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nydimaria [60]
3 years ago
14

Fiind the value of x between 0 and 360 for question 5sin 2x=7cos2x​

Mathematics
1 answer:
Degger [83]3 years ago
6 0

Answer:

x=pi*n/2+1/2arctan(7/5)

Step-by-step explanation:

5sin(2x)=7cos(2x)

5tan(2x)=7/5

2x=pi*n+arctan(7/5)

x=pi*n/2+1/2arctan(7/5) for n e Z

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What is the Square root of 39
valkas [14]

Answer:

The square root would be something that multiplies twice by itself to get 39.

Step-by-step explanation:

In this case it is a decimal

6.244997998

We can round to

6.24

8 0
4 years ago
Daniel has $25 to spend at the fair. If the admission to the fair is $4 and the rides cost $1.50 each , what is thw greatest num
kondor19780726 [428]
$25 is the total amount of money.
Admission is a constant, meaning that price will not vary and is fixed.
The rides each cost something so the price of rides will vary, unlike the constant (admission). 

Thus making x the number of rides, we have the equation:
25 = 4 + 1.5x.
We need to solve for x, but x must be a whole number so we will round down if the solution is not an integer.

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8 0
3 years ago
22 of the students in a Geometry class passed a Geometry test. If these students are 50%
SVEN [57.7K]
44 students because half of 44 is 22 and half of the class passed
5 0
3 years ago
A microwave cost 200 plus 20% VAT what is the total price ​
iris [78.8K]

Answer:

Total price = 240

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a microwave cost = 200

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total price ​= 200 plus 20% VAT = 200 + 40 = 240

7 0
3 years ago
Chaleah deposited $900 in a new account that earns 6% simple interest. After 2 years, how much interest will she have earned?
nikklg [1K]

Answer:

$108

Step-by-step explanation:

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Principle: $900

Rate: 0.06 (6%)

Time: 2 years

<u>Put it all in an equation:</u>

i = 900*0.06*2

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3 0
3 years ago
Read 2 more answers
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