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erma4kov [3.2K]
2 years ago
14

PLEASE HELP ITS URGENT!!! MATH IS THE WORST!!

Mathematics
1 answer:
Musya8 [376]2 years ago
7 0

Answer:

here you go sweet heart

Step-by-step explanation:

♡♡♡♡♡♡♡♡♡♡

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A ball is kicked upward with an initial velocity of 32 feet per second. The ball's height, h (in feet), from the ground is model
stellarik [79]

Answer:

1.        t = 0.995 s

2.       h = 15.92  ft

Step-by-step explanation:

First we have to look at the following formula

Vf = Vo + gt

then we work it to clear what we want

Vo + gt = Vf

gt = Vf - Vo

t = (Vf-Vo)/g

Now we have to complete the formula with the real data

Vo = 32 ft/s      as the statement says

Vf = 0     because when it reaches its maximum point it will stop before starting to lower

g = -32,16 ft/s²        it is a known constant, that we use it with the negative sign because it is in the opposite direction to ours

t = (0 ft/s - 32 ft/s) / -32,16 ft/s²

we solve and ...

t = 0.995 s

Now we will implement this result in the following formula to get the height at that time

h = (Vo - Vf) *t /2

h = (32 ft/s - 0 ft/s) * 0.995 s / 2

h = 32 ft/s * 0.995 s/2

h = 31.84 ft / 2

h = 15.92  ft

4 0
3 years ago
The manager of a factory wants to compare the mean number of units assembled per employee in a week for two new assembly techniq
antoniya [11.8K]

Answer:

The most appropriate inferential statistic test in the present situation is the;

b. Two-sample t-test

Step-by-step explanation:

From the question, we have;

The number of subjects in each sample, n₁ = 100

The number of samples = 2

The nature of the test = To compare the two means

The value of the population standard deviation, σ = Unknown

From the given parameters, we have;

The t-test is a method of inferential statistics for determining whether the difference between the mean of two groups is significant, that is if the observed difference are due to chance, where the groups are likely to have some characteristics that are related

The t-test is utilized when testing an hypothesis, and it is used for small samples, where the population standard deviation is unknown

The types of t-test used are;

a) One-sample t-test

b) Two-sample t-test

c) Paired Sample t-test

Therefore, a two-sample t-test is most appropriate.

3 0
3 years ago
A new roll of wrapping paper has 658 yards of paper. drew used 216 yards from the roll to wrap a gift. which equation most close
igor_vitrenko [27]
658-216=442
There should be 442 yards of wrapping paper left on the roll.
3 0
3 years ago
A.A fish is 12 meters below the surface of the ocean. What is its elevation?
dalvyx [7]
A. -12
b. +28
c. 40meters
5 0
3 years ago
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Write the inequality that represents the possible values for x
UNO [17]

Answe8 times 8 equal 69 and bla ba

Step-by-step explanation:

3 0
3 years ago
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