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
Georgia [21]
2 years ago
5

The height H metres of a ball projected upwards t seconds after being projected is given by H=64t - 16t². Find it's initial velo

city​
Mathematics
1 answer:
nordsb [41]2 years ago
4 0

Answer:

initial velocity = 64 m/s

Step-by-step explanation:

Differentiate H = 64t - 16t² to find an equation for velocity:

Velocity = \frac{dH}{dt} = 64 - 32t

Initial velocity (u) is when t = 0:

   u = 64 - 32(0)

⇒ u = 64 - 0

⇒ u = 64 m/s

You might be interested in
A cell phone cost $210 a battery charger costs $15 and batteries cost $5 .what is the sales tax and total price for purchasing t
Savatey [412]

The total price with sales tax is $ 246.1

<h3><u>Solution:</u></h3>

Cost of cellphone = $ 210

Cost of battery charger = $ 15

Cost of batteries = $ 5

So total cost can be calculated by adding cost of cellphone and Cost of battery charger and Cost of batteries

Total cost = 210 + 15 + 5 = $ 230

Given that sales tax is 7%

sales tax = 7% of total cost

sales tax = 7 % of 230

\text {sales tax }=\frac{7}{100} \times 230=16.1

Total cost including sales tax = 230 + 16.1 = $ 246.1

Thus the total price with sales tax is $ 246.1

3 0
3 years ago
With some functions, the value of the
Romashka-Z-Leto [24]

Answer and explanation:

This is an example of negative correlation/inverse relationship between two variables. A negative correlation between two variables, independent and dependent variable, occurs when increase in one variable is associated with decrease in the other. In other words, the two variables tend to go in opposite direction.

The independent variable is the variable that causes a change in the dependent variable. For example, an increase in the independent variable in an inverse relationship will bring about a decrease in the dependent variable.

A good real world example is the increase in inflation and the decrease in purchasing power of money.

An equation for this could be

Y=-0.2(x)

Where y is dependent variable purchasing power and x is independent variable inflation

3 0
3 years ago
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
cricket20 [7]

Answer:

The answer is H

Step-by-step explanation:

Next time pls ask real question

8 0
3 years ago
Their sum is -11 and the difference is 41
jeka94

Answer:

x+41=-11 I guess

Step-by-step explanation:

8 0
3 years ago
-1/3+4+2/3 what is the answer plz and thank you
koban [17]
Hi there!

-  \frac{1}{3}  + 4 +  \frac{2}{3}  =
First we rearrange the sum in order to add both of the fractions first. We can rearrange because the only thing we need to do is adding.

-  \frac{1}{3}  +  \frac{2}{3}  + 4 =
Add the fractions.
** If you don't get this, think of this story: you lack 1/3 of an apple pie and someone gives you 2/3 of pie. How much pie do you have left?
- 1 / 3 + 2 / 3 = 1 / 3 **

\frac{1}{3}  + 4 =
Finally add 4 to our found fraction.

\boxed{ 4\frac{1}{3} }
Therefore, the answer is 4 1/3.

5 0
3 years ago
Other questions:
  • What number does the x stand for? 14-x=10?<br> A. 4<br> B. 2<br> C.6<br> D.11
    10·2 answers
  • Complete the table and then determine which of the following is the graph of f (x) =ƒ(x) = 3√x + 2 + 4..
    8·2 answers
  • what is the slope of the line that passes through the points (-7, -4) and (-11, -2) write your answer in simplest form
    15·1 answer
  • Match the type of sequence to the appropriate example. 1. 2, 9, 16, 23, ... exponential decay 2. 3, 15, 75, 375, ... arithmetic
    12·2 answers
  • Draw a number line and mark all described points. a −1≤x≤3
    10·1 answer
  • 4. In the Old West, settlers made tents out of a piece of cloth thrown over a clothesline and then secured to the ground with st
    8·2 answers
  • Henry wants to buy a coat that has an original price of $125. During an upcoming sale, the price of the coat will be reduced by
    11·1 answer
  • Roxanna has a collection of silver spoons from all over the world.
    13·1 answer
  • What is the volume, in cubic inches, of a basketball with a diameter of 9 inches
    13·2 answers
  • What is the solution to this inequality?<br> X-6&lt;-4
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!