The angle whose sine is 0.39581 is? how do I find the degree?

Answers

Answer 1

Answer: When you have a notable result, as 0, 1, 1/2, (√3)/2, you can deduce the angle from your own knnowledge. For example, the angles whose sin is 0 is 0° and 180°.

In cases of not notable sines, like the one of this problem, you need to use a table of trigonometric functions or a calculator with the function arctan (which is the inverse of the tangent, and sometimes written as tan^-1).

With a calculator I found arctan(0.39581) = 29.59°.

Now take in account that the function sine is periodic and this value is repeated when the angle is 180° - 29.59° = 158.41 °.

Answer: 29.59° and 158.41°.

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The results of a survey indicate that between 76% and 84% of the season ticket holders are satisfied with their seat locations.What is the survey’s margin of error?

Answers

The margin of error is a statistic that expresses how much random sampling error there is in a survey's results. The margin of error of the survey will be ±4%.

What is the margin of error?

The margin of error is a statistic that expresses how much random sampling error there is in a survey's results. The wider the margin of error, the less confident one should be that a poll result reflects the outcome of a population-wide survey.

The results of a survey indicate that between 76% and 84% of the season ticket holders are satisfied with their seat locations. Therefore, the margin of error can be written as,

Margin of Error = (84%-76%)/2 = 8%/2 = ±4%

Hence, the margin of error of the survey will be ±4%.

Learn more about Margin of Error:

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Answer:

±4

Step-by-step explanation:

The margin of error in a confidence interval is half the range:

(84 - 76) / 2 = 4

So the margin of error is ±4.

Two planes intersect in exactly one _____.
line
plane
point
prism

Answers

Two planes (not the same two) can intersect in a line, or
in a plane, or not at all. It depends on their orientation.

Two planes can never intersect in a single point.

Answer:

one plane

Step-by-step explanation:

Zane bought cupcakes for his sister's birthday party. 60% of the 90 cupcakes had sprinkles on top. How many cupcakes had sprinkles?

Answers

Answer:

Step-by-step explanation:

The product of a + 3 and –2a2 + 15a + 6 is –2a3 + xa2 + 51a + 18. What is the value of x?

Answers

Value of x is 9 As when we multiply a + 3 by -2a2 + 15a + 6 We get (a + 3) (-2a2 + 15a + 6) -2a3 + 15a2 + 6a - 6a2 + 45a + 18 -2a3 + 9a2 + 51a + 18 If we compare the coefficients of a2, we get x = 9

Answer:

Step-by-step explanation:

How do I solve for n?

Answers

$4n-2=p\ \ \ \ |add\ 2\ to\ both\ sides\n\n4n=p+2\ \ \ \ |divide\ both\ sides\ by\ 4\n\n\boxed{n=(p+2)/(4)}$

Solve the equation.

2.2= z - 1.1
z=?

Answers

Answer:

z = 3.3

Step-by-step explanation:

Given

2.2 = z - 1.1 ( add 1.1 to both sides )

3.3 = z