Find the rate of change of h(x) =-x² + 4x+2 from x=3 to x=7

Answers

Answer 1

Answer:

-6

Steps:

solve for x=3

(3,5)

solve for X=7

(7,-19)

then find the slope using

[tex] \frac{y2 - y1}{x2 - x1} [/tex]

and it will be = -6


Related Questions

[tex]three times the sum of some number and 2 is equal to 15. Find the number?[/tex]three times the sum of some number and 2 is equal to 15. Find the number?

Answers

Answer:

Step-by-step explanation:

3(x+2) = 15

X+2 = 5

X = 3

3
An aeroplane flies 4200 km at a speed of 800 km/ how long is the flight​

Answers

The flight is 5.25 hours long
Hope this helps :)

PLSS HELP ME TYSMMMMM

Answers

Answer:

Picture or question???????

EARN A FAST EASY 10 POINTS JUST BY HELPING ME ASAP!!
Spiral Review "y is less than 3"

Question 1
Part A

Write an inequality that represents the sentence "y is less than 3
then Graph the inequality on the number line.

Answers

Answer:

Step-by-step explanation:

y < 3

<__|__|__|__|__|__°__|__|__|__>

   -2   -1   0   1    2   3   4   5   6

Basically, for the number line, there is an open circle on the 3 and the line goes to the left of 3.

HELP ME Write and solve a proportion to find y.

Answers

Given:

A figure of dilation and the center of dilation is O.

To find:

The value of y.

Solution:

The distance between center and vertex of image (d') is proportional to the distance between center and the corresponding vertex of original figure (d).

[tex]d'\propto d[/tex]

[tex]d'=kd[/tex]

[tex]\dfrac{d'}{d}=k[/tex]

Where, k is the scale factor or constant of proportionality.

So, the scale factor for the given dilation is

[tex]k=\dfrac{OB'}{OB}[/tex]

[tex]k=\dfrac{36}{16}[/tex]

[tex]k=\dfrac{9}{4}[/tex]

We know that,

[tex]k=\dfrac{\text{Side length of image}}{\text{Corresponding side length of original figure}}[/tex]

[tex]\dfrac{9}{4}=\dfrac{A'C'}{AC}[/tex]

[tex]\dfrac{9}{4}=\dfrac{27}{y}[/tex]

[tex]9\times y=27\times 4[/tex]

Divide both sides by 9.

[tex]y=\dfrac{27\times 4}{9}[/tex]

[tex]y=3\times 4[/tex]

[tex]y=12[/tex]

Therefore, the value of y is 12.

The ratio of boys to girls in Ella’s grade is 3 to 4. The ratio of boys to girls in Minh’s grade is 4 to 5. Each grade has a total of 20 girls.

Answers

Answer:

In mih's school there are 100 boys

While in Ella's school there are 80 boys

Step-by-step explanation:

X*1/5=20

X=100

X*1/4=20

X=80

Can someone tell me the formulas for this​

Answers

Answer:

square = a=x^2 x= one of the sides of the square

triangle= a[tex]=\frac{1}{2}bh[/tex] b=base h=height

circle = a=πr² π = pi r=radius

rectangle a = l * w l=length w=width

Step-by-step explanation:

hope this helps (:

On a random Friday in the fall, 95% of students were present at school. If there are a total of 420 students enrolled, then how many students were present that day​

Answers

[tex] \frac{95}{100} \times 420 = 399[/tex]

12 : 50 : :18: ? what is the answer?​

Answers

Answer:

6:25:9

Step-by-step explanation:

12:50:18

6:25:9

I think the question is asking for the ratio to be simplified, if so then that's what the answer is.

Answer:

75

Step-by-step explanation:

12 : 50 :: 18 : x

In proportion, Product of extremes  = Product of means

                       12 * x = 50*18

                             [tex]x =\frac{50*18}{12}=\frac{50*3}{2}[/tex]

                             x = 25 * 3 = 75

Latoya's piano recital started at 3:51 PM.
It ended at 5:27 PM.
How long did the recital last?
hour(s) and 3 minute(s)

Answers

1 hr 37 min (97 min)

Answer:

1 hour and 36 minutes

Step-by-step explanation:

Find the central angle measure

Answers

Answer:

No i don't know needed the point bye

Step-by-step explanation:

Using the graph below, what is f(5)?

