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Nady [450]
3 years ago
7

An object is thrown down with an initial velocity of 8 ft/sec. When will the object have fallen 120 feet?

Mathematics
1 answer:
Mice21 [21]3 years ago
6 0

Step-by-step explanation:

time =  \frac{(final \:  -  \: initial \: displacement)}{(final - initial \: velocity)}  \\ time =  \frac{0 - 120}{0 - 8}  \\ time = 15 \: seconds

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the observations 7,15,x-1,x+1,24,28 have been arranged in ascending order. if the median of the data is 21. find the value of X.
marissa [1.9K]

Answer:

x = 21

Step-by-step explanation:

The following data were obtained from the question:

Set of data => 7, 15, x–1, x+1, 24, 28

Median = 21

x =?

Median is simply defined as the middle term of a given data arranged either in ascending or descending order.

Next, we shall determine the median of the set of data. This can be obtained as follow:

7, 15, x–1, x+1, 24, 28

Median = [(x–1) + (x+1)]/ 2

Finally, we shall determine the value of x as follow:

Median = [(x-1) + (x+1)]/ 2

Median = 21

21 = [(x-1) + (x+1)]/ 2

21 = [x – 1 + x + 1] /2

21 = [x + x – 1 + 1] /2

21 = 2x / 2

21 = x

Thus, x is 21

****Check****

Median = 21

x = 21

Median = [(x–1) + (x+1)] / 2

21 = [(21 – 1) + (21 + 1)] / 2

21 = [20 + 22] / 2

21 = 42/2

21 = 21

7 0
3 years ago
Choose the formula for the volume of a rectangular box, V = lwh written in terms of w.
lilavasa [31]

The width of the rectangular box will be 8cm

Given that the formula for calculating the volume of a rectangular box is expressed as:

V=lwh

L is the length

w is the width

h is the height

Get the "value of "w

V = lwh\\w=\frac{V}{lh}

Given the following parameters

Length l = 3 cm

Volume V = 120cm³

Height = 5cm

Get the width of the box as shown:

w=\frac{V}{lh}\\w=\frac{120}{3\times 5}\\w=\frac{120}{15}\\w=  8cm

Hence the width of the rectangular box will be 8cm

Learn more here: brainly.com/question/20415942

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Answer:

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Step-by-step explanation:

Area of rectangle: l x w

6 x 4 = 24 m²

Area of semicircle: πr²/2

r = 4/2 = 2

π x 2² / 2

4π / 2

2π

Total area: 2π + 24 m² = 30.3 (3 s.f.)

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