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3 years ago

Determine the value of X

Mathematics

1 answer:

Ulleksa [173]3 years ago

5 0

Answer:

We need some form of question other then Determine the value of X.... or equation

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Help quick i need help

nasty-shy [4]

Answer: I think its D

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If i subtract my number, then square the result, I get the same answer as if i square my number, then subtract 20 from the resul

Nitella [24]

The Algebraic equations (x - 20)² and x² - 20 have an equal value My number is 6.

<h3>What is an Algebra equation?</h3>

Algebra is the study of mathematical symbols and the rule involves manipulating these mathematical symbols.

I think of a number, if I subtract 10 from my number, then square the result, I get the same answer as if I square my number, then subtract 20 from the result.

Let the number be x.

If I subtract 20 from my number that is x - 20 then square the result that is (x-20)².

And if I square my number that is x² then subtract 20 from the result that is x² - 20.

Both the result are the same then we have

(x - 20)² = x² - 20

x² - 20x + 100 = x² - 20

-20x + 100 = -20

x = 6

My number is 6

More about the Algebra equation link is given below.

brainly.com/question/953809

4 0

2 years ago

Select all that apply.

BlackZzzverrR [31]

Answer:

A. Divide by 100

C. Move the decimal point two places to the left

Step-by-step explanation:

To write a percent as a decimal, divide by 100 or move the decimal point two places to the left.

5 0

4 years ago

Their sum is -8 and their product is -209

lilavasa [31]

Your answer is -206 just subtract

4 0

3 years ago

Read 2 more answers

A major hurricane is a hurricane with wind speeds of 111 miles per hour or greater. During the 20th century the mean number of t

Bas_tet [7]

Answer:

a) 0.3293 = 32.93% probability that the number of major hurricane to strike U.S mainland in any any give year is exactly one.

b) 0.878 = 87.8% probability that the number of major hurricane to strike U.S mainland in any any give year is at most one.

c) 0.122 = 12.2% probability that the number of major hurricane to strike U.S mainland in any any give year is more than one.

Step-by-step explanation:

We have the mean during an interval, which means that the Poisson distribution is used to solve this question.

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

During the 20th century the mean number of the major hurricanes to strike U.S mainland per year was 0.6.

This means that $\mu = 0.6$

Find the probability that the number of major hurricane to strike U.S mainland in any any give year is:

a) Exactly one

This is P(X = 1). So

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 1) = \frac{e^{-0.6}*0.6^{1}}{(1)!} = 0.3293$

0.3293 = 32.93% probability that the number of major hurricane to strike U.S mainland in any any give year is exactly one.

b) At most one

This is:

$P(X \leq 1) = P(X = 0) + P(X = 1)$

Then

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-0.6}*0.6^{0}}{(0)!} = 0.5488$

$P(X = 1) = \frac{e^{-0.6}*0.6^{1}}{(1)!} = 0.3293$

$P(X \leq 1) = P(X = 0) + P(X = 1) = 0.5488 + 0.3292 = 0.878$

0.878 = 87.8% probability that the number of major hurricane to strike U.S mainland in any any give year is at most one.

c) More than one

This is:

$P(X > 1) = 1 - P(X \leq 1) = 1 - 0.878 = 0.122$

0.122 = 12.2% probability that the number of major hurricane to strike U.S mainland in any any give year is more than one.

6 0

3 years ago