Answers

F(5) would be the y value of where the line is when it is at x 5

The line crosses at -6.5

F(5) = -6.5

10. Walter makes a cable payment of $84 each month. Which table
represents the relationship between m, the number of months,
and c, the amount he has paid for cable for that length of time?

Answers

56=88888 min inshallah and the lions game on the lions game and the lions game on the lions game

12 of the students in the art class like to draw animals these 12 students make up 24% of the art class how many students are in the art class

Answers

Answer:

50 students in total or X=50

Step-by-step explanation: 12 is 24% of X

We can make this into a box-like figure

12  24

X   100          X is the missing number

We then multiply 12 by 100 which equals to 1,200.

We then divided the 1,200 by 24, this results in your X which equals to 50.

X=50 students

Janet is playing a game in which she interacts with an environment to solve a puzzle and to meet new characters. She really enjoys this game because there are no time constraints or pressure to perform with speed. What genre of game is Janet most likely playing?

simulation

action

adventure

sports

Answers

Answer:

adventure

Step-by-step explanation:

Answer:

adventure

Step-by-step explanation:

A spinner has five equal portions colored orange, red, blue, yellow, and green. What are the odds against spinning a red or an orange?

Answers

Answer:

2/5

the denominator is five because it says that there is five equal portions of the spinner. The numerator is too because you are trying to find the odds of getting two colors

in a bag there are 3 red marbles, 2 yellow marbles, and 1 blue marble. what are the odds of a yellow marble being selected on the first draw?.​

Answers

it is 2/6

you add all the marbles to the bottom and the yellow to the top

it’s 2/6



there are 2 yellow marbles and 6 marbles in total

See attactched pdf file (trigonometry)

Answers

Answer:

Step-by-step explanation:

∠VMC=180-90-48

          =42

∠PMV=180-22-90-42

         =26

5/sin48=VM/sin90

VM=6.728( correct to three decimal places)

6.728/sin22=PV/sin26

PV=7.873( correct to three decimal places)

one-fifth of the sum of 7 and b minus the product of 4 and m​

Answers

Answer:

7/5 + b/5 - 4m

Step-by-step explanation:

(1/5)(7 + b) - (4)(m) = 7/5 + b/5 - 4m

.) Which ordered pair shows an equivalent ratio
of pounds to dollars?
(24,30)
(20,25)
(25, 20)
(40.36)


Answers

Answer:

I think (25, 20) is your answer. hope it helps.

The equivalent ratio to (5, 4) is (25, 20). Therefore, option C is the correct answer.

What is the ratio?

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

The coordinates from graph are (5, 4), (10, 8), (15, 12) and (20, 16).

Equivalent ratios are ratios that can be simplified to the same value by dividing both the values by a common fraction.

Here,

(5, 4)=5(5, 4)=(25, 20)

(10, 8)=2(10, 8)=(20, 16)

(15, 12)=2(15, 12)=(30, 24)

(20, 16)

The equivalent ratio to (5, 4) is (25, 20). Therefore, option C is the correct answer.

To learn more about the ratio visit:

brainly.com/question/13419413.

#SPJ2

35 to 77 simplified is

Answers

Answer:

5/11

Step-by-step explanation:

35 to 77 simplified is 5/11

35 ÷ 7

---------

77 ÷ 7

Therefore, 35/77 simplified to lowest terms is 5/11.

