Use the position equation given below, where s represents the height of the object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in seconds), as the model for the problem. s = −16t2 + v0t + s0 An aircraft flying at 900 feet over level terrain drops a supply package.

(a) How long does it take until the supply package to strike the ground? (Round your answer to three decimal places.) t = sec

(b) The aircraft is flying at 158 miles per hour. How far does the supply package travel horizontally during its descent? (Round your answer to one decimal place.) ft

Answers

Answer 1

Answer:

(a) 7.5 seconds

(b) The horizontal distance the package  travel during its descent is 1737.8 ft

Step-by-step explanation:

(a) The given function for the height of the object is s = -16·t² + v₀·t + s₀

The initial height of the object s₀ = 900 feet

The initial vertical velocity of the object v₀[tex]_y[/tex] = 0 m/s

The time it takes the package to strike the ground is found as follows;

0 = -16·t² + 0×t + 900

900 = 16·t²

t² = 900/16 = 62.25

t = √62.25 = 7.5 seconds

(b) Given that the horizontal velocity of the package is given as 158 miles/hour, we have

158 miles/hour = 231.7126 ft/s

The horizontal distance the package  covers in the 7.5 second of vertical flight = 231.7126 ft/s × 7.5 s = 1737.8445 feet = 1737.8 ft to one decimal place

The horizontal distance the package  travel during its descent = 1737.8 ft.


Related Questions

Which image shows a rotation?

Answers

Answer:

c is the best answer in my mind

Definitely c !! It’s shows a rotation !!

Given__________

there is one,

and only one, line perpendicular to the plane through that point.

Answers

Answer:

plane containing a line

Step-by-step explanation:

In accordance with a plane postulate corollary, it is concluded that, for a given PLANE CONTAINING A LINE, there is one and only one perpendicular line through a given point on the line.

Hence, in this case, the correct complete statement is written as: Given PLANE CONTAINING A LINE there is one, and only one, a line perpendicular to the plane through that point.

Evaluate the expression below when x = 5.
3(2x - 7)​

Answers

Answer:

9

Step-by-step explanation:

Hello!

They want us to find x when x is 5 so we put 5 in for x

3(2(5) - 7)

Now we follow PEMDAS

3(10 - 7)

3(3) = 9

The answer is 9

Hope this helps!

When you roll a dice you are more likely to get a 2 than a 6

Answers

Answer:

You are just as likely to get a 2 as a 6

Step-by-step explanation:

There are six sides on a die 1,2,3,4,5,6

Assuming a fair normal die

P(2) = number of 2's / total = 1/6

P(6) = number of 6's / total = 1/6

You are just as likely to get a 2 as a 6

The size of a television is the length of the diagonal of its screen in inches. The aspect ratio of the screens of older televisions is 4:3, while the aspect ratio of newer wide-screen televisions is 16:9. Find the width and height of an older 35-inch television whose screen has an aspect ratio of 4:3.

Answers

Answer:

The width and height of the old 35-inch television are 28 inches and 21 inches, respectively.

Step-by-step explanation:

35-inch television is a television whose screen has an hypotenuse ([tex]l[/tex]) of 35 inches and the aspect ratio of 4 : 3 means that 4 inches width per each 3 inches height. And by Pythagorean Theorem:

[tex]r_{l} =\sqrt{r_{w}^{2}+r_{h}^{2}}[/tex]

Where:

[tex]r_{l}[/tex] - Hypotenuse rate, dimensionless.

[tex]r_{w}[/tex] - Width rate, dimensionless.

[tex]r_{h}[/tex] - Height rate, dimensionless.

If [tex]r_{w} = 4\,in[/tex] and [tex]r_{h} = 3\,in[/tex], the hypotenuse rate is:

[tex]r_{l} = \sqrt{4^{2}+3^{2}}[/tex]

[tex]r_{l} = 5[/tex]

The width and height of the old television can be found with the help of trigonometric functions:

Width of 35-inch old television ([tex]w[/tex])

[tex]w = l\cdot \cos \theta[/tex]

[tex]w = l\times\left(\frac{r_{w}}{r_{l}} \right)[/tex]

Height of 35-inch old television ([tex]h[/tex])

[tex]h = l\cdot \sin \theta[/tex]

[tex]h = l\times\left(\frac{r_{h}}{r_{l}} \right)[/tex]

Where [tex]\theta[/tex] is the direction of the hypotenuse with respect to width, measured in sexagesimal degrees.

