3. Physics students were modeling the height of a ball once it was dropped from the roof of a 25 story
building. The students found that the height in feet, h, of the ball above the ground as a function of the
number of seconds, i, since it was dropped was given by h(t)= 300 - 1612.
From what height was the ball dropped?
To the nearest tenth of a second, determine the time at
which the ball hits the ground. Provide evidence from a
table to support your answer or solve this algebraically
if you recall how to.

Answers

Answer 1

It will take 4.3 seconds for the ball to hit the ground

Given the eqation of the height at which the object dropped expressed as

h(t) = 300 - 16t²

The object will hit the ground at when h(t) = 0

Substitute h(t) = 0 into the expression to have;

0 = 300 - 16t²

16t² = 300

t² = 300/16

t² = 18.75

t = 4.33sec

This shows that it will take 4.3 seconds for the ball to hit the ground

Learn more here: https://brainly.com/question/25305499


Related Questions

pls help i'll give brainliest. Write an equation that represents the line.

Answers

Answer:

y=2/x=1    y=4/x=4

Step-by-step explanation:

What is 32/48 in simplest form?

A.2/3

B.3/4

C.4/6

Answers

Answer: A) 2/3

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

32/48

Divide the numerator and denominator by 16:

2/3

<3

Answer:

A. 2/3

Step-by-step explanation:

32 = 2 x 16

48 = 3 x 16

32 / 48

= ( 2 x 16 ) / ( 3 x 16 )

= 2 / 3

solve pls brainliest

Answers

Answer:

y=15x

Step-by-step explanation:

Plug in the numbers given and the equation works.

Can someone please help?!

Explain step by step of how you would find the scale factor for the following problem.

Answers

Answer:

Scale factor = 2.5.

Step-by-step explanation:

Work out the lengths of the corresponding sides.

The scale factor is the ratio of one side to the other.

Take the smallest length in both triangles.

Blue triangle:

length = √((7.5-2.5)^2 + (12.5-5)^2) = 9.0139 units.

Red triangle:

length = √((3-1)^2 + (5-2)^2) =3.6056

So the scale factor

= 9.0139/ 3.6056

= 2.5.

There are 5 boxes and each box weighs x pounds. Write the expression for the total weight of the
boxes.

Answers

Answer:

5x pounds

Step-by-step explanation:

Here's the solution if you need, hope it's help

Select the correct answer.
Which expression is a factor of this polynomial?
13 + 2x^2-9x-18
O
O A. (x - 2)
B. (x + 1)
Oc. (x - 6)
D. (x + 2)

Answers

Answer:

i think i'ts D. (x +2)

Step-by-step explanation:

PLEAS HELP I NEED HELP AND ITS ALMOST TIME TO TURN IT IN SO HELP ME PLS

Answers

Answer:

I think its 5 [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

6. What is an equation in slope-intercept form for the line that passes through the points and (3, 1)? y= 3x + 1 y=x-3 y=2x + 5 y= 2x - 5​

Answers

Answer:

The correct answer is D) y = 2x - 5

To find the equation of the line, start by finding the slope. You can do this by using the slope formula below.

m(slope) = (y2 - y1)/(x2 - x1)

m = (1 - -3)/(3 - 1)

m = 4/2

m = 2

Now that we have the slope, we can use it along with either point in point-slope form to get the equation.

y - y1 = m(x - x1)

y - 1 = 2(x - 3)

y - 1 = 2x - 6

y = 2x - 5

Answer: y=2x-5

the points are 4 points away from each other vertically, and 2 away horizontally. This makes the slope 4/2 or just 2.

take the slope and go backwards until you hit the y axis and the y-intercept is -5

this means the equation is y=2x-5

What is the estimated sum of
5,623 + 2,895?

Answers

Answer: 8518

Step-by-step explanation:

if ab=12 and a^2+b^2=25 ,then what is (a+b)^2=​

Answers

Answer:

I think it’s a^2+2ab+b^2

Answer:

49

Step-by-step explanation:

Multiply out (a+b)^2

(a+b)^2 = (a+b)(a+b) = a^2 + ab + ba + b^2 ; not ab = ba so,

= a^2 + 2ab + b^2 = a^2 + b^2 + 2ab ; now subtitue in given values

=25 + 2(12) = 25 + 24 = 49

So (a+b)^2 = 49

Evaluate: [(1/2)^2-(1/4)^3]​

Answers

Answer:

15/64

Step-by-step explanation:

Evaluate:

[(1/2)²-(1/4)³]

We have to find the value of expression ?

Explanation:-

Given that

[(1/2)²-(1/4)³]

⇛ [{(1/2)×(1/2)}-{(1/4)×(1/4)×(1/4)}]

⇛ [{(1×1)/(2×2)}-{(1×1×1)/(4×4×4)}]

⇛ [(1/4)-(1/64)]

LCM of 4 and 64 = 64

⇛ [(1×16)-(1×1)]/64

⇛ (16-1)/64

⇛ 15/64

The value of the given expression is 15/64.

