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

work out the surface area of this cylinder

Answers

Answer:

A=2πrh+2πr2=2·π·2·4+2·π·22≈75.39822

Step-by-step explanation:

PLZZZZZZZZ help me not desperate but gotta get done by today its asking this- Brian tossed a paper cup a total of 25 times and record the data below on how the cup landed.
Position of cup Open side up Closed side up Landing on side
Number of times landed in the position 3 7 15

Find the experiment probability for the following
a. Open side up:

b. Closed side up:


c. Landing on its side:

Answers

a. Open side up: 3/25
b. Closed side up: 7/25
c. Landing on its side: 15/25 or 3/5

Write answer in scientific notation

Answers

It’s 2x 10 exponent -8

A = {a,b, {a), c, {a,b)
kümesi veriliyor
Buna gore asagidakilerden hangisi A kümesinin alt
kümelerinden biri değildir?
A) (a)
C) (a, b)
D
E) (b)​

Answers

Answer:

Step-by-step explanation:

E.......................

Find a solution to the linear equation 13x+y=26

Answers

Answer:

y = -13x+26

Step-by-step explanation:

13x+y=26

y= -13x+26

Write and equivalent expression for the following expression: ab

Answers

Answer:

ab = a(b)

Step-by-step explanation:

cuz u can just add parentheses

Help pls!!! Worth 16 points!!!:)))

Answers

Answer:

18: Safe volume: s <= 115. Unsafe: s > 115.

19: 2-a, 1-b, 3-c, 4-d

20a: Justin is incorrect. 12 is a solution. 12 >= 12 is a true statement.

20b: f > 12

Step-by-step explanation:

2) 1) A 6 ft tall lawn ornament standing next to a baby elephant casts a 18 ft shadow. If the baby elephant casts a shadow that is 12 ft long, then how tall is it?​

Answers

Answer: 4 feet.

Step-by-step explanation:

Proportion from lawn ornament to its shadow = 6ft : 18ft = 1 : 3

Proportion from baby elephant to its shadow = x : 12ft

These proportions have to be equal, because if it is the same time of day, the different object's shadows will have the same proportions.

In order to solve this problem, we need to cross multiply. (Attached image)  

So, 3x = 12.

By solving this equation, we find that x = 4

The height of the baby elephant is 4 feet.

I am not a professional, simply using prior knowledge!

Note- It would mean the world to me if you could mark me brainliest!

1. The velocity of a car as it travels over a level crossing is modeled by v = t2 – 4t + 12

for 0 < t < 4 where t is the time in seconds after it reaches the crossing. When does the car reach its minimum speed? What is the minimum speed?


Show your work or strategy:





When does the car reach its minimum speed? _________________





What is the minimum speed? _________________________

Answers

Answer:

At t=2s the car  reach its minimum speed

Minimum speed=8m/s

Step-by-step explanation:

We are given that velocity of car

[tex]v(t)=t^2-4t+12[/tex]

0<t<4

Differentiate w.r.t t

[tex]v'(t)=2t-4[/tex]

[tex]v'(t)=0[/tex]

[tex]2t-4=0[/tex]

[tex]2t=4[/tex]

[tex]t=2[/tex]

[tex]v''(t)=2>0[/tex]

The velocity is minimum at t=2 s

Substitute t=2

[tex]v(2)=2^2-4(2)+12[/tex]

[tex]v(2)=8m/s[/tex]

Hence, the speed of car is minimum at t=2 se and minimum speed of car=8m/s

Find the exact length of the third side.
10
24

Answers

Step-by-step explanation:

10×10+24×24= third side ×third side

third side ×third side =100+576

third side × third side=676

third side=√676

third side=26

Find the area of the following figure:

Answers

Answer:

[tex]2688[/tex]

Step-by-step explanation:

1) Simplify 2 × 8 to 16.

[tex]16 \times 12 \times 14[/tex]

2) Simplify 12 × 16 to 192.

[tex]192 \times 14[/tex]

3) Simplify.

[tex]2688[/tex]

So, therefor, the answer is, 2688.

20. A grocer sells mangos for $4 per pound and apples for $3 per pound. The grocer starts with

45 pounds of mangos and 50 pounds of apples each day. The grocer's goal is to make at

combinations of mangos and apples that could be sold to meet the goal. List two possible

combinations

Describe all possible solutions

Answers

Complete question :

A grocer sells mangos for $4 per pound and apples for $3 per pound. The grocer starts with

45 pounds of mangos and 50 pounds of apples each day. The grocer's goal is to make atleast $300 each day. What combinations of mangos and apples that could be sold to meet the goal. List two possible

combinations

Answer:

m = 45 ;a = 40

m = 45 ; a = 45

Step-by-step explanation:

Mangoes, m = $4

Apples, a = $3

Total :

45 pounds of mangoes

50 pounds of apple

4m + 3a ≥ 300

If m = 45

a = 40

4(45) + 3(40)

180 + 120 = 300

If m = 45 ; a = 45

4(45) + 3(45)

180 + 135 = 315

Hence, 2 possible combination :

m = 45 ;a = 40

m = 45 ; a = 45

For all possible solutions :

4m + 3a ≥ 300

In AJKL, the measure of ZL=90°, JK = 7.3 feet, and KL = 4.7 feet. Find the measure
of ZJ to the nearest tenth of a degree.

Answers

Answer:

40.1°

Step-by-step explanation:

JK is the hypotenuse of the right triangle.

