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il63 [147K]
1 year ago
11

Prove that Cos4x=8Cosx -8Cosx​

Mathematics
1 answer:
harkovskaia [24]1 year ago
8 0
Please see the image attached

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Divide 72 ft in the ratio 9:4:5
Anton [14]
9:4:5.....added together = 18

9/18 (72) = 648/18 = 36
4/18 (72) = 288/18 = 16
5/18 (72) = 360/18 = 20

so we have 36:16:20
5 0
3 years ago
¿que tipo de par ordenado es Veracruz-jalapa? ​
ELEN [110]

Answer:

i dont speak spanish sry

Step-by-step explanation:

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6 0
3 years ago
At the beginning of the month, the value of a stock is $78.35. By the end of the month the value of the stock has changed by a l
liberstina [14]

Answer:

Step-by-step explanation:

Begining of the month, value of stock=$78.35

At the end, the loss = $12.80

Value of stock at the end of the month= the difference between both values

$78.35 - $12.80 = $65.55

8 0
3 years ago
What is the greatest common factor of 28x²y-7xy^5?
Alchen [17]
The greatest common factor of this can be solved by looking at the individual parts and splitting it up.

First, we have 28 and 7.  Well, thats an easy one.  7 goes into 28 4 times so we are now left with 4 and 1.

We can also write the rest of this like this 4(x*x*y) - 1(x*y*y*y*y*y)

Now, what values are in both equations.  We have one x and one y that can be taken out of both.

We end up with 7xy(4x-7y^4)
3 0
3 years ago
Read 2 more answers
What is 699,900 rounded to the nearest thousand
Rus_ich [418]
<span>When you round 699,900 to the nearest hundred, you get 700,00.</span>
6 0
3 years ago
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