The slope of a line is -4, and the y-intercept is -3. What is the equation of the line written in slope-intercept form?

y = -4x - 3
y = 4x - 3
y = -4x + 3
helppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

y = -4x - 3

Hope this helps and if it did maybe mark me as brainliest : ) ?

explain for a brainlist !!!!!!!!!!

Answers

Step-by-step explanation:

cross multiply

so it will be

2y= -1x+5

2y+x=5

thats the only part i know

You rent an apartment that costs $1000 per month during the first year, but the rent
is set to go up $160 per year. What would be the monthly rent during the 10th year of
living in the apartment?

Answers

Answer: In the tenth year your rent would be 2440 a month.

Hope this helps!

Plz help fast.
I will mark Brainlyist

Answers

I included the formula and the answer

Evaluate the expression below if a = -8, b = 17, and c = 21. a^2-(b+c)

Answers

Answer:

26

Step-by-step explanation:

a^2-(b+c)= (-8)^2-(17+21)=64-38=26

answer please help me out

Answers

Answer:

Hey just search up an algebraic calculator I finished my homework with it lol

Step-by-step explanation:

The ratio of quarters to dimes in a money bag is 21:18. If the total number of coins is 147,how many dimes are there?

Answers

21 + 18 = 39

147/39 = 3.7692307692307

3.7692307692307 x 18 = 67.846153846152, round to 67.80 and that's your answer

the ball started at the 5 yard line. what is the position of the ball after these two plays

Answers

Answer:

you have to show a diagram or I can't help you

HELP WILL GIVE THE MOST POINTS IT LETS ME NEED ANSWER SOON

Answers

Answer:

c. -5x - 2 = -42

Step-by-step explanation:

Have a nice day! :-)

Answer:

-5x-2 = -42

Step-by-step explanation:

less than means you do this after what comes next

Product of a number and -5

-5x

Two less than

-5x -2

is means equals

-5x-2 = -42

A company charges a shipping fee that is 4.5 % of the purshas price for all items it ships . What is the fee to ship an item that costs $56 ?

Answers

Answer:

The answer is $2.52.

Step-by-step explanation:

56 x .045= $2.52

How many 2 digit numbers have unit digit 6 but are not perfect squares

Answers

9514 1404 393

Answer:

  7

Step-by-step explanation:

Of the 9 2-digit numbers ending in 6, only 2 are perfect squares: 16 and 36. The other 7 are not perfect squares.

The position of cat and rat are shown in a graph paper.Find the coordinates of cat and rat where they lie and the distance between them.​

Answers

Cat(-5,0)Rat(5,5)

Distance:-

[tex]\\ \sf{:}\Rrightarrow \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

[tex]\\ \sf{:}\Rrightarrow \sqrt{(5+5)^2+(5-0)^2}[/tex]

[tex]\\ \sf{:}\Rrightarrow \sqrt{10^2+5^2}[/tex]

[tex]\\ \sf{:}\Rrightarrow \sqrt{125}[/tex]

[tex]\\ \sf{:}\Rrightarrow 11.2[/tex]

Please need help 20 points

Answers

Answer:

what type of math is this?

Step-by-step explanation:

What is the slope in the picture?

Answers

Answer:

positive; sence it's starting from the bottom and going up its positive

positive!! i think it is because its going up a hill and it started at the bottom!!! hope this helps

Loại ngôn ngữ lập trình được đông đảo người lập trình lựa chọn là?

Answers

Answer:

JavaScript

Step-by-step explanation: Đó là lý do JavaScript nên đứng đầu tiên trong danh sách ngôn ngữ lập trình thích hợp cho người mới bắt đầu. Theo khảo sát mới nhất trên Stack Overflow – “phao cứu sinh” của developer, JavaScript là ngôn ngữ phổ biến nhất được sử dụng rộng rãi trong vòng 8 năm qua

A line passes through point A (12,18). A second point on the line has an x-value that is 125% of the x-value of point A and a y-value that is 75% of the y-value of point A . Use point A to write an equation of the line in point-slope form.

Answers

The answer is 18, 0

You gotta trust me

HELP I AM TAKING A MATH TEST!

-10-(-3)=? explain how you solved this is 2 or 3 sentences

Answers

Answer:

-10-(-3)

Step-by-step explanations

we have-10-(-3). since law of basic operation:

+*+=+

-*-=+

so we have-10(-*-=+)

so we have-10+3

Can anyone help me with this

Answers

Answer:the 3rd one

Step-by-step explanation:

PLEASE ANSWER ASAP CORRECT ANSWER GETS BRAINLIST

Solve.

2 1/3−1/2x=−2/3

Enter your answer in the box.
x =

Answers

I guess the number 2 is to indicate the question...

Then the equation would be 1/3 - 1/2x = -2/3

1/3 - 1/2x - 1/3 = -2/3 - 1/3

-1/2x = -3/3

-1/2x = -1

-1/2x *2 = - 1*2

-x = -2

-x * -1 = -2 * -1

x = 2

Good luck

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