What is the volume of the triangular prism below 7.8 in 6 in 5 in 11.5 in
1 answer:
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Question:
Three students were working on 630,000÷700 in math class.
a. Desiree finds the quotient is 9,000 and Micah finds the quotient is 900.
Determine which student found the correct quotient.
b. Delilah finds her answer is 90, but she copied the expression incorrectly from the board. If her reasoning and answer for the expression she copied are correct, what expression might she have written?
Answer:
a. Micah is correct
b.
Step-by-step explanation:
Given
Solving (a): Who is correct?
To do this, we first calculate the quotient of the expression.
Divide 630000 by 700
Hence:
Micah is correct
Solving (b): What Delilah must have copied?
We have:
There are no options to pick from. So, we just need to work out expressions that equals 0.
Possible expressions are:
Answer:
Axis of symmetry: x=-2
Maximum point: (-2,8)
Step-by-step explanation:
The given function is .
We can complete the square to reveal the axis of symmetry and the vertex.
We factor to get:
We add the zero pairs and obtain a perfect square:
The function is now in the form , where V(h,k) =(-2,8) is the vertex.
