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sesenic [268]
3 years ago
6

Which trigonometric functions are equivalent to sin (theta)? Select all that apply.(2 correct answers)

Mathematics
1 answer:
Marina CMI [18]3 years ago
7 0

Answer:

sin(θ) = sin(θ + 2π) = -sin(-θ)

b and d

This can be shown by substituting a value for θ

sin(π ÷ 3) = 1/2

sin(π ÷ 3 + 2π) = 1/2

-sin(π ÷ 3) = -1/2

-sin(-π ÷ 3) = 1/2

sin(π ÷ 3 + π ÷ 2) = √3/2

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Henry was buying meals for his family. He bought 3 meals that included a chicken, corn, and a drink and spent a total of $20.25.
riadik2000 [5.3K]

Answer:

The price of each meal cost before tax is $ 6.367

Step-by-step explanation:

Given as :

The total price of three meals = $ 20.25

The sales tax included in the total price = 6 %

So, Let the cost of meal before sales tax = x

Or, x + 6 % of x = $ 20.25

or, x + 0.06 x = $ 20.25

Or, 1.06 x = $ 20.25

∴  x = \frac{20.25}{1.06}

I.e x = $ 19.10

Or, price of three meals before tax = $ 19.10

so, The price of each meal = \frac{19.10}{3} = $ 6.367

Hence The price of each meal cost before tax is $ 6.367   answer

5 0
3 years ago
This is found by multiplying pi by the radius squared
Minchanka [31]
Area of a circle is found by multiplying Pi times the radius squared. The radius of a circle is a segment that has its end points on the circle, and on the center of the circle, or you can think of it like, it goes halfway across the circle
7 0
3 years ago
A large drain and a small drain are opened to drain a pool. The large drain can empty the pool in 2 h. After both drains have be
Over [174]

Answer:

22

Step-by-step explanation:

Let X be the time for only a small drain, the work completed would be unity.

 The small drain has been open for a total of 11 hours, one hour next to the large one, and 10 hours alone.

We have that large drainage can accomplish this in 2 hours.

We have the following system:

1/2 + 11 / x = 1

solving, we have:

11 / x = 1 - 1/2

11 / x = 1/2

x = 11 * 2

x = 22

I mean it would take a total of 22 hours for the small drain alone

5 0
3 years ago
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X-intercept: -1
Y-intercept: -3
8 0
2 years ago
What is the factored form of this expression?
lawyer [7]

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3 years ago
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