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Tomtit [17]
3 years ago
11

Complete the square to find the standard form for this circle: x^2 + 4x + y^2 + 16y - 20 = 0​

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

Step-by-step explanation:

x² + 4x + y² + 16y - 20 = 0

(x² + 4x + 4) + (y² + 16y + 64) - 4 - 64 - 20 = 0

(x + 2)² + (y + 8)² = 88.

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Betty sets up a lemonade stand and charges $1 per glass. It cost her $50 to set up the stand. Which function gives the profit, p
Maksim231197 [3]
If you would like to find the function that gives the profit Betty makes by selling a number of glasses of lemonade, you can find this using the following steps:

p ... profit
g ... glasses of lemonade

f(g) = p = g * $1 - $50

The correct result would be f(g)<span> = g * $1 - $50.</span>
5 0
4 years ago
Read 2 more answers
Select the three equations that pass through the points (-4, -16) and (5,2).
dezoksy [38]

Answer:

The equation of the line is y-2 = 2(x - 5), that passes through points (-4, -16)\ and\ (5,2)

Step-by-step explanation:

Given points are (-4, -16)\ and\ (5,2)

We need to write the equation of the line that passes through these points

First, we will find slope of this line

m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{2-(-16)}{5-(-4)}\\\\m=\frac{2+16}{5+4}\\\\m=\frac{18}{9}=2

So, our slope is 2. Now, we will plug the point (5,2) in the equation below.

(y-y_1)=m(x-x_1)\\y-2=2(x-5)\\

So, the equation of the line is y-2 = 2(x - 5).

5 0
4 years ago
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Which is a true statement? A. -15 &gt; -5 B. -4 &gt; 0 C. -12 &lt; -3 D. 2 &lt; -5
Svet_ta [14]
The true statement is C -12 < -3
6 0
4 years ago
Read 2 more answers
Lena and 3 of her friends bought just enough food to go on a 12- day camping trip. Pete and Jane surprised them by showing up at
bekas [8.4K]

The number of people increased by 2.

This means as a ratio it is now 6/4 as many as originally planned.

6/4 can be reduced to 3/2.

The time and the number of people are inversely proportional, so the food would last 2/3 ( inverse is flipping the original ratio over) the original length of time.

This means the length of time the food lasts is reduced by 1/3, which is 33.3%

4 0
3 years ago
F
kati45 [8]

Answer:

56

Step-by-step explanation:

F ∝ a

72 ∝ 9   write this using = :

72 = k9  find k

72/9 = 8

so: if a is 7

7 x 8 = 56

5 0
3 years ago
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