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Elza [17]
3 years ago
11

1. Part A: Solve the inequality. Show work for full credit. 2x+3<7

Mathematics
2 answers:
LiRa [457]3 years ago
7 0

Answer:

x<2

Step-by-step explanation:

2x+3<7

Subtract 3 from both sides:

2x<4

Divide both sides by 2:

x<2

Harman [31]3 years ago
5 0

Answer:

x < 2

Step-by-step explanation:

If 2x + 3 is less than 7, then 2x alone must be less than 4.

2x + 3 < 7

2x < 4

If 2x is less than 4, then x must be less than 2.

2x < 4

x < 2

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Building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18 \pi18π18, pi m
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the area A of the cross section of the column is (81\pi )m^2 .

<u>Step-by-step explanation:</u>

Here we have , building engineer analyzes a concrete column with a circular cross section. The circumference of the column is 18π, pi meters. We need to find What is the area A of the cross section of the column .Let's find out:

We know that  , Circumference of circle = 2\pi r

⇒ Circumference = 2\pi r

⇒ 18\pi= 2\pi r

⇒ \frac{18\pi}{2\pi }= \frac{2\pi r}{2\pi }

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Therefore , the area A of the cross section of the column is (81\pi )m^2 .

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