A tree of 14 m height is broken by the wind so that its top
touches the ground and makes an angle 60° with the ground. Find
the length of the broken part of the tree.

Answers

Answer 1

Answer:

The answer is:

[tex](56 - 28 \sqrt{3} )m[/tex]

Step-by-step explanation:

Let the broken part is (x) m

so other part is (14-x) m

[tex] \sin(60) = \frac{14 - x}{x} [/tex]

[tex] \sin(60) = \frac{ \sqrt{3} }{2} [/tex]

[tex] = x = (56 - 28 \sqrt{3} )m[/tex]


Related Questions

Jason's summer job allowed him to save $1200
to use as spending money throughout the
upcoming school year. To make sure he has
enough money, Jason plans to spend the same
amount each month and not run out of money
until the end of the school year in 10 months.
120x + y = 1200

Answers

Answer:Slope=-240.000/2.000=-120.000

Step-by-step explanation:Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    120*x+y-(1200)=0

STEP

1

:

Equation of a Straight Line

1.1     Solve   120x+y-1200  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

HELPPPPPPPPPpppp med

Answers

Step-by-step explanation:

Using the formula:

Sin=Perpendicular ÷ Hypotenus

Sin = 35 ÷ 48

Sin = 0.7291666667

= Sin^-1 (0.7291666667)

=46.8165782066

where = Degree.

Hence final answer is 46.816

I hope this is right.....

What is the rate of change and y intercept

Answers

Answer:

5

Step-by-step explanation:

In PQR, P = 90°, Q = 40° and PR =9cm. Find the length of QR .​

Answers

Answer:

QR = 14.00 cm to the neatest hundredth.

Step-by-step explanation:

This is a right triangle with < P = 90.

So QR is the hypotenuse.

< Q is the angle opposite to the line PR.

sin Q = opposite/hypotenuse = PR/QR

sin 40 = 9/QR

QR = 9/sin40

= 14.002 cm.

vertex (-3, -3), point (2,97) find equation of parabola in vertex form

Answers

Answer:

y = 4(x+3)^2 - 3

Step-by-step explanation:

Vertex form  y = a(x+3)^2 -3    sub in   2,97   to calculate a

                     97 = a(2+3)^2 - 3

                        a = 4

(3x-4)^2=22 identify the solutions to the quadratic equation by taking the square root

Answers

[tex]~~~~(3x-4)^2 = 22\\\\\implies 3x-4 = \pm\sqrt{22}\\\\\implies 3x = 4 \pm\sqrt{22}\\\\\implies x = \dfrac{4\pm \sqrt{22}}3 \\\\\text{Hence,}~~ x = \dfrac{4+ \sqrt{22}}3~~ \text{and}~~ x = \dfrac{4-\sqrt{22}}3[/tex]

Can someone please help me?

Answers

Answer:

24

Step-by-step explanation:

area = wl (6×4 = 24)

w width l length

The sum of two numbers is equal to 272. When the numbers are divided, the quotient is 3 and the remainder is 52. Find the difference of the numbers.

Answers

Answer:

the difference of the numbers are 217 and 55.

Step-by-step explanation:

a+b=272

a/b=3…52

a=3b+52

4b+52=272

4b=220

b=55

a=272-55=217

Peter weighs is 105 kg. His wants to lose 500 g per week. How many weeks will it take for him to have a mass of 90 kg

Answers

Answer:

30

Step-by-step explanation:

500 g = 1/2 kg => 2 weeks he loses 1 kg

105 - 90 = 15 kg

So he needs to take 30 weeks in total. ( 15 * 2)

500g=0.5kg

Let weeks be x

So

105-0.5x=900.5x=105-900.5x=15x=15/0.5x=30weeks

4.
1
Х
4
3.4
X
67°
432
599
Can I please get help with these two !!!

Answers

Answer:

acdfe

Step-by-step explanation

right

Six different names were put into a hat. A name is chosen 125 times and the name Grace is chosen 17 times. What is the experimental probability of the name Grace being​ chosen? What is the theoretical probability of the name Grace being​ chosen? Use pencil and paper. Explain how each probability would change if the number of names in the hat were different.
Question content area bottom

The experimental probability of choosing the name Grace is __
​(Type an integer or a simplified​ fraction.)

