Answer:
yes, giving treatment A to half the group and treatment B will help compare them to see which one is better
Step-by-step explanation:
Hi!
He has 25% of the bottle left.
Knowing he drank 21 oz. out of a 28 ox. bottle, he has 7 oz. left.
We want to know the answer to: <em>7 is what percent of 28?</em>
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To do this, we simply take 7 and divide it by 28. 7/28 is 1/4, which can be represented by 0.25
0.25 as a percent is 25%.
Answer:
The diameter is 56.02
The radius is 28.01
Step-by-step explanation:
This is the formula that I used.
d=C
/π
Diameter = 176
π ≈ 56.02254
Answer:
y=50x+0
Step-by-step explanation:
y=mx+b is y-intercept form
I will make x= hours and y= distance (miles)
every 1 you add to x has to represent 50 miles
for the y intercept, it was unspecified so I assumed 0
Hope this helps :)
Answer:
Step-by-step explanation:
We will let the x coordinates be the temp and the y coordinates by the number of chirps. Our coordinates then will look like this:
(60, 84) and (85, 184). If this is linear, then first we will find the slope of the line which will tell us, in the context of this problem, how many chirps a cricket gives per 1 degree of temp increase.
The slope formula is:
and filling in our numbers:
This means that for every 1 degree temp increase, a cricket will give 4 chirps. That's the m value in y = mx + b. Now we will pick one of the coordinates, doesn't matter which one, and use those x and y values in the point-slope form of a line to get the equation. I will choose (60, 85), just because. Using the other point will give you the exact same line equation, I PROMISE!
Using 85 as y1 and 60 as x1 in
y - y1 = m(x - x1) gives us
y - 85 = 4(x - 60) and
y - 85 = 4x - 240 and
y = 4x - 240 + 85 and
y = 4x - 155