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3 years ago

13

Use this formula to find all the solutions of the equation. (Round terms to four decimal places)

1 answer:

Misha Larkins [42]3 years ago

3 0

I might be misreading something here but if:

x^5+243=0 subtract 243 from both sides

x^5=-243 raise both sides to the 1/5 power (or take the fifth root of both sides)

x=-3

So there is only one solution, x=-3

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The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard de

qaws [65]

Answer: a. 0.6759 b. 0.3752 c. 0.1480

Step-by-step explanation:

Given : The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes

i.e. $\mu = 6.3$ minutes

$\sigma=2.2$ minutes

Let x be the long-distance call length.

a. The probability that a call lasts between 5 and 10 minutes will be :-

$P(5$

b. The probability that a call lasts more than 7 minutes. :

$P(X>7)=P(\dfrac{X-\mu}{\sigma}>\dfrac{7-6.3}{2.2})\\\\=P(Z>0.318)\ \ \ \ [z=\dfrac{X-\mu}{\sigma}]\\\\=1-P(Z$

c. The probability that a call lasts more than 4 minutes. :

$P(X$

8 0

3 years ago

Evaluate the expression for x = -2, y = 3, z = -4. -4x + 5y + 6z *

babunello [35]

Answer:

-1

Step-by-step explanation:

Plug in given values

-4x + 5y + 6z

-4(-2) + 5(3) + 6(-4)

8 + 15 -24

23-24

-1

6 0

2 years ago

Read 2 more answers

this reading selection is a special kind of advertisement called a... a.diagram b.flier c.menu d.fhoto please answer

eimsori [14]

Probably b. flyer

Of course, it's tough to tell without the selection.

7 0

3 years ago

WILL MARK U AS BRAINLIEST PLZ HELP

Radda [10]

Answer:

112 if you don't include the triangle sides as they are not necessary, but 124 if you include one triangle and 136 if you include both triangle sides

5 0

2 years ago

In circle O, the length of radius OL is 6 cm and the length of arc LM is 6.3 cm. The measure of angle MON is 75°

djyliett [7]

Answer:

14.2cm

Step-by-step explanation:

Complete question:

<em>In circle O, the length of radius OL is 6 cm and the length of arc LM is 6.3 cm. The measure of angle MON is 75°. </em>

<em>Rounded to the nearest tenth of a centimeter, what is the length of arc LMN? </em>

<em></em>

Find the diagram attached

arc LN= arc LM + arc MN

First we need to get the arc MN

length of an arc = theta/360 * 2πr

length of arc MN = 75/360 * 2(3.14)(6)

length of arc MN = 0.20833*37.68

length of arc MN = 7.85

Hence;

arc LN = 6.3 + 7.85

arc LN = 14.15cm

Hence the length of arc LN is 14.2cm

8 0

3 years ago