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3 years ago

Giving brainly for correct answers

Mathematics

2 answers:

vovangra [49]3 years ago

8 0

Answer:

1/2

Step-by-step explanation:

c is the correct answer

alukav5142 [94]3 years ago

6 0

Answer:

Step-by-step explanation:

Integers are only positive and negative numbers:)

also 0

fractions are not integers

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Find the rate of change between the following points:

marshall27 [118]

This the 2 one i hope it's right

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2 years ago

the line plot below shows how many points fewer trevor scored in 20 games. In how many games did trevor score 18 points fewer?

Amanda [17]

It should be 00.0076

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3 years ago

Exercise 1.1. We roll a fair die twice. Describe a sample space ⌦ and a probability measure P to model this experiment. Let A be

3241004551 [841]

Answer:

$P=\frac{1}{36}$

$P(A)=\frac{5}{12}$

Step-by-step explanation:

The sample space of rolling a dice twice is:

S = {(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6)

(2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6)

(3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6)

(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6)

(5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6)

(6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)}

Sample size, <em>n</em> = 36.

Each sample has an equal chance of being selected.

So the probability of selecting any of the 36 sample is, $P=\frac{1}{36}$ .

Now an event <em>A</em> is defined as the second roll being larger than the first.

The sample space for <em>A</em> is:

<em>A</em> = {(2, 1), (3, 1), (3, 2), (4, 1), (4, 2), (4, 3), (5, 1), (5, 2), (5, 3), (5, 4), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5)}

The sample size is, <em>n</em> = 15.

The probability of the event <em>A</em> is:

$P(A)=\frac{15}{36}=\frac{5}{12}$

5 0

3 years ago

A sample of nitrogen in a glass bulb has a mass of 245 mg. What is this mass in kilograms? (Note: 1,000 mg = 1 g, 1,000 g = 1 kg

notka56 [123]

You can use the specified conversion scale to convert the weight given to kilograms.

The mass of given bulb in kilogram is 0.000245 kilogram.

<h3>How to convert from one unit to another unit?</h3>

If a quantity is given in one unit and its unit of measurement has to be changed to other unit, then you will have to get to know how is first unit related to other. Based on that, you can convert the unit of measurement to desired unit of measurement.

<h3>How to convert 245 mg to kilogram?</h3>

Since 1000 mg = 1 gram, thus,

Dividing by 1000 on both sides, we get:

$\dfrac{1000}{1000} \: \rm mg = \dfrac{1}{1000} \: \rm g\\
\\
1 \: mg = 0.001 \: g\\
\\
\text{Multiplying 245 on both sides}\\\\
245 \times 1 \: mg = 245 \times 0.001 \: g = 0.245 \: g\\
245 \: mg = 0.245 \: g$

Now since 1000g = 1 kg, thus,

Dividing by 1000 on both the sides,

$\dfrac{1000}{1000} \: \rm g = \dfrac{1}{1000} \: \rm kg\\\\1 \: g = 0.001 \: kg\\\\\text{Multiplying 0.245 on both sides}\\\\0.245 \times 1 \: g = 0.245 \times 0.001 \: kg = 0.000245 \: kg\\0.245 \: g = 0.000245 \: kg$ $\dfrac{1000}{1000} \: \rm g = \dfrac{1}{1000} \: \rm kg\\\\1 \: g = 0.001 \: kg\\\\\text{Multiplying 0.245 on both sides}\\\\0.245 \times 1 \: g = 0.245 \times 0.001 \: kg = 0.000245 \: kg\\0.245 \: g = 0.000245 \: kg$

Thus, 245 mg = 0.245g = 0.000245 kg

The mass of given bulb in kilogram is 0.000245 kilogram.

Learn more about unit conversion here:

brainly.com/question/16418622

8 0

2 years ago

Please help! What is x, 8 points!

Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

Replace tan^2(x) with sin^2 (x ) / cos^2(x)

2 sec(x) sin^3(x) = cos(x) * sin^2(x) / cos^2(x) Cancel cos(x) with cos^2(x)

2 sec(x) sin^3(x) = sin^2(x) / cos(x) Multiply by cos(x) both sides

2 sec(x)*cos(x)*sin^3(x) = sin^2(x) Divide sin^2(x) both sides

Note sec(x) and cos(x) will cancel when multiplied. giving you one

2 sin^3(x) / sin^2(x) = sin^2(x) / sin^2(x) Do the division

2 sin(x) = 1 Divide by 2

sin(x) = 1/2

x = sin-1(1/2)

x = 30 degrees or 150 degrees.

So the answers are pi/6 and 5/6 pi

5 0

3 years ago