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galina1969 [7]
3 years ago
6

Does this equation have exactly one solution ​

Mathematics
1 answer:
Alex73 [517]3 years ago
6 0

Answer:

13x + 7 = 9x - 33 + 4x \\ 7 + 33 = 13x - 13x \\  \\ 40 = 0 \\  \\ no

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Anybody know this answer?
icang [17]

Answer:

c. 108 degrees

6 0
3 years ago
Read 2 more answers
1. What is the simplified form of the following expression? <br><br> 12x
eimsori [14]

12x² - 3.5y + 10y + 1.5x² + y       Combine like terms

13.5x² + 7.5y

3 0
3 years ago
What is the area of a circle whose equation is (x-3)² + (y + 1) ² =81?
kupik [55]
Okay, first, given the equation, we need to find out what the radius of the circle is. Let us state the general equation of a circle: 

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

Where (x_{1}, y_{1}) is the centre of the circle. In this case, we don't need to know the centre. Just the radius. 

Let us start by converting the equation into standard for, which I typed above. Divide both sides by 81. 

\frac{(x-3)^2}{81}+ \frac{(y+1)^2}{81}=1

Great! We now know the radius of the circle. It is \sqrt{81} because it is the bottom fraction. Now we know that the radius is 9. 

So now lets input this into the area of circle formula: 

A=πr^2 

Now we insert our radius. 

A=9^2π 

=A=81π 

You can convert that into a decimal if you wish. 

Hope this helped!

~Cam943, Moderator
4 0
3 years ago
A package of pairs of insulated costs ​$. What is the unit price of the pairs of
Kobotan [32]

Answer:

$5.89 per pair

$35.34   6 pairs

$35.34/6=$5.89 per pair

4 0
3 years ago
HELP please.
Delvig [45]

Answer:

Q1: \frac{3}{4}

Q2: \frac{83}{100}

Step-by-step explanation:

Q1: 12 : 16 = 3 : 4 = \frac{3}{4}

Q2: 8.3 : 10 = \frac{83}{100}

3 0
3 years ago
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