Answer:
20
Step-by-step explanation:
The discriminant of a quadratic is the expression inside the radical of the quadratic formula.
b^2-4(ac)
Substitute in the values of a
, b
, and c
.
(-2)^2-4(1*-4)
Elevate the result to find the discriminant.
4+16
=20
Answer: (c)
Step-by-step explanation:
Given
The function is
Range of a function describes the values y can take
from the graph it is clear that the maximum value of y is 5
Hence. option (c) is correct.
Answer:
-32
Step-by-step explanation:
When using exponents, the base number is multiplied by that amount if times.
So, (-2)^5 =
-2 * -2 * -2 * -2 * -2 = -32
Hope this helps!
Answer: 178.1
(12.3x7)+(11.5x8)
86.1+92=178.1