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Yanka [14]
3 years ago
6

Sin4u=2sin 2u cos 2u​

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
4 0

Answer:

If you've learnt sin(A+B) = sinAcosB + cosAsinB,

sin(4u)

= sin(2u+2u)

= sin(2u)cos(2u) + cos(2u)sin(2u)

= 2 sin(2u) cos(2u).

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Canada has a population that is about 1/10 as large as United States. If Canada population is about 32 million, about how many p
Sladkaya [172]
Do 32,000,000 divided by 10 to get your answer.
3 0
3 years ago
Jill''s family divided a while lasagna into 10 pieces of equal size. they ate 2/5 of the lasagna. Which fraction represents the
barxatty [35]
There are 6/10 left over. 6/10 reduces to 3/5.
7 0
3 years ago
A class of 40 students took a test 20 students had an average score of 65. the other students had an average score of 52. what i
Korolek [52]

Answer:

One: 58.5

Two 36.6

Step-by-step explanation:

One

20 students * 65 = 1300 This is the total score of all 20 students. They may not all get 65, but 1300 is what their average total is.

20 students * 52 = 1040

The total score of all 40 students was 1300 + 1040 = 2340

The average for the entire class was 2340 / 40 = 58.5

Two

This question is done almost the same way.

Supposes the total number of members is 100. That means that 28 of them are men

28 * 33 = 924     This is the total age for the men

100 - 28 = 72        Out of 100, 72 of the people there are women.

72 * 38 = 2736

The total number of years of all of the members is

924 + 2736 = 3660      

The average age of all members is 3660/100 = 36.6

Why did I pick 100 as the total membership? It is because a percentage is number out of 100. Am I allowed to invent things like that? Sure. I'm just using the definition of a percentage.

The average will make it come out the same.

7 0
3 years ago
What is the way to solve this cuz I don’t know how to do divide
WINSTONCH [101]

Answer:

ur answer is 9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
1. If you were to describe a translation of triangle ABC,
galben [10]

Answer:

The rule of the translation

Step-by-step explanation:

we know that

In order to describe the translation of the triangle ABC we need to know the rule of translation, i.e. we need to know how many units to the left or to the right the x coordinate will move and how many units up or down the y coordinate will move

3 0
3 years ago
Read 2 more answers
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