Arla and Bree are twin sisters. Arla is very competitive with Bree in math class, and always wants to do twice as many math problems as her sister Leta and brepresent the number of math questions Alla and Bree complete respectively

d 192

step-by-step explanation:

we find our area to find area we multiply thoses numbers to get our answer so our area is 192

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.

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)

graph them on a graphing calculator, press 2nd trace. select intersect. hit enter until it says answer. ti 84 works best

step-by-step explanation: