Answer:c=5
Step-by-step explanation:
Answer:
C, 180 miles/ 3 hours
Step-by-step explanation:
C is the correct answer because you need to find the unit rate of all of the numbers.
A. = 30 mph
B. = 45 mph
C. = 60 mph
D. = 40 mph
Therefore, C is the fastest.
The number of minutes that Claudia studied is 9 times the number of minutes Crystal studied.
Solving for the polynomial function of least degree with
integral coefficients whose zeros are -5, 3i
We have:
x = -5
Then x + 5 = 0
Therefore one of the factors of the polynomial function is
(x + 5)
Also, we have:
x = 3i
Which can be rewritten as:
x = Sqrt(-9)
Square both sides of the equation:
x^2 = -9
x^2 + 9 = 0
Therefore one of the factors of the polynomial function is (x^2
+ 9)
The polynomial function has factors: (x + 5)(x^2 + 9)
= x(x^2 + 9) + 5(x^2 + 9)
= x^3 + 9x + 5x^2 = 45
Therefore, x^3 + 5x^2 + 9x – 45 = 0
f(x) = x^3 + 5x^2 + 9x – 45
The polynomial function of least degree with integral coefficients
that has the given zeros, -5, 3i is f(x) = x^3 + 5x^2 + 9x – 45
