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Kaylis [27]
2 years ago
14

Which product of prime polynomials is equivalent to 36x3 – 15x2 – 6x??

Mathematics
2 answers:
melisa1 [442]2 years ago
6 0

Answer:

The answer is B: 3x(3x – 2)(4x + 1)

Step-by-step explanation:

First you use the x method t

Then you  find a and c

After you find and c you times them together

Now you look for b

Now you have to find a number that equals a&c and adds to 10

now you place the numbers in (    )

and boom you get

B: 3x(3x – 2)(4x + 1)

HOPE THIS HELPS YOU STAY SAFE:)

eimsori [14]2 years ago
4 0
Factor ouf 3x
3x(12x^2-5x-2)
factor
(3x)(3x-2)(4x+1)
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1/3−1/2=− -1/6

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1....Complete the multiplication and the equation becomes ....The two fractions now have like denominators so you can subtract the numerators. This fraction cannot be reduced.....and that's how i got the answer

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2 years ago
Name the polygon. State whether it is convex or concave.
valina [46]

Answer:

Pentagon, convex

Step-by-step explanation:

All of the interior angles are less than 180. Hope this helps.

7 0
3 years ago
Read 2 more answers
The heights of 1/4 sheet cakes baked by a bakery have been normally distributed with a mean of μ = 2.05 inches and a standard de
jasenka [17]

Answer:

1. Null hypothesis:\mu = 2.05    

Alternative hypothesis:\mu \neq 2.05  

2. P(Z>a)=0.025, P(Z

And the value of a that satisfy this is a=1.96. So our critical regions are: (-\infty,-1.96), (1.96,\infty)

3. z=\frac{2.01-2.05}{\frac{0.12}{\sqrt{9}}}=-1  

4. If we compare the p value and a significance level assumed \alpha=0.05 we see that p_v>\alpha so we can conclude that we FAIL to reject the null hypothesis, and the actual true mean for the heights is NOT significant different than 2.05. Using the critical region founded on part 2 we agree with the decision obtained with the p value since -1 is not on the critical zones, so we FAIL to reject the null hypothesis.  

Step-by-step explanation:

Data given and notation    

\bar X=2.01 represent the sample mean  

\sigma=0.12 represent the standard deviation for the population    

n=9 sample size    

\mu_o =2.05 represent the value that we want to test    

\alpha=0.05 represent the significance level for the hypothesis test.    

z would represent the statistic (variable of interest)    

p_v represent the p value for the test (variable of interest)    

1) The null and alternative hypotheses should be ?    

We need to conduct a hypothesis in order to determine if the mean change from 2.05, the system of hypothesis would be:    

Null hypothesis:\mu = 2.05    

Alternative hypothesis:\mu \neq 2.05  

 2. Using the critical value to set up the decision rule, the decision rule should be?

For this case we need two critical values since we are conducting a two tailed test. We have this equality:

P(Z>a)=0.025, P(Z

And the value of a that satisfy this is a=1.96. So our critical regions are: (-\infty,-1.96), (1.96,\infty)

3. The test statistic of this test is?

We know the population deviation, so for this case is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:    

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)    

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".    

We can replace in formula (1) the info given like this:    

z=\frac{2.01-2.05}{\frac{0.12}{\sqrt{9}}}=-1  

4. The conclusion of this test should be

Since is a two tailed test the p value would be:    

p_v =2*P(Z    

Conclusion    

If we compare the p value and a significance level assumed \alpha=0.05 we see that p_v>\alpha so we can conclude that we FAIL to reject the null hypothesis, and the actual true mean for the heights is NOT significant different than 2.05. Using the critical region founded on part 2 we agree with the decision obtained with the p value since -1 is not on the critical zones, so we FAIL to reject the null hypothesis.    

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2 years ago
A cyclist rides her bike at a speed of 18 kilometers per hour. What is the sped in kilometers per minute? How many kilometers wi
Alexeev081 [22]

Answer:

speed: .3 kilometers a minute. Distance traveled in 10 minutes: 3 kilometers

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