Josh drops his phone from a height of 50 feet. The situation is best modeled by h = -16t^2 +50, where h is the height in feet and t is the time in seconds. How long will it take for the phone to hit the ground? Round to the nearest tenth.

Answers

Answer 1
It will take 2.24 for the phone to hit the ground
Answer 2

It will take approximately 1.8 seconds for the phone to hit the ground.

What is meant by an Equation?

A mathematical statement which includes two sides, namely, left and right hand side consisting of numbers or variables, which are connected by an "equal to" sign is called an equation.

Given in the question that,

Equation representing the situation of the height of the phone in t seconds, is,

h = -16t² + 50

where h is the height in feet and t is the time in seconds.

The phone hits the ground means that the height is 0 there.

Substituting h = 0,

-16t² + 50 = 0

-16t² = -50

t² = 50 / 16

t² = 3.125

t = 1.767 ≈ 1.8 seconds

Hence the time taken is 1.8 seconds to the nearest tenth.

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Related Questions

How to get the answer of 2/5 X -3/7 - 1/14 - 3/7 X 3/5 using distributive property of multiplication?

Answers

Answer:

The answer to the given question is - ¹/₂

Step-by-step explanation:

Given;

[tex]\frac{2}{5} \times -\frac{3}{7} - \frac{1}{14} - \frac{3}{7} \times \frac{3}{5}[/tex]

Before we apply the distributive property, perform the multiplication operation.

[tex](\frac{2}{5} \times -\frac{3}{7}) - \frac{1}{14} - (\frac{3}{7} \times \frac{3}{5} )\\\\\frac{-6}{35} - \frac{1}{14} - \frac{9}{35}[/tex]

Now, apply the distributive property, to obtain the final answer,

In distributive property, the following rule is applied;

ax + ay = a(x + y)

[tex]\frac{-6}{35} - \frac{1}{14} - \frac{9}{35} = \frac{-1}{7} (\frac{6}{5} + \frac{1}{2} + \frac{9}{5} )= \frac{-1}{7} (\frac{12 + 5+ 18}{10} )= \frac{-1}{7} (\frac{35}{10} ) = \frac{-35}{70} = \frac{-1}{2}[/tex]

Therefore, the answer to the given question is - ¹/₂

which set has the greatest mode?

Answers

Answer:

A

Step-by-step explanation:

A is your answer.

The mode is the number in a set that occurs most often. In sets where each number occurs only once, there is no mode.

A: mode = 31
B: no mode
C: mode = 21
D: no mode

PLSSSS HELPPPPPPP WILL MARK BRAINIEST!!!

Answers

Answer:

You forgot to attach the image!! Go back and try again!

Step-by-step explanation:

Answer:

i guess you didnt need help there is no question

Step-by-step explanation:

please mark brainliest even thou no question was answered

If Mr. Smith had $210,500 in an account that earned $2,000 in interest in 7 years, how much money would he have in the account after 7 years.

Answers

Answer:

eugene was the only person to do that brother want me to be a man of a woman called me maths exercise 3in a minute and 63633663rd of the day to the day I 6am 6to 7I 6be and 6I 663773to to the other day and I think you should write in 6a and the 3other of your day to day

PLEASE HELP ME OUT PLEASE!!!!!!​

Answers

Answer:

T = (0, 2b)

A = (a, 4b)

Step-by-step explanation:

The circumference of a circle is 2\piπ m. Find its radius, in meters.


NO FILES TYPE THE ANSWER PLZ

Answers

Answer: r=C2π=22·π≈0.31831

Hope this helps!

answer for brainlest and 25 points

Answers

Answer:

Order from greatest to least: 10.5, [tex]3\pi +1[/tex], [tex]\sqrt{105}[/tex]

Step-by-step explanation:

step 1 simplify each number

3π + 1  = 10.4247779

*round to the nearest tenth*

3π + 1 = 10.4

[tex]\sqrt{105} =10.2469507[/tex]

*round to the nearest tenth*

[tex]\sqrt{105} =10.2[/tex]

10.5 = 10.5

Now that we have simplified each number we can easily put them in order from greatest to least

10.5 is the greatest number

10.4 is the middle number

10.2 is the lowest number

so 10.5, 10.4, 10.2

Now we put them back in the original form

10.5 = 10.5

10.4 = 3π + 1

10.2 = [tex]\sqrt{105}[/tex]

Your answer is

10.5 , 3[tex]\pi[/tex] + 1, [tex]\sqrt{105}[/tex]

What is the area of the figure on the cordinate plane below

Answers

Answer:

where is the coordinate plane?

