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Ludmilka [50]
3 years ago
10

What is the answer to this

Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0

Answer:

see explanation

Step-by-step explanation:

A polynomial expressed in standard form begins with the term with the largest exponent of the variable then lists the remaining terms in descending order of the exponents.

given

15x^{4} - 6x + 13x² - 1 ← x^{4} has largest exponent, hence

15x^{4} + 13x² - 6x - 1 ← in standard form

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- - The median of a triangle is a line way (segment) meting in the middle of the triangle.

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3 years ago
Read 2 more answers
"<br> Use the following graph to determine the solution(s) of:<br> y= x^2- x - 6
wariber [46]

Answer:

-2 and 3

Step-by-step explanation:

The x-intercepts or where the graph cuts the x-axis represents the zeros of y = x² - x - 6.

Thus, the zeros are -2 and 3. This is where the graph cuts the x-axis.

Therefore, the solutions of the graph are -2 and 3.

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2 years ago
Joe borrowed $2,000 from the bank at a rate of 7% simple interest per year. How much interest did he pay in 5 years?
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Hope this helps :D 

4 0
3 years ago
normally distributed with mean 24.6 seconds and standard deviation 0.64 seconds;the lower finishing time, the better. If the qua
marshall27 [118]

Answer:

z=1.04

And if we solve for a we got

a=24.6 +1.04*0.64=25.27

So the value of height that separates the bottom 85% of data from the top 15% is 25.27.  

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 to the problem

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

X \sim N(24.6,0.64)  

Where \mu=24.6 and \sigma=0.64

Solution to the problem

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.15   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.85 of the area on the left and 0.15 of the area on the right it's z=1.04. On this case P(Z<1.04)=0.85 and P(z>1.04)=0.15

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=1.04

And if we solve for a we got

a=24.6 +1.04*0.64=25.27

So the value of height that separates the bottom 85% of data from the top 15% is 25.27.  

3 0
2 years ago
What is 321 rounded to the nearest 10
shtirl [24]
It would be 330 if rounded to the nearest 10th place
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3 years ago
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