3 years ago

Which is an equation of a circle with center (2, -10) and radius 3?

Mathematics

1 answer:

Ilya [14]3 years ago

6 0

C.(x-2)^2+(y+10)^2=9, plug the numbers in the original formula.

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Is cos 314 positive, negative or zero

Dafna1 [17]

Cos (314) = .694 is positive

7 0

3 years ago

Write (8 x 10) + (6 x 1) +(2 x 0.1) + (7 x 0.001) with words.

aleksklad [387]

Answer:

Eight times ten plus six times one plus two times one-tenth plus seven times one-thousandth.

Step-by-step explanation:

(8 x 10) = eight times ten

(6 x 1) = six times one

(2 x 0.1) = two times one-tenth

(7 x 0.001) = seven times one-thousandth

I am not always the best with the equations to words stuff, so please comment if I am wrong!

4 0

2 years ago

Factor each expression <br> 31

katrin2010 [14]

You can’t factor 31 since it’s a prime number luv

8 0

3 years ago

A particular circle in the standard (x,y) coordinate

matrenka [14]

For any circle with Cartesian equation
$(x-a)^2 + (y-b)^2 = r^2$ ,
we have that the centre of the circle is $(a,b)$ , and the radius of the circle is $r$ .

So in the case that
$(x-5)^2 + y^2 = 38$ ,
we essentially have that
$a = 5, b = 0, r^2 = 38$ .

So the centre of the circle is $(5,0)$ , and the radius is $\sqrt{38}$ .

7 0

3 years ago

An instructor makes $15 more per hour than an assistant. If the combined hourly wage of the instructor and assistant is $65, wha

mezya [45]

X= assistant's wage
x+15= instructor's wage

Add their wages set equal to $65

x + (x + 15)= 65
combine like terms

2x + 15= 65
subtract 15 from both sides

2x= 50
divide both sides by 2

x= $25 assistant's wage

x+15= 25 + 15= $40 instructor's wage

ANSWER: (C) $25 hourly wage of assistant

Hope this helps! :)

7 0

3 years ago