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pshichka [43]
3 years ago
14

How do I solve 2cos(x)=2sin(2x)

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
4 0
2cosx=2sin2x. Sin2x is an identity for 2sinxcos. So 2[2sinxcosx] gives you 4sinxcosx. 2cosx=4sinxcosx. Divide 2cosx on both sides and gives you 2sinx=0 and divide again, sinx=0. Sinx is 0 at 0 and 360 degrees, or pi and 2pi. So thats what x would be. 0,360,pi,2pi.
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You rented a car on vacation to go sightseeing for a day. You had to pay $50 for the day and $.15 per mile, along with $35 for g
stellarik [79]

The number of miles for which the car has been driven if one paid $122.50 as in the task content is; 2.5 miles.

<h3>For how many miles was the car driven?</h3>

It follows from the task content that the total amount paid was; $122.50.

Hence, after subtraction the constant charges, for the day and for gas, the remainder is;

$122.50 - $50 - $35

= $37.50.

Ultimately, if the charge per mile is $15, then the number of miles driven is; $37.50/$15

= 2.5 miles.

Read more on cost per unit;

brainly.com/question/19493296

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2 years ago
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andreev551 [17]
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6 0
3 years ago
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Step-by-step explanation:

4 0
3 years ago
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Which of the box plots A,B Or C show a sample that has
Paul [167]
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Now we need to have a look at our lower quartile and see that it does start at 6 and the upper quartile does end at 16 these are the lines that make the rectangle shape in the centre lucky for us in C they do. Then we need to see if the lines that run horizontally through the box ( may also be called the whiskers) start at the minimum 3 and end at the maximum of 22 which they do so in the end gives C is true only diagram with all of these in.
Hope this helps !
8 0
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stellarik [79]

Answer:

$2.25

Step-by-step explanation:

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8 0
3 years ago
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