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3 years ago

Please help this is due soon!!

Mathematics

1 answer:

vladimir2022 [97]3 years ago

6 0

Answer:

The cosine of A is equal to $\frac{3\sqrt{58}}{58}\\$

Step-by-step explanation:

Cosine is is calculated as adjacent over hypotenuse. The line adjacent to A is 3 in length.

So we can say that the cosine is equal to 3/√58, but need to multiply it by √58 / √58 to ensure we have a non-radical denominator

$A = \frac{3}{\sqrt{58}}\\A = \frac{3\sqrt{58}}{58}\\$

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4 years ago

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A students wants to report on the number of movies her friends watch each week. The collected date are below:

Anvisha [2.4K]

Answer:

A.) median; 1.5

Step-by-step explanation:

Hello!

The median is the number that is in the middle when the numbers are listed from least to greatest

0, 0, 1, 1, 2, 2, 2, 14

We can take one from both sides till there are one or two numbers left

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If there are two numbers left we add them then divide by 2 to get the median

1 + 2 = 3

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The answer is A.) median; 1.5

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3 years ago

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klio [65]

Step-by-step explanation:

The surface area of a square pyramid is the area of the square base plus the area of the 4 lateral faces:

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and l is the slant height.

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4 years ago

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The area of a rectangular field is 48m2 and one of its sides is 6m . How long will a lady take to cross the field diagonally at

tatiyna

Answer:

It will take her approximately 28 seconds to cross the diagonal of the pitch

Step-by-step explanation:

If we can find the length of the diameter of the field (in Metres), we can easily find the time it takes her to cross this length using motion equations.

Step one: Find the length of the field from its area.

The field is rectangular in shape. The area of the field is 48m^2. To get the area of the field, we had to multiply its length and its breadth.

i.e area = length X breadth.

Let us assume that the breadth = 6m

its length will be area / breadth = 42/ 6 = 7m

The length of the pitch = 7 m

Step Two: Find the length of the diagonal using Pythagoras' theorem.

From Pythagoras'theorem, the length of the diagonal can be obtained by

$diagonal = \sqrt{l^2 +b^2}$

$diagonal = \sqrt{6^2+ 7^2} = 9.22m$

The length of the diagonal is 9.22m

Step three: Find the time using her speed and the distance she needs to cover.

Time = distance / speed

time = 9.22 /20 = 0.46 minutes

It will take her approximately 28 seconds to cross the diagonal of the pitch

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3 years ago

The data set below shows the number of books checked out from a library during the first two weeks of the month: 99, 29, 30, 42,

Iteru [2.4K]

Answer:

D. There is one outlier, indicating an abnormally large number of books were rented out on that day.

Step-by-step explanation:

We have been given a data set that shows the number of books checked out from a library during the first two weeks of the month.

Our given data set is: 99, 29, 30, 42, 35, 36, 30, 35, 38, 43, 39, 40, 28, 31.

Let us arrange our given data points in ascending order.

28, 29, 30, 30, 31, 35, 35, 36, 38, 39, 40, 42, 43, 99.

We can see from our data set that it has one extreme large value outlier that is 99, which indicates that an abnormally large number of books were rented out on that day.

Therefore, option D is the correct choice.

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4 years ago