The height in feet, h, of a model rocket t seconds after launch is given by the equation h (t) = 3 + 70 t minus 16 t squared. The average rate of change in h(t) between t = 1 second and t = 3 second is 6. What does the average rate of change tell you about the rocket?

Answers

Answer 1

Answer:

Kindly check explanation

Step-by-step explanation:

Given the model equation:

h (t) = 3 + 70t - 16t²

h = height in feet

t = time in seconds

Average rate of change in h(t) between

t= 1 second and t = 3 second

At t = 1 second

h(1) = 3 + 70(1) - 16(1)^2 = 57

At t = 3 second

h(3) = 3 + 70(3) - 16(3)^2 = 69

Average rate of change = Δh / Δt

Δh / ΔT = [h(3) - h(1)] / (3 - 1)

= (69 - 57) / 2

= 12 / 2

= 6

Hence, it is the mean or average change in height h as time, t changes


Related Questions

what is the range of the function?​

Answers

Answer:

The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain. In plain English, the definition means: The range is the resulting y-values we get after substituting all the possible x-values.

Find the other endpoint of the line segment with the given endpoint
and midpoint. Endpoint: (-9,-5) Midpoint: (-9,0)

PLEASE QUICK I CANT LEAVE THE ZOOM UNTIL I FINISH

Answers

Answer:

(-9,5)

Step-by-step explanation:

the midpoint occurs 5 units to the right of the endpoint. using this we can deduce that the other endpoint should also be 5 units right to the midpoint

WHICH MATHS EXPERT WANT TO HELP ME ANSWER THIS QUESTION⁉️
I NEED THE ANSWERS ASAP FOR BOTH QUESTION A & B‼️‼️‼️‼️
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Answers

Answer:

alright

Step-by-step explanation:

the first question X=77

and the second is B

the other answer was correct before mine give them brainliest

Answer:

77 degrees, B

Step-by-step explanation:

the size of angle x is also 77 degrees like angle ABF because of the alternate angles theorem which states that alternate angles have the same degree measure.

A tube of toothpaste is marked $3.92 for 8 ounces. What is the price per ounce?

Answers

find one ounce $3.92/8=$0.49
$0.49 per ounce

Answer:

$0.49 hope this helps you out

You want to fence off a rectangular area of yard using the back side of your house as one of the sides. You have a total of 150 yards of fence. If the area of the fenced in portion comes to 2,812 square yards, what are the dimensions of the fenced-in area?

Answers

Answer:

L = 37 yards and B = 76 yards

L = 38 yards and B = 76 yards

Step-by-step explanation:

Given:

Total length of the fence(perimeter) = 150 yards

One side is fenced using the back side of the house

So, we have

Perimeter of the fence = 2L + W

150 = 2L + W (1)

The fenced-in portion = 2,812 square yards

Area of a rectangle = L × W

2812 = L × W (2)

From (1)

150 = 2L + W

W = 150 - 2L

Substitute W = 150 - 2L into (2)

2,812 = L × W (2)

2,812 = L × (150 - 2L)

2,812 = 150L - 2L²

-2L² + 150L - 2812 = 0

2L² - 150L + 2812 = 0

Divide through by 2

L² - 75L + 1406 = 0

Solve the quadratic equation using factorization method

Find the factors

L² - 37L - 38L + 1406 = 0

L ( L - 37 ) - 38 ( L - 37 ) = 0

( L - 37 ) ( L -38 ) = 0

L - 37 = 0 or L - 38 = 0

L = 37 yards or L = 38 yards

If L = 37 yards

B = 150 - 2L

B = 150 - (2 × 37)

= 150 - 74

= 76 yards

If L = 38 yards

B = 150 - 2L

B = 150 - (2 × 38)

= 150 - 76

= 74 yards

Therefore,

The dimensions of the fence can either be

L = 37 yards and B = 76 yards

L = 38 yards and B = 76 yards

What is the answer :((

Answers

Answer:

x + 11

Step-by-step explanation:

out you're going from -3 to 8 and that is 11 jumps so if x is -3 then it would be  x + 11

A digital video recorder (DVR) records television shows on an internal hard drive. To use a DVR, you need a subscription with a DVR service company. Two companies advertise their charges for a DVR machine and subscription service.

