All categories

3 years ago

What is sin 7pi/4? I'm currently taking a tirg course and need help

1 answer:

5 0

To ease the understanding, let's write it in degrees and not in Radian:

Formula of conversion: Degree°/180 = Radian/π

Convert 7π/4 in degrees: = (7x180)/4 = 315°

This angle is in the IV th Quadrant of the UNIT circle. So you can write 315° or - 45° .

sin(7π/4) = sin(315°) = sin( - 45°) = - sin(45°) = - (√2)/2

You might be interested in

A company loses $5,400 as the result of a manufacturing defect. The 8 owners of the company must share the loss equally.

denpristay [2]

Answer:

parts A answer D) -5.400divided by 8

and for part B is c) -675

Step-by-step explanation:

mark me as brainlest pliz

6 0

2 years ago

What operation does “the sum of 4 and 18” indicate?

skelet666 [1.2K]

Step-by-step explanation:

22 because if we add4+18=22

7 0

3 years ago

Read 2 more answers

Please help, see attachment for equation!

Alekssandra [29.7K]

Answer:

The answer to your question is the last option

Step-by-step explanation:

Quadratic equation

2 = - x + x² - 4

Order the equation from the highest power to the lowest power. Do not consider 2 because it is not consider in the options given.

x² - x - 4 = 0

Identify a, b and c

(1) x² -(1) x - 4 = 0

a = 1 b = -1 c = - 6

Substitution

$\frac{-(-1) +- \sqrt{(-1)^{2} - 4(1)((-4)}}{2(1)}$

3 0

3 years ago

Anyone know this ???...

Karolina [17]

Answer:

4250 children

Step-by-step explanation:

72-38=34 degrees

34 degrees therefore is 578 people

so, 1 degree is 17 people

There is 360 degrees in a circle so we must subtract the degrees of the men and female segments in order to know how many degrees children takes up:

360-72-38=250

250x17=4250 children

3 0

2 years ago

Simplify: 36÷{12-(3+6)*5}

NeTakaya

Answer - 3

B = 36/ (12-9*5)
B = 36/ (12- 45)
B = 36/ (-33)
E = N/A
D = 3
M = N/A
A = N/A
S = N/A

7 0

3 years ago

Read 2 more answers