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professor190 [17]
3 years ago
11

A. Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.

Mathematics
2 answers:
sleet_krkn [62]3 years ago
8 0
<span>A. Given the equation 4x + 7 = 3(2x − 5), solve for the variable. 
</span>4x + 7 = 3(2x − 5)
<span>4x + 7 = 6x - 15 (distributive property of multiplication)
4x - 6x = -15 - 7 (transitive property)
-2x = -22
x = 11

B. Sam solved a similar equation below. Is Sam's solution correct? Explain why or why not.

5x − 1 = 2(x + 4)
5x − 1 = 2x + 8
7x − 1 = 8
7x = 7
x = 1

Sam's solution is incorrect, this is the correct solution
</span>5x − 1 = 2(x + 4)
5x − 1 = 2x + 8
5x − 2x = 8 + 1
3x = 9
x = 3
Tju [1.3M]3 years ago
3 0
I hope this helps you




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Question 9 Multiple Choice Worth 1 points)
beks73 [17]

Answer: \bold{10 = \sqrt {\left( {x- 8 } \right)^2 + \left( {y - 9 } \right)^2 }}

Step-by-step explanation:

<u>Given:</u>

The coordinates of Point A: (8, 9)

The coordinates of Point B are unknown: (x, y)

The distance from A to B is 10 units

Then, using the distance formula:

AB = \sqrt {\left( {x- 8 } \right)^2 + \left( {y - 9 } \right)^2 }

Therefore,

10 = \sqrt {\left( {x- 8 } \right)^2 + \left( {y - 9 } \right)^2 }

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If the rate of change (ROC) of the function is quadratic, what is the function type ? Choose the correct answer.
evablogger [386]

If the rate of change (ROC) of the function is quadratic, then the function type is cubic

<h3>What is rate of change?</h3>

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