The function h defined by h(t)=(49 + 4.9t)(10 - t) models the height, in meters, of an object t seconds after it is dropped from a helicopter.

From what height is the object dropped? Explain how you know.

Answers

Answer 1

Answer:

Step-by-step explanation:

Let's FOIL this out and get it into standard quadratic format:

[tex]h(t)=-4.9t^2+490[/tex]. The lack of a linear term in the middle means therewas no upwards velocity, consistent with the object being dropped straight down as opposed to thrown up in the air tand then falling in a parabolic path. The -4.9t² represents the acceleration due to gravity, and the 490 represents the height from which the object was dropped. The constant in a quadratic that is modeling parabolic motion always represents the height from which the object was dropped (or launched). That's how you know.

Answer 2

The requried initial height of the object is 490 meters.

What are functions?

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

The object is dropped from a height of 49 meters.

We know this because the initial height is given by the first term of the expression in the parentheses, which is 49. When the object is dropped from the helicopter, t is equal to zero. Substituting t=0 into the equation for h gives:

h(0) = (49 + 4.9(0))(10 - 0) = 49(10) = 490

Therefore, the initial height of the object is 490 meters.

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Related Questions

What are the domain and the range of this function? (PLEASEEE HELP MEE!!))​

Answers

Answer:

Unisciti prestu è tornerete à u megliu di LUCKY hè un mc da spada arte di fà u pudete vede a mo quantità enorme di tempu per esplorà novi modi di ur affari Outta

Mr.Shand had $50 in his wallet on Friday after school.That night,He spent $11.50 on a pizza $3.75 on ice cream.One his way home,He found $5 on the ground ,How much money does Mr.Shand have at the end of the night?

Answers

Answer:

39.75

Step-by-step explanation:

so first we do 50-11.50-3.75+5. to simplify it 55-15.25

if u do the math that equals 39.75

to double check 39.75+15.25=55

If you do the math

50.0 - 11.50 = 38.5

38.5 - 3.75 = 34.75

34.75 + 5. = 39 . 75

Under any given transformation, an image is an original image while the pre-image is the new image.

A. True
B. False

Answers

Answer:

This has some fact to it. Its sorta tricky but I'd say False.

Step-by-step explanation:

Find the measure of each numbered angle.

Answers

Answer:

Angle 1 - 148

Angle 2 - 32

Angle 3 - 73

Angle 4 - 148

Angle 5 - 105

Step-by-step explanation:

Angle 1 forms a line with angle 32 and equals 180, therefore Angel 1 = 180 - 32 = 148

Angle 2 has the same value as the opposing angle, 32

Angle 3 combined with 32 and 75 equals 180, therefore

Angle 3 = 180 - 32 - 75

Angle 3 = 73

Angle 4 is equal to angle 1

Angle 5 combined with 43 and Angle 2 (32) equals 180

Angle 5 = 180 - 43 - 32

Angle 5 = 105

circle with a center of (4,6) and a us of 10 units. which equation represents the circle

Answers

Answer: (x-4)²+(y-6)²=100

Explanation: Write the equation in standard form. Substitute h for x and k for y in the form of (h,k). Since the radius equals 10, square the radius and you should get 100. Put everything back together and you should get, (x-4)²+(y-6)²=100.

(x-4)²+(y-6)² =100 is the equation of the circle with a center of (4,6) and a radius of 10 units

What is Circle?

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

The standard equation of a circle is (x-h)²+(y-k)² =r²

In the equation (h, k) represents the center of the circle.

r is the radius of the circle.

From given that circle with a center of (4,6) and a radius of 10 units.

We need to find the equation of the circle.

Substitute h=4, k=6 and r=10

We get  (x-4)²+(y-6)² =10²

Hence,   (x-4)²+(y-6)² =100 is the equation of the circle with a center of (4,6) and a radius of 10 units.

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1. What is the central measure found by adding all numbers in the data set and then dividing by the number of values
A. data
B. mean
C. median
D. mode​

Answers

Answer:

mean will be find in that method

hence, correct option is B

Help its due rn!!!!!!!!!! Please

Answers

Answer:

C po

Step-by-step explanation:

sana maka tulong po sayo

What it is the surface area of a perfect square pyrimaid when the slant height is 1 and the base width is 3?

Answers

Answer:

15

Step-by-step explanation:

The base would be 3*3, as it's a square. There are 4 triangles, and the area of each triangle is 1*3/2=1.5. 1.5*4+9=15.

Please help quickly :D

Answers

Hope this help!!!

Have a nice day!!!

The polygons are similar, but not necessarily drawn to scale.

Answers

C, 9 because the scale factor is 1.5 so 6x1.5
The answer is 9.
18/27 = 2/3 and 6/9 = 2/3

Algebra evaluate each expression if a = -3 ,b= - 4 , and c = 5

what is 1. 5bc

Answers

-30 is the answer to your question

You want to invest in companies belonging to Gispa Group of
1
Companies, Inc. so you did some research and found out that companies belonging to this group has an average gain of
0.8
percent and standard deviation of
0.7
percent. Given that a positive percent (gain) means profit and a negative percent means a loss. If you choose
20
companies, what is the probability that the companies are gaining more than
1
percent?

