Mathematics High School

( will give brainlyest)
A firework is launched from the ground at a speed of 160 feet per second. It’s height after t seconds is given by the polynomial -16t^2+160t. What is the height of the firework after 4 seconds?

Answers

Answer 1

-16t^2+160t=0
16t^2=160t (Divided by 16)
t^2=10t (Divided by t)
t=10

Height
= Speed x Time
= 160 x 4
= 640 feet

Related Questions

Find a solution to the linear equation −8x−y=24

Answers

Answer:

solving the linear equation in terms of y and x will give you

y = -8

x = -2

Answer:

x=-2

y=-8

that's basically it.

BRAINLIEST to wherever gets this correct

Answers

Answer:

300π

Step-by-step explanation:

The only difference in the formulas to find volume of each is that the volume of a cone is 1/3πr² and the volume of a cylinder is just πr²

Plss help me, I have to find area

Answers

Answer:

C: 191.

Step-by-step explanation:

The total area of this is a little less than 15 x (3+4+10) = 15 x 17 = 255.

So then we subtract that by 36, which is the rectangle that is missing from the shape. So 255-36 = 219.

So now we have to guess. The triangle seems a little small, so it has to be the largest option, which is C: 191.

I = 160.67, P = 900, t = 12

Answer step by step please:)

Answers

Answer:

https://doubtnut.com/question-answers/i16067-p2000-t8-monthsi16067-p2000-t8-months-what-is-the-annual-interest-rate--344869

Step-by-step explanation:

copy the link above and watch the video hope this helps

1 2/3*J=15 What is J?

Answers

Answer:

Do you mean:

(1+(2/3))j = 15

((3/3)+(2/3))j = 15

((3+2)/3)j = 15

(5/3)j = 15

j = 15 / (5/3)

j = 15 * (3/5)

j = 9

Step-by-step explanation:

Answer:

daddy chill

Step-by-step explanation:

oooga boooga

Please help.
Is algebra.

Answers

3 would be 4
4 would be 6
when dealing with outside exponents you multiply them, hope this helps :)

HELP HELP HELP MEEEE

Answers

Answer:

3240 degrees.

Step-by-step explanation:

what is/are the coefficients 2x-5g+1

Answers

Answer:2 and 5 are coefficients

Step-by-step explanation:

Coefficients are the multiplicative factor of a variable in polynomials, so in the future look for numbers in front of a variable in polynomials.

Find the distance CD rounded to
the nearest tenth.
C = (7,-4) and D = (-8,-5)
CD = [?]

Answers

Answer:

CD= 15.03

Step-by-step explanation:

x1=7, x2= -8

y1=-4, y2=-5

distance CD= √(x2- x1) 2+ (y2-y1)2

= √( -8-7)2 + [-5-(-4)]2

= √(15)2+ (-5+4)2

= √225+ (1)2

= √225+1

= √226

= 15.03

Mia got $80 for her birthday and spent $60. What percent of her birthday money does she have left

Answers

Answer:

16 percent is left

Step-by-step explanation:

20/100×80

Hope it helps!!

solve for x or find x

Answers

X=4
And to prove it
8(4)-1=31

[tex] \huge \purple{\tt{Answer:}} [/tex]

In a rectangle , opposite sides are equal in length .

So ,

[tex] \sf {8x-1=31} \\\\ \implies \sf {8x=31+1=32} \\\\ \implies \sf{x={\dfrac{32}{8}}} \\\\ \implies \sf{x=4} [/tex]

How many solutions does this linear system of equations have?
x – 3y = 5
-3x + 9y = -7

Answers

9514 1404 393

Answer:

zero

Step-by-step explanation:

Dividing the second equation by -3, it becomes ...

x -3y = 7/3

Compared to the first equation, ...

x -3y = 5

we see that it is inconsistent. No values of the variables can satisfy both equations. There are no solutions.

HELPPP

Jose starts a savings account with $80. At the end of 6 months, the account had $350. Assuming there is a constant rate, how much did Jose save per month?

Answers

Answer:

Step-by-step explanation:

Help please............................

Answers

Answer:

Step-by-step explanation:

m∠7=m∠3

3x-10=2x+5

x=15

m∠3=2(15)+5

=35

m∠1=m∠3 (vert. opp. ∠)

= 35

I think it’s C because if you add and do the equations all at the top u get the same answer as C which is what I did :)

can someone help me with this please?!
the choose options for both are: less than, equal to or greater than

Answers

Answer:

The rate of function 1 is greater than function 2, the y intercept of function 1 is 3

Step-by-step explanation:

I need help I have been waiting for 2 hours

Answers

other person alr did #1, and #2 is 0.175

5% of 3 and one half is 0.175 as a decimal

Answer:

$139.24

Step-by-step explanation:

$98+$20=$118

(1.18)($118)=$139.24

the 1.00 in 1.18 is the cost without tax, the 0.18 is the tax, so if you want the cost of the room with tax you would multiply the cost of the room before tax with 1.18

The tax for every room is the same(.18). Tax is taken from the initial cost so you would do 98+20= 118. $118 is the cost of the double room without tax, $139.24 is with tax.

