Answer:
44
Step-by-step explanation:
5(3) +3(-5)/5 +4(3--5)
15 + -15/5 +4(8)
15 -3 +32
12+32
44
Answer:
1.80
Step-by-step explanation:
He spent 1.20 on the gum in total. 3.00-1.20=1.80
Answer:
The substance's half-life is 6.4 days
Step-by-step explanation:
Recall that the half life of a substance is given by the time it takes for the substance to reduce to half of its initial amount. So in this case, where they give you the constant k (0.1088) in the exponential form:

we can replace k by its value, and solve for the time "t" needed for the initial amount
to reduce to half of its value (
). Since the unknown resides in the exponent, to solve the equation we need to apply the natural logarithm:

which rounded to the nearest tenth is: 6.4 days
The coordinates of the point of intersection are read from the graph as ...
(3, 5).
Answer:
C
Step-by-step explanation:
I did the same question last week for a test