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3 years ago

If the earth rotates 15° each hour how long does it take to rotate 1°? Show your work

Mathematics

1 answer:

mojhsa [17]3 years ago

3 0

It will take 4 minutes to rotate 1º because 15 divided by 15 is one (to get 1º) and 60 (1 hour) divided by 15 is 4.

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The scale on a scale drawing is 1 : 30. What should you do with each measurement on the drawing to get the actual dimensions? Pr

jekas [21]

Answer:

see below

Step-by-step explanation:

For the first question, you should multiply the scale dimension by 30 to get the actual dimension. This is because the scale is 1:30 where the scale dimension is the 1 and the actual dimension is 30, so therefore, the scale dimension is 1/30th of the actual dimension, so to get the actual dimension, we can multiply the scale dimension by 30. I'm not totally sure how to attach pictures from my phone on my computer (sorry) but an example of a drawing could be two rectangles, the first (this is the scale drawing) having dimensions of 1 by 2 units and the second (this is the actual drawing) having dimensions of 30 by 60 units. I hope this helps!

4 0

4 years ago

Mai’s mother was 28 when Mai was born. Mai is now 12 years old. <br> How old will they be then?

yuradex [85]

Answer:

Mai is 12 and Mai's mother would be 40.

5 0

3 years ago

Read 2 more answers

Sandra ran 7/12 of a mile lamar ran 3/4 a mile who ran farther explain pls help

LekaFEV [45]

Sandra ran 7/12 of a mile. Lamar ran 3/4 of a mile. Who ran further?
Lamar ran further.
3/4=(3*3)/(4*3) which equals 9/12.
Based off calculations we also see that 9/12>7/12.
Which then leaves us too 3/4>7/12.

3 0

3 years ago

Read 2 more answers

Dave is considering two loans. Loan U has a nominal interest rate of 9. 97%, and Loan V has a nominal interest rate of 10. 16%.

Vsevolod [243]

Loan U will have a lower effective interest rate, and 0.0713 lower percentage points lower than Loan V and it can be determined by using the rate of interest formula.

Given that,

Dave is considering two loans.

Loan U has a nominal interest rate of 9.97%, and Loan V has a nominal interest rate of 10.16%.

If Loan U is compounded daily and Loan V is compounded quarterly.

We have to determine,

Which loan will have the lower effective interest rate, and how much lower will it be?

According to the question,

<h2>Effective Interest Rate;</h2>

The effective interest rate is determined by the formula;

$= \left(1+\dfrac{r}{t} \right )^t$

Loan U has a nominal interest rate of 9.97%,

Loan U is compounded daily,

Then,

The effective annual multiplier for loan U is,

$= \left(1+\dfrac{0.997}{365}\right)^{365}\\\\= (1+0.0027)^{365}\\\\= (1.0027)^{365}\\\\= 1.104824$

And Loan V has a nominal interest rate of 10.16%,

and Loan V is compounded quarterly.

Then,

$= \left(1+\dfrac{0.1016}{4}\right)^{4}\\\\= (1+0.0254)^{365}\\\\= (1.0254)^{365}\\\\= 1.105537$

Therefore,

Loan V has a higher effective rate by,

$=1.105537 -1.104824 \\\\= 0.000713 \\\\= 0.0713%$

Hence, Loan U will have a lower effective interest rate, and 0.0713 lower percentage points lower than Loan V.

For more details about Interest rate refer to the link given below.

brainly.com/question/1398822

5 0

3 years ago

Pls help for this question! no wrong answers pls

ankoles [38]

Answer:

41.29 cm²

Step-by-step explanation:

From the question,

Area of the shaded portion = Area of the circle - area of the square.

A' = πr²-L²...… Equation 1

Where A' = Area of the shade portion, r = radius of the circle, L = length of the square, π = pie

Given: r = 4 cm, L = 3 cm

Constant: π = 22/7.

Substitute these values into equation 1

A' = [(22/7)×4²]-3²

A' = 50.29-9

A' = 41.29 cm²

Hence the area of the shaded portion is 41.29 cm²

8 0

3 years ago