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grandymaker [24]

3 years ago

8

How do you do trigonometry

1 answer:

IgorLugansk [536]3 years ago

8 0

1. Choose which trig ratio to use.
- Choose either sin, cos, or tan by determining which side you know and which side you are looking for.

2. Substitute
- Substitute your information into the trig ratio.

3. Solve
- Solve the resulting equation to find the length of the side.

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Beth needs 1 2/3 cups of sugar to make a cake and 2 1/4 cups to make a pie. How much sugar does she need to make both?

Brut [27]

Beth needs 3 11/12 cups

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3 years ago

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A triangle has side lengths measuring 2x + 2 ft, x + 3 ft, and n ft. Which expression represents the possible values of n, in fe

cluponka [151]

Answer:

$x-1$

Step-by-step explanation:

If a, b and c are the lengths of the triangle's sides, then

$a+b>c,\\ \\a+c>b,\\ \\b+c>a.$

Since

$a=2x+2,\\ \\b=x+3,\\ \\z=n,$

then

$2x+2+x+3>n\Rightarrow nx+3\Rightarrow n>1-x,\\ \\x+3+n>2x+2\Rightarrow n>x-1.$

Thus,

$x-1$

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3 years ago

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HELP ME PLEASEE

babymother [125]

From the given discrete distribution, we have that:

$\mu = 2.13, \sigma^2 = 0.61, \sigma = 0.78$

<h3>What are the mean, the variance and the standard deviation of a discrete distribution?</h3>

The mean of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.

The variance is given by the sum of the difference squared between each observation and the mean, divided by the number of values.

The standard deviation is the square root of the variance.

In this problem, the distribution is:

$P(X = 1) = \frac{2}{8}$

$P(X = 2) = \frac{3}{8}$

$P(X = 3) = \frac{3}{8}$

Hence, the mean is:

$\mu = 1\frac{2}{8} + 2\frac{3}{8} + 3\frac{3}{8} = \frac{17}{8} = 2.13$

The variance is:

$\sigma^2 = (1-2.13)^2\frac{2}{8} + (2-2.13)^2\frac{3}{8} + (3-2.13)^2\frac{3}{8} = 0.61$

The standard deviation is:

$\sigma = \sqrt{0.61} = 0.78$

More can be learned about discrete distributions at brainly.com/question/24855677

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2 years ago

What plus -4.52 equals a negative nummber? is it -5.4 or 3.86

algol [13]

Both of there numbers will result in a answer that is negative

3 0

4 years ago

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Drag each length to the correct location on the triangle. Each length can be used more than once, but not all lengths will be us

scoray [572]

The measure of the missing side of the right triangle are as follows;

adjacent side = 5√2

hypotenuse = 10

<h3 /><h3>How to find the side of a right triangle?</h3>

A right angle triangle has one of its angles as 90 degrees.

Therefore,

using trigonometric ratios,

tan 45 = opposite / adjacent

tan 45 = 5√2 / a

adjacent side = 5√2 / 1

Therefore,

adjacent side = 5√2

sin 45 = opposite / hypotenuse

hypotenuse = 5√2 / √2 / 2

hypotenuse = 5√2 × 2 / √2

hypotenuse = 10

learn more on right triangle here: brainly.com/question/6322314

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5 0

2 years ago