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stiks02 [169]
3 years ago
15

What are the solutions of the equation (x – 3)2 + 2(x – 3) – 8 = 0? Use u substitution to solve.

Mathematics
1 answer:
Flura [38]3 years ago
8 0

Answer:

<u>u=5</u>

Step-by-step explanation:

(u-3)2+2(u-3)-8=0

2u-6+2u-6-8=0

4u-20=0

4u=20

u=5

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Two angles are supplementary if their sum is​ 180°. the larger angle measures five degrees more than four times the measure of a
wlad13 [49]
Let x represent the smaller angle.
Let y represent the larger angle.

The problem states that the larger angle measures five degrees more than four times the measure of the smaller angle.
With this given information, we can create the following equation.

y=4x+5

Also, they a supplementary, meaning that they add up to 180. We can create another equation.

x+y=180

Since we have two linear equations and we want to find the solution, we have a system of linear equations. Let's solve this system by using the substitution method.

Substitute y=4x+5 into x+y=180

x+y=180

After substituting, you get

x+4x+5=180

Now, combine the x's

5x+5=180

Subtract both sides by 5

5x=175

Divide both sides by 5.

x=35

Now, we can solve for y using the equation x+y=180 since we know the value of x.

35+y=180

Subtract both sides by 35.

y=145

The smaller angle has a measure of 35 degrees and the larger one has a measure of 145 degrees. Have an awesome day! :)
5 0
3 years ago
What is the common difference or common ratio of the sequence 2, 5, 8, 11, ...?
dem82 [27]
Answer: 
B. 3

Explanation: 
2 + 3 = 5 
5 + 3 = 8 
8 + 3 = 11 

This is how you find the common rate between a sequence of numbers. If you find how to get to on number, you see if it works on another, and so on. If it does, that is the rate.
7 0
3 years ago
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1. Use the number line to find the coordinate of the midpoint of segment<br> BD.
Greeley [361]

Answer:

the answer would be 9.

Step-by-step explanation:

i had this question on my test.

8 0
3 years ago
What is equivalent 14×14
galben [10]

Answer:

196

Step-by-step explanation:

14 squared is 196. if thats the answer your looking for

4 0
3 years ago
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What is the means-to-MAD ratio of the two data sets, expressed as a decimal?
Ksenya-84 [330]
I think the answer is 1.2
7 0
3 years ago
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