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Masja [62]
2 years ago
13

Verify identity :

s%20%7B%7D%5E%7B2%7D%20%282%20%5Calpha%20%29%20%20%3D%201" id="TexFormula1" title="2 \sin {}^{2} ( \alpha ) + \cos {}^{2} (2 \alpha ) = 1" alt="2 \sin {}^{2} ( \alpha ) + \cos {}^{2} (2 \alpha ) = 1" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
ruslelena [56]2 years ago
7 0

Answer:

what is this? math or physics?

Step-by-step explanation:

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PLEASE HELP ME!!!!<br><br><br> Please show work thank you!
Vaselesa [24]

Answer:

use khan academy

Step-by-step explanation:

khanacedemy.com

dont cheat dude

7 0
3 years ago
When your class visited the aquarium, the costs totaled the maximum
yanalaym [24]

Answer:

I think it's A

Step-by-step explanation:

Please correct me if I'm wrong

7 0
3 years ago
PLEASE HELP!!! A blueprint for a fence has a scale of 1:40. The fence in the blueprint is 6in. What is the length of the actual
EastWind [94]
1 : 40 = 6 : 240

On the ground the fence would be 240 inches long

240 / 12 = 20 feet long fnce
4 0
3 years ago
Rick Mendez bought stock for $5,000, using $2,500 of his own money and $2,500 borrowed from the broker. One month later, the sto
-BARSIC- [3]

Answer:

It is 6%

Explanation:

The stock that is bought by Rick Mendez: 5,000

Own money used to buy: 2,500

Borrowed money: 2,500

Interest on borrowed money : 30

Brokerage commissions: 300

The stock is sold after one month: 5,650

Now first calculate the net profit = Selling price of stock – cost price of stock – Interest on borrowing – commission

5,650-5,000-30-300=320

Now calculate the rate of return = Net profit / cost of stock

320/5,000=.06

.06 or 6%

6 0
3 years ago
Find the volume of the sphere. Round your answer to the nearest tenth.
ollegr [7]

Answer:

Step-by-step explanation:

Givens

pi = 3.14

d = 3.8

r = d/2

r = 3.8/2 = 1.9

Formula

V = (4/3) * pi * r^3

Solution

V = (4/3) * 3.14 * 1.9^3

V = 4/3 * 3.14 * 6.859

V = 28.7163

6 0
2 years ago
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