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nalin [4]
3 years ago
12

MATH

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
4 0

Answer:

1. x = 86

2. x = 31

3. x = 64

4. x = 29

Step-by-step explanation:

1. 2x + 8 = 180

-8 -8

2x = 180 (divide both sides by 2 to get x by itself)

2. 3x - 3 = 90

+ 3 +3

3x = 93 (divide both sides by 3 to get x by itself. you divide because 3x is multiplying and you have to do the reverse operation)

3. 2x -5 + x - 7 = 180 (you combine like-terms)

3x -12 = 180

+12 +12

3x = 192 (you divide by 3 on both sides)

4. x + 1 + x + 4 + x - 2 = 90 (combine like-terms)

3x + 3 = 90

-3 -3

3x = 87 (divide both sides by 3)

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Line XY is perpendicular to line CD at D. Which conclusion can be drawn?
guapka [62]
I have attached the choices given for this question

Answer:
measure angle XDC = 90 degrees

Explanation:
The term "perpendicular" implies that the angle formed between the two lines is 90 degrees.
These two lines do not have to be equal in length, they just intersect forming a 90-degree angle.

Comparing the explanation with the given choices, we would find that the only correct choice is:
measure angle XDC = 90 degrees

Hope this helps :)

8 0
4 years ago
A rectangular prism has a length of 8 in., a width of 4 in., and a height of 2 1/4 in.
Zanzabum
Before you do anything, you convert 1/4 into 0.25. Then you start multiplying. If you don't understand email me at [email protected] or go to Khan Academy .
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4 years ago
Which of the following statements cannot be assumed from the diagram?
mrs_skeptik [129]

Answer:

Can you give me any more context?

5 0
4 years ago
What is the answer to this question?
ser-zykov [4K]
The answer to this is a
4 0
4 years ago
Quick algebra 1 question for 10 points!
hram777 [196]

Answer:

B {3/2, -5/3}

Step-by-step explanation:

6x² + x - 15 = 0

6x² + 10x - 9x - 15 = 0

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x = -5/3  or  x = 3/2

Answer: B {3/2, -5/3}

3 0
2 years ago
Read 2 more answers
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