Harrison plays a game in which he uses a net to catch balls that are randomly launched from holes in the ground. The height of one ball after t seconds is represented by the function f(t) = –16t2 + 20t. After how many seconds does the ball return to the ground? Round to the hundredths place as needed. seconds

Answers

Answer 1

Answer:

The ball will return to the ground after 1.25 seconds

Step-by-step explanation:

Given

f(t) = -16t² + 20t

Required

After what time (in seconds) does the ball return to the ground?

Function f(t) is a function of time and it represents the displacement of the ball.

For the ball to return to the ground, it means the displacement is 0.

So, we have f(t) = 0.

Substitute 0 for f(t) in the above, we have

0 = -16t² + 20t ---- Factorize

0 = -4t(4t - 5) ---- Reorder

-4t(4t - 5) = 0

This above expression can be splitted to;

-4t = 0 or 4t - 5 = 0

For -4t = 0,

divide through by -4

This will give t = 0

For 4t - 5 = 0,

Collect like terms

4t = 5 + 0

4t = 5

Divide through by 4

t = 5/4

t = 1.25

So, we have that

t = 0 or t = 1.25

But t can't be 0 because the ball has already traveled some distance.

So, t = 1.25

Hence, the ball will return to the ground after 1.25 seconds

Answer 2

Answer:

its 1.25....

Step-by-step explanation:

on edge, thank me later


Related Questions

Noah and Andre are 15 miles apart on a bike path when they start biking towards each other. Noah rides at a constant speed of 4 miles per hour, and Andre rides at a constant speed of 2 miles per hour. How long does it take until Noah and Andre meet?
Choose one of these answers
2 hours
2 1/2 hours
1 3/4 hours
3 hours

Answers

Answer:

2 1/2 hours

Step-by-step explanation:

multiply their rate by the number of hours

4*2=8

2*2=4

We want them to both equal 15 when added together

8+4≠15

So it's not 2 hours

So now our next answer choice is 2 1/2 hours

Ok that's easy, we can still use what we did from the last answer choice (2 hours)

Since it says 1/2 that means we can multiply the rate by 0.5 or divide it by 2

4/2=2

2/2=1

2+1=3

Now we add that to 8+4

8+4=12

2+1=3

12+3 = 15

Now that we've gotten 15 we know the rest of the answers are incorrect.

ANSWER QUICKLY PLZ :)​

Answers

The answer is (-1,1)
The solution is the point where the two lines cross each other
Hope this helps

NEED HELP FAST!!!!!!!Consider the right triangle below. A right triangle with a hypotenuse with length 6.5 feet, and side lengths of 2.5 feet and 6 feet. What is the perimeter and area of the given triangle? 8 feet, 7.5 square feet 15 feet, 39 square feet 12.5 feet, 39 square feet 15 feet, 7.5 square feet

Answers

Answer:

D. 15 feet, 7.5 square feet

I got it right on edge

i will mark as brainliest plz help......

Answers

Answer:

904.78

Step-by-step explanation:

I think, I hope this helps!!

where do i plot the shape ? please help;

Answers

Answer:

Coordinates of original figure:

(-9, 2), (-9, 7), (-7, 6), (-5, 8), (-6, 5)

Coordinates of new figure:

(1, 2), (1, 7), (-1, 6), (-3, 8), (-2, 5)

Plot these points. Then connect them to form the reflected figure.

Find the slope of a line passing through the given points. 2,5) and (4,-7) help me

Answers

-7 -5 / 4 -2 / -12/2

-12/2 = -6

Slope: -6x

5 = 2(-6) + b

5 = -12 + b

-12 + 17 = 5

Slope intercept Form: y = -6x + 17

which inequalities have no solution? check all of the boxes that apply

Answers

Answer: X>X & -4+x>-2+X

Step-by-step explanation:

Answer: A & C

Step-by-step explanation:

EDGE 2023

Josh washes cars for his neighbors to earn extra money. He charges $12 for every car he wash. Which of the following does not represent a relationship

Answers

Y=x+12
I guess!! Hope you find a better answer

Answer:

y = x + 12

Step-by-step explanation:

y= x+ 12 is the only one that does no represent the relationship because it adds x to 12, instead of multiplying x by 12, which would accurately represent the relationship

Why are coastal areas a focus of conservation efforts?

Answers

Coastal areas are a focus of conservation efforts because they support a variety of wildlife. They are also important for a number of migrating species. The loss of coastal habitats, therefore, affects a number of different species, causing conservationists to focus on their preservation.