For what number of months will consumer pay less for the machine and subscription at easy electronics than at cable solutions



The consumer will pay less for the machine and a subscription at easy electronics then I have cable solutions if the customer uses .......... months or more


Will give brainliest

Answers

Answer: 23.333

Step-by-step explanation:

Look at the photo for explanation and answer

What is the range of the function below? y = x
A. All real numbers
B. All whole numbers
C. All real numbers less than or equal to 1
D. All real numbers greater than or equal to 1​

Answers

Answer:

Option (A)

Step-by-step explanation:

Domain of a function is defined by the x-values (input values) on the graph.

Range of a function is defined by the y-values (output values).

For a function having equation as,

y = x

Since, the given function is defined for all real numbers.

Domain of the function: {x | x ∈ R}

Range of the function: {y | y ∈ R}

Therefore, option (A) will be the answer.

Solve for u.
2 (4u-9) = 14
Simplify your answer as much as possible

Answers

Answer:

u = 4

Step-by-step explanation:

1. Distribute the 2 into the parenthesis.

2(4u-9) = 14

x2 x2

8u - 18 = 14

2. Try to get your variable on one side.

8u - 18 = 14

+18 +18

8u = 32

3. Last is to divide so your variable is on the left side of the equation.

8u = 32

÷8. ÷8

u = 4

Which of the following is an irrational number?

A. The square root of 81
B. 1.9
C. The square root of 16
D. The square root of 84

Answers

Answer:

D. The square root of 84

Step-by-step explanation:

the square root of 84 = 9.16515138991...

What is the slope of a line parallel to the line whose equation is 4 x − 2 y = − 12 4x−2y=−12.

Answers

Answer:

y=2x+3

Step-by-step explanation:

_2y=-4x-12 and than divide dy -2 so it will be Y=2x+3.

Eight more than six times a number (x) is at least thirty-two

Answers

Answer:

6(x) + 8 [tex]\geq[/tex] 32

x = 4, 3, 2, 1, 0

Step-by-step explanation:

This is the answer because:

1) 8 more than 6 times a number is 6 times x + 8

6(x) + 8

2) "is at least 32" means 6(x) + 8 [tex]\geq[/tex] 32

3) x = 4, 5, 6, 7, 8 and etc. because -8 from +8 and 32

6(x) = 24

4) 6(4) = 24

5) x can equal anything less than 4

Therefore, the inequality is 6(x) + 8 [tex]\geq[/tex] 32 and x = 4, 3, 2, 1, 0

Hope this helps! :D

The perimeter of an equilateral triangle is 63 inches. If the length of each side is (4x-3),
find the value of x.

Find the equation and solution

Answers

Answer:

4(4x-3)=63

X=4.6875

Step-by-step explanation:

Can you please help me with this?​

Answers

Answer:

3/4 and 6/5

Hope this helps!

This table shows the running time, in hours, for each of the three widget producing machines over the course of three months. Find the number of widgets produced per hour by each machine. Let x1, x2, and x3 represent widgets produced per hour for each machine.

Answers

Answer:

100 x1 + 130 x2 + 16 x3 = 4758

120 x1 + 180 x2 + 28 x3 = 6504

160 x1 + 190 x2 + 10 x3 = 6720

pt 2

x1 = 15

x2 = 21

x3 = 33

Step-by-step explanation:

From the linear system , number of widgets produced per hour for each machine are x1 = 0.015 units, x2 = 0.021units, and x3 = 0.033units.

What is linear system?

" Linear system is defined as the model of  the given system which represents set of two or more linear equations."

