A lab technician is using this exponential model, ​A(t)= 100e​ -0.8t ​to measure cells in a petri dish over a period of hours. (2 pts each) a. After several hours, would there be ​more​ cells or ​fewer​ cells in the petri dish?​ ​(circle one)

b. How many cells would there be after 10 hours? ​(round to the nearest hundreths)​

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.