28. Mrs. Belland's science class does an experiment on bacteria. They find that the growth rate G of
bacteria can be modeled by G(t) = 8210-25 and
the death rate D is D(t) = 10.810.25, where t is
time in hours. Which function N shows the total
number of bacteria living at any one time t?
a. N(t) = 10.8+0.25 + 82+0.25
b. N(t) = 10.8+0.25 – 82+0.25
c. N(t) = 8210.25 + 10.8+0.25
d. N() = 82925 – 10.80.25

answer: download photomath it's legit.

step-by-step explanation:

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)

the answer i believe is 27 units.

step-by-step explanation: