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
WINSTONCH [101]
3 years ago
7

A golfer hits a ball from a starting elevation of 4 feet with a velocity of 70 feet per second down to a green with an elevation

of −5 feet. The number of seconds t it takes the ball to hit the green can be represented by the equation −16t2 + 70t + 4 = −5. How long does it take the ball to land on the green?
Mathematics
1 answer:
mafiozo [28]3 years ago
7 0

Answer:

t = 4.5 seconds

Step-by-step explanation:

It is given that, a golfer hits a ball from a starting elevation of 4 feet with a velocity of 70 feet per second down to a green with an elevation of −5 feet.

The number of seconds t it takes the ball to hit the green can be represented by the equation as follows :

-16t^2 + 70t + 4 = -5\\\\-16t^2 + 70t + 9=0......(1)

We need to find time taken by the ball to land on the green. Solving the quadratic equation (1) we get :

t = -0.125 s and t = 4.5 s

Ignoring t = -0.125 s, we get the time taken by the ball to land on the green is 4.5 seconds.

You might be interested in
Find the equation of a line parallel to y=6 that passes through (4,3)
ozzi

Answer: 4

Step-by-step explanation:

8 0
3 years ago
A^2+2ab+b^2. solve for a=10 and b=50
qaws [65]
A² + 2ab + b² ; Solve when a=10 & b=50

Simply plug in 10 for a and 50 for b in our given equation :)

(10)² + 2(10)(50) + (50)²

Simplify.

100 + 20(50) + 2500

Simplify.

(100 + 2500) + 1000

Simplify.

2600 + 1000

Simplify.

3600

Hope I helped! :)

3 0
3 years ago
Explain how to use division to find an<br> equivalent fraction for 9/12
Novosadov [1.4K]

Answer:

3/4

Step-by-step explanation:

You can simplify it by looking for what divides into both numbers. The lowest possible number is 3 because it can go into both 9 and 12.

9/3=3

12/3=4

3/4

6 0
3 years ago
Read 2 more answers
If y varies directly with x and y=100 when x=5, what is the value of k?
horrorfan [7]
When it says varies directly, it means that y and x are going to be on opposite sides of the equals sign and that there is a constant, k,

y=kx

Plug in (5,100)

100=k(5)

K=20
7 0
3 years ago
This is division help me
fiasKO [112]
4.6/2= 2.3
0.84/2=0.42
0.93/3=0.31
46/2=23
84/2=42
93/3=31
8 0
3 years ago
Read 2 more answers
Other questions:
  • Please answer this quickly
    6·1 answer
  • There are two traffic lights on Broadway. The probability of being stopped at the first light is
    15·1 answer
  • #2 please help find the<br> mean, median, mode and range. <br> Round answers to nearest tenth
    14·2 answers
  • 1 of 5<br>What is the nth term rule of the linear sequence below?<br>2,5, 8, 11, 14, ...<br>w<br>Tn​
    11·1 answer
  • Max correctly solved this inequality.
    6·2 answers
  • Kendra wants to put 37 games on 5 shelves. She wants to put the same number of games on each shelf and she will put the remainin
    7·1 answer
  • Evaluate f(2) - f(-1) when f(x) = 6x² - 1
    14·1 answer
  • Does anyone know how to solve this math problem?
    10·1 answer
  • Find 45% of 50 I’m unsure and I need help
    8·2 answers
  • Identify the digit with the given place value in number 173.514 hundredths
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!