In the following equations, t represents time in hours and m represents mass in mf. Which of them (if any) would have a mass less than 50 mg after 2 hours? Select all that apply.

a. y= 100(0.5)^x
b. y= 500 (0.3)^x
c. y= 80(2)^x
d. y=10(1.2)^x
e. y=30(1.5)^x
f. y=80(0.2)^x
g. y=100(2)^x

a, b, d and f

Step-by-step explanation:

To find which equation will have a a mass less than 50 mg after 2 hours, we just need to use the value of x = 2 and then verify if the values of y are less than 50:

a. y = 100*(0.5)^2 = 25 -> apply

b. y = 500*(0.3)^2 = 45 -> apply

c. y = 80*(2)^2 = 320 -> doesn't apply

d. y = 10*(1.2)^2 = 14.4 -> apply

e. y = 30*(1.5)^2 = 67.5 -> doesn't apply

f. y = 80*(0.2)^2 = 3.2 -> apply

g. y = 100*(2)^2 = 400 -> doesn't apply

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

da freeck kinda math is this just drop out

step-by-step explanation: