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3 years ago

What is the value of x

Mathematics

1 answer:

Goshia [24]3 years ago

3 0

Sum of all adjacent angles is 180°.

3x + 12 + x = 180
4x + 12 = 180
4x = 168
x = 42°

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Answer: x = 42°
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A bag contains 7 pieces of paper numbered 1 to 7. P(2)=. Is

pochemuha

Answer:

$P (2) =\frac{1}{7}$ Theoretical probability

Step-by-step explanation:

The theoretical probability is defined as:

$P = \frac{number\ of\ desired\ results}{number\ of\ possible\ results}$

In this case we look for the probability of taking a 2 out of the bag. As there is only one paper with the number 2 in the bag then:

number of desired results = 1

The amount of paper in the bag is equal to 7, so:

number of possible results = 7

Thus:

$P (2) =\frac{1}{7}$

This is a theoretical probability, since we do not need to perform the experiment to calculate the probability.

To calculate the experimental probability we must perform the following experiment:

Take a paper out of the bag, record the number obtained and then return the paper to the bag.

Now repeat this experiment n times. (Perform n trials)

So:

$P (2) = \frac{number\ of\ times\ you\ obtained\ the\ number\ 2}{number\ of\ trials\ performed}$

To calculate a theoretical probability you always need to perform an experiment with n trials.

5 0

3 years ago

The square below represents one whole express the shaded area as a fraction a decimal and a percent of the whole

Pie

Answer:

1). $\frac{81}{100}$

2). 0.81

3). 81%

Step-by-step explanation:

There are total 10×10 = 100 squares in the picture and number of shaded squares = 100 - 19 = 81

Shaded area expressed as the fraction of the whole = $\frac{81}{100}$

Shaded area in decimals of the whole = $\frac{81}{100}=0.81$

Shaded area in percent of the whole = $\frac{81}{100}(100)$ = 81%

4 0

4 years ago

Read 2 more answers

What does it mean for a function to be differentiable?

vesna_86 [32]

The main explanation I was taught in school was that a function is differentiable if it has no sharp turns, like in an absolute value function, and if it completely continuous.

Hope this helps :)

5 0

3 years ago

Plz help! Question is in the picture.

puteri [66]

Answer:

A and C

Step-by-step explanation:

8 0

4 years ago

Solve for x. <br> A.) x=6.<br> B.) 15<br> C.)30<br> D.)90

Alexxx [7]

Answer:

x=30°

Step-by-step explanation:

total angles on a straight line=180°

4x+2x=180°

6x=180°

x=180°/6

:.x=30°.

7 0

3 years ago