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raketka [301]
2 years ago
7

Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A​

Mathematics
1 answer:
11Alexandr11 [23.1K]2 years ago
4 0
I wasn’t sure how to put this into words. I hope this makes sense. <3

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Please help me with this question. I don’t understand how to do this.
Blizzard [7]

Answer:

133/152

Step-by-step explanation:

The probability of 2 independent events is the product of the individual events.  Independent means the first event has no effect on the probability of the second event.  Since we are replacing the first marble, the first even has no effect on the probability of the second event.  

There are 48 total marbles

Let A = pulling a blue marble

Let B = pulling a red marble

So

P(A) = 14/48

P(B) = 19/48

and

P(A then B) = (14/48)(19/48) = 266/2,304 = 133/1,152

8 0
3 years ago
A shoe store is having a sale on sneakers. You want to buy a pair of sneakers
creativ13 [48]

Answer:

Hi there!

Your answer is:

$78

Step-by-step explanation:

To set up this equation:

75+ (.04× 75)

Change 4% into decimal format

75+ ( 3)

78

Hope this helps!

7 0
3 years ago
What is y=1/2x-3 on a graph
Anvisha [2.4K]
This needs a graph to solve
7 0
3 years ago
Read 2 more answers
What is the value of log16 4?<br> 4 <br> 1/2 <br> 1/4<br> 2
igor_vitrenko [27]
The answer will be 1/2
5 0
3 years ago
Write an equation of the circle with center (-3, 4) and radius 6.
Sedaia [141]

Answer:

(x+3)²+(y-4)²=36.

Step-by-step explanation:

For this, we need to use the equation of a circle which is:

(x-h)²+(y-k)²= r²

Simply substitute the center values for 'h,k', and the radius for 'r'.

This will give you:

(x+3)²+(y-4)²=36.

3 0
3 years ago
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