If [tex]r_{w} = 4[/tex], [tex]r_{h} = 3[/tex] and [tex]r_{l} = 5[/tex] and [tex]l = 35\,in[/tex], the width and height of the old 35-inch television:

[tex]w = (35\,in)\times \left(\frac{4}{5} \right)[/tex]

[tex]w = 28\,in[/tex]

[tex]h =(35\,in)\times \left(\frac{3}{5} \right)[/tex]

[tex]h = 21\,in[/tex]

The width and height of the old 35-inch television are 28 inches and 21 inches, respectively.

2. The radius of a circle is 9 cm. Find the area of the circle
(Use 3.14 as the approximation of T.)

Answers

Answer:

Area of a Circle = 254.34 cm²

Step-by-step explanation:

Area of a Circle = π r²

Area of a Circle = 3.14 * 9²

Area of a Circle = 254.34 cm²

what is the equation of the line​

Answers

Answer:

y = -7

Step-by-step explanation:

the value of -7 is constant at the x coordinates

y = -7

x   |   y

-8   |  -7

-6   |  -7

-4   |  -7

-2   |  -7

0    |  -7

2    |  -7

4    |  -7

6    |  -7

8    |  -7

how do reference angles work and how do you find them?

Answers

A 200-degree angle is between 180 and 270 degrees, so the terminal side is in QIII.

Do the operation indicated for that quadrant. Subtract 180 degrees from the angle, which is 200 degrees.

You find that 200 – 180 = 20, so the reference angle is 20 degrees.

hope this helped!

o(* ̄▽ ̄*)ブ

determine whether the fractions 3/6 and 2/4 are equivalent

Answers

Answer:

They are equivalent

Step-by-step explanation:

3/6 is equal to 1/2

2/4 is equal to 1/2

The first four terms of a sequence are shown below:
7,4, 1, -2
Which of the following functions best defines this sequence?
Of(1) = 7, f(n + 1) = f(n) + 3; for nx 1
O f(1) = 7, f(n + 1) = f(n) - 3; for nx 1
O f(1) = 7, f(n + 1) = f(n) – 4; for n 2 1
Of(1) = 7, f(n + 1) = f(n) + 4; for n > 1

Answers

Answer:

second option

Step-by-step explanation:

Given the sequence

7, 4, 1, - 2

There is a common difference d between consecutive terms, that is

d = 4 - 7 = 1 - 4 = - 2 - 1 = - 3

Thus to obtain any term in the sequence from the previous term, subtract 3

Thus

f(1) = 7 , f(n + 1) = f(n) - 3 for n ≥ 1

Rewrite the number in standard form. 3.4 x 10^8

Answers

Answer:

340000000

Step-by-step explanation:

3.4 x 10^8 is in scientific notation.

To change this to standard form you have to multiply 3.4 by 10 to the 8th power. You would be multiplying 3.4 by 10 eight times. It's a positive 8 so you move the decimal point 8 times to the right. If it were a negative then you'd move the decimal to the left.

3.4

↑ moving the decimal 8 times to the right would then make it 340000000

can someone help me in kinda dumb

Answers

Answer:

[tex]\Huge \boxed{\mathrm{d}}[/tex]

Step-by-step explanation:

y is equal to $1.67 per pounds of peanuts

pounds of peanuts = x

y is equal to $1.67 per x

per is for each

y = $1.67 × x

The equation that correctly describes this relation is option d.

Help urgent, which functions are bounded below but not above? Choose all answers that apply.

