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jok3333 [9.3K]
3 years ago
10

Given a function f(x)=2x^2+3, what is the average rate of change of f on the interval [2, 2+h]?

Mathematics
1 answer:
-Dominant- [34]3 years ago
3 0
-8h - 2h^2

f(2)-f(2+h) = -8h - 2h^2


Mark brainliest please
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Please help loads of points and a brainliest
mina [271]
The photos doesn’t work
7 0
3 years ago
Read 2 more answers
The points P(2,3) , Q(-1,1) and R(5,-1) are the vertices of a triangle PQR.Find the equation of the altitude of the triangle PQR
vfiekz [6]

Answer:

y = \frac{3}{4} x+ \frac{7}{4}

Step-by-step explanation:

The slope of straight line PR where P(2,3) and R(5,-1) are two vertices of triangle PQR will be = \frac{3-(-1)}{2-5} =-\frac{4}{3}

Therefore, the slope of the altitude passing through Q(-1,1) will be \frac{3}{4} {Since, the product of slopes of two perpendicular straight line is -1}

So, equation of the altitude is y=\frac{3}{4} x + c where c is a constant.

Now, putting x = -1 and y = 1 in the above equation we get  

1 = -\frac{3}{4} + c

⇒ c=\frac{7}{4}

Therefore, the equation of the altitude is y = \frac{3}{4} x+ \frac{7}{4} (Answer)

6 0
3 years ago
Is the line of best fit y=-2.9114x+40.7464 or y=-2.9114x+46.5693 ? Please help i’m in a rush!
Colt1911 [192]

Answer:

line of best fit: y = -2.9114x + 46.569

Step-by-step explanation:

Plugging in your table into Excel, it turns out that y = -2.9114x + 46.569  provides a better fit of the data points into the line.  Please see the attached image for details.

Hope this helps.

3 0
3 years ago
Angelo bought a chain that is 4 yards long. He wants to cut the chain into 5 equal-length pieces. How long will each piece of ch
olchik [2.2K]
4/5 = 0.8 yards for each piece of chain

or

1 yd is 3 ft
4 yds = 12 ft
12/5 = 2.4 ft for each piece of chain
4 0
4 years ago
What is the solution of the system of equations below?
lakkis [162]

Answer:

the answer is B  (2,1)

Step-by-step explanation:

Given the simultaneous equation

2x+3y=7 .....1\\x+y=3 ..........2\\

Using substitution method

from equation 2 :

x=3-y ....3

Substitute equation 3 into 1:

2(3-y)+3y=7

Open the bracket

2(3)-2y+3y=7\\6-2y+3y=7\\6+y=7\\y=7-6\\y=1

Substitute y=1 into x=3-y

x=3-1\\x=2

Hence the solution to the equation is (2,1)

PLEASE MARK ME AS BRAINLIEST

7 0
3 years ago
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