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3241004551 [841]
2 years ago
15

JUST REPOSTING THIS QUESTION UNTIL I GET A CORRECT ANSWER lol!

Mathematics
1 answer:
yawa3891 [41]2 years ago
4 0

Answer:

3x+(8x+15=180

3x+8x+15)=180

11x+15=180

11=180-15

11x=165

x=165/11

x=15

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Points B and B' have symmetry with respect to P. Find the coordinates of P when B is (2, 8) and B' is (2, 2). A. (2, 5) B. (0, 5
Alecsey [184]

Answer:

A. (2, 5)

Step-by-step explanation:

If B and B' have symmetry, then P is a midpoint between those points. We can determinate the location of point P by using the midpoint equation, whose vectorial form is:

P(x,y) = \frac{1}{2}\cdot B(x,y)+\frac{1}{2}\cdot B'(x,y) (Eq. 1)

If we know that B(x,y) = (2,8) and B'(x,y) = (2,2), then the location of P is:

P(x,y) = \frac{1}{2}\cdot (2,8)+\frac{1}{2}\cdot (2,2)

P(x,y) = (1, 4)+(1,1)

P(x,y) = (2, 5)

Which corresponds to option A.

7 0
3 years ago
Find the slope please
tamaranim1 [39]

Answer:

slope = 2/5

Step-by-step explanation:

The rise is 2

The run is 5

8 0
2 years ago
What is the slope of the line that passes through the points (-3,2) and (-1,-5)
Oduvanchick [21]

Answer:

m = -7/2

Step-by-step explanation:

(y2-y1) / (x2-x1)

->

(-5 - 2) / ( -1 -3)

= -7/2

hope that helps :D

7 0
2 years ago
PLEASE HELP. I don’t get it at all and I’d really appreciate it. Thank you!
White raven [17]

Answer:

was this the whole question cause it depends on what the plane is

Step-by-step explanation:

3 0
2 years ago
If f(x) = -x^3 + 2x^2 - 3, find f(2).<br><br> A) -19<br> B) -3<br> C) -1<br> D) 5
AfilCa [17]

Answer:

B

Step-by-step explanation:

To evaluate f(2) substitute x = 2 into f(x), that is

f(2) = - (2)³ + 2(2)² - 3 = - 8 +2(4) - 3 = - 8 + 8 - 3 = - 3

7 0
3 years ago
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