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Natali5045456 [20]
3 years ago
5

What is the slope of the line the contains the points (-1,-1) and (3,15)?

Mathematics
2 answers:
attashe74 [19]3 years ago
7 0
The answer to this question is A
Nastasia [14]3 years ago
7 0
A.4
Hope it helps, good luck
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5 more than a number y is -2
Nata [24]

Answer:

y + 5 = -2

Step-by-step explanation:

That would be y + 5 = -2

8 0
3 years ago
You ask 125 randomly chosen students their favorite sport. There are 1300 students in the school. Based on the results of the su
yan [13]

<u><em>780 students</em></u>

<u><em></em></u>

<em>Set up a proportion.</em>

<em />

<em>75 / 125 = x/1300</em>

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<em>125  10.4 = 1300</em>

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<em>75 * 10.4 = 780</em>

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<em>x=780</em>

5 0
3 years ago
For what value of b makes this equation true? (Solve for b)<br> b +9 = -2
neonofarm [45]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>b = -11</em>

▹ Step-by-Step Explanation

b + 9 = -2

     -9   -9

b = -2 - 9

b = -2 + -9

b = -11

Hope this helps!

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7 0
4 years ago
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Find center,foci, and vertices of ellipse (x+3)^2/21+(y-5)^2/25=1
sasho [114]
I don't know if we can find the foci of this ellipse, but we can find the centre and the vertices. First of all, let us state the standard equation of an ellipse. 

(If there is a way to solve for the foci of this ellipse, please let me know! I am learning this stuff currently.) 

\frac{(x-x_{1})^2}{a^2}+ \frac{(y-y_{1})^2}{b^2}=1

Where (x_{1},y_{1}) is the centre of the ellipse. Just by looking at your equation right away, we can tell that the centre of the ellipse is: 

(-3,5)

Now to find the vertices, we must first remember that the vertices of an ellipse are on the major axis. 

The major axis in this case is that of the y-axis. In other words, 

b^2>a^2 

So we know that b=5 from your equation given. The vertices are 5 away from the centre, so we find that the vertices of your ellipse are: 

(-3,10)
 & (-3,0)

I really hope this helped you! (Partially because I spent a lot of time on this lol) 

Sincerely,

~Cam943, Junior Moderator
6 0
4 years ago
there were 260 students enrolled in a school last year and 40 teachers employed by the same school. this year the number of stud
tatiyna
The percentage change would be 4%
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4 years ago
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