For angle J, KL is the opposite leg.

sin A = opp/hyp

sin J = 4.7/7.3

J = sin^-1 4.7/7.3

J = 40.1

Answer: 40.1°

the circle has been divided into 5 equal parts point point Tis the center of the circle.​

Answers

its 36 degrees i did that test

1/4 + 2/3= then times that by two

Answers

Answer

1 7/12

Step-by-step explanation:

1 7/12
step by step explanation:

Let U = {2, 3, 4, 5, 6, 7, 8}, A = {2, 3, 4, 5}, B = {2, 3, 6, 7}, and C = {4, 6, 8}. List all the members of the given set. (Enter your answers as a comma-separated list.) (A ∪ B) ∩ C

Answers

Answer:

(2,3,4,5,6,7)

6

Step-by-step explanation:

I thought I'm wrong ...

About 20 raindrops will make one milliliter. How many raindrops would you need to fill a 3.5 liter bottle?

Answers

Answer:

Step-by-step explanation:

70

One of the legs of a right triangle measures 4 cm and the other leg measures 19 cm. Find the measure of the hypotenuse. If necessary, round to the nearest tenth.

Answers

Answer:

A2 + B2 = C2, so 4 squared + 19 squared = C2, 16 + 361 = 377. 377's square root is 19.4.

Step-by-step explanation:

The measure of the hypotenuse is 19.4 cm.

Given that, one of the legs of a right triangle measures 4 cm and the other leg measures 19 cm.

What is the Pythagoras theorem?

The Pythagoras theorem which is also referred to as the Pythagorean theorem explains the relationship between the three sides of a right-angled triangle. According to the Pythagoras theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a triangle.

Let the measure of the hypotenuse be x.

Using Pythagoras theorem,

x² = 4² + 19²

⇒ x² = 16 + 361

⇒ x² = 377

⇒ x = √377

⇒ x = 19.4 cm

Therefore, the measure of the hypotenuse is 19.4 cm.

To learn more about the Pythagoras theorem visit:

https://brainly.com/question/21926466.

#SPJ2

caleb got $60 for birthday and put it in savings account. after he deposited money, he now has $139 write an equation and show work

Answers

Answer:

Equation 60+x=139 and the answer is x=79

Step-by-step explanation:

60+x=139

139-60=x

79=x

x=79

Hope this helps! :)

PLEASE HELP ME PLSSSSS!!! The question is on the photo!!!

Answers

Answer:

unit of cubes in a three dimension figure

tom and ben ordered a pizza for lunch. they each ate 1/3 of the pizza. how much pizza was eaten and how much pizza was left?

Answers

Answer:

they ate 1/3 and thrte is 2/3 left

Step-by-step explanation:

subtraction

One-third of the pizza will be left

Proportions and Ratios

Let the total amount of pizza eaten be "x

Amount of pizza ate by Tom is 1/3 xAmount of pizza ate by Ben is 1/3 x

Total pizza ate = x/3 + x/3

Total pizza eaten = 2x/3

Amount of pizza left = x - 2x/3

Amount of pizza left = (3x-2x)/3

Amount of pizza left = x/3

Hence one-third of the pizza will be left

Learn more on ratio and proportion here: https://brainly.com/question/21602143

write 8z + z - 5 - 9z +2 in simplest form

Answers

You have to use PEMDAS to answer. So I believe that it is -3. Explanation the 8Z +Z is 9Z. Then it cancels out because of the -9z. So now you must and be -5+2 which is three

Ken, the camp cook, makes 3 meals for every camper. The
equation y 3x shows the number of meals he makes,
which depends on the number of campers.
Select the graph with the correctly labeled axes for this situation.

Answers

Answer: number of meals on the left side then number of campers on the bottom

Step-by-step explanation:

A p e x and it says 3 meals for every camper it never said how long so it’s not going to be so the graphs with day in it next you can’t put campers on the side cause if you don’t have enough meals for everyone you ant goin keep the campers happy so that’s how I got my answer sorry if that was confusing brainless please

Answer:is D

Step-by-step explanation:

What is the slope of the line that passes through the points (2, -3) and (5, 1)

Answers

Answer:

Answer is (4) 4/3

Step-by-step explanation:

[tex]\frac{1- -3}{5-2}[/tex]

[tex]\frac{4}{3}[/tex]

Answer:

slope is 4/3

Step-by-step explanation:

1-(-3)/5-2

4/3

What is the percent of decrease from 1,000 to 90?

Answers

Answer:

91%

Step-by-step explanation:

Hope I helped:)

91% because percent decrease = starting value-final value/starting times 100

Estimate the solution of the equation to the nearest integer, z² = 85.
A. 7
B. 8
C. 9
D. 10

Answers

square root of 85 is 9.21 thus it’s C. 9

Last Year
5. The frequency table shows the scores from rolling a dice 10 times.
Score Frequency
1 2
2 2
3 1
4 0
5 3
6 2
work out the mean

Answers

Answer:

3

Step-by-step explanation:

The computation of the mean is shown below:

= Total sum ÷ number of observations

= (1 + 2 + 2 + 2 + 3 + 1 + 4 + 0 + 5 + 3 + 6 + 2) ÷ 12

= 31 ÷ 12

= 2.58

= 2.6

= 3

converd improper fraction into mixed fraction 3/20​

Answers

Answer:

Cannot be written as a mixed number

Step-by-step explanation:

Since 3/20 is a proper fraction, it cannot be written as a mixed number.

1/4 + 2/3 = equals what

Answers

The answer to your question is 11/12
1/4 + 2/3 = 11/12 because you need to find the common denominator which is 12. You have to multiply 1/4 by 3 to get the denominator of 12, so it becomes 3/12. Then, you have to multiply 2/3 by 4 to get the denominator of 12 which gives you 8/12 so you add 3/12 + 8/12 and you get 11/12.

PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS HELP I MEAN SOS ITS MAJOR! btw there r two questions

Answers

okay so one is 12 and two is A,B, D
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