A chef bought 0.56 kilograms of almonds and 0.4 kilograms of pecans. How many kilograms of nuts did the chef buy in all?

Answers

Answer:

0.96 kg

Step-by-step explanation:

0.56+0.40=0.96

95.4

Add the numbers of kilograms. Remember to line up the decimal points. You can write extra zeroes to make equivalent decimals.

Spare an answer sir?

Answers

Answer:

yes

Step-by-step explanation:

3+ 9*4 = 3 + 36 = 39

39 is bigger than 15

Answer:

yes

Step-by-step explanation:

Just you will subsititute by the point in the inequality

(3, 9) the first number is x and the second is y

then

3 + 4 * 9 = 39

for sure 39 > 15

I hope this is hlepful to you

Can someone please help I’ll mark you the brainiest..

Answers

Answer:

(-3±√5)/2

This is a quick check so stop asking for help online because it is test related

what is the hcm of 18 and 45

Answers

Answer:

Step-by-step explanation:

90 Or, we can say that it is a method of breaking down the given integer into its prime factors. Therefore, the HCF of 18 and 45 is 9. Therefore, the HCF of 18 and 45 is 90.

Sam and Nathan are training for a race. Monday, Sam ran 2 ¾ miles, and Nathan ran 2 ⅓ miles. How much farther did Sam run than Nathan?

Answers

Answer:

1/2 - 1/5

1 1/5 - 2/3

Step-by-step explanation:

can you please help me solve this equation using substitution? I’ve been trying to solve it for so long and can’t do it.

2x-y=5 and 3x+y=-9

Answers

Answer:

x=-4/5 y= -33/5

Step-by-step explanation:

y=-3x-9

2x+3x+9=5

5x=-4

x=-4/5

Then plug it in into an equation.....2(-4/5)-y=5

-8/5-y=25/5

-y=33/5

y=-33/5

You can check if you want

Answer:

x = -4/5, y = -6 3/5

Step-by-step explanation:

The way to use substitution to solve is to isolate (Put it on one side without anything else on that side of the equation) a variable. We can use the first equation to isolate y. We can add y on both sides to get that 2x = y + 5 and then subtract by 5 on both sides to get that y = 2x - 5. Next, we can substitute 2x - 5 in for y in the second equation because y = 2x - 5. We would get that 3x + 2x - 5 = -9, so 5x - 5 = -9, and if you add by 5 on both sides, you get 5x = -4. Finally, we can divide by 5 on both sides to get that x = -4/5. If you want to find y, we can find it by substituting x into the equation 2x - 5 = y. 2 * -4/5 - 5 is equal to y, so -8/5 - 5 = y, and lastly, y = -6 3/5

I need help with geometry really bad, if you don’t mind answering this? And also if your good at geometry drop your number so I can get help

Answers

Answer:

127

Step-by-step explanation:

using the definition of a straight angle:

53+x=180

127

There are (3x - 2) students in a classroom. If each one of them is asked to bring
(x - 3) pieces of paper. How many pieces of paper will the class collect?

Answers

Step-by-step explanation:

STUDENTS=3X-2

IECES OF PAPER=X-3

TOTAL PIECES OF PAPER=(3X-2)(X-3)

=3X^2-9X-2X+6

3X^2-11X+6

Shakes.
4. A zoo has
It has 375 monkeys.
Compare the number of
snakes to the number
of monkeys.
Write > or <.
405
375

Answers

Answer:

405 > 375

375 < 405

Step-by-step explanation:

< is less than

> is greater than

I need help with this algebra problem

Answers

Answer:

Step-by-step explanation:

plz help me huryyyyyyyyy

Answers

Answer:

100 3/13

Step-by-step explanation:

1,303 ÷ 13= 100 3/13

In a factory, eggs are packaged in groups of six per box how many full boxes of eggs can the factory make with 937 eggs

Answers

Answer:

156 boxes

Step-by-step explanation:

Simply divide the total amount of eggs (937) by the amounts which are packaged in the boxes (6)

937 / 6 = 156 [tex]\frac{1}{6}[/tex]

So there are 156 full boxes and 1 egg left

Since you can't pack one egg, the answer is 156 boxes

Answer:

156

Step-by-step explanation:

937 ➗ 6 which 156.16667 near to 156

What is the answer I have no clue

Answers

It’s C. Just look at the y-intercepts and it will be fine.

What is the sum of i° + k°?

Answers

Answer

1 + 32 + 243 + 1024 + .. + n5

Step-by-step explanation:

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( will give brainlyest) A firework is launched from the ground at a speed of 160 feet per second. It’s height after t seconds is given by the polynomial -16t^2+160t. What is the height of the firework after 4 seconds?

Answers

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( will give brainlyest)
A firework is launched from the ground at a speed of 160 feet per second. It’s height after t seconds is given by the polynomial -16t^2+160t. What is the height of the firework after 4 seconds?