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3 years ago

Please help! geometry probabilities

Mathematics

1 answer:

Sladkaya [172]3 years ago

6 0

You have -4,-3,-2, that is a 3 out of a total of 21 points or numbers on the number line. 3/21 is reduces to 1/7.
3 goes into 21 , 7 times. That is why it reduces to 1/7.

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How many solutions does the system have, and why?

vagabundo [1.1K]

Answer:
C. there are no solutions because the slopes are the same and the y-intercepts are different.

step-by-step explanation:
y = 2/3x - 6
3y - 2x = 9
y = 0
3(0) - 2x = 9
-2x = 9
/-2 /-2
x = -9/2 = -4.5
x = 0
3y - 2(0) = 9
3y = 9
/3 /3
y = 3
(-4.5, 3)
slope 2/3
y-intercept (0, 3)
there are no solutions because the slopes are the same and the y-intercepts are different

3 0

2 years ago

If 8x−4y=20 and 4x−8y=4, what is the value of x−y?

____ [38]

Answer:

Step-by-step explanation:

Solve the system:

8x−4y=20

4x−8y=4

Reduce the first equation by dividing every term by -2:

-4x + 2y = -10

and then combine this result with the second equation:

4x−8y=4

-4x + 2y = -10

--------------------

-6y = -6, and so y = 1.

According to the first equation, if y = 1, then 4x - 8 = 4, or x = 3.

Then x = 3 and y = 1.

So, finally, x - y = 3 - 1 = 2

5 0

2 years ago

Solve for x in the diagram below.<br> (2 +40)<br> 60°

Yakvenalex [24]

Answer:

20°

Step-by-step explanation:

x+40=60 (vertically opposite angle)

or, x=60-40

or, x=20°

7 0

3 years ago

Read 2 more answers

Find the area of the shape shown below

ra1l [238]

Answer:

18 MARK AS BRAINLIEST OR ELSE!!!!

Step-by-step explanation:

area = 1/2h(sum of bases)

area = 1/2x3(3+9)

area = 1/2 of 36

area = 18

3 0

2 years ago

QUICK!!!!!!!!!!!!!!!!!!!!!!

Y_Kistochka [10]

Answer:

(3,1)

Step-by-step explanation:

6 0

3 years ago

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Please help! geometry probabilities​

Please help! geometry probabilities