All categories

3 years ago

#15. Write the equation of each circle.

Mathematics

1 answer:

frosja888 [35]3 years ago

5 0

Answer:

Step-by-step explanation:

The center is at (1,-2) from the graph.

The radius is 2 [3 - 1 on the horizontal]

The equation of the circle is

(x - 1)^2 + (y + 2)^2 = 2^2

(x - 1)^2 + (y + 2)^2 = 4

You might be interested in

What is the completely factored form of x^4+8x^2-9

miss Akunina [59]

Answer:

I think it is (x^2+9) x (x-1) x (x+1)

Step-by-step explanation:

(not sure if right but had a go)

7 0

3 years ago

Anyone can help me with my math homework please?

Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

hello,

so we know y in terms of t and x in terms of t and we need to find y in terms of x

$x=21t^2\sqrt{x}=\sqrt{21}*t \ \ as \ \ t>=0 \ \ So\\t=\sqrt{\dfrac{x}{21}}$

and then

$y=f(x)=3\sqrt{\dfrac{x}{21}}+5=\sqrt{\dfrac{9x}{21}}+5=\sqrt{\dfrac{3x}{7}}+5$

hope this helps

4 0

3 years ago

Determine the x- and y-

rjkz [21]

Answer and working out attached, hope this helps

3 0

3 years ago

Evaluate 3xy with an exponent of 2 y, if x=2 and y=5

Bogdan [553]

Answer:

145

Step-by-step explanation:

x = 2 , y= 5

Putting the values of x and y in the expression

=3(2) (5)^2-5

=3(2)(25)-5

=150 -5

=145

8 0

3 years ago

What two consecutive even integers have a sum of -66?

pshichka [43]

Answer:

the sum of 2 consecutive even integers is 66.

Step-by-step explanation:

This means that if one integers is x, the other must be either x-2 or x+2. Therefore, we can write 6=x+(×-2)=2×2. Solving for x, we can find ×=34. this means that the other integer is 34-2=32. indeed, 32+34=66, and done hope this helped C:

7 0

3 years ago

Read 2 more answers