Answers

Answer:

Step-by-step explanation:

The experimental probability of choosing Grace is 13.6% (17/125*100)

The theoretical probability of choosing Grace is 16.67% (1/6)

Each probability would change because they depend on the data set so if the data set changes, that means the probability will also change depending on the amount it changes.

Matt has a box that measures 23 feet long and 16 feet wide. The volume of the box is 4,416 cubic feet. What is the height of the box in yards?

Answers

Answer:

ok

Step-by-step explanation:

find the area of this triangle, round to the nearest tenth. I will give brainliest

Answers

Answer:

108.8yd²

Step-by-step explanation:

Area of a Side Angle Side triangle : Area = 1/2 ( a × b ) × sin(c)

where a and b = the side lengths and c = the angle

Here the given side lengths are 23yds and 9.5yds and the angle given has a measure of 85° so a = 23, b = 9.5 and c = 85

Area = = 1/2 ( a × b ) × sin(c)

a = 23 , b = 9.5 and c = 85

Area = 1/2 ( 23 × 9.5 ) × sin(85)

==> multiply 23 and 9.5

Area = 1/2 ( 218.5 ) × sin(85)

==> multiply 1/2 and 218.5

Area = 109.25 × sin(85)

==> multiply sin(85) and 109.25

Area = 108.8yd²

Note: When the triangle is not a right triangle ( when there is no 90° angle ) we have to use a special formula in order to find the area. Here this is given a side an angle and a side, when given a side an angle and another side you can solve using the formula Area = 1/2 ( a × b ) × sin(c)

A farmer need to build a goat pen. The pen will be 5 meters wide and 16 meters long. The fencing material costs $8. 00 per meter. How much will it cost to buy enough fencing material to build the goat pen

Answers

first, find the perimeter: 16 + 16 + 5 + 5 = 42 meters. then multiply 42 by the price of each meter, which is $8.00. 42 x 8 = $336 to build the fence. :D

Answer:

$336

Step-by-step explanation:

Find the perimeter, 5x2 + 16x2 = 10 + 32 = 42

Fencing material = $8 per 1 meter

42 meters, so 42 * 8 = $336

A square box s 12cm wide. What is the area of the box?​

Answers

Answer: 9cm

Step-by-step explanation:

Solve the right triangle.
Round your answers to the nearest tenth.

Answers

Answer: A= 42 degrees

Step-by-step explanation:

A= 180-90-48=42 (degrees)

Answer:

A= 42 degrees

a = 27

c= 40.4

Step-by-step explanation:

48 - 90 = 42 (we know the remaining angle area is 90 because its a right triangle and a traingle is 180 degrees)

to find the answer of a we need to use tan(48) and when you convert that to radians you get 1.1106 ish tan is opposite over adjacent and we know the opposite is 30 but we dont know a so we put [tex]\frac{30}{a}[/tex] = 1.1106 and put a on both sides so you divide 30 by 1.1106 and dget 27.0124 and round to the nearest tenth to get 27

to find c you need to find the hypotanuse which is [tex]a^{2}[/tex]+[tex]b^{2} =c^{2}[/tex]

30 squared is 900 add that to 27 squared which is 729 and you get 1629

find the square root of 1629 to get 40.3608 and then round that to the nearest tentth to get 40.4

Name the decimal illustrated by this model.

Answers

Answer:

1.97

Step-by-step explanation:

1 whole square is filled so that would equal 1

97 out of 100 squares in the second is filled so it would be = 0.97

combine them:

0.97+1=1.97

Don't Send links, don't Write random things and get the points for free.