Step-by-step explanation:

Answer:

No picture please add it next time and make sure to double check if its there.

What is 437 rounded to the nearest whole number

Answers

Answer:

437

437 is a whole number itself, so it would be 437.

Hope that helps!

Step-by-step explanation:

The number is 400 since it’s the nearest

Write an exponential function to model the following situation.
A population of 140,000 grows 5% per year for 15 years.
How much will the popluation be after 15 years?
Write an exponential function in terms of x.
X
y-DO

Answers

Answer:

291050 people

Step-by-step explanation:

The formula for exponential growth is given by; a(1 + r)ⁿ

where;

a is the initial population

r is the rate of change

y is the final population

x is the number of years

r is the rate of change

We are given;

Initial population; a = 140000

Rate; r = 5% = 0.05

Number of years; x = 15 years

Thus, in terms of x;

y = 140000(1 + 0.05)^(x)

Now, after 15 years, we now have;

y = 140000(1 + 0.05)^(15)

y = 291049.94511

Approximating to a whole number gives;

y = 291050 people

4.72 rounded to the nearest tenth

Answers

Answer:

4.70

~hope this answered your question correctly, have a gr8 day my friend!~

Step-by-step explanation:

Answer:

4.7

Step-by-step explanation:

Because 2 is below 5

im a bit confused :(​

Answers

Answer:

420

Step-by-step explanation:

the basic formula for volume is length × width × height.

multiply them all!

ig

Answer:

42

Step-by-step explanation:

For more information search volume for triangular prism and enter the numbers for the diagram

Pls answer :c ! I need help ASAP ! (Math)

Answers

Answer:

6x = 12 : Divide both sides of the equation 6

6 ( x - 12 ) = -3x - 5: Distrubite the 6 to clear the paranthesis

6x + 5 = 9x - 1 : Subtract 6 from both sides of the equation

Problem 1.
For which function k does the output increase by 20%
every time the input increases by 1?
A. k(x) = 0.020^x
B. k(x) = 0.20^x
C. k(x) = 1.20^x
D. k(x) = 20^x

Answers

Answer:

C

Step-by-step explanation:

character requirement

Answer:

Step-by-step explanation:

rip i forgot how to solve this

Answers

surface area is 108, because A=2(wl+hl+hw) so we would do A=2·(4·6+3·6+3·4) which is 108

Stephen, Gavin and Jim share some sweets in the ratio 1:4:4. Stephen gets 13 sweets. How many more sweets does Gavin get over Stephen?

Answers

Answer:

39

Step-by-step explanation:

1:4:4

13:52:52

52-13 = 39

Rewrite the expression by using the distributive property and collecting like terms 1/5(5x-15)-2x

Answers

Answer:

-x-3

Step-by-step explanation:

First, you need to distribute the 1/5 to both the term 5x and the term -15, which requires multiplication. This gives you 1x-3. The -2x can then be added on to this equation, which gives you 1x-3-2x. Combining the like terms of 1x and -2x gives you -x. The entire expression is then -x-3.

Which of the following is an equivalent representation?

Answers

It’s D. 2^-3 is 1/8 for it

Answer:

D. [tex] \frac{1}{8} [/tex]

Step-by-step explanation:

[tex] {2}^{ - 3}[/tex]

➡️ [tex] \frac{1}{ {2}^{3} } [/tex]

2 × 2 × 2

2 × 2 × 2= 8

➡️ [tex] \frac{1}{8} [/tex]

Please please help help this is for the brainies please ASAP please ASAP thank you
No links or files

Answers

Answer:

(-5,2)

Step-by-step explanation:

:)

How many years will it take for $136,000 to grow to $468,000 if it is invested in an account with an annual interest rate of 8%?

