Mathematics, 15.12.2021 06:10 Astudent333
What I Know
Choose the letter of the best answer. Write the chosen letter on a separate sheet of
paper.
1. Which of the following below are like terms?
A. 2x, 3x, 4x, 5x
B. β4a, β3a, β2a, ab
C. 3x, x
2
, x
3
, x
4
D. xy, 3xy, 5y, 4z
2. Which of the following would result to a sum of 5ab?
A. 2a + 3b
B. 4a + b
C. 2ab + 3ab
D. 3a + 2b
3. What is the simplified term of 3x + x β 2x + 5x?
A. 6x
B. 7x
C. 8x
D. 9x
4. What must be subtracted from 8a + 3 to make a difference of 5a + 1?
A. 3a + 2
B. 3a β 2
C. 3a + 4
D. 3a β 4
5. Mark saved 15x + 8 from his allowance. How much did he have after buying
a gift worth 10x + 3 for his motherβs birthday?
A. 5x β 5
B. 5x + 5
C. 5x β 11
D. 5x + 11
6. Which of the following illustrates the law a
n = a β a β a β a ... β a (n times)?
A. x
5 = x β x β x β x β x
B. 2
3 = 3 β 3
C. 3
4 = 3 β 4
D. x
5 = x β 5
7. Which of the following statements illustrates the law: a
n
β a
m = a
n+m?
A. 2
3
β 3
4 = 6
7
B. 3
3
β 2
5 = 6
15
C. 2
3
β 2
4 = 2
12
D. 3
2
β 3
4 = 3
6
8. hich of the following is true?
A. 5
2 + 5
3 = 5
5
B. 2
2
2
3 =
1
2
C. (3
2
)
9 = 9
18
D. (4
3)
2 = 4
5
CO_Q2_Mathematics 7_Module 5
3
9. Divide (4x
2 β 24x + 35) Γ· (2x β 5).
A. 2x β 7
B. 2x + 12
C. 2x β 12
D. 2x + 7
10.The length of the rectangle is 2x β 3 and its width is equal to x β 1. Find the
area of the rectangle.
A. x β 2
B. 3x β 4
C. 2x2 β x β 3
D. 2x2 β 5x + 3
11.Which of the following is the result when (3a
2b
3
) is multiplied to (4a
3b
2
)?
A. 7a
5b
5
B. 7a
6b
6
C. 12a
6b
6
D. 12a
5b
5
12.Which of the following describes the product of (b + 5)(b + 5)?
A. a monomial
B. a binomial
C. a trinomial
D. a multinomial
13.Which of the following is the result when (x + 7) is multiplied to (x + 4)?
A. x
2 + 11x + 28
B. x
2 + 28x + 11
C. x
2 + 7x + 28
D. x
2 + 8x + 28
14.Divide 12x
3y
4 + 9x
2y
3 β 3x
5y
2 by 3x
2y.
A. 6x
2y
4
B. 6xy3 + y
2 β x
3y
C. 3x
4 + 2y
4
D. 4xy3 + 3y
2 β x
3y
15.The product of 4x
2y
5 and a certain monomial is 28x
7y
9
z
2
. What is the
missing factor?
A. 7x
5y
4
B. 7x
9y
14z
2
C. 7x
5y
2
z
2
D. 7x
5y
4
z
2
Answers: 1
Mathematics, 21.06.2019 21:30
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Answers: 1
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The coordinates of vortex aβ are (8,4) (-4,2) (4,-,4) the coordinates of vortex bβ are (6,6)(12,-,12)(12,12) the coordinates of vortex cβ are(-2,,12)(4,12)(12,-4)
Answers: 3
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Were only 64 seats. the remaining 6 students had to travel in a separate van. the equation 2b + 6 = 70 represents the given scenario. what does b represent? the number of buses the number of vans the number of students who rode on each bus the total number of students going to the football game
Answers: 1
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Aking and his army will attempt to capture a fortress. the left and right flanks break off from the main group to attack the west and east guard towers. suppose the left flank has a 60% chance of success and the right flank has a 75% chance of success, independently of one another. if both flanks capture their respective targets, then the king has a 98% chance of successfully taking the fort. if, however, only the left flank captures its tower, the king has an 80% chance of success; if only the right flank succeeds, the king has a 50% chance. if both flanks fail, then the king's chance of capturing the fort drops to 20%. it turns out the king captures the fort. what is the probability that one, and only one, flank was successful (either the left, or the right, but not both)? (round your answer to 3 decimal places)
Answers: 2
What I Know
Choose the letter of the best answer. Write the chosen letter on a separate sheet of
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