Each football game begins with a kickoff. The formula h = - 16t ^ 2 + 64t , where h is the height in feet of the football at t seconds, can be used to model a kickoff that is in the air for 4 seconds. At what times will the football be 48 feet above the ground?

Answers

Answer 1

The ball will be 48 feet above the ground at the times of

1 second and 3 seconds.

How to obtain the times?

The quadratic function for this problem is defined as follows:

h = -16t² + 64t.

The ball is 48 feet above the ground when h(t) = 48, hence:

-16t² + 64t = 48.

16t² - 64t + 48 = 0.

The equation can be simplified by 16 as follows:

t² - 4t + 3 = 0.

Factoring the expression, we have that:

(t - 3)(t - 1) = 0.

Applying the Factor Theorem, the times are given as follows:

t - 3 = 0 -> t = 3 seconds.t - 1 = 0 -> t = 1 second.

More can be learned about quadratic functions at https://brainly.com/question/1214333

#SPJ1


Related Questions

Explain how you find the perimeter of this right triangle even though you know the lengths of only two of the
three sides

Answers

Answer:

Total Perimeter of Triangle: 6.33 + 6 + 2= 14.33

Step-by-step explanation:

First of all, to find the perimeter of a triangle you need to know the measurements of all three sides. When you need to find the measurement of the slanted side, ( or hypotenuse), you need to use the Pythagorean Theorem.

[tex]a^2 + b^2 = c^2[/tex]

Then, we insert the numbers:

[tex]2^{2} + 6^{2} =c^2[/tex]

[tex]2^2[/tex] = 4

[tex]6^2[/tex] = 36

So, [tex]c^2[/tex] = 40 or [tex]40^2[/tex]

But wait, the number is is still squared, so the square root of 40, is 6.32455532. ( The number rounded is 6.33, or in tenths, 6.3 )

Finally, we add the measurements of all the sides on the triangle to find the perimeter, which is:

14.33 or 14.3

If Ana spins the spinner 400 times, how many times can she expect to spin green?

Answers

Answer:

The question doesn't make sense.

Answer:

What spinner??

Step-by-step explanation:

Find the missing side. Round to the nearest tenth if necessary.
6 ft
8 ft
2,7
14
10
2

Answers

Answer:

10 feet.

Step-by-step explanation:

Using the Pythagoras theorem:

x^2 = 6^2 + 8^2

x^2 = 36 + 64 = 100

x = 10,

Answer:

10

Step-by-step explanation:

First you write out the equation in the Pythagorean Formula.

[tex]a{}^{2} + b { }^{2} = c {}^{2}[/tex]

This is how you write it for this equation;

[tex]6 {}^{2} + 8 {}^{2} = c {}^{2}

[/tex]

in this format you get 100, that's when you round the answer. If the last digit is higher than 4, you add one more. But it's not, and therefore the answer is 10.

A telephone call costs c cents for the first 3 minutes and m cents for each additional minute. Which expression represents the cost, in cents, of a 6-minute call?

Answers

Answer: [tex]c+3m[/tex]

Step-by-step explanation:

Given

A telephone call costs c cents for first 3 minutes and m cents for each additional minute.

Any call beyond 3 minutes costs

[tex]\Rightarrow c+mt[/tex]

where t is the minutes spent beyond 3 minutes

For 6 minutes , t is 3

thus, it can be written

[tex]\Rightarrow c+3m[/tex]

6m 10m what is the area of the shaded triangle

Answers

Answer:

6 x 10 = 60, 60 divided by 2 ( x 1/2 ) = 30

Step-by-step explanation:

Formula area of a triangle:

B(base)H(height) x 1/2

In this case 10 is your base and 6 is your height.

The area of the shade triangle is 30m².

Area of a triangle

By convention, the area of a triangle is given as;

Area = (1/2) × base × height

Hence, Area, A of the shaded triangle is;

A = (1/2) × 10 × 6

A = 30m².

Read more on area of a triangle;

https://brainly.com/question/23945265

Write 36y divided by 9y in standard form .

Answers

Answer:

4

Step-by-step explanation:

In 36y/9y, the y's cancel out and it becomes 36/9

36/9=4

For f (x) - 3x+1 and g() - x-6, find
A.
3x +1
XP-6
++ V6
B.
3x +1
X-6
C.
x² - 6
3x+1
*+-
3
x² - 6
D.
3х +1

Answers

Answer:

C. (x²+6)/(3x+1),x not equal to -1/3

stay safe healthy and happy....

