Help with some at least please❤️❤️❤️

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Answer 1

Answer: It’s on google or on ANSWERS.com

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Find the exact value of cos(135) and sin(135).

Answers

To find the exact value of cos(135), you need the following formula: cos(a+b) = cos a • cos b - sin a • sin b So in this case, it would be: cos (135) = cos ( 45 + 90) = cos 45 • cos 90 - sin 45 • sin 90 = √(2)/2 · 0 - √(2)/2 · 1 = 0 - (√2)/2 = - (√2)/2.

To find the exact value of sin(135), you need the following formula: sin (a+b) = sin a • cos b - cos a + sin b So in this case, it would be sin (135) = sin (90 + 45) = sin 90 • cos 45 + cos 90 • sin 45 = (1 ·(√2)/2) + (0 · (√2)/2) = (√2)/2).

cos (135)= - (√2)/2

sin (135) = (√2)/2

Final answer:

To find the exact value of cos(135) and sin(135), use the unit circle and refer to the special angles. Cos(135) is equal to -1/sqrt(2) or approximately -0.7071, while sin(135) is equal to 1/sqrt(2) or approximately 0.7071.

Explanation:

The cosine function and sine function are both trigonometric functions that are commonly used in mathematics. The cosine function gives us the ratio of the adjacent side to the hypotenuse in a right triangle, while the sine function gives us the ratio of the opposite side to the hypotenuse. To find the exact value of cos(135) and sin(135), we need to use the unit circle and refer to the special angles.

For cos(135), we can determine that 135 degrees lies in the second quadrant of the unit circle. The reference angle for 135 degrees is 45 degrees. Since 45 degrees is a special angle, we know that cos(45) = 1/sqrt(2) or approximately 0.7071. Since cos is negative in the second quadrant, cos(135) = -1/sqrt(2) or approximately -0.7071.

For sin(135), the same process applies. The reference angle for 135 degrees is 45 degrees, and sin(45) = 1/sqrt(2) or approximately 0.7071. Since sin is positive in the second quadrant, sin(135) = 1/sqrt(2) or approximately 0.7071.

Learn more about Trigonometric functions here:

brainly.com/question/31540769

How many solutions are there to the equation below?

12x+6=5x

Answers

Answer: There is one solution to the given equation.

Step-by-step explanation: We are given to find the number of solutions to the following equation :

$12x+6=5x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

Since the given equation is linear in one variable x, so it will have only one solution.

The solution of equation (i) is given by

$12x+6=5x\n\n\Rightarrow 12x-5x=-6\n\n\Rightarrow 7x=-6\n\n\Rightarrow x=-(6)/(7).$

Thus, there is one solution to the given equation.

Evaluate and simplify if possible:

Answers

$(2x(3y - 4z))/(3(5x + 4z))$ Plug in the given values
$(2(4)(3(-1) - 4(-3))/(3(5(4) + 4(-3))$ Multiply where needed
$(8(-3 + 12)/(3(20 - 12))$ Add and subtract inside the parentheses
$(8(9))/(3(8))$ Multiply
$(72)/(24)$
3

Which function is graphed below? On a coordinate plane, an exponential decay function is shown. The curve starts in quadrant 2 and decreases into quadrant 1. It crosses the y-axis at (0, 3) and approaches y = 0 in quadrant 1.

Answers

The function graphed here is an exponential decay function.

Becasue an exponential decay function is characterized by a curve that starts in quadrant 2 and decreases as it moves into quadrant 1. It crosses the y-axis at a positive value and approaches y = 0 as it continues into quadrant 1. This behavior matches the description given in the question, so we can conclude that the function graphed is an exponential decay function.

A study was produced which involved 800 randomly selected individuals. Each participant was asked to identify whether they were currently employed or not. 583 responded they were employed while 148 responded that they were not employed. Identify the problem with this study.loaded questions

nonresponse

correlation and causality

self interest

Answers

Given:
800 randomly selected individuals
583 responded they were employed
148 responded they were not employed

583 + 148 = 731
800 - 731 = 69 missing response.

I think that the problem with this study is correlation and causality.

The correlation between two variables does not mean that it is the cause of the other variable. There are still a lot of factors to consider.

When one says he or she is not employed, it may mean that said individual is either a student or business owner.

Answer:

non-response

Step-by-step explanation:

not 100% sure

What is the image point of (3, -3) after a translation left 3 units and up 4 units?.