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
GenaCL600 [577]
3 years ago
5

A ball is thrown from a height of 67 meters with an initial downward velocity of 5/ms . The ball's height h (in meters) after t

seconds is given by the following h=67-5t-5t^2. How long after the ball is thrown does it hit the ground?
Mathematics
1 answer:
Ivanshal [37]3 years ago
6 0
<span>3.19459 seconds
   Since we've been given the equation for how high the ball is at t seconds, all we need to do is solve for a height of 0. So h = 67 - 5t - 5t^2 0 = 67 - 5t - 5t^2 And you should immediately notice that we have a quadratic equation with A = -5, B = -5, and C=67. Use the quadratic formula to determine the roots of -4.19459 and 3.19459. Since we can't have negative seconds, that means that the ball will hit the ground 3.19459 seconds after it was thrown.</span>
You might be interested in
In three plays, a football team loses five yards and then gains 32 yards by completing a pass. Then a penalty was called and the
masha68 [24]
The team only gained 7 yards
7 0
3 years ago
10Hello, can you help me with this? How much is 5 raised to 5?​
vesna_86 [32]

Answer:

A 5 by 5 Power in Trust is a clause that lets the beneficiary make withdrawals from the trust on a yearly basis. The beneficiary can cash out $5,000 or 5% of the trust's so-called fair market ...

Step-by-step explanation:

5^5

=5*5*5*5*5

=5^5

=3125

6 0
3 years ago
Please help if you can ik it is Pythagorean theorem
kicyunya [14]

Step-by-step explanation:

A = (1/2)bh ---> h = 2A/b = 2(12 cm^2)/(5 cm) = 4.80 cm

---> x^2 = h^2 + (b/2)^2

= (4.8 cm)^2 + (2.5)^2

= 23.04 cm^2 + 6.25 cm^2

or x = 5.41 cm

Therefore, the perimeter P is

P = 2x + b = 2(5.41 cm) + 5 cm = 15.8 cm

5 0
2 years ago
The mean monthly car payment for 123 residents of the local apartment complex is $624. What is the best point estimate for the m
Natali [406]

Answer:

The best point estimate for the mean monthly car payment for all residents of the local apartment complex is $624.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

In this question:

We apply the inverse Central Limit Theorem.

The mean monthy car payment for 123 residents of the local apartment complex is $624.

So, for all residents of the local apartment complex, the best point estimate for the mean monthly car payment is $624.

3 0
3 years ago
What goes into 8 and 18
Lunna [17]

Step-by-step explanation:

common factor 8 and 18 is 2.

6 0
2 years ago
Read 2 more answers
Other questions:
  • Given a graph for the transformation of f(x) in the format g(x) = f(kx), determine the k value. two parabolas open up with f of
    11·1 answer
  • 6/7 divided by 14/12
    9·2 answers
  • What is the distance between the points 4,10 and -3,-14 on the coordinate plane
    15·1 answer
  • What is the slope-intercept form of the function described by this table?
    13·1 answer
  • Expand &amp; simplify<br> 5(b+6) +5(b-5)
    13·2 answers
  • What is a GEM math program?
    8·1 answer
  • The factors of p2-2pq+q are​
    11·2 answers
  • PLEASE ANSWER!!!!! SIMPLE MATH PROBLEM PLEASE!!!
    14·1 answer
  • Fill in the boxes to complete each number chain.
    13·1 answer
  • Determine the area under the standard normal curve that lies to the left of (a) Z=081. (b) Z=0.43. (c) Z= -0.33. and (d) Z= 1.04
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!