Answers

Answer:

=21.29%(Approx).

Step-by-step explanation:

We use the formula:

A=P(1+r/100)^n

where

A=future value

P=present value

r=rate of interest

n=time period.

a.

468,000=136,000*(1.08)^n

(468,000/136,000)=(1.08)^n

Taking log on both sides;

log (468,000/136,000)=n*log 1.08

n=log (468,000/136,000)/log 1.08

=16.06 years(Approx).

b.

475,000=10,000*(1+r/100)^20

(475,000/10,000)^(1/20)=(1+r/100)

(1+r/100)=1.2129

r=1.2129-1

=21.29%(Approx).

Based on the information in the statement, what is philips net worth?

Answers

Answer:

Phillip Schofield net worth: Phillip Schofield is an English television presenter and television personality who has a net worth of $12 million dollars.

Step-by-step explanation:

can i have brainliest

Number 15 please help 10 points no links pleAse

Answers

Answer:

C

Explanation:

On the scatter plot, there is a dot where the lines for 6 and 3 meet. when looking for the ordered pair you would go along first then up (> then ^) so it would be (6,3). Another example, for the third dot on the plot, if you go along first you get 12 then when you go up you get 9 so the ordered pair for that would be (12,9). I really hope you understand what i mean and this helps as i struggled with explaining haha!

Jaime uses a compass to construct a circle. She places the point on her paper and uses the pencil to create the circle. What name could she give to the point she made with her compass? *

chord

radius

center

diameter

endpoint

Answers

Answer:

center

Step-by-step explanation:

None of the answers that are part of a straight line are the answers.

That lets out

chord radiusdiameter

Endpoint is what the pencil is creating if it just sits still, so endpoint is not the answer.

Answer: center.

please hurry and helppp

Answers

Answer:

32.86

Step-by-step explanation:

Find the perimeter of EFGH.

Answers

Answer:

30.5

Step-by-step explanation:

6x3+12.5=30.5

Can someone please help me with this? Will give brainliest! Thanks.

Answers

the answer is c.
sq rt of 68 is 8.24..... and sq rt of 88 is 9.38...
hope this helps

Carmen leaned a 13-foot ladder against a wall. If the base of the ladder is 4 feet from
the bottom of the wall, approximately how far up the wall does the ladder reach?

Answers

Answer:

13+4=17

Step-by-step explanation:

The required ladder reaches approximately 12.37 feet up the wall.

What is the Pythagorean theorem?

The Pythagorean theorem is a fundamental theorem in geometry that describes the relationship between the sides of a right triangle. It states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. In algebraic terms, the Pythagorean theorem can be written as:

a² + b² = c²

where a and b are the lengths of the two legs of the right triangle, and c is the length of the hypotenuse.

Here,
We can use the Pythagorean theorem to solve this problem. Let's denote the distance from the bottom of the wall to where the ladder reaches the wall as h. Then we have,

h² + 4² = 13²

h² + 16 = 169

h² = 153

h ≈ 12.37

Therefore, the ladder reaches approximately 12.37 feet up the wall.

Learn more about the Pythagorean theorem here:

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Any helpers ? Pls it would be nice

Answers

Answer:

x = -(-20)² ± √(-20)² - 4(16)(-6) / 2(16)

Step-by-step explanation:

Given quadratic equation:

16x² - 20x - 6 = 0

Quadratic formula is given by:

x = -b² ± √b² - 4(a)(c) / 2a

16x² - 20x - 6 = 0

From the equation,

a = 16

b = -20

c = -6

x = -b² ± √b² - 4(a)(c) / 2a

x = -(-20)² ± √(-20)² - 4(16)(-6) / 2(16)

x = -(400) ± √(400) - (-384) / 32

x = -400 ± √400 + 384 / 32

x = -400 ± √784 / 32

x = -400 ± 28 / 32

x = (-400 + 28) / 32 or x = (-400 - 28) / 32

Can someone please help me with math.

Answers

The answer is B, Graph B is the linear graph

Pleas help me !!! It’s due today

Answers

KE=0.5xmxv2
=0.5x 1.2x10^3x (3.4x10^3)^2=6936000000
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