Coastal areas are a focus of conservation efforts:  because they support a variety of wildlife. They are also important for a number of migrating species. The loss of coastal habitats, therefore, affects a number of different species, causing conservationists to focus on their preservation.

Meaning of conservation

Conservation can be defined as a process of preserving resources, habitats, culture, species etc.

conservation is very  important as it ensures the sustenance of a valuable or rare material.

In conclusion, coastal areas are a focus of conservation efforts:  because they support a variety of wildlife. They are also important for a number of migrating species. The loss of coastal habitats, therefore, affects a number of different species, causing conservationists to focus on their preservation.

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plz do this, its really important for my grade.

Answers

Answer:

B, A, C

Step-by-step explanation:

Answer:

Step-by-step explanation:

On each of those equations, combine like terms.

[tex](3x^{2}-7x +14) + (5x^{2} +4x-6)\\ 3x^{2} +5x^{2} = 8x^{2} \\-7x+4x=-3x\\14-6=8\\Your expression would be: 8x^{2} -3x+8[/tex]

This expression would be equivalent to B

[tex]( 2x^{2} -5x-3)+(-10x^{2} +2x+7)\\2x^{2} -10x^{2} =-8x^{2} \\-5x+2x=-3x\\-3+7=4\\[/tex]

Your expression would be: [tex]-8x^{2} -3x+4[/tex]

This expression would be equivalent to A

[tex]( 12x^{2} -2x-13) + (-4x^{2} +5x+9)\\12x^{2} -4x^{2} =8x^{2} \\-2x+5x=3x\\-13+9=-4[/tex]

Your expression would be: [tex]8x^{2} +3x-4[/tex]

This expression would be equivalent to C

Two variables in an experiment on lenses are related by the formula: u - v uv = 1 10 Which equation solves the given formula for v? A) v = u - 10 10u B) v = u + 10 10u C) v = 10u u + 10 D) v = 10u u - 10

Answers

Answer: C.

Step-by-step explanation:

Answer:

C) v = 10u u + 10 

Step-by-step explanation:

The solution of the equation 2X-1.7 = 9
IS X =
NEED ASAP !!!!!!!

Answers

Answer:

x=5.35

Step-by-step explanation:

2x - 1.7 = 9

2x - 1.7 + 1.7 = 9 + 1.7

2x = 10.7

2x/2 = 10.7/2

x=5.35

Hope this Helps :)

The solution of the equation 2X-1.7 = 9 is x=5.35

What is an equation?

An equation is a mathematical statement that shows that two mathematical expressions are equal.

For example, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

For example, 3x – 5 = 16 is an equation.

Given is an equation, 2x-1.7 = 9 we need to solve for x,

2x - 1.7 = 9

2x - 1.7 + 1.7 = 9 + 1.7 [addition property of equality]

2x = 10.7

2x/2 = 10.7/2 [division property of equality]

x=5.35

Hence, the solution of the equation 2X-1.7 = 9 is x=5.35

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A city manager made a scatter plot of number of retail stores in a certain cirty over years. The scatterplot had a trend like with an equation of y=11x+12, where y is the total number of retail stores and X is the number of years since 1990. Mark and his family moved to a city in 1997. How many retail stores were their in 1997

Answers

Answer: There were 89 retail stores in 1997.

Step-by-step explanation:

Hi, to answer this question, first, we have to calculate the number of years since 1990(x).

1997-1990 = 7 years

Now, we simply substitute x=7 (years) in the equation given

y=11x+12

y=11(7)+12

y=77+12

y = 89 retail stores

There were 89 retail stores in 1997.

Feel free to ask for more if needed or if you did not understand something.

Probabilities of compound

events

If you roll two fair six-sided dice, what is the

probability that both dice show an odd number?

Stuck? Watch a video or use a hint.

Answers

Rolling two dice is an example of independent events. It means that knowing the result of one die does not influence what you expect from the other.

When this is the case, the probability of the compound event is the product of the two probabilities.

Each die shows an odd number with probability 3/6=1/2, because there are three odd numbers (1, 3 and 5) out of the six possible numbers the die will show (1, 2, 3, 4, 5, 6).

So, if you multiply the probabilities of each die showing an odd number, you'll get the probability of the compound event.

I need help on this question anyone know this ?

Answers

Answer:

y = 4[tex](2)^{x}[/tex]

Step-by-step explanation:

An exponential function in standard form is

y = a [tex]b^{x}[/tex]

Use ordered pairs from the table to find a and b

Using (0, 4), then

4 = a [tex]b^{0}[/tex] ( note that [tex]b^{0}[/tex] = 1 ), so

a = 4, then

y = 4 [tex]b^{x}[/tex]

Using (1, 8)

8 = 4 [tex]b^{1}[/tex] = 4b ( divide both sides by 4 )

b = 2

y = 4 [tex](2)^{x}[/tex] ← represents the values in the table

Is (3, 4) a solution of y < 4x – 2 ?

