Answer:
Answer D) pass through points Y and A.
Step-by-step explanation:
I took the test and got it right, if you use my answer and get it wrong. You have a different question, I used the guys answer above and it was incorrect.
For this case, the first thing we must do is define a variable:
x: number of hours
y: number of trials
We write the equation that represents the problem:
y = (25/4) x
For 35 essays we have:
35 = (25/4) x
Clearing x:
x = 5.6 hours
Answer:
it will take him to grade 35 essays about:
x = 5.6 hours
the constant of this variation is:
25/4 essays / hour
Answers: 1:B, 2:450
How-To:
Using the formula for area on the bottom of the can, (pi*r^2) you can then multiply by the amount of height missing, which is 4.
Since it was originally 10, you subtract 4 in order to get 6.
That's how to get 4.
Now, plug in pi*r^2 into a calculator (or if you must work it out, radius, r, is 10, so 10*10 is 100. 100*3.14159265 is 314.159265
Now multiply 314 by the height missing (4) to get approximately 1257.
Now for number 2.
It says it is dilated by a scale factor of 1:3 (from 1350). That means that it was made smaller, (that's what dilated means) by 3 for every 1. So take 1350 and divide it by 3 to get 450
Answer:
4.5 Ft
Step-by-step explanation:
1/4(18)= 4.5 Ft
0.25(18)=4.5Ft
