WILL GIVE BRANLIEST!! PLEASE HELP

a(t)= t^2/2 - 20t + k

There was a 50-day period when the number of ants in a certain hill could be modeled by the function “a” above. In the function, “k” is a constant and a(t) represents the number of ants on day number “t” for 0 ≤t ≤49. On what day was the number of ants in the hill the same as it was in day 10?

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

m=-16

step-by-step explanation:

85.3-64 = 21.3

so laura has already added 85.3 grams of chocolate powder and she has gone over the amount specified in the recipe by 21.3 grams

hope i ! have a great  day!

σк тнє αиѕωєя ιѕ (α.)

нσρє ι ¢συℓ∂ нєℓρ υ