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zysi [14]
3 years ago
10

the graph of a quadratic function f passes through the origin and the maximum value of f is 5 when x=4 find f

Mathematics
1 answer:
Hitman42 [59]3 years ago
7 0

Answer:(-5/16)x^2 +(5/2)x

Step-by-step explanation:

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The data below show the numbers of miles driven to work each day by the employees of a small company 15, 25, 13, 15, 18, 20, 22,
Varvara68 [4.7K]

Answer:

The mean absolute deviation is 3.75

Step-by-step explanation:

Given:

Miles travel: 15, 25, 13, 15, 18, 20, 22, 24

Mean: 19 miles

Required:

Mean absolute deviation.

Given that the mean of the data is known, we start by subtracting the mean from each dataset

15 - 19 = -4

25 - 19 = 6

13 - 19 = -6

15 - 19 = -4

18 - 19 = -1

20 - 19 = 1

22 - 19 = 3

24 - 19 = 5

Then we calculate the absolute value of each

|-4| = 4

|6| = 6

|-6| = 6

|-4| = 4

|-1| = 1

|1| = 1

|3| = 3

|5| = 5

Add up these result;

4 + 6 + 6 + 4 + 1 + 1 + 3 + 5

= 30

Divide by number of data, to give mean absolute deviation (MAD)

MAD = 30/8

MAD = 3.75

Hence, the mean absolute deviation is 3.75

7 0
4 years ago
Which of the options below shows an expression that will correctly solve the following question?
aleksandr82 [10.1K]

Answer:

Solution,

length(l)=27km

Area(A)=212km²

Now As we have,

Area=lxb

212km²=27kmxb

b=212km²/27km

b=7.85km

Step-by-step explanation:

Since we have to divide the area by length to get the width. So, option C is correct.

5 0
3 years ago
Write a quadratic function f whose zeros are 3 and -10.<br> f(x) =
andreyandreev [35.5K]

Answer:

f(x)= x^2 + 7x - 30

5 0
4 years ago
PLEASE I NEED HELP
9966 [12]
The general equation of the circle is:

(x-h)^{2} +(y-k)^{2} =r^{2}

(h,k) is the center of the circle and r is the radius. We are given the coordinates of the center. So we can write the equation of the circle as:

(x+4)^{2} +(y+3)^{2} =r^{2}

In order to complete the equation, we need the radius of the circle. Using the given point we can find the radius. Using the point in the above equation, we get:

(6+4)^{2}+(2+3)^{2}=r^{2} \\  \\ &#10;100+25=r^{2}

Thus the value of r² is 125. Using the value in equation of the circle, we get:

(x+4)^{2} +(y+3)^{2} =125

The radius of the circle is √125.
8 0
4 years ago
Read 2 more answers
Simplify the Expression<br> - 1/2 (8b+3)+3b=
Anna35 [415]

Answer:

-b -3/2

Step-by-step explanation:

-1/2(8b+3) + 3B (a negative times a positive equals a negative)

1. Mutiply -1/2 by 8b and then by 3

(-1/2 x 8b -1/2 x 3) + 3b

-4b - 3/2 + 3b

2.  Add -4b + 3b = -b

-b - 3/2

5 0
3 years ago
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