Answers

Answer:

Yes

Step-by-step explanation:

4<10

which is true therefore it is a solution

Yes, (3, 4) is a solution of y < 4x – 2.

What is inequality?

An inequality is a relation which makes a non-equal comparison between two numbers or mathematical expressions.

here, we have,

y < 4x – 2

for (3,4),

we get,

4<10

which is true therefore it is a solution.

hence, Yes, (3, 4) is a solution of y < 4x – 2.

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In order to set a staff schedule, a fast-food restaurant manager looks at the average rate of customers served per minute during a lunch service. The manager notices that the time period starts with a sharp but steady increase, is followed by a period during which the restaurant is constantly serving the maximum number of customers per minute, and then has a slow but steady decline.

Which graph models the trend the manager notices?


ANSWER: A

Answers

The graph (A) models the trend the manager notices.

What is graph?

"It is the set of points which satisfy given function or equation or model."

What is average rate?

"It describes how much one variable, on average, changes when compared to another variable."

For given question,

The manager notices that the time period starts with a sharp but steady increase, is followed by a period during which the restaurant is constantly serving the maximum number of customers per minute, and then has a slow but steady decline.

The x-axis represents the the average rate of customers served and Y-axis represents the time.

Consider graph (A)

The graph starts with a sharp but steady increase, is followed by a constant line with maximum value (the maximum number of customers per minute), and then there is a slow but steady decline.

Consider graph (B)

The graph starts with a slow but steady increase, is followed by a constant line with maximum value (the maximum number of customers per minute), and then there is a sharp but steady decline.

Consider graph (C)

The graph starts with a sharp but steady decrease, is followed by a constant line with minimum value (the minimum number of customers per minute), and then there is a slow but steady increment.

Consider graph (D)

The graph starts with a slow but steady decrease, is followed by a constant line with minimum value (the minimum number of customers per minute), and then there is a sharp but steady increment.

Therefore, the graph (A) models the trend the manager notices.

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Is the following situation represented by a positive integer, a negative integer, or zero? Sami was sick last week and lost 2 pounds.

Positive
Zero
Negative

Answers

It’s negative bc he lost weight but I’m not sure I think it’s negative

Answer:

Negative

Step-by-step explanation:

i don’t know

Find the width of a box, that has a volume of 160,000 cubic centimeters. The length of the box is 80 cm, and the height of the box is 40 cm.

Answers

Answer:

W=50cm

Step-by-step explanation:

160000=80*W*40

Divide both sides by 80

2000=W*40

Divide both sides by 40

50=W

W=50

Segments AB, EF, and CD intersect at point C, and angle ACD is a right angle. Find the value of g. Please help me

Answers

Answer:

37 degree

Step-by-step explanation:

AB = 180 it is a straight line

ACD = 90 degree

DE+ DCB are complimentary angles they add up to 90 they dont need to be next to each other.

DE = 53 deg

DCB = 90-53= 37 degree

g = 37 and F is its vertical angle as they share the same corner point and lay opposite each other and each have same angle 37 degree.

Final answer:

Without additional information, such as a diagram or specific measurements, we can't solve the presented problem. The problem seems to involve Properties of Intersection and possibly Trigonometry. Further details or a specific diagram are needed for an accurate solution.

Explanation:

I'm sorry, but without additional information, such as a diagram, specific measurements, or the relationship involving variable 'g', we cannot solve the problem you've presented. Segments AB, EF, and CD intersecting at point C and angle ACD being a right angle, doesn't indicate how or where 'g' is related to these elements within your problem.

The principle that you seem to be dealing with is the Properties of Intersection and possibly the concepts of Trigonometry.

Should 'g' be an angle, trigonometry might be used to find its value. If 'g' is a segment, then concepts of intersection, parallel lines, or angle properties might solve it. Nevertheless, please provide further details or a precise diagram for an accurate solution.

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Sam’s business manufactures 5 times as many widgets as Mary does every hour but Sam needs to stop for a few minutes every hour and Mary does not. Mary makes 3 widgets during this time. Using the variables S for Sam and M for Mary, which equation represents this information? A) S=5M-3 B) M=S+8 C) M=5S-3 D) S= M+8

Answers

Answer:
A) S=5M-3

Explanation:

Final answer:

The equation representing the widget production relationship between Sam (S) and Mary (M) is S = 5M - 3, where Sam makes 5 times the widgets as Mary, but needs to stop for a few minutes during which Mary makes 3 widgets.

