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Butoxors [25]
3 years ago
13

Plz help! solve for p

Mathematics
2 answers:
Alex3 years ago
5 0

Because p squared is equal to -25, the square root of -25 is equal to p.

Because of this, finding the square root of -25 will give us our answer.

\sqrt{-25} = 5i

Therefore, p = 5i or p = \sqrt{-25}.

<em>Hope this helped! :)</em>

Ganezh [65]3 years ago
4 0

Answer:

p = - 5i or p = 5i

Step-by-step explanation:

Noting \sqrt{-1} = i

Given

p² = - 25 ( take the square root of both sides )

p = ± \sqrt{-25} = ± \sqrt{25(-1)} = ± 5i

Thus

p = - 5i or p = 5i

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That it wiil not equal out to be the same unless one of them start with money
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3 years ago
A machine fills containers with a particular product. Assume the filling weights are normally distributed with a variance of 0.1
Ghella [55]

Answer:

z=-0.674

And if we solve for \mu we got

\mu=12 +0.674*0.4=12.270

So then the mean is 'mu = 12.270 for this case.

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

X \sim N(\mu,\sqrt{0.16}= 0.4)  

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

P(X>12)=0.85   (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 0.25 of the area on the left and 0.85 of the area on the right it's z=-0.674. On this case P(Z<-0.674)=0.25 and P(z>-0.674)=0.85

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=-0.674

And if we solve for \mu we got

\mu=12 +0.674*0.4=12.270

So then the mean is 'mu = 12.270 for this case.

8 0
3 years ago
Help me pleasseeee :)
iVinArrow [24]
 3x+7 = 51-x
4x = 44
x = 11

answer
x = 11
4 0
3 years ago
Please solve it help me ..............<br>​
Sedbober [7]

Answer:

(a) = iv

b = i

c= ii

d = iii

Q-3

- radical 3

Step-by-step explanation:

8 0
2 years ago
What is the answer to 8(3.5x−2)≥40
sammy [17]

Answer:

<em>x ≥ 2</em>

Step-by-step explanation:

Distribute 8:

8 (3.5x - 2) ≥ 40

28x - 16 ≥ 40

Add 16:

28x ≥ 40 + 16

28x ≥ 56

Divide by 28:

x ≥ 56 ÷ 28

x ≥ 2

8 0
3 years ago
Read 2 more answers
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