Hope that helps

And if wrong sorry

Exercise 2
Directions: Choose the letter of the correct answer
Example:
in the expression 7 + 2 (4x5)-9, which is the last operation to do? Answer: B
A. addition B. subtraction C. multiplication D division
1. In the expression 8 + 4 x 6-12, which operation will you do first?
A. addition B. subtraction
C.multiplication D. division
2. In following the GEMDAS rule, with the expression, 5x3+9 - 4 + 2, what will be
operation to do?
A. addition B. subtraction C. multiplication D. division
In the expression, 5 x 4+ (8-2), what will be the second operation to do?
A. addition B. subtraction
C. multiplication D. division
In the expression 9 +2 x 5-3, which operation will you do last?
A. addition B. subtraction C. multiplication D. division
In the expression, 32 x 4 +2+8, which will you do first?
A. exponent B. multiplication C. division
D. additic​

Answers

1. C - multiply 4 and 6 first
2. C - multiply 5 and 3 first
3. B - subtract 8 and 2
4. B - subtract 19 by 3
5. B - multiply 32 and 4

Hope this helps

An object of mass 40kg moves with an acceleration of 10m/s2 calculate the force of the object​

Answers

Answer:

F=Mxa

Step-by-step explanation:

Therefore, Mass of 40kg x 10ms² = 400N

4. A trapezoid with bases that measure 8 inches and 11 inches has a height of 3 inches. What is the area of the trapezoid?​

Answers

Answer:

28.5

Step-by-step explanation:

Answer:

25.5 in^2

Step-by-step explanation:

the formula to calculate a trapezoid is (base 1 + base 2) * height/2

So, (8+11)*3/2

17*3/2

51/2

25.5

Find the area of the trapezoid at the right

Answers

Answer:

A = 15

Step-by-step explanation:

A = [tex]\frac{a+b}{2}h[/tex]

A = (3 + 7 ÷ 2) ÷ 3

A = 15

good luck, i hope this helps :)

The width of rectangle is the length minus 2 units. the area of the rectangle is 48 units. What is the width, units, of the rectangle?

Answers

Answer:

6

Step-by-step explanation:

W=L-2

A=L*W

48=L(L-2)

48=L^2-2L

You factor and then you get L=8

W=8-2=6

Caroline and Chase are working on math homework. They decide to race to see who can finish first. Caroline is on number 12 and can solve 1 math problem in 1.5 minutes. Chase is on number 16 and can solve 1 math problem in 2 minutes. How many minutes will it take before they are on the same problem?​

Answers

Answer:

It will take 24 minutes before they are on the same problem.

Step-by-step explanation:

Caroline is on number 12 and can solve 1 math problem in 1.5 minutes.

Per minute, she solved [tex]\frac{1}{1.5} = \frac{2}{3}[/tex] of a problem. So, after t minutes, she will be on the problem:

[tex]Ca(t) = 12 + \frac{2t}{3}[/tex]

Chase is on number 16 and can solve 1 math problem in 2 minutes.

Per minute, he solved [tex]\frac{1}{2}[/tex] of a problem. So, after t minutes, he will be on the problem:

[tex]Ch(t) = 16 + \frac{t}{2}[/tex]

How many minutes will it take before they are on the same problem?​

This is t for which:

[tex]Ca(t) = Ch(t)[/tex]

So

[tex]12 + \frac{2t}{3} = 16 + \frac{t}{2}[/tex]

[tex]\frac{2t}{3} - \frac{t}{2} = 4[/tex]

[tex]\frac{4t-3t}{6} = 4[/tex]

[tex]\frac{t}{6} = 4[/tex]

[tex]t = 24[/tex]

It will take 24 minutes before they are on the same problem.

PLEASE HELPPPP! Emily is entering a bicycle race for charity. Her mother pledges $0.80 for every 0.5 mile she bikes. If Emily bikes 8 miles, how much will her mother donate?

Answers

Answer:  $12.80

Step-by-step explanation:

:)

Answer:

$12.80 donated money if she bikes 8 miles. solved by finding out how much money she'll get in a mile add .80+.80 and get $1.60. this is way easier to set up equation instead if doing it by half mile. equation is y=1.6(x) // y is money donated, x is $1.60

Can someone help me with this I need help

Answers

b.150 inches, the area is calculated by B x H, which is 15 x 10 in this scenario

Answer:

d)550

15 * 10 = 150; 150 * 2 = 300

5 * 10 = 50; 50 * 2 = 100

5 * 15 = 75; 75 * 2 = 150

300 + 100 + 150 = 550

Which function matches the data in the table

Answers

Answer:

I can't see the table...?

Step-by-step explanation:

I will answer if you have the table.

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