PLEASE HELP WILL MARK BRAINIEST IF 100% RIGHT
1.) Use the distributive Property to simplify the expression .
(-1)(4 - c)
A. 4 - c
B. -4 + c
C. 4 + c
D.-4 - c
2.)Use the distributive Property to simplify the expression
4(2x - 4)
A.8x + 4
B.8x - 4
C.8x - 16
D.4x - 16
3.) Use the distributive Property to simplify the expression
(10 + 4y) 1/2
A. 5 + 2y
B. 20 + 8y
C. 5 + 4y
D. 10 +2y
4.) To which subsets of real numbers does the number - 22 belong ? Choose all that apply (2 points)
A.Whole numbers
B.Rational numbers
C. Integers
D. Irrational numbers
E. Natural numbers
5.)What is an algebraic expression for the following word phrase: "6 times the difference of b and p" ?
A. 6b - p
B. 6(b - p)
C. 6 - bp
D. 6bp
6.)What is the simplified form of the expression ?
5(14 - 2)^2
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2
A. 60
B. 30
C. 72
D. 360
7.) Evaluate u + xy, if u = 18, x = 10, and y = 8
A.188
B.36
C.98
D.224
8. A square field has an area of 479 ft^2 . What is the approximate length of a side of the field ? Give your answer to the nearest foot . Explain your response .
9. Simplify the expression (7 + 5) + 4 x 13 - 2 Show work .
Answers
1.) Use the distributive Property to simplify the expression .
(-1)(4 - c)
A. 4 - c
B. -4 + c
C. 4 + c
D.-4 - c
Answer:
-1(4-c)
=-1*4-1*-c
=-4+c
Hence choice B is correct.
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2.)Use the distributive Property to simplify the expression
4(2x - 4)
A.8x + 4
B.8x - 4
C.8x - 16
D.4x - 16
Answer:
4(2x-4)
=4*2x-4*4
=8x-16
Hence choice C is correct.
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3.) Use the distributive Property to simplify the expression
(10 + 4y) 1/2
A. 5 + 2y
B. 20 + 8y
C. 5 + 4y
D. 10 +2y
Answer:
(10 + 4y) 1/2
=10*1/2 + 4y*1/2
=5 + 2y
Hence choice A is correct.
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4.) To which subsets of real numbers does the number - 22 belong ? Choose all that apply (2 points)
A.Whole numbers
B.Rational numbers
C. Integers
D. Irrational numbers
E. Natural numbers
Answer:
-22 is a whole number.
-22 can be written as -22/1 so it is rational
It is also integer.
Not natural or irrational
Hence choice A,B,C are correct.
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5.)What is an algebraic expression for the following word phrase: "6 times the difference of b and p" ?
A. 6b - p
B. 6(b - p)
C. 6 - bp
D. 6bp
Answer:
6(b-p)
Hence choice B is correct.
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6.)What is the simplified form of the expression ?
5(14 - 2)^2
------------------
2
A. 60
B. 30
C. 72
D. 360
Answer:
=5*72
=360
Hence choice D is correct.
-------------------
7.) Evaluate u + xy, if u = 18, x = 10, and y = 8
A.188
B.36
C.98
D.224
Answer:
u+xy= 18+10*8=18+80=98
Hence choice C is correct.
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8. A square field has an area of 479 ft^2 . What is the approximate length of a side of the field ? Give your answer to the nearest foot . Explain your response .
Answer:
x=21.8860686282
Which is approx 22 feet.
Hence choice D is correct.
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9. Simplify the expression (7 + 5) + 4 x 13 - 2 Show work .
Answer:
(7 + 5) + 4 x 13 - 2
=12 + 4 x 13 - 2
=12 + 52 - 2
=64 - 2
=62
Hence final answer is 62.
- -1(4-c)
- =-1*4-1*-c
- =-4+c
- Hence choice B is correct.
-------------------
- 4(2x-4)
- =4*2x-4*4
- =8x-16
- Hence choice C is correct.
-------------------
- (10 + 4y) 1/2
- =10*1/2 + 4y*1/2
- =5 + 2y
- Hence choice A is correct.
-------------------
- -22 is a whole number.
- -22 can be written as -22/1 so it is rational
- It is also integer.
- Not natural or irrational
- Hence choice A,B,C are correct.
-------------------
- 6(b-p)
- Hence choice B is correct.
-------------------
- 5(14 - 2)^2
------------------
- = {5(12)^2}/{2}
- = 5⋅144/2
- =5*72
- =360
- Hence choice D is correct.
-----------------
- u+xy= 18+10*8=18+80=98
- Hence choice C is correct.
----------------
- Area=479
- x^2=479
- x=21.8860686282
- Which is approx 22 feet.
- Hence choice D is correct.
------------------
- (7 + 5) + 4 x 13 - 2
- =12 + 4 x 13 - 2
- =12 + 52 - 2
- =64 - 2
- =62
- Hence final answer is 62.