Answers

Answer:

0.1007

Step-by-step explanation:

Given :

Average gain, μ = 0.8

Standard deviation, σ = 0.7

Number of companies, n = 20

Obtaining the standardized value ;

Zscore = (x - mean) / (σ/√n)

Zscore = (1 - 0.8) / (0.7/√20)

Zscore = (0.2 / 0.1565247)

Z = 1.27775

Using the Z probability calculator :

P(Z > 1.27775) = 0.10067

P(Z > 1.27775) = 0.1007 ( Z probability calculator)

Which option please I need help ASAP reply ASAP

Answers

Answer:

The answer is probably c

Step-by-step explanation:

its deducted by the x axis

Answer:

B

Step-by-step explanation:

Please help
this is important (is a activity )

Answers

Answer:

y = 5

Step-by-step explanation:

This is a horizontal line.  The value of y does not change

The equation is of the form y = constant

y = 5

Answer:

y = 5

Step-by-step explanation:

(PLEASE HELP + POINTS)

Use the drawing tool(s) to form the correct answer on the provided number line.
Solve the equation, and plot the solution(s) on the provided number line.

(Picture included)

Answers

Answer:

x = 4

Step-by-step explanation:

2/3x + 1/6 = 4/3x

Easiest way to solve is by multiplying the entire equation by 6x.

6x (2/3x + 1/6 = 4/3x)

4 + x = 8

subtract 4 rom both sides

x=4

Pls help this is due soon!!!

Answers

19 for the far left!!!!



Please help I will award brainless to whoever helps please it’s urgent

Answers

Answer:

128 sq units :)

Step-by-step explanation:

hope this helps! have a great day :)

which one is greater 27.532 or 27.523

Answers

Answer: 27.532

Step-by-step explanation:

0.53>0.52

Answer:

27.532

27.532 is greater because .532 is greater than 523

ASAP!!!!!
Ms. Rodrigo’s class plays soccer during gym every 12 days. Mr. Tate’s class plays soccer every 8 days. If both classes are playing soccer today, how many days will it be before they both are playing soccer on the same day again?

Answers

It will be 24 days before the both play soccer on the same day again.

solve the simultaneous equation 2x+5y=6 and 5x-2y=9​

Answers

Answer:

[tex]x = \frac{57}{29} \ , \ y = \frac{12}{29}[/tex]

Step-by-step explanation:

                            2x + 5y = 6     --------( 1 )

                            5x - 2y = 9     --------( 2 )

                        _____________

     ( 1 ) x 5 =>     10x + 25y = 30   -----------( 3 )

     ( 2 ) x 2 =>    10x - 4y = 18       ----------- ( 4 )

                       ______________

    ( 3 ) - ( 4 ) =>    0 +  29y = 12

                                   [tex]y = \frac{12}{29}[/tex]

Substitute y in ( 1 ) =>

                            [tex]2x + (5 \times \frac{12}{29}) = 6\\\\2x + \frac{60}{29} = 6\\\\2x = 6 - \frac{60}{29}\\\\2x = \frac{174 - 60}{29}\\\\x = \frac{114}{29 \times 2}\\\\x = \frac{57}{29}[/tex]

The population of the African country of Madagascar in 2018 is about 26 million. The estimated population of Madagascar is given by the function P(t)=26(1.03)t , where t represents the time in years since 2018 and P(t) represents the population in millions.
part a. In 2020 , the population will be blank million
part b. What is the meaning of P(t)=50 ?


The population 50 years after 2018 is P(t) ,
The population 50 years after 2018 is cap p times t, ,

The population t years after 2018 is 50 million.
The population t years after 2018 is 50 million.

The population 50 years after 2018 is 50 million.
The population 50 years after 2018 is 50, million.

The population t years after 2018 is about 114 million.

Answers

Answer:

The current population of Madagascar is 28,354,778 as of Thursday, June 10, 2021, based on Worldometer elaboration of the latest United Nations data.

Madagascar 2020 population is estimated at 27,691,018 people at mid year according to UN data.

Madagascar population is equivalent to 0.36% of the total world population.

Madagascar ranks number 51 in the list of countries (and dependencies) by population.

The population density in Madagascar is 48 per Km2 (123 people per mi2).

The total land area is 581,795 Km2 (224,632 sq. miles)

38.5 % of the population is urban (10,670,252 people in 2020)

The median age in Madagascar is 19.6 years.

Step-by-step explanation: i dont know man

calculate (2.8+1.36)÷(4-2.7)​

Answers

The answer is 3.2

Hope this answer is right!

A particular medicine decays at a rate of 16% every 4 hours. If a person takes a 25 mg dose, answer
the following questions.
a. Write a function that represents the amount of medicine after h hours.
b. How much is left after 4 hours? 8 hours?

Answers

Answer:

25 x 0.84 ^ h = X

After 4 hours there will be 12.45 milligrams of the medicine, and after 8 hours there will be 6.20 milligrams of it.

