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polet [3.4K]
4 years ago
8

2. The equation of a circle is x^2 + 2x + y^2 + 6y = 0.

Mathematics
1 answer:
pentagon [3]4 years ago
8 0
Answer:

a)
{x}^{2}  + 2x +  {y}^{2}  + 6y = 0
{x}^{2}  + 2x + 1 +  {y}^{2}  + 6y + 9 = 10
{(x + 1)}^{2}  +  {(y + 3)}^{2}  = 10
b)
center I(-1;-3)

radius = \sqrt{10}
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To make a sports drink for the football team, Jaylen filled \dfrac9{10}
Scilla [17]

The total gallons of sports drink Jaylen made using 9/10 of a large cooler with water and 6 cups of sports drink concentrate is 3.75 gallons

<h3>Total gallons</h3>

  • Water in the large cooler = 9/10

Space remaining = 1 - 9/10

= 10-9 / 10

= 1/10

1/10 = 6 cups

  • Total gallons of sport drink = x

6 cups / total = 1/10

6 × 10 = total × 1

60 cups = total

Cups to gallons:

16 cups = 1 gallon

Total gallons of sport drink, x = 60 cups / 16

= 3.75 gallons

Complete question:

To make a sports drink for the football team, Jaylen filled 9/10 of a large cooler with water. Then, he filled the remaining space with 6 cups of sports drink concentrate. How many gallons of sports drink did Jaylen make?

Learn more about total gallons:

brainly.com/question/26007201

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3 0
2 years ago
catering company uses a linear function to determine the total cost of parties. The following table shows the costs for dinner p
irakobra [83]

Answer:

It would be $870 because you have to add 315+555=870

6 0
4 years ago
Read 2 more answers
What is the difference of the fractions? Use the number line and equivalent fractions to help find the answer.
tresset_1 [31]

Answer:

-3/4

Step-by-step explanation:

change them to improper fractions

-5/2 - (-7/4)

now multiply -5/2 by two so the denominators are the same

-10/4 - (-7/4)

subtracting a negative number is the same as adding a positive number

-10/4 + 7/4

= -3/4

5 0
3 years ago
Read 2 more answers
Hey guys please help!!
Advocard [28]

Answer:

<em>Yes</em>

Step-by-step explanation:

g(x) = - \frac{1}{4} x + \frac{1}{4}

y = - \frac{1}{4} x + \frac{1}{4} ....... <em>(1)</em>

<em>(1)</em> × 4

4y = - x + 1

x = - 4y + 1

y = - 4x + 1

f(x) = - 4x + 1

∴ f(x) and g(x) <em>are inverses</em>

8 0
3 years ago
Help would be appreciated.
Ket [755]
Frequency=(speed of sound)/(wavelength)
that means
wavelength =(speed of sound )/(frequency)
speed of sound=344 m/s

4.
frequency=587. 33 Hz
thus
wavelength=344/587.33
=0.586 m


5.
frequency=493.88 nHz
thus
wavelength=344/493.88
=0.69653 m

6. Frequency= 698.46 Hz
wavelength= 344/698.46
wavelength=0.4925 m

9. Frequency =783.99 Hz
wavelength=344/783.99
wavelength=0.439 m
5 0
3 years ago
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