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Contact [7]
3 years ago
5

3x into 4x minus 5 plus 3 if x is equal to 1/2

Mathematics
1 answer:
Solnce55 [7]3 years ago
8 0

Answer: 8 3/4

Step-by-step explanation:

3x(4x-5+3); where x is 1/2

Substitute the value 1/2 with x

3 1/2 (4 1/2 - 5+3)

7/2 (9/2 -2)

7/2 (5/2)

35/4 = 8 3/4

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Answer:

Below

Step-by-step explanation:

The length of this triangle is 3x+1 and the width is x.

The perimeter P is:

P= 2(3x+1)+2*x

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Let's evaluate it when x=1/2

●1/2 =0.5

P= 8*0.5+2 =4+2= 6 ft

●●●●●●●●●●●●●●●●●●●●●●●●

The area A is:

A = (3x+1)*x

A= 3x^2 +x

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A= 3*0.5^2 +0.5

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A= 1.25 ft^2

6 0
2 years ago
Help please, I don’t know what to do..
victus00 [196]

Answer:

d. 6

Step-by-step explanation:

6 0
2 years ago
Which statement is true about the function
Lana71 [14]
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4 0
3 years ago
Read 2 more answers
_ Is –7 + 9 positive or negative
Yanka [14]

Answer:

Positive 2

Step-by-step explanation:

its like ur subtracting 9+ (-7)

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5 0
2 years ago
Write a equivalent expression for 12a+60
viva [34]

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8 0
2 years ago
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