thus a different object than V (which represents the Velocity at the given time, t).
A. A=v-t/v0
B. a=V−V0−t
C. a=V-v0/t
D. a=(V−V0)t
1.
Associative property of multiplication
2. C. 13−7x+5xy
3. C. 5(x+7)(x−y)
4. B. A=F/m
5. C. a=V-v0/t
1. Below are four equations, match each equation to the property that is used to rewrite the left hand side to look like the right hand side
(4(xy)+5x)+7y=4(xy)+(5x+7y)
5x+7(x−3)=7(x−3)+5x
5x+7(x−3)=5x+(x−3)⋅7
(4(xy)+5x)+7y=((4x)y+5x)+7y
• Associative property of multiplication
• Commutative property of addition
• Associative property of addition
• Commutative property of multiplication
2. Select the expression below that is equivalent to the expression 7x−5xy+13
A. 5xy−7x+13
B. −5xy+13+7x
C. 13−7x+5xy
D. 7xy−5+13x
3. Select the expression below that is equivalent to the following expression 5(x−y)(x+7)
A. 5x−5y(x+7)
B. 5(y−x)(7+x)
C. 5(x+7)(x−y)
D. 5(x2−7y)
4. Solve the following equation for a: F=ma
A. A=F-m
B. A=F/m
C. A=Fm
D. A=m/F
5. Solve the following equation for a: V=V0+at Note that V0is a different symbol (it represents the initial Velocity), and thus a different object than V (which represents the Velocity at the given time, t).
A. A=v-t/v0
B. a=V−V0−t
C. a=V-v0/t
D. a=(V−V0)t
1.
A. Associative property of multiplication
B. Commutative property of addition
C. Associative property of addition
D. Commutative property of multiplication
2. C. 13−7x+5xy
3. C. 5(x+7)(x−y)
4. B. A=F/m
5. C. a=V-v0/t
1. Blood is taken to the lungs to become oxygenated and returned to the heart before being pumped through the body. Which blood vessels carry blood away from the heart?
A. Elastic
B. Veins
C. Arteries
D. Capillaries
2. Oxygen is taken into the body from the environment, and carbon dioxide is removed from the body and released into the environment. Which body system is responsible for exchanging gases with the environment?
A. endocrine system
B. circulatory system
C. respiratory system
D. nervous system
3. A football player gets tackled during the game, which of the following body systems is responsible for protecting their organs?
A. skeletal system
B. reproductive system
C. nervous system
D. circulatory system
4. Make the connection: your heart is dependent on oxygen from your respiratory system, and it is delivered by the
A. respiratory system.
B. nervous system.
C. circulatory system
D. muscular system.
5. Predict which body system interacts with the one shown in this image to let you know that you are hungry.
A. circulatory system
B. respiratory system
C. digestive system
D. nervous system
1. C. Arteries
2. C. Respiratory system
3. A. Skeletal system
4. C. Circulatory system
5. D. Nervous system