1. the equation of a circle is (x + 4)2 + (y – 6)2 = 48
what is the center of the circle?

what is its radius (round to the nearest tenth)?

Center of circle = (-4,6)

Radius = 6.9

Step-by-step explanation:

Formula of a circle:

Center of circle = (a, b)

Radius= c

Your question is:

a= - 4 because - (-4) will only equal to 4

b= 6 because - (6) will only equal to - 6

If (a, b) is the center of the circle, thus (-4,6) is the center of the circle.

To find the radius.

If c = radius.

Note: Please use a calculator when finding the radius.

Thus to the nearest tenth

c= 6.9

Thus the radius is 6.9

i dont know men

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.