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3 years ago

Is the following relation a function ?

Mathematics

1 answer:

Sergio039 [100]3 years ago

4 0

Answer:

yea

Step-by-step explanation:

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Expand and combine like terms.<br> (7b^5 – b^2)^2

KiRa [710]

I got 49b^10-14b^7+b^4

7 0

2 years ago

Can someone please help me outt

saveliy_v [14]

Answer:

ASA

Step-by-step explanation:

We can see that the triangle has at least one similar side and one similar angle. We can also see that the triangles meet at a point, so they must have the same angle at that point where they connect. So that leads us to our answer being ASA since they have two similar angles and one similar side. This is the answer that I think is correct just by looking at the image. I haven't take this class since last year, so this is simply from memory. Correct me if I am wrong!

6 0

2 years ago

A scientist wants to research the potential spread of germs by contact. she knows that the number of possible handshakes within

Viefleur [7K]

Given that <span>the number of possible handshakes within a group of n people is given by the equation:

</span> $N= \frac{1}{2} (n^2-n)$
<span>
Given that there are 105 people at a party, the number of possible handshakes is given by:

</span> $N= \frac{1}{2} (105^2-105) \\ \\ = \frac{1}{2} (11025-105)=10920$ <span>
</span>

8 0

2 years ago

Write the expression in factored form x^2 + 12x + 36

Alex Ar [27]

(x + 6) (x + 6)

(x + 6)^2

6 0

2 years ago

he life of light bulbs is distributed normally. The variance of the lifetime is 625 and the mean lifetime of a bulb is 540 hours

almond37 [142]

Using the normal distribution, it is found that there is a 0.877 = 87.7% probability of a bulb lasting for at most 569 hours.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

$\mu = 540, \sigma = \sqrt{625} = 25$

The probability of a bulb lasting for at most 569 hours is the <u>p-value of Z when X = 569</u>, hence:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{569 - 540}{25}$

Z = 1.16

Z = 1.16 has a p-value of 0.877.

0.877 = 87.7% probability of a bulb lasting for at most 569 hours.

More can be learned about the normal distribution at brainly.com/question/24663213

#SPJ1

8 0

1 year ago