According to the question,

Linear system formed as per the data given,

[tex]100x_{1} +130x_{2} +16x_{3} = 4.758[/tex]                   ____(1)

[tex]120x_{1} +180x_{2} +28x_{3}= 6.504[/tex]                   ____(2)

[tex]160x_{1} +190x_{2} +10x_{3} = 6.720[/tex]                   ____(3)

Multiply linear equation (1) by 7 and ( 2) by 4 we get,

[tex]700x_{1} +910x_{2} +112x_{3} = 33.306\\480x_{1} +720x_{2} +112x_{3} = 26.016[/tex]

Subtract above linear equation to eliminate [tex]x_{3}[/tex] we get,

[tex]220x_{1} +190x_{2} = 7.29[/tex]                              ____(4)

Multiply linear equation(2) by 5 and ( 3) by 14 we get,

[tex]600x_{1} +900x_{2} +140x_{3} = 32.52\\2240x_{1} +2660x_{2} +140x_{3} =94.08[/tex]

Subtract above linear equation to eliminate [tex]x_{3}[/tex] we get,

[tex]1640x_{1} +1760x_{2} = 61.56\\\\4( 410x_{1} +440x_{2}) = 61.56[/tex]

[tex]410x_{1} +440x_{2}= 15.39[/tex]                         ____(5)

Multiply linear equation (4) by 88 and ( 5) by 38 we get,  

[tex]19360x_{1} +16720x_{2} = 641.52\\\\15580x_{1} +16720x_{2} = 584.82[/tex]

Subtract above linear equation to eliminate [tex]x_{2}[/tex] we get,

[tex]3780x_{1} =56.7[/tex]

⇒[tex]x_{1} =0.015[/tex]

Substitute the value of [tex]x_{1}[/tex] in (5) we get,

[tex]410(0.015) +440x_{2}= 15.39[/tex]

⇒[tex]x_{2} =0.021[/tex]

Substitute the value of [tex]x_{1} and x_{2}[/tex] in (1) we get,

[tex]100(0.015) +130(0.021) +16x_{3} = 4.758[/tex]

⇒[tex]x_{3} = 0.033[/tex]

Hence, number of widgets produced per hour for each machine are x1 = 0.015 units, x2 = 0.021units, and x3 = 0.033units.

Learn more about linear system here

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can someone please help me I will give you brianliest and 100 points

Answers

Answer:

20

Step-by-step explanation:

Since the triangles are similar, we can use ratios to solve

12        ?

----- = -------

3         5

Using cross product

12*5 = 3?

60 = 3?

Divide each side by 3

60/3 = 3?/3

20 = ?

The unknown side is 20

Answer:

20

Step-by-step explanation:

Since the triangles are similar, all the side lengths can be multiplied by a scale factor,

12/3 = 4, so the scale factor is 4, which

5 x 4 = 20, so the missing side length is 20

How many killograms does it takle to fill up one gummy bear

Answers

to answer this question u have to tell me the size of the bear or its not solvabal

Answer:

105.7

Step-by-step explanation:

4(z+6)=296
I will give you a Brainly

Answers

4z+ 24=296 after you distribute them , subtract from both sides then divide both by 4 and z=68

Answer:

z= 68

Step-by-step explanation:

First Step is to distribute... This simply means to remove the brackets so we have to multiply 4 by both z and 6... lets go...

4 (z + 6) = 296

4z + 24 = 296

Secondly, Send all letters on one side of the equal sign (preferrable the left) and all numbers on the other side...Just remember when ever you sending a letter or number across the equal sign, the sign of the number/letter changes... i.e it will change from positive (+) to negative (-) or vice versa... lets go...

4z + 24 = 296

4z = 296 - 24

4z = 272

z = 272/4

z = 068

Find the 18th term of the sequence
a19 = -7, d= - 17

Answers

Answer:

              a₁₈ = 10

Step-by-step explanation:

aₙ₊₁ = aₙ + d

a₁₉ = a₁₈ + d

- 7 = a₁₈ + (-17)

a₁₈ = - 7 +17

a₁₈ = 10

WILL MARK YOU BRAINLIEST NO GUESSES!!!!

Answers

C. Plot points C and D and draw a ray through them using C or D as an endpoint.

7 - 5x - 5 - 7x = 5 what is the value of x

Answers

Answer:

x is equal to negative 1/4

Step-by-step explanation:

Answer:

Negative Quarter.

Step-by-step explanation:

Simply send the letters to one side (preferrably the left) and numbers on the other side... Remember to swutch signs when you pelting the number or letter across the equal sign. i.e negative will become positive and vice versa. lets go...

7 - 5x - 5 - 7x = 5

-5x - 7x = 5 + 5 - 7

-12x = 3

x = -3/12

x = -1/4

What is 3 act modeling?

