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Serga [27]
3 years ago
11

Hope you can read those plz help me

Mathematics
1 answer:
Annette [7]3 years ago
6 0

the answer to the first question is B

the answer to the second question is also B i think


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Evaluate 5x3 - 21 + 7 when x = -2.
Sliva [168]

Answer:

26

Step-by-step explanation:

5x³ - 21 + 7

x = 2

then:

5x³ - 14

5*2³ -14

5*8 - 14

40 - 14

26

8 0
3 years ago
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How do I solve this equation to get the solution?<br><br> y= -2x - 1<br><br> -3x + 6y = 24
swat32
There are a few ways to solve this. The method I will use is the substitution method. Since they give us a "y = " statement, we can replace the y in the second equation with what it gives us to the right of the equal sign.

- 3x + 6(- 2x - 1) = 24

Simplify by using the distributive property. 

- 3x + 6(- 2x) + 6(- 1) = 24
- 3x - 12x - 6 = 24.

Combine like terms

- 15x - 6 = 24

Add 6 to each side.

- 15x = 30

Divide both sides by - 15 to isolate variable X

x = 30 / - 15
x = - 2.

Now plug in the x-value we've found back into the first equation.

y = - 2( - 2) - 1
y = 4 - 1
y = 3

Your answer is (- 2, 3)
6 0
3 years ago
Which of the following statements incorrectly describes the line segment XY?
sveta [45]
Correct answer is C.

There are infinitely many possible paths between X and Y.
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3 years ago
Which equation is best represented by the graph below?
Blababa [14]
Hi, i would love to help you but there is no graph below :(
6 0
2 years ago
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[Help Asap, Will Mark Brainliest] Angle JKL is a right angle. The measure of angle JKM is 25 degrees. The measure of angle MKL i
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I hope I’m not wrong, but I think it’s 65
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