2*19*50= 1,900 I hope that helps:)
Answer:
52.48
Step-by-step explanation:
find the cross sectional area which is the triangle
triangle = 1/2 x 8.2 x 6.4 = 26.24
then, use the area to multiply by the extended length of 2
26.24 x 2 = 52.48
Answer:
Hypothesis
Step-by-step explanation:
Hypothesis:
- It is an assumption or explanation that need to be tested.
- It determines the claim in the testing.
- There are two types of hypothesis: Null hypothesis and alternate hypothesis.
- Null hypothesis says that the sample is taken from the population.
- Alternate hypothesis states that the sample does not belong to the defined population.
A hypothesis is a testable claim or statement, that is yet to be tested, concerning the relationship among variables that can be observed.
Answer:
The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.
Step-by-step explanation:
Statement is incorrect. Correct form is presented below:
<em>The height </em>
<em> of an ball that is thrown straight upward from an initial position 3 feet off the ground with initial velocity of 90 feet per second is given by equation </em>
<em>, where </em>
<em> is time in seconds. After how many seconds will the ball be 84 feet above the ground. </em>
We equalize the kinematic formula to 84 feet and solve the resulting second-order polynomial by Quadratic Formula to determine the instants associated with such height:

(1)
By Quadratic Formula:

,
The ball will be 84 feet above the ground 1.125 seconds and 4.5 seconds after launch.