Answers

controling identifying the problem to be solved, determine the relevant information, and choose how they solve the problem. When students are given the opportunity to make choices in their classwork, they are more invested.

Find the slope of (19,-2),(-11,10)

Answers

Answer: m = -⅖

----------------------

Slope= -0.4

Explanation:

If = 9/24 = 7/x, then x is .

Answers

Answer:

x = [tex]\frac{56}{3}[/tex]

Step-by-step explanation:

Given

[tex]\frac{9}{24}[/tex] = [tex]\frac{7}{x}[/tex] ( cross- multiply )

9x = 168 ( divide both sides by 9 )

x = [tex]\frac{168}{9}[/tex] = [tex]\frac{56}{3}[/tex]

Answer:

x = 56/3

Step-by-step explanation:

Now we have to,

→ Find the required value of x.

The equation is,

→ 9/24 = 7/x

Then the value of x will be,

→ 9/24 = 7/x

→ 9 × x = 7 × 24

→ 9x = 168

→ x = 168/9

→ [ x = 56/3 ]

Hence, the value of x is 56/3.

What is the GCF of the two numbers in the expression (24 + 30)?

Answers

Answer:

6

Step-by-step explanation:

a. Yes; domain: all real numbers; range: y = 0
b. Yes; domain: all real numbers; range: y20
No; domain: all whole numbers; range: y so
d. Yes; domain: all real numbers; range: y > 0
C.

Answers

it’s c cause all the number are greater than 0

The function is also defined at x = 0 thus the domain is all real numbers and the range is y ≥ 0 thus option (b) is correct.

What is the range and domain of a function?

A function's range is the set of all values that the function accepts, and its domain is the set of all values for which the function is defined.

The domain is for the independent variable while the range is for the dependent variable.

As per the given graph.

The graph is the function of y = |x|

At x = 0 , y = 0 (defined)

And the function goes x = -∞ to ∞

Hence "The function is also defined at x = 0 thus the domain is all real numbers and the range is y ≥ 0".

For more details about the range and domain of the function,

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is 12x - 10x^5 - 7 + 3x^4 euivalent to -10x^5 + 3x^4 +12x - 7

Answers

Answer:

Yes

Step-by-step explanation:

Step 1: Define

12x - 10x⁵ - 7 + 3x⁴

-10x⁵ + 3x⁴ + 12x - 7

Step 2: Rearrange both equations into standard form

-10x⁵ + 3x⁴ + 12x - 7

-10x⁵ + 3x⁴ + 12x - 7

We see both are equivalent.

Which of the lines on the graph below cannot indicate a function

Answers

Answer:

Option C: C and D

Step-by-step explanation:

A function, as a rule, can't have multiple output for an input. Also try the vertical line test. If there is more than one point in an imaginary vertical line, then it is not a function.

If using the method of completing the square to solve the quadratic equation
x2 + 10x + 16 = 0, which number would have to be added to "complete
the square"?

Answers

Answer:

The number would have to be added is 9

Step-by-step explanation:

To find the form of the completing square of the quadratic function:

Divide the coefficient of x by 2Square the quotientSubtract the numerical term from the square of the quotient

Let us do these steps with our question

∵ x² + 10x + 16 = 0

→ Divide the coefficient of x by 2

∵ The coefficient of x is 10

∴ 10 ÷ 2 = 5

→ Square the 5

∵ (5)² = 25

→ Subtract the numerical term from 25

∵ The numerical term = 16

∵ 25 - 16 = 9

∴ We must add 9 to 16 to get 25

→ (x² + 10x + 16 + 9) - 9 = 0

→ (x² + 10x + 25) = 9

→ (x + 5)² = 9

The number would have to be added is 9

what is ?3g -6 + 2g + 1 = 11 - 8g​

Answers

Answer:

g = 16/3

Step-by-step explanation:

Answer:

g=16/13

Step-by-step explanation:  

3g - 6 + 2g + 1 = 11 - 8g

     5g   - 5  = 11  - 8g

__ +8g________+8g____

     13g   - 5   = 11

 ______+5__+5____

     13g   =       16/13

And 16 goes into 13 once same with 13 going into 16 so it can't be simplified.

your answer is g= 16/13

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