Step-by-step explanation:

Given that a particular medicine decays at a rate of 16% every 4 hours, if a person takes a 25 mg dose, to write a function that represents the amount of medicine after h hours, and determine how much is left after 4 hours and 8 hours, the following calculations must be performed:

100 - 16 = 84

25 x 0.84 ^ h = X

25 x 0.84 ^ 4 = X

25 x 0.4978 = X

12.45 = X

25 x 0.84 ^ 8 = X

25 x 0.2478 = X

6.20 = X

Therefore, after 4 hours there will be 12.45 milligrams of the medicine, and after 8 hours there will be 6.20 milligrams of it.

a cone with base circumference 6 pi and
a height equal to half the radius

Answers

The height is 1.5
The volume is42.39

A cone with a base circumference of 6 pi and a height equal to half the radius. The volume of the cone is 42.39.

What is the volume of a cone?

The volume of the cone is the product of one-third of the height, pie, and square of the radius.

The volume of the cone = 1/3 [tex]\pi r^{2} h[/tex]

A cone with a base circumference of 6 pi and a height equal to half the radius.

The circumference of the circular base = 2πr

                                                        6π  =  2πr

                                                          r = 3

The radius of the circular base of a cone is 3 unit.

A height equal to half the radius. Thus, the height is 1.5

The volume of the cone = 1/3 [tex]\pi r^{2} h[/tex]

                                         = 1/3 (3.14) (9)(1.5)

                                         =  42.39

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The boys and girls soccer clubs are fundraising for new uniforms. The boys soccer club is selling candy bars for $2 a piece. The girls soccer club is selling candles for $4. They must raise more than $800. The girls expect to sell at least 100 candles. Write a system of inequalities to represent the situation
Inequality 1:
Inequality 2:

Answers

Answer:

2b + 4c = 800

c > 100

Step-by-step explanation:

The two linear inequalities are 2S+4C>800

and C[tex]\geq[/tex]100

It is given that The boys soccer club is selling candy bars for $2 a piece. The girls soccer club is selling candles for $4.They must raise more than $800. The girls expect to sell at least 100 candles. We have to write this situation in system of linear equality

What is system of linear inequalities?

A system of linear inequalities in two variables consists of at least two linear inequalities in the same variables.

The soccer ball is denoted by S and Candles by C

Therefore 2S+4C>800 (We use > symbol for More than)

and C[tex]\geq[/tex]100

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Find the perimeter & area of the following shape.Hint: Look to the opposite sides to figure out the missing sides.

Answers

Answer:

Perimeter=110mm

Area=370mm²

Step-by-step explanation:

In Attached pictures

please give me brainliest if it help you

A ball is dropped from a height of 5m. After each bounce it rises to 35% of its previous height. After how many bounces does the ball reach a Height of less than 50cm?

Answers

Answer:

After the third bounce the ball reaches a height of less than 50cm.

Step-by-step explanation:

Geometric sequence:

In a geometric sequence, the quotient between consecutive terms is always the same, and it's called common ratio. The nth term of a geometric sequence is given by:

[tex]A_n = A_0(r)^{n}[/tex]

In which [tex]A_0[/tex] is the first term and r is the common ratio.

A ball is dropped from a height of 5m.

This means that [tex]A_0 = 5[/tex]

After each bounce it rises to 35% of its previous height.

This means that [tex]r = 0.35[/tex]

Thus

[tex]A_n = A_0(r)^{n}[/tex]

[tex]A_n = 5(0.35)^{n}[/tex]

After how many bounces does the ball reach a Height of less than 50cm?

50cm = 0.5m. This is n for which [tex]A_n = 0.5[/tex]. Thus

[tex]A_n = 5(0.35)^{n}[/tex]

[tex]0.5 = 5(0.35)^{n}[/tex]

[tex](0.35)^n = \frac{0.5}{5}[/tex]

[tex](0.35)^n = 0.1[/tex]

[tex]\log{(0.35)^n} = \log{0.1}[/tex]

[tex]n\log{0.35} = \log{0.1}[/tex]

[tex]n = \frac{\log{0.1}}{\log{0.35}}[/tex]

[tex]n = 2.19[/tex]

Rounding up:

After the third bounce the ball reaches a height of less than 50cm.

Write as an equation: When -2 is subtracted from w, the result is 49

Answers

Step-by-step explanation:

w-(-2)=49

or, w+2=49

or, w= 47

which is the required equation.

Answer:

[tex]{ \bf{w - ( - 2) = 49}} \\ \\ { \boxed{ \tt{w + 2 = 49}}}[/tex]

Please help me with this it's urgent!

Answers

I think it’s number 1

Answer:

I think finite

Step-by-step explanation:

What’s is the answer plzzzz help

eacg fruit basket has 5 apples and 3 pears . what is the ratio of the total number of fruits to the numbers of pears in each fruit basket ?

Answers

Answer:

The ratio is 5:3 because there are 5apples and 3 pears

The ratio is 5:3 because there are 5apples and 3 рears
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