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3 years ago

Simplify the expression by combining like terms. Then, classify the simplified expression by degree and number of terms.

Mathematics

1 answer:

Reptile [31]3 years ago

7 0

The answer is 3p^4-4p (4th degree[i think] binomial[i know])

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Todd Holland from NY grows pumpkins. He studied his past records carefully and concluded that his biggest pumpkins are distribut

ehidna [41]

Answer:

$P(X>1000)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(X>1000)=P(\frac{X-\mu}{\sigma}>\frac{1000-\mu}{\sigma})=P(Z>\frac{1000-950}{50})=P(z>1)$

And we can find this probability using the complement rule and the normal standard table and we got:

$P(z>1)=1-P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(950,50)$

Where $\mu=950$ and $\sigma=50$

We are interested on this probability

$P(X>1000)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(X>1000)=P(\frac{X-\mu}{\sigma}>\frac{1000-\mu}{\sigma})=P(Z>\frac{1000-950}{50})=P(z>1)$

And we can find this probability using the complement rule and the normal standard table and we got:

$P(z>1)=1-P(z$

5 0

3 years ago

F(x) = X^2. what is g(x) A. g(x) = x^2 - 4 B. g(x) = x^2 + 4 C. g(x) = -4x^2 D. g(x) = -x^2 - 4

kherson [118]

Answer:

The answer should be D.

Step-by-step explanation:

You've already know the graph of x^2. The graph of g(x) is going to the opposite side of the xy coordinate, so it should be -x^2. Plus the graph of g(x) was shifted down 4 units from the origin, so the equation of g(x) is -x^2-4.

Hope this help.

7 0

4 years ago

I WILL MARK BRAINLIEST

Ivanshal [37]

Answer:

Step-by-step explanation:

<u></u>

A boxed area represents 25% of the data set. This means that 70-85 is 25% and 85-100 is 25%

25%+25%=50%

6 0

2 years ago

The Sum of two numbers is six what number is 15 less than two times the second number what are the numbers

Ugo [173]

Answer:

9 and -3

Step-by-step explanation:

Let the first number be x

Second number = y

x + y = 6

x = 15 - 2y

15 - 2y + y = 6

15 - y = 6

-y = 6 - 15

-y = -9 ( - sign gets cut cuz there is - sign at both the sides)

Therefore, first number = 9

x + y = 6

x = 9 = 6

x = -3

Therefore, second number = -3

Proof:

9 + (-3) = 6

Hope this helps

3 0

4 years ago

Help please!!!<br> √−100 = + i

Semmy [17]

Answer:

$\sqrt{-100}=10i$

Step-by-step explanation:

If you're asking what is $\sqrt{-100}$ :

$\sqrt{-1}\sqrt{100}\\\sqrt{100}i\\10i$

Otherwise, $\sqrt{-100}=i$ is not true.

3 0

4 years ago