A study has shown that the daily amount of milk produced by a dairy cow is

Mathematics

1 answer:

8090 [49]2 years ago

6 0

Answer:

Step-by-step explanation:

this is more of a mind game. Lots of words to throw you off. Daily a cow produces a mean of 6.2 gallons (average of 6.2 gallons, meaning they already found the mean, "averaged" it out for you) with a deviation of .7 gallons ("give or take" .7 gallons). On any given day (throw these words out) 68% of the cows (don't need this information to answer the question either, thrown in to confuse you) will produce an amount of milk within which of the following ranges? Just subtract the deviation ("give or take number") .7 gallons from the mean (average (already determined)) 6.2 gallons which is 5.5 gallons THEN add the deviation ("give or take number") .7 gallons to the mean (average (already determined)) 6.2 gallons which is 6.9 gallons. Your answer is A 5.5 gallons to 6.9 gallons. You don't even have to go crazy on the math on this question you can rule them all out but A immediately with subtracting .7 from 6.2. Mind games .... LOL sneaky.

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Solve for x. Show your work. - 1/2x < -12

frozen [14]

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2 years ago

Read 2 more answers

What is the coefficient of n^2 in the sum of -5^4+4n^2-n+5 and 7n^4-5n^3-9n^2+3n+2

pickupchik [31]

Hello :
-5^4+4n^2-n+5 : the coefficient of n^2 is : 4
7n^4-5n^3-9n^2+3n+2 : he coefficient of n^2 is :-9

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2 years ago

help with number 2 please i have no idea how to do this. it would be very helpful if you can show the steps

zloy xaker [14]

So in this case, we have to replace the known value.
y=3
y=-2x+3

3=-2x+3

Then we leave our unknown value alone.
$\frac{3-3}{2}$ = x

In this case, our x value would be 0.

We check it...
3=-2(0)+3
3=0+3
3=3

So y=3 x=0

For the second one we have...
y=3x+2
y=-3x-4

For this we substitute the y in any of the equation...
3x+2=-3x-4

We move the unknown values to one side and the ones without unlown values to the other side...
3x+3x=-4-2

Then we solve
6x=-6

Then we leave the unknown value alone.
x= $\frac{-6}{6}$

Then solve for x.
x= -1

Then for our y value we return to one of the original equations and substitute the x value.
y=3x+2
y=3(-1)+2
y=-3+2
y=-1

y=-3x-4
y=-3(-1)-4
y=3-4
y=-1

So in this case we got that x= -1 and y= -1

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3 years ago

2. Kaleb went out to eat and spent $36. He wanted to include a 15% tip. What is

Likurg_2 [28]

Answer:

41.40

Step-by-step explanation: 36*.15=5.40, 36+5.40=41.40

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2 years ago

Solve for x for 2x+a=b

ella [17]

I hope this helps you

2x=b-a

x=b-a/2