Helpfjfififofof help number 6

Answers

i think it would be 6

Answer:

6

Step-by-step explanation:

The circumference of a circle is 2*pi*radius. You can multiply 2 by pi and then divide the circumference by that number to get the radius.

2 * 3.14 = 6.28

37.7/6.28 = 6.00318471, which rounds down to 6 in.

which one is it? ill mark brainliest if correct

Answers

Answer:

D

Step-by-step explanation:

Mark as brainllest

In the movie hidden figures what does the cop do to or For the three ladies

Answers

Answer:

the cop offers them a police escort all the way to Langley

Step-by-step explanation:

having a car full of african americans in a car chase a police all the way too Langley.

Need help sorry i suck at this

Answers

Answer:

i see a black screen..

Step-by-step explanation:

Answer:

Its black....Whats your question?

Someone help me with this pls

Answers

The answer would be 8 ^-5

Answer:

=8^-8 × 8^3

= 8^-8+3

=8^ -5

Choose the correct value of x AND the correct value of y from the choices below.
y
45°
16
x = 8/3
x = 8
y=8V2
y=8V3
y = 8
x = 82

Answers

Answer:

x = [tex]\frac{16}{\sqrt{2} }[/tex] and y = [tex]\frac{16}{\sqrt{2} }[/tex]

Step-by-step explanation:

Applying the trigonometric functions to the given triangle;

i. To determine the value of x;

Sin θ = [tex]\frac{opposite}{hypotenuse}[/tex]

Sin 45 = [tex]\frac{x}{16}[/tex]

x = 16 * Sin 45

  = 16 * [tex]\frac{1}{\sqrt{2} }[/tex]

x  = [tex]\frac{16}{\sqrt{2} }[/tex]

ii. To determine the value of y;

Cos θ = [tex]\frac{adjacent}{hypotenuse}[/tex]

Cos 45 = [tex]\frac{y}{16}[/tex]

y = 16 * Cos 45

  = 16 * [tex]\frac{1}{\sqrt{2} }[/tex]

y  = [tex]\frac{16}{\sqrt{2} }[/tex]

Thus, x = [tex]\frac{16}{\sqrt{2} }[/tex] and y = [tex]\frac{16}{\sqrt{2} }[/tex]

all we asked for the question not all that

Answers

Answer:

right they be doing the absolute most !

Step-by-step explanation:

What is the area of the figure?

A figure can be broken into a rectangle and triangle. The rectangle has a base of 6.2 meters and height of 1.8 meters. The triangle has a base of 6.2 meters and height of 2.2 meters.
12.0 square meters
14.28 square meters
17.98 square meters
24.8 square meters

Answers

Answer:

C: 17.98 square meters

Step-by-step explanation:

Answer:

cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Step-by-step explanation:

John needs 5 yards of fabric. The store sells fabric for $3 a foot. How much will it cost John to buy the fabric?

Answers

Answer:

Cost of 5 yards of fabric = $5

Step-by-step explanation:

Cost of one foot fabric = $3

John needs fabric = 5 yards

Since, 1 yard = 3 foot

Therefore, 5 yards = 3 × 5

                               = 15 foot

Total cost of fabric = total length of fabric × Cost of 1 foot fabric

                               = 15 × 3

                               = $45

5 yards of fabric will cost $45.

solve the systems of equations.
2y - Зх -27
5y +3x = 6

Answers

Answer:

y = 33/7 and x = 41/7

Step-by-step explanation:

I'm writing this cuz I gotta get it to 20 characters.

Find the expected value of the winnings
from a game that has the following
payout probability distribution:

Answers

Answer:

The expected value is $4.35

Step-by-step explanation:

For us to calculate the expected value , we need to multiply each of the given probability by the individual payout value and add

So we have it as;

0.35(1) + 2(0.2) + 5(0.1) + 8(0.2) + 10(0.15)

= 0.35 + 0.4 + 0.5 + 1.6 + 1.5

= $4.35

Help I need to make this number into a fraction I’ll give brainliest

Answers

Answer:

33/100 or 1/3

Step-by-step explanation:

The dot over the 3 means repeating, right??

If not, then the correct answer is 3/10.

which inequality is graphed in red

Answers

Answer:

y>x-2

Step-by-step explanation:

When we see an inequality on a coordinate plane, we first treat it like a linear equation. The red inequality, or the red line, clearly has a positive slope. One can assume that this slope is 1. This line is also 2 units down, making the inequality x-2. There you have it!

