Answer:
200 words are peter can be type in 5 minutes.
Step-by-step explanation:
As given
If peter can type 80 words in 2 minutes .
i.e
80 words = 2 minutes
Now words type in 1 minutes.

1 minutes = 40 words
Now calculate number of words are type in 5 minutes.
Words are type in 5 minutes = Number of minutes × Number of words are type in 1 minutes.
Number of minutes = 5 minutes
Number of words are type in 1 minutes = 40 words
Words are type in 5 minutes = 5 × 40
= 200 words
Therefore 200 words are peter can be type in 5 minutes.
we have

Equate the expression to zero to find the roots

Group terms that contain the same variable, and move the constant to the opposite side of the equation

Factor the leading coefficient

Complete the square. Remember to balance the equation by adding the same constants to each side.


Rewrite as perfect squares


square roots both sides


the roots are


so

therefore
<u>the answer is the option</u>

The percent markup is 40% cost: $2.50/hammer *40%=1.00 Cost+markup=3.50
I'm taking the liberty of editing your function as follows: <span>w=4r^2+6s^2, where I use " ^ " to indicate exponentiation.
The partial of w with respect to r is 8r. That with respect to s is 12s.</span>