Answers

Answer:

c, e, f, and i

Step-by-step explanation:

a. is bounded above at y = 1 and below at y = 0

b. is unbounded both above and below

c. is bounded below at y = 0 and unbounded above

d. is unbounded both above and below

e. is bounded below at y = 0 and unbounded above

f. is bounded below at y = 0 and unbounded above

g. is bounded below at y = 0 and bounded above at y = 1

h. is unbounded both above and below

i. is bounded below at y = 0 and unbounded above

j. is unbounded both above and below

If 5 becomes 11 and 12 becomes 25, what does 15 become?

Answers

Answer:

31

Step-by-step explanation:

5---11

12---25

hmmm

isn't that jsut x * 2 + 1?

soooo

15 would be

15*2+1

which is 31

Answer:

31.

Step-by-step explanation:

5+5 = 10 + 1 = 11

12 + 12 = 24 +1 = 25

15 + 15 = 30 + 1 = 31

I don't know I tried to see if that was the pattern. It checks out math wise.

Given the equation 3x+25 =7x-5 which order of operations completely solves for x?

Answers

3x + 25 = 7x - 5

x = ?

3x - 7x = - 5 - 25

-4x = -30

x = - 30 /-4

x = 30/4 or x = 7.5 ✔️

A new Youth Activity Center is being built in Hadleyville. The perimeter of the rectangular playing field is 442 yards. The length of the field is 4 yards less than quadruple the width. What are the dimensions of the playing​ field?

Answers

Answer:

45 yards and 176 yards

Step-by-step explanation:

Perimeter of a rectangular playing field = 2(Length + width)

P = 2(L+W)..................... Equation 1

From the question,

Let the width of the rectangular playing field = x yards,

The the Length = 4x-4 yards.

Given: P = 442 yards.

Substitute these values into equation 1

442 = 2(4x-4+x)

442/2 = 5x-4

221 = 5x-4

5x = 221+4

5x = 225

x = 225/5

x = 45 yards.

Width = 45 yards.

Length = (45×4)-4 yards = 176 yards

Hence the dimensions of the playing field are, 45 yards and 176 yards

0
The commission rate at Toys R Us
is 4%. If the salesman sold $450
in toys how much did he make in
commission?

Answers

he made $18 i believe

Answer:

$18

Step-by-step explanation:

To find a percent of a number, change the percent to a decimal by dividing it by 100, and multiply the decimal by the number.

4% of $450 = 4% * $450 = 0.04 * $450 = $18

Solve for 6x when x=6. I need your guys and girls' help.

Answers

Answer:

36

Step-by-step explanation:

if x=6 you are multiplying 6 by 6..

you substitute 6 in for x in the problem (6x) so it becomes 6 x 6

the you multiply and get 36

Answer: 36

Step-by-step explanation: 6x means the same thing as 6 · x.

In this case, we are given that x = 6.

So we have 6 · 6 which is 36.

what is 40 x 90 in multiplacation

Answers

Answer:

3600

Step-by-step explanation:

We multiple 40 x 90 which is equal to 4 x 10 x 9 x 10.

4 x 9 = 36 and 10 x 10 = 100, so 40 x 90 = 36 x 100 = 3600.

Answer:

The answer is 3,600

Step-by-step explanation:

40x90=3,600

Look at picture for step by step!

Hope this helps!

By: BrainlyAnime

Brainliest would be appreciated!

how to solve slope intercept form with 4y=x+3

Answers

Answer: y = (1/4)x + 3/4

m = 1/4 = slope

b = 3/4 = y intercept

===================================================

Explanation:

The goal is to solve for y.

Divide both sides by 4 and simplify like so

4y = x+3

4y/4 = (x+3)/4

y = (x+3)/4

y = x/4 + 3/4

y = (1/4)x + 3/4

This equation is in slope intercept form y = mx+b

m = 1/4 is the slope

b = 3/4 is the y intercept

The graph is a straight line that goes through (1,1) and (5,2)

Which of the following best describes the term constructions in geometry?

Answers

The options in this question are missing; here is the complete question:

Which of the following best describes the term constructions in geometry?