Furthermore, we can tell it is the 1st choice because the line is dashed. In inequalities, the line is only dashed when the inequality contains < or >. Also, the shading is "above" the line, meaning the y must be greater than the line.

Which answer is closest to the volume of a cylinder with a height of 6ft and a radius of 4ft.

Use the formula: V = π r^2 h

Answers

Answer:

301.59

Step-by-step explanation:

please mark brainliest

Answer:

Step-by-step explanation:

V≈301.59ft³

=πr2h=π·42·6≈301.59289ft³

what's the domaing and range of this

(sorry for the quality, its the best I could get)

Answers

Answer:

domain: [-3,2]

range: [-3,2]

Step-by-step explanation:

domain: all possible x values *maximum values of x

range: all possible y values *maximum values of x

brackets means the max while parenthesis mean infinite

-5x’2+9x-3=0

Descriminant:

Number of real solution:

Answers

Answer:

2 x ^2 − 2 x + 4 = 0

x ^2 − 2 x + 4 = 0

2 x ^2 − x = 0

Step-by-step explanation:

uf bguvhbacndkzvhsdvnjsdbsdvbs help

Answers

Answer:

3 + 2 = 5

5 x 5 = 25(5^2 = 25)

25 - 7 = 18

Step-by-step explanation:

Solve in parenthesis first then do exponents then perform the subtraction.

Using PEMDAS it will be a LOT more easier.

Answer:

18

Step-by-step explanation:

(3+2)^2 -7

PEMDAS says parentheses first

(5)^2 -7

Then exponents

25 -7

Then finally subtract

18

The Gardening Club is looking to build a new greenhouse at their school with the dimensions shown below.

Volume and circles !

Answers

Answer:

a) 2,400 ft^3

b) 1,413 ft^3

c)  3,813 ft^3

Step-by-step explanation:

First, two general equations:

For a rectangular prism of length L, width W and height H, the volume is:

V = L*W*H

And for a cylinder of radius R and height H, the volume is:

V = pi*(R^2)*H

where pi = 3.14

a) First we want to find the area of the rectangular part.

We can see that the measures are:

H = 8ft

W = 12ft

L = 25ft

Then the volume of this part is:

V = (8ft)*(12ft)*(25ft) = 2,400 ft^3

b) For the half-cylinder, we can see that we have a diameter of 12ft (then has a radius of 12ft/2 = 6ft) and a height of 25ft

R = 6ft

H = 25ft

Then the volume of this part will be half of the volume of a cylinder with these dimensions, so here we have:

V' = (3.14*(6ft)^2*25ft)/2 = 1,413 ft^3

c) The total volume is just the sum of the two volumes we found above, this is:

Volume = V + V' = 2,400 ft^3 +  1,413 ft^3 = 3,813 ft^3

udent
You roll a number cube two times. Which of the theoretical probabilities are accurate?
Check all that apply.
OP(1 then 0) = }
Pleven number then odd number) = 4
P(6 then 2) = 36
Pleven number then 5) = 12
ook
ons
ative
Plodd number then 2) =
HELP

Answers

Answer:

B ; C ; D

Step-by-step explanation:

Number of faces on a number cube = 6

Sample space = (1, 2, 3, 4, 5, 6)

P(1 then 0)

P(1) = 1/6 ; P(0) = 0

P(1 then 0) = 1/6 * 0 = 0

P(even number then odd number) :

P(even number) = 3/6 = 1/2

P(odd) = 3/6 = 1/2

P(even number then odd number) = 1/2 * 1/2 = 1/4

P(6 then 2) :

P(6) = 1/6 ; P(2) = 1/6 = 1/2

P(6 then 2) = 1/6 * 1/6 = 1/36

P(even number then 5) :

P(even) = 3/6 = 1/2

P(5) = 1/6

P(even number then 5) = 1/2 * 1/6 = 1/12

P(odd number then 2) :

P(odd) = 3/6 = 1/2

P(2) = 1/6

P(odd number then 2) = 1/2 * 1/6 = 1/12

can somebody help me with the question i asked before this.....please

Answers

Answer:

yes, im about to look at it.

Step-by-step explanation:

A division problem is shown

Answers

Answer:

B

Step-by-step explanation:

hope this helps with the work

One Step Inequalities...
Someone please help i'll give you brainliest answer and more!​

Answers

Answer:i’m sorry i don’t know best of luck tho

Step-by-step explanation:

- Each day, Oliver earns $50 plus $8.50 for each package he delivers. If his paycheck for the first day was $152, how many packages did he deliver that day?​

Answers

Ur answer is 12 I’m pretty sure
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