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shutvik [7]
3 years ago
15

Solve for x 2cos^2x-3cosx+1=0

Mathematics
1 answer:
marishachu [46]3 years ago
8 0
<span> x= Pi, x = 2pi/3, x = 4pi/3
That is the answer</span>
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I need help, giving brainliest.
storchak [24]

Answer:

k

Step-by-step explanation:

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3 years ago
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The cost of raincoat is rs 400 and VAT is rs 40 find the rate of VAT​
DaniilM [7]

Divide vat by price

40/400 = 0.1

Multiply by 100

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3 years ago
If there are 400 ounces in 25 pounds, how many ounces are in 8 pounds
ladessa [460]
The answer is:  " 128 oz. " . 
_________________________________________________________
There are:  " 128 oz. " (in " 8 lbs." ) .
_________________________________________________________
Explanation:
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Set up a proportion;  as a fraction; as follows:
________________________________________________________

 400/ 25  = x / 8 ; 

in which:  "x" = the number of "ounces [oz.] there are in "8 lbs." ;
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We shall solve for "x" , the answer to the problem:

Cross-factor multiply:

25x = (400) * 8 ; 

→ 25x = 3200 ; 

Divide each side of the equation by "25" ; to isolate "x" on one side of the equation; & to solve for "x" ; 

→ 25x / 25 = 3200 / 25 ; 

→  x = 128 .
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Answer:  " 128 oz. " . 
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There are:  " 128 oz. " (in " 8 lbs." ) .
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Note of interest:  " 16 oz. =  1 lb. " (exact conversion). 

So;  "8 lbs.  <span>=  ?</span>  oz. " ; 

→  " 8 lbs. * (16 oz/ 1 lb)  =   ( 8 * 16) oz.  =  128 oz. ;  →  which is our answer!
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3 years ago
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Answer:

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Answer:

3 has to be 3

Step-by-step explanation:

n neg so 3

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2 years ago
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