Answers

Answer:

Option D, [tex]2010\ cm^3[/tex]

Step-by-step explanation:

Step 1:  Determine the volume of a single cylinder

[tex]V=\pi r^2h[/tex]

[tex]V=\pi *(4\ cm)^2 * 10\ cm[/tex]

[tex]V = 3.14 * 16\ cm^2 * 10\ cm[/tex]

[tex]V = 502.4\ cm^3[/tex]

Step 2:  Determine the total volume

[tex]502.4\ cm^3 * 4[/tex]

[tex]2,009.6\ cm^3[/tex]

Answer: Option D, [tex]2010\ cm^3[/tex]

Answer:

The last one :)

Step-by-step explanation:

I hoped this helped have a good day! <3

Which system of equations is better represented by this graph

Answers

J- y=x+4, y=-2x-4
I recommend you use Desmos graphing calculator it makes things way easier

20 points and brainliest to the best correct answer, do and show work for numbers 13 and 15. Questions are in the photo, thank you.

Answers

Answer:

  13. x=11; MN=65°; NP=115°; NQP=245°

  15. x=9; AD=108°; BC=23°; DC=139°; DBC=221°

Step-by-step explanation:

13.

The marked arcs are congruent, so we can equate the given expressions for their measures:

  10x -45 = 6x -1

  4x = 44 . . . . . . . . . add 45-6x

  x = 11 . . . . . . . . . . divide by 4

The arc measures are found by using the value of x in the corresponding expression. Arcs around a circle total 360°.

  arc MN = (10(11) -45)° = 65°

  arc NP = 180° -65° = 115°

  arc NQP = 360° -NP = 245°

__

15.

The sum of arcs around a circle is 360°. We can use this fact to write an equation involving the given expressions. Clockwise from A, we have ...

  90 +(2x +5) +(17x -14) +12x = 360

  31x = 279 . . . . . . . subtract 81, collect terms

  x = 9 . . . . . . . . . divide by 31

The arc measures are found by using the value of x in the corresponding expression.

 arc AD = 12(9)° = 108°

  arc BC = (2(9) +5)° = 23°

  arc DC = (17(9) -14)° = 139°

  arc DBC = 360° -DC = 221°

Find the surface area please!!! Ignore my writing

Answers

Answer:

240m2 (square metre)

Step-by-step explanation:

Just too smart.

please help me!
What is the molarity of a solution composed of 5.85g of K dissolved in 0.125L of Water? Molar Mass for Ki= 166.1g/mol.

a. .282M
b. .182M
c. .0028M
d. 3.28M

Answers

Answer:butt no ayes

Step-by-step explanation:10 is a yes is no

Work out the missing value in the calculation below​

Answers

Answer:

5

Step-by-step explanation:

[tex]\frac{2}{3} +\frac{1}{6}= \frac{ }{6} \\[/tex]

Here LCM will be 6. (We made the denominator same)

so, now the equation will be :

[tex]\frac{2}{3}+\frac{1}{6} \\\\ =\frac{4}{6} + \frac{1}{6}[/tex]

= 5/6

So, the value in the red box is 5.

Hope it helps!

Solve the system of equations using elimination: -5x - 8y = -8 and
6x +9y = 12. Please help and explain how to solve

Answers

Hope this helps !!!!!!!!!!!!

Does Anyone know #19?

Answers

[tex]\text{Endpoints of diameter,}~~ A(4,6)~ \text{and}~ B(-3,-1)\\\\\text{Diameter,}~AB = \sqrt{(4+3)^2+(6+1)^2}\\\\~~~~~~~~~~~~~~~~~~~=\sqrt{7^2+7^2}\\\\~~~~~~~~~~~~~~~~~~~=7\sqrt2\\\\\text{So , radius}~ = \dfrac{AB}2 = \dfrac{7\sqrt 2}2 =4.9~\text{units.}\\\\\text{Hence the answer is B.}[/tex]

The base of a solid is a circle centered at the origin with a radius r, and every plane section perpendicular to a diameter is a square. What is the volume of the solid

Answers

The volume of the solid whose base is a circle centered at the origin with a radius r is 16r³/3 cubed unit.

What is the equation of circle?

The equation of the circle is the equation which is used to represent the circle in the algebraic equation form, with the value of center point in the coordinate plane and measure of radius.

The equation of the circle can be given as,

[tex]x^2+y^2=r^2[/tex]

Here, (r) is the radius of the circle.

