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Citrus2011 [14]
3 years ago
13

What is the equation of the least squares regression line for the data set?

Mathematics
1 answer:
natita [175]3 years ago
4 0

Answer:

y=−2.984x+112.38

Step-by-step explanation:

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he works 7 hours each day

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Pedro is doing math exercises from a software program he recently purchased. In the program, you have to get at least 70% of the
Nookie1986 [14]
The inequality would be
0.75q ≥ 0.70(q+1)

q is defined as the number of questions he answers after the first one.  We are told he gets 75% of those correct; 75%=75/100=0.75.  This gives us 0.75q.

Since he gains proficiency on the exercises, the total number he gets correct has to be at least 70%.  This means the inequality would have the symbol greater than or equal to, as it cannot be less and have him gain proficiency.

He has already answered 1 question and answers q more; this gives us a total of q+1.  Since he gains proficiency, the cutoff was 70%; 70%=70/100=0.70.  This gives us the expression 0.70(q+1).

Our total inequality would then be 0.75q ≥ 0.70(q+1)
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Given 7x2 + 3y2 - 42x + 6y - 39 < 0, which graph represents the inequality?
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B

Step-by-step explanation:

cause it is

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Find the general solution of the differential equation and check the result by differentiation. (Use C for the constant of integ
tensa zangetsu [6.8K]

Answer:

y=3t^9+C

Step-by-step explanation:

Given:  \dfrac{dy}{dt}=27t^8

We want to obtain the general solution of the given differential equation.

dy=27t^8$ dt\\$Take the integral of both sides\\\int dy =\int 27t^8$ dt$\\y=\dfrac{27t^{8+1}}{8+1} +C$, (where C is the constant of integration)$\\y=\dfrac{27t^{9}}{9} +C\\\\y=3t^9+C

The general solution of the differential equation is: y=3t^9+C

CHECK:

\dfrac{d}{dt} y=\dfrac{d}{dt}(3t^9+C)=\dfrac{d}{dt}(3t^9)+\dfrac{d}{dt}(C)\\\\\text{Since derivative of a constant is zero}\\\\\dfrac{dy}{dt}=27t^{9-1}\\\dfrac{dy}{dt}=27t^8

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GUYS PLEASE SOMEBODY ANSWER THIS AS QUICK AS POSSIBLE I WILL GIVE YOU 50 POINTS
sergiy2304 [10]

Answer:

part A: 30,000 is more

Step-by-step explanation:

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