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
AveGali [126]
2 years ago
6

A narrow arch supporting a stone bridge is in the shape of half of an ellipse and is 24 meters long and 8 meters high. A person

standing at one location throws a rubber ball against the arch. No matter what direction the ball is thrown it always bounces off the arch once and strikes the same point on the ground. What is the distance between he person throwing the ball and the point on the ground at which the ball first strikes
Mathematics
1 answer:
fenix001 [56]2 years ago
5 0

Answer:

X=17.9m

Step-by-step explanation:

Length of arc L_a=24m

Height of arc H_a=8m

Tet the length on the ground be

2a=24\\ a=12m

Generally the Pythagoras equation is mathematically given by

a^2=b^2+c^2

c^2=a^2+b^2

c^2=12^2+8^2

c^2=144^2+64^2

c=8.9

Therefore the distance between he person throwing the ball and the point on the ground at which the ball first strikes X

X=2c\\X=2*8.9

X=17.9m

You might be interested in
Al principio Eduardo y Adrián tenían el mismo número de dulces. Eduardo le dio a Adrián la mitad de los dulces que tenía. Despué
Dennis_Churaev [7]

Answer:

Al final, Eduardo tenía 20 dulces.

Step-by-step explanation:

Dado que al principio Eduardo y Adrián tenían el mismo número de dulces, y Eduardo le dio a Adrián la mitad de los dulces que tenía, y después, Adrián le dio a Eduardo la mitad de los dulces que tenía él en ese momento, así que a Adrián le quedaron 12 dulces, para determinar cuántos dulces tenía Eduardo al final se debe realizar el siguiente cálculo:

Eduardo 1X = Adrián 1X

Eduardo 0.5X = Adrián 1.5X

Eduardo 1.25X = Adrián 0.75X

0.75 X = 12

X = 12 / 0.75

X = 16

1.25 X = 16 x 1.25 = 20

Así, al final, Eduardo tenía 20 dulces.

6 0
2 years ago
Can someone please help me with this?
Leokris [45]
We know, the measure of whole circle = 360
So, ACB = 360 - AOB
ACB = 360 - 30
ACB = 330

In short, Your Final Answer would be Option A

Hope this helps!
7 0
3 years ago
Read 2 more answers
Please help with this
xenn [34]

Answer:

Step-by-step explanation:

a

5 0
2 years ago
Read 2 more answers
9 stores is 3% of how many stores?
hichkok12 [17]
Hello there! We can solve this question by writing and solving a proportion. Set it up like this:

9/x = 3/100.

This is because 9 is 3% of x number of stores and percents are parts of 100. Setting it up like this will help us get the correct answer. Cross multiply the values . 9 * 100 is 900 and 3 * x = 3x. You get 900 = 3x. Now, divide each side by 3 to isolate the x. 3x/3 cancels out the x. 900/3 is 300. There. x = 300. 9 stores is 3% of 300 stores.
3 0
3 years ago
Read 2 more answers
Mrs delles spent 120$ on a bag that was discounted 25%, what was the original price.
luda_lava [24]

Answer:

480

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • An ad for a laptop claims that the laptop weighs 10% less than its main competitor. If the competitor's laptop weighs 1.1 kilos,
    14·2 answers
  • A car traveled a distance of 180 miles in 4 hours. Traveling at the same speed, what distance would this car travel in 9 hours?
    11·2 answers
  • Solve the equation 9r - 2 = 16 for r.<br> A) 1<br> B) 2<br> C) 4<br> D) 6
    12·1 answer
  • Complete the first step in the solution<br> X\3= 11
    15·2 answers
  • Identify all of the solutions of _______
    11·2 answers
  • Can anyone help with this question.
    11·1 answer
  • Please help me answer this question.
    9·1 answer
  • Which Wampanoag leader took a stand against English moving into Indian lands near Plymouth?
    7·1 answer
  • Please help me find the answer
    11·2 answers
  • Plz help I’m stuck and I can’t answer
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!