Step-by-step explanation:
60 cookies with 4 cups
that means 60 per 4 = 60/4 = 15
and that means that he can make 15 cookies with 1 cup.
that is clear : from 60/4 we immediately know 15/1.
and now, as we know how many cookies can be made with 1 cup, it is easy to say how many cookies can be made with 3 cups. right, 3 times a much.
so, yes, we multiply 15 by 3 and get 45 cookies as answer.
Answer:
4x^2 + 3x - 9
Step-by-step explanation:
First, add together functions R(x) and S(x). Stack them vertically and combine like terms:
R(x) = 2 - x^2
S(x) = 2x + 5
------------------
(R+S)(x) = -x^2 + 2x + 7
Now subtract the above result from Q(x):
Q(x) - (R(x) + S(x)) = 3x^2 + 5x - 2 + x^2 - 2x - 7, or 4x^2 + 3x - 9
Answer:
The domain of the function in interval notation is
Step-by-step explanation:
Let
h(t) -----> the heart rate of a runner
t ----> the time in minutes
we know that
The runner completed the 10 mile run in 112 minutes
112 minutes is the maximum time of the domain
so
The domain is all real numbers greater than or equal to 0 minutes and less than or equal to 112 minutes
In interval notation the domain is
Answer:
(x - 3) (x - 9) thus D:)
Step-by-step explanation:
Factor the following:
x^2 - 12 x + 27
The factors of 27 that sum to -12 are -3 and -9. So, x^2 - 12 x + 27 = (x - 3) (x - 9):
Answer: (x - 3) (x - 9)
All of them
the roots of thhe equaiton are the x intercept
they would be at x=5 and x=-2