Answer:
Step-by-step explanation:
Given
Required
The vertex
We have:
First, we express the equation as:
Where
So, we have:
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Take the coefficient of x: -1
Divide by 2: (-1/2)
Square: (-1/2)^2
Add and subtract this to the equation
--------------------------------------------
Expand
Factorize
Factor out x - 1/2
Compare to:
Hence:
A is the answer domain is the x
Answer: 2√ 10
Step-by-step explanation:
Answer:
Step-by-step explanation:
you need to cancel out the brackets by multiplying -2.3 with every thing inside the brackets
Answer:
Step-by-step explanation:
The weighted average of the student's scores is ...
0.20×63 +0.05×97 +0.35×85 +0.40×77 = 78
The student's overall final score is 78.
__
The letter grade earned is between 70 and 80, so is a C.