A. Combining two or more figures together to create a new figure or shape.

B. A way to draw precise figures using a compass and a straightedge.

C. Creating a figure or shape by hand.

D. Places where things are being built that often slow down traffic.

The answer to this question is B. A way to draw precise figures using a compass and a straightedge.

Explanation:

Geometry is a sub-field of mathematics that studies figures, lines, angles, and related features. In this, the term "construction" describes the creation of figures by using a straight edge such as a ruler, a compass (object to draw circles or arcs and measure distances), and a pen, pencil, or similar instrument to draw. For example to draw or construct a circle a compass is mainly used while the construction of a hexagon requires a straight edge and compass. According to these ideas, the correct answer is B.

What is the midpoint between each pair (-1, -5) and (-5, 9)

Answers

Answer: (-3, 2)

==============================================

Explanation:

The x coordinates are -1 and -5. They add to -6. Which is then cut in half to -3

The y coordinates are -5 and 9. They add to 4. This is cut in half to 2.

The midpoint is therefore (-3, 2)

-------

A symbolic way to write this is if you had endpoints (a,b) and (c,d), then the midpoint is [tex]\left(\frac{a+c}{2}, \frac{b+d}{2}\right)[/tex]

Clyde’s truck travels an average distance of 12 miles per gallon of gas. When full, his truck’s tank holds 40 gallons of gas. If the tank is 8 7 empty, about how many more miles can the truck travel before the tank is completely empty?

Answers

You have 10.44 miles left

The truck can travel 60 miles before the tank is completely empty

How to determine the number of miles?

The capacity of the truck is;

Capacity = 40 gallons

When it is 7/8 empty, the amount of gas in the truck is:

Amount  = (1 - 7/8) * 40 gallons

Amount  = 5 gallons

The rate is given as:

Rate = 12 miles per gallon

So, the number of miles it can travel from this point is:

Miles = Amount * Rate

Miles = 5 * 12

Miles = 60

Hence, the truck can travel 60 miles before the tank is completely empty

Read more about rate at:

https://brainly.com/question/14335655

#SPJ9

A business man bought a car at rs 550000 and sold it rs 533500 find his loss percentage ​

Answers

Answer:

Cost price (c.p) = Rs. 550000

selling price (s.p) = Rs. 533500

Loss (l) = c.p - s.p

= Rs. 550000 - Rs. 533500

= Rs. 16500

Now,

Loss percentage = Actual loss * 100%

c.p

= Rs. 16500 * 100%

Rs. 550000

= 3%

Answer:

loss%=3.09%

Step-by-step explanation:

given,s.p=550000

c.p=533500

Now,loss percent= Actual loss /c.p×100%

=16500/53500×100%

=3.09%

What is the cost of 18 toy cars?

Answers

Answer:

  $27

Step-by-step explanation:

Assuming this price list, ...

  4 toy cars cost 6 dollars

  6 toy cars cost 9 dollars

  8 toy cars cost 12 dollars

We recognize that 18 cars is 3 times 6 cars, so the cost will be ...

  cost of 18 cars = 3(cost of 6 cars) = 3($9) = $27

The cost of 18 toy cars is $27.


Brainliest for whoever gets this right!

Make x the subject of the formula

a(x-b)=a^2+bx

Answers

Answer:

[tex]x=\frac{(a^2+ab)}{a-b}[/tex]

Step-by-step explanation:

So we want to make x the subject of the formula:

[tex]a(x-b)=a^2+bx[/tex]

First, distribute the left side:

[tex]a(x)-a(b)=a^2+bx\\ax-ab=a^2+bx[/tex]

Combine all the terms with x with it on one side. To do this, first subtract bx from both sides. The right side cancels:

[tex](ax-ab)-bx=(a^2+bx)-bx\\ax-ab-bx=a^2[/tex]

Remove the -ab from the left. Add ab to both sides. The left side cancels:

[tex](ax-ab-bx)+ab=a^2+ab\\ax-bx=a^2+ab[/tex]

Now, distribute out the x from the left side:

[tex]ax-bx=a^2+ab\\x(a-b)=a^2+ab[/tex]

