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
Rudiy27
2 years ago
15

Aurora hit a baseball with an initial velocity of 70 feet per second at an angle of 30° with the horizontal. The ball hit her ba

t when the ball was 3 feet above the ground.
Part A: No one interferes with the ball. How long does it take the ball to hit the ground?
Round your answer to the nearest hundredth of a second. Show all your work.
Part B: How far did the ball travel horizontally? Use your answer from Part (a) in your calculations. Round your answer to the nearest tenth of a foot. Show all your work.

(Please don't answer unless you have *All The Right Answers!* Please, don't just answer with nonsense, I'm looking at you brainly bot's)
Mathematics
1 answer:
snow_tiger [21]2 years ago
4 0

Answer:

See below

Step-by-step explanation:

Y component of velocity is 70 sin 30°

y position =   3  + 70 sin 30°  * t    - 1/2 a t^2

 when the ball hits the ground  y = 0

       0 = 3 + 70 sin 30°  t  - 1/2 (32.2)t^2

           - 16.1 t^2 + 35t + 3 = 0  

                    Use Quadratic Formula to find t = <u>2.26 seconds</u>

Horizontal component of initial velocity

 70 cos 30°             distance horizontal = 70 cos 30°  * t

                                   = 70 cos 30°  (2.26) =<u> 137.0 ft</u>

                     

You might be interested in
HELP!!!!!ASAP!!!!!!!!!!!PLEASE!!!!!!!!!!NOW!!!!!
Luba_88 [7]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the sum of all of the odd numbers from 1 to 59? <br> Answer 900
jasenka [17]
The sum of all the odd numbers from 1 to 59 is 900.
5 0
3 years ago
Read 2 more answers
I dont understand this question. Also if anyone is on geometry byu part two let me know and we can work together !
damaskus [11]

Answer:

Area of circle R = 75π un² or ≈235.5 un²

Step-by-step explanation:

The problem says that m∠TRS = 120º. The total number of degrees in a circle is 360º. 120º is a third of 360º. Therefore, we can prove that the shaded sector is a third of the circle.

The problem then says that the area of the shaded sector is 25π and we have to calculate the area of the entire circle. Since we already know that the shaded sector is a third of the circle, we can simply multiply 25π by 3 in order to calculate the area of t he entire circle.

25π × 3 = 75π.

Area of circle R = 75π un² or ≈235.5 un²

4 0
3 years ago
16
Tanya [424]

Answer:

2.50

Step-by-step explanation:

Given

(x_1,y_1) = (-1,0.8)

(x_2,y_2) = (0,2)

(x_3,y_3) = (1,5)

(x_4,y_4) = (2,12.5)

Required

The rate of change (b)

The above graph is represented as:

y = ab^x

For: (x_2,y_2) = (0,2);

We have:

y = ab^x

2 = a * b^0

2 = a *1

2 = a

a = 2

For (x_3,y_3) = (1,5),

We have:

y = ab^x

5 = a * b^1

5 = a * b

Substitute a = 2

5 = 2 * b

Divide by 2

2.5 = b

b = 2.5

<em>Hence, the rate of change is 2.50</em>

7 0
3 years ago
What are the coordinates of points x,j,y, and w
Dmitry_Shevchenko [17]
X: 1, 2

J: 1, 5

Y: -3, 5

Start with the x-axis which is the horizontal line, and then the y-axis which is the vertical line, then you just find the dot and the points!
8 0
3 years ago
Read 2 more answers
Other questions:
  • All computers are on sale for 10% off the original price. If x is the original price of the computer, then the function that rep
    8·2 answers
  • 2 x square + 5 x - 3 = 0
    10·2 answers
  • The solution to which inequality is shown?
    8·1 answer
  • Help me solve on number 5 and 6 (solve for x)
    9·1 answer
  • The length of a train car is 50.6 feet. this is 5.8 feet
    8·1 answer
  • A number cube is labeled 1 to 6. Richard Rolle the number Cube 500 times and record the results. About how many times, Richard e
    15·1 answer
  • When all 480 sixth-grade students at Golden State Middle School were polled, results showed that 192 students were dissatisfied
    12·1 answer
  • Suppose that 5% of athletes at a certain university are using steroids or other
    6·1 answer
  • Find the value of B?
    14·1 answer
  • Pls help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!