The altitude at which we boil an egg affects how long it takes for the egg to achieve perfect hardness.

it takes 198 seconds to boil a perfect egg at the lowest place possible, the edge of the dead sea, which has an

altitude of -418 meters.

the highest place possible is the summit of mount everest which has an altitude of 8848 meters. it takes 209

seconds to boil a perfect egg there.

t(a) models the time (in seconds) it takes to boil a perfect egg at an altitude of a meters.

which number type is more appropriate for the domain of t?

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.

hope this is what you were asking for!

step-by-step explanation:

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5