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3 years ago

Find the nonpermissible replacement for n in this expression. -2 5n

Mathematics

1 answer:

algol133 years ago

8 0

Answer:

It is: minus five multiplied by n = -5n

Step-by-step explanation:

i geuss

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Yeah uh I have no idea how to do this.....

Liula [17]

Answer:

9b /a^5/2

Step-by-step explanation:

9√(a^-5 b^2)

9 sqrt( a^ -5 b^2)

Rewriting sqrt as ^1/2

9 ( a^ -5 b^2)^1/2

9 ( a^ -5) ^1/2 ( b^2)^1/2

we know that an exponent to an exponent means multiply

9 a^ (-5*1/2) b^(2*1/2)

9 a^-5/2 b^1

9b a^ -5/2

We know that x^-y = 1/x^y

9b /a^5/2

4 0

3 years ago

Read 2 more answers

Calculate the area and the perimeter of the figure

Otrada [13]

Answer:

Area: 5 cm squared

Perimeter: 12 cm

Step-by-step explanation:

The area is Length times Width, and there is 5 different sqaures in the figure.Each sqaure has an area of 1 by 1, which is 1. 1 times 5 is 5. So the area is 5. You can get the perimeter by adding all the side lengths together, 2+3+2+1+1+1+1+1=12. The perimeter is 12. Hope this helps.

6 0

3 years ago

Find the zeros of the function<br>m (x) = x+6x?<br><br>find the 0 multiplicity

Aleonysh [2.5K]

Answer:

6x^2 Denadaaaaaaaaaaaaaaaaa

8 0

4 years ago

What number is 60 percent of 21.8

Mrac [35]

So, first, since 21.8 is a whole thing and you need a part, write x/21.8. Then, compare it to 60/100, or 60%. 100/21.8=4.76. So, divide 60/4.76 and your answer is 12.6.

Glad to help.

-A

8 0

4 years ago

It has been observed that electrical connectors manufactured by Jolt Electrical Supply Company last an average of 18.2 months an

Juli2301 [7.4K]

Answer:

340

Step-by-step explanation:

The first step is finding the percentage of those who fail within 19 months.

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 18.2, \sigma = 1.7$

The proportion is the pvalue of Z when X = 19. So

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

$Z = \frac{19 - 18.2}{1.7}$

$Z = 0.47$

$Z = 0.47$ has a pvalue of 0.6808.

Jolt is expected to replace 0.6808 of the connectors sold. Out of 500, that is, on average, 0.6808*500 = 340.

Jolt expects to replace, on average, 340 of the connectors sold.

4 0

3 years ago