If AABC is reflected across the y-axis, what are the coordinates of C?

The point C(x, y) after the reflection of the point (x,y) across  the y-axis will become:

C(x, y) → C'(-x, y)

Step-by-step explanation:

We know that the reflection of the point (x,y) across  the y-axis is

the point (-x,y).

In other words, when a shape or object is reflected across the y-axis, the y-coordinate remains the same, but the sign of x becomes the opposite.

For example,

The point C(x, y) after the reflection of the point (x,y) across  the y-axis will become:

C(x, y) → C'(-x, y)

If let suppose the coordinates of the original point C(1, 2), then after the reflection of the point C(1, 2) across  the y-axis, the new coordinates of C would be transformed such as:

C(1, 2) → C'(-1, 2)

900 degrees

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.