Divide both sides by (a-b). The left side cancels:

[tex]\frac{(x(a-b))}{a-b}=\frac{(a^2+ab)}{a-b} \\x=\frac{(a^2+ab)}{a-b}[/tex]

Therefore:

[tex]x=\frac{(a^2+ab)}{a-b}[/tex]

Answer:

Step-by-step explanation:

ax -ab = + bx

collect like terms

ax-bx= +ab

factorise

x(a-b)=a(a+b)

x=[tex]\frac{a(a+b)}{a-b}[/tex] or [tex]\frac{a^{2} + ab}{a -b}[/tex]

What is y = -3x+4 and y=-7x

Answers

Answer: (-1,7)

I assume you are asking for the solution to this system. Using substitution, -7x=-3x+4 -> -4x=4 -> x=-1. y=-7(-1)= 7.

Answer:

x=-1   , y=7

Step-by-step explanation:

y = -3x+4 and y=-7x

substitute y=-7x in the equation y = -3x+4

-7x=-3x+4 ( put variable(x) together)

-7x+3x=4

-4x=4

x=-4/4

x=-1

find y: y=-7x  ⇒ y=-7(-1) ⇒ y=7

check :y = -3x+4

7=-3(-1)+4

7=7  ( correct)

How the exponent can be multiplied?

Answers

Answer:

D

Step-by-step explanation:

The answer is D, because it is saying for you to do,

2⁶ multiplied 5 times in a row,

2⁶×2⁶×2⁶×2⁶×2⁶ and this is equal to 2³⁰.

Answer:

Option D

Step-by-step explanation:

Whenever we multiply the same numbers with different exponents, we write the same number and add the exponents.

Example: (1/5)^2 x (1/5)^6

=> (1/5)^2 + 6

=> (1/5)^8

Example: 7^3 x 7^8

=> 7^3+8

=>7^11

Whenever we divide the same number with different exponents, we write the same number and subtract  the exponents.

Example: 9^3 / 9^4

=> 9^3-4

=> 9^-1

Whenever there is an number with the exponent, and there is an exponent outside the bracket, then we multiply.

Example: (2^6)^-5

=> 2^6 x -5

=> 2^-30

So, the Answer is D.

A bucket has 16 inches of water in it but there is a hole in the bottom. Use interval notation to write the domain and range of the function H(x) = 16 - 1.25x, where x is the time the water has been leaking for (in minutes) and is the height of the water (in inches). *

Answers

Answer: range:  {0in, 16in}

               domain {0min, 12.8 min}

Step-by-step explanation:

When we have a function:

f(x) = y.

The range is the set of possible values of y and the domain is the set of all the possible values of x.

In this case, our function is:

H(x) = 16 - 1.25*x

which is a linear equation, and we know that the linear equations are defined (for range and domain) in the set of all the real numbers, but this is a physical situation, so we must see at the real problem.

The bucket can not have more water than the initial amount, 16 inches, so this is the maximum in the range.

The minimum height of water that we can find in the bucket is 0 inches (so the bucket is empty) then this is the minimum of the range.

Then we can write the range as:

R: 0in ≤ y ≤ 16in. = {0in, 16in}

Now we can find the extremes of the domain by using the extremes of the range:

y = 16 = 16 - 1.25*x

       0 = -1.25*x

then we have x = 0min, this will be the minimum of the domain.

Now using the minimum of the range y = 0 we have:

y  = 0 = 16 - 1.25*x

      1.25*x = 16

            x  = 16/1.25 = 12.8 mins

This is the maximum time in the domain (because after this time, there is no water in the bucket)

Then the domain is:

D: 0min ≤ x ≤ 12.8 min

Given x=-3, y=6, and z=-4
-15+(-x)+y=

Answers

x = -3 , y = 6 , z = -4

Take Given equation :

⇒-15 + (-x) + y = 0

substitute values of x and y

⇒-15 + [- ( -3)] + 6

⇒-15 + (3) + 6

⇒-15 + 9

⇒-6

Hence, value of -15 + (-x) + y = - 6

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