1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natima [27]
3 years ago
5

Help me with this question

Mathematics
1 answer:
Svetlanka [38]3 years ago
4 0

Answer:

40.374 ft

Step-by-step explanation:

We assume that the height of the goal on the football field is <em>h </em>(ft)

As it can be seen, the height of the goal is equal to the total of the man's height and the length of AB.

=> h = 5.5 + AB

The triangle ABC in the figure is the right angled triangle with Angle B = 90 degree and BC = 10 ft

In a right triangle, we have the equation as following:

+) tan of an acute angle = length of opposite side/ length of the adjacent side

We have: Angle C = 74 is an acute angle, its opposite side is AB, adjacent side is BC

=> tan Angle C = AB/ BC

=> tan 74° = AB/ 10

=> AB = 10. tan 74° = 34.874 ft

=> h = 5.5 + AB =5.5 + 34.874 = 40.374 ft

You might be interested in
Wendy and two friends went out to eat and decided they would split the bill. The total bill was 35.40. They also decided to leav
marta [7]

Answer:

14.16

Step-by-step explanation:

we first calculate the total amount of money paid, which is 35.40 plus 20%, we use this calculation:

35.40×1.20 = 42.48

now, this amount is split to 3 people, so:

42.48/3 = 14.16

and that is our answer

8 0
1 year ago
30 Pts
Alona [7]

How to find the percent of change between numbers


First: work out the difference (increase) between the two numbers you are comparing.


Increase = New Number - Original Number


Then:  divide the increase by the original number and multiply the answer by 100.


% increase = Increase ÷ Original Number × 100.


If your answer is a negative number, then this is a percentage decrease.


To calculate percentage decrease:

First: work out the difference (decrease) between the two numbers you are comparing.


Decrease = Original Number - New Number


Then: divide the decrease by the original number and multiply the answer by 100.\


% Decrease = Decrease ÷ Original Number × 100


If your answer is a negative number then this is a percentage increase.


If you wish to calculate the percentage increase or decrease of several numbers then we recommend using the first formula. Positive values indicate a percentage increase whereas negative values indicate percentage decrease.

The answer is 24.22%


<span />
8 0
3 years ago
A spherical helium balloon has a diameter of 30 cm. How much helium is needed to fill the balloon, in cubic centimeters? Round y
GaryK [48]
From V= 4/3*pi*r^3 
<span>dV/dt = 4pi(r^2)dr/dt </span>
<span>so when dV/dt=30 and r = 19 </span>
<span>30 = 4pi(361)dr/dt </span>
<span>dr/dt = 30/[4pi(361)] </span>

<span>now in </span>
<span>A = 4pir^2 </span>
<span>dA/dt = 8pi(r)dr/dt </span>
<span>= 8pi(19)*30/[4pi(361)] </span>
<span>= you finish it.</span>
<span>HOPE THIS HELPS.
</span>
3 0
2 years ago
I need fast help with step by step<br> <img src="https://tex.z-dn.net/?f=%5Cint%5Climits%5E2_1%20%7B%5Cfrac%7B3x-1%7D%7Bx%2B1%7D
Ganezh [65]

Answer:

1.38 to the nearest hundredth.

Step-by-step explanation:

Dividing:

x + 1 ) 3x - 1 ( 3            

          3x + 3

                -4

so (3x - 1) / (x + 1) =  3  - 4 / x+ 1

Integral  of (3  - 4 / x+1 )  = 3x - 4 ln(x + 1)

Between  limits of 1 and 2 we have:

(3(2) - 4 ln 3) - (3 - 4 ln2)

=  1.6056 - 0.2274

= 1.3782.

5 0
3 years ago
What is mechanical energy? Give an<br> example,
Inessa [10]

Answer:

mechanical energy ✨ is a form of energy it is all the energy that an object has because of it motion

Step-by-step explanation:

like an bow and arrow or hitting a hammer on a nail

5 0
3 years ago
Other questions:
  • Two mechanics can assemble 10 bicycles in 8 hours. How many bicycles could one mechanic assemble in 8 hours?
    8·1 answer
  • colton is playing with interlocking blocks that are each 3/4 inch tall. He makes a tower 17 blocks tall.How tall is his tower in
    15·1 answer
  • Which system of equations is represented by the graph?
    6·2 answers
  • Solve for x, x-6≤3 simplify
    12·2 answers
  • Alone, Brenda can dig a ditch in 5 hours. If Jack helps her, the two of them can dig
    15·1 answer
  • What is the solution set to three parallel lines
    9·2 answers
  • E) What is the measure of
    15·1 answer
  • Can someone give me an albgebraic real world example that’s original
    11·1 answer
  • What goes in the blanks? (a2 +___+1)−(___+5a+___)=4a2 −2a+7
    9·2 answers
  • (X+9)(x-2)-9x-6 is equivalent to?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!