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denis23 [38]
3 years ago
6

At which points are the equations y=x^2+3x+2 and y=2x+3 approximately equal

Mathematics
1 answer:
ASHA 777 [7]3 years ago
6 0

so x^2 + 3x + 2 = 2x+3

or x^2 + x  = 1


After that just use the a quadratic equation formula

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You bike 9.8 miles in 1.4 hours at a steady rate.What equation represents the proportional relationship between the x hours you
AlexFokin [52]

Answer:

The equation is \frac{x}{y}= 8

Step-by-step explanation:

Let the time for which i bike is = x hours

Let the distance traveled in x hours = y miles

Ratio of distance and time will be = x : y

I travel 11.2 miles in 1.4 hours then the ratio of time and the distance traveled will be 1.4 : 11.2 Or 14 : 112

then the ratio of distance and time will be same in both the cases

So equation will be

\frac{x}{y} =\frac{14}{112}\\\\\frac{x}{y} =8

Hence, equation representing the proportional relationship will be  \frac{x}{y}= 8

4 0
3 years ago
What is pq^5 pq^2 Greatest Common Factor????????
algol [13]
Pq^5 and pq^2

the GCF would be : pq^2
7 0
3 years ago
Bai is conducting a study on learning. When she manipulates an independent variable, it is possible that some other factor, such
nlexa [21]

Answer:

The answer is : b) a confound

Step-by-step explanation:

While manipulating, is possible that some factors like noise in the hall, can affect learning in one of the groups but not in the other.

This possibility reflects the presence of a confound.

We can define a confounding variable as an external influencing factor which results in bringing changes in the effects of a dependent and independent variable.

This variable changes the outcome of an experiment and produces useless results.

3 0
3 years ago
Suppose total benefits and total costs are given by b(y) = 100y − 8y2 and c(y) = 10y2. what is the maximum level of net benefits
olga nikolaevna [1]
Whenever you face the problem that deals with maxima or minima you should keep in mind that minima/maxima of a function is always a point where it's derivative is equal to zero.
To solve your problem we first need to find an equation of net benefits. Net benefits are expressed as a difference between total benefits and total cost. We can denote this function with B(y).

B(y)=b-c
B(y)=100y-18y²

Now that we have a net benefits function we need find it's derivate with respect to y.

\frac{dB(y)}{dy} =100-36y

Now we must find at which point this function is equal to zero.

0=100-36y
36y=100
y=2.8

Now that we know at which point our function reaches maxima we just plug that number back into our equation for net benefits and we get our answer.

B(2.8)=100(2.8)-18(2.8)²=138.88≈139.

One thing that always helps is to have your function graphed. It will give you a good insight into how your function behaves and allow you to identify minima/maxima points.


3 0
3 years ago
Help! :(<br><br> It’s in the pic :3
Harlamova29_29 [7]

Answer:

\frac{3}{2}

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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