Rewrite this equation as,

[tex]y^2=r^2-x^2\\y=\sqrt{r^2-x^2}[/tex]

This will give you the half the length of the side. Thus, the length of the side of the square is,

[tex]s=2y=2\sqrt{r^2-x^2}[/tex]

The area of the square it square of its side. Thus, the area of the square is,

[tex]A(x)=s^2\\A(x)=(2\sqrt{r^2-x^2})^2\\A(x)=4(r^2-x^2})[/tex]

The volume of the solid can be got by integrating the area of the cross-section.

[tex]V=\int\limits {A(x)} \, dx[/tex]

Here, A(x), provides the area of the square at the point x. Thus,

[tex]V=\int\limits {A(x)} \, dx\\V=\int\limits_{-r}^r {4(r^2-x^2)} \, dx\\V=[ {4(r^2x-\dfrac{x^3}{3})}]^r_{-r}\\V= {4(r^2(r)-\dfrac{(r)^3}{3})}- {4(r^2(-r)-\dfrac{(-r)^3}{3})}\\V=4[r^3-\dfrac{r^3}{3}}+ {r^3-\dfrac{r^3}{3}]\\V=\dfrac{16r^3}{3}[/tex]

Thus, the volume of the solid whose base is a circle centered at the origin with a radius r is 16r³/3 cubed unit.

Learn more about the equation of circle here;

https://brainly.com/question/1506955

MODELING WITH MATHEMATICS The population P (in thousands) of Austin, Texas, during a recent decade can be approximated by y = 494.29 * (1.03) ^ f , where is the number of years since the beginning of the decade. a. Tell whether the model represents exponential growth or exponential decay b. Identify the annual percent increase or decrease in population . Estimate when the population was about 590,000 .

Show work

Answers

Answer:

a) growth

b) 3%

c) 6 years (since the beginning of the decade)

Step-by-step explanation:

Given:

The population P (in thousands) of Austin, Texas during a recent decade can be approximated by [tex]y=494.29(1.03)^t[/tex] when t is the number of years since the beginning of the decade.

General form of an exponential function: [tex]y=ab^x[/tex]

where:

a is the y-intercept (or initial value)b is the base (or growth factor)x is the independent variabley is the dependent variable

If [tex]b > 1[/tex] then it is an increasing function

If [tex]0 < b < 1[/tex] then it is a decreasing function

a) The model represents exponential growth as 1.03 > 1

b) The annual percent increase of the population is 3%

1.03 - 1 = 0.03

0.03 x 100 = 3%

c) To estimate when was population about 590,000 set y = 590 and solve for t:

[tex]\implies 590=494.29(1.03)^t[/tex]

[tex]\implies \dfrac{590}{494.29}=(1.03)^t[/tex]

Take natural logs of both sides:

[tex]\implies \ln\left(\dfrac{590}{494.29}\right)=\ln (1.03)^t[/tex]

[tex]\implies \ln\left(\dfrac{590}{494.29}\right)=t\ln (1.03)[/tex]

[tex]\implies t=\dfrac{\ln\left(\dfrac{590}{494.29}\right)}{\ln (1.03)}[/tex]

[tex]\implies t=5.988069001...[/tex]

Therefore the population was about 590,000 6 years since the beginning of the decade.

If you were graphing y < -3x + 5, would you need a solid or broken line?



solid



broken

Answers

Answer:

broken

Step-by-step explanation:

when there isn’t an equals sign the line will always be broken

If a car travels 213 miles in 3 hours, how many miles will the car drive in 5 hours? pls help

Answers

Answer:

355 miles

Step-by-step explanation:

Figure out how far the car travelled in 1 hour - 3 hours can be divided by 3 for 1 hour, so do the same for the miles - 213 / 3 = 71 miles.

So we know the car travelled 71 miles in 1 hour.

Now just multiply the miles by 5 to figure out the answer - 71 * 5 = 355 miles

:)

What is the solution to 8x - 3(2x - 4) = 3(x - 6)? 6 2 30 No solution

Answers

Answer:

The correct answer would be C) 30

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