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charle [14.2K]
3 years ago
7

What is the velocity of an object that falls 2 m in 0.5 seconds?

Mathematics
1 answer:
kogti [31]3 years ago
8 0

The correct answer is 4m/s.

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Find the solution of the system of equations. -10x+8y= -44 4x+8y=40
expeople1 [14]

Answer:

(6, 2)

Step-by-step explanation:

i hope this helps :)

8 0
3 years ago
Find the value of n<br> (2n + 4)º
MatroZZZ [7]

Answer:

I don't recognize this problem, please make sure the input is complete.

Step-by-step explanation:

it that the full problem?

5 0
3 years ago
The following chart shows a store’s coat sales for two years.
STALIN [3.7K]

Answer:

Sales of trench coats increased 8.3 percentage points faster than total coat sales.

Step-by-step explanation:

<u>2006:</u>

top coats is 297,

parkas is 210,

jackets is 213,

raincoats is 137,

trench coats is 103

Total: 297+210+213+137+103=960

<u>2007:</u>

topcoats is 223,

parkas is 210,

jackets is 285,

raincoats is 259,

trench coats is 127

Total: 223+210+285+259+127=1,104

<u>Percent increase in total sales:</u>

\dfrac{1,104-960}{960}\cdot 100\%=15\%

<u>Percent increase in sales of trench coats:</u>

\dfrac{127-103}{103}\cdot 100\%\approx 23.3\%

Since 23.3\%-15\%=8.3\%, sales of trench coats increased 8.3 percentage points faster than total coat sales.

7 0
3 years ago
Read 2 more answers
Computing a two-independent sample t-test is appropriate when?
Luden [163]

Answer:

D) all of the above

Step-by-step explanation:

The two-independent sample t-test is used to evaluate the differences in the means of two independent groups to ascertain if there is indeed a difference in the population means. So, the population variance is unknown before this test is done. To carry out this type of test, the researcher should ensure that there are no similarities between participants in the two groups so that there would be no influences between the groups. The participants in the research should be randomly selected.

The participants are observed one time to ensure that the same conditions hold for both groups and that there is a balance in the research blueprint.

7 0
3 years ago
a construction company poured a cylindrical shaped concrete column 15 feet long with a radius of 3 feet. How much concrete did i
Vinil7 [7]

<u>Answer:</u>

The volume of cylinder in terms of π is 135\pi cubic feet

<u>Explanation:</u>

Given the radius of the cylindrical shaped concrete column is 3 feet

Height of the column is 15 feet

The volume of a cylinder is calculated by the formula;

V = \pi r^2h, where

r is the radius and h is the height

Substituting the values,

V = \pi \times (3)2\times (15)

V = \pi \times 9\times 15

V = \pi \times 135\\V = 135\pi

Hence, the volume of cylinder in terms of π is 135\pi cubic feet

7 0
3 years ago
Read 2 more answers
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