Explanation:

The question is asking us to create an equation that represents the relationship between Sam's and Mary's widget production per hour.

Since Sam manufactures 5 times as many widgets as Mary does, we know that Sam's production, S, is equal to 5 times Mary's production, M.

However, Sam needs to stop for a few minutes every hour during which time Mary makes 3 widgets.

This means we need to subtract those 3 widgets from Sam's total production to represent the time he is not working.

Therefore, the correct equation that represents this relationship is: S = 5M - 3.

This is because for every hour, Sam's production is 5 times Mary's, minus the 3 widgets Mary produces while Sam is taking a break.

solve the following system y=-2 -2x-7y=24

Answers

Answer:

x = -5

y = -2

Step-by-step explanation:

Since you have y, plug that into the equation:

-2x - 7y = 24

-2x - 7(-2) = 24

-2x + 14 = 24

Then, subtract 14 from both sides:

-2x + 14 = 24

      - 14   - 14

__________

-2x = 10

Finally, divide both sides by -2:

-2x = 10

x = -5

So now you have, x = -5 and y = -2.

Jasmine went shopping for a shirt the shirt was 35 dollars but it was 30% off

Answers

Answer:

$24.50

Step-by-step explanation:

Answer:

your answer will be 24.50

Akeen makes two regular shoe boxes, box 1 and shoe box 2 1s side length are 5 centimeters and 7 centimeters shoe box 2s side length were twice those of shoebox 1s: 10 centimeter, 12 centimeters, and 14 centimeters. Akin says the surface area of shoebox 2 is twice the surface area of shoe box 1. Is he correct? If he is not, how many times as great as shoebox s surface area is shoe box 2s surface area?

Answers

Akeen makes two regular shoe boxes, box 1 and shoe box 2 1s side length are 5 centimeters and 7 centimeters shoe box 2s side length were twice those of shoebox 1s: 10 centimeter, 12 centimeters, and 14 centimeters. Akin says the surface area of shoebox 2 is twice the surface area of shoe box 1. Is he correct? If he is not, how many times as great as shoebox s surface area is shoe box 2s surface area?

IS THIS MATH? I don’t understand

What is the value of x in the equation 2.5-0.25x=-3?
7-22
o 1 1
o 22

Answers

Answer:

22

Step-by-step explanation:

Subtract 2.5 to -3 to get -5.5 and then divide that to -0.25 to get 22.

Which property is BEST to use when simplifying 5/18 + 2/9 + 13/18?
A) Identity property of addition
B) Commutative property of addition
C) Distributive property
D) Additive inverse property

Answers

i think the answer is A

Answer:

the answer is b

Step-by-step explanation:

Mr. Alvarez bought concert tickets for his family of 6. The total cost of the tickets was $320. There was a $20 handling fee. Write an equation that can e used to find “T” the cost of each ticket. Then solve the equation.

Answers

Answer:

(320/6t)+20

Step-by-step explanation:

Use the given circle. Find the length “s” to the nearest tenth.

*picture*

A. 15.7 in.
B. 37.7 in.
C. 31.4 in.
D. 18.8 in.

Answers

Where the picture???

The arc length of the sector will be 15.7 inches. Then the correct option is A.

What is the arc length of the sector?

Let r is the radius of the sector and θ be the angle subtends by the sector at the center. Then the arc length of the sector of the circle will be

Arc = (θ/2π) 2πr

The diagram is given below.

r = 3

θ = 5/3 π

Then the arc length will be

Arc = (5/3 π/2π) 2π x 3

Arc = 5/3 x π x 3

Arc = 15.7 inches

Then the correct option is A.

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Please help super easy geometry

Answers

Answer:

Step-by-step explanation:

Answer:

Can you please attach the image? I would be happy to help you!!!!!!

Info about Geometry:


is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.

:D

i need helpppp fast will give you the brainliest will give you the brainliest will give you the brainliest will give you the brainliest will give you the brainliest

Answers

Answer:

V = 3239

Step-by-step explanation:

The volume formula for a regular hexagonal prism is 3√3/2a^2h when you input the values you get 3238.74, rounded to the nearest whole number you get 3239, the student most likely used the radius of the hexagon in the equation instead of the height.

Please mark as brainliest :)

Answer:

volume is 3,439 cm

Step-by-step explanation:

The volume formula for a regular hexagonal prism is 3√3/2a^2h when you input the values you get 3238.74, rounded to the nearest whole number you get 3239, the student most likely used the radius of the hexagon in the equation instead of the height.

I hope this helps

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