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3 years ago

Simplify the expression

Mathematics

1 answer:

Brums [2.3K]3 years ago

8 0

Answer is A m^7/n^2 -----------------

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A professor pays 25 cents for each blackboard error made in lecture to the student who pointsout the error. In a career ofnyears

arsen [322]

Answer:

The correct answer is "0.0000039110".

Step-by-step explanation:

The given values are:

$Y_n\rightarrow N(\mu, \sigma^2)$

$\mu = 40n$

$\sigma^2=100n$

$n=20$

then,

The required probability will be:

= $P(Y_{20}>1000)$

= $P(\frac{Y_{20}-\mu}{\sigma} >\frac{1000-40\times 20}{\sqrt{100\times 20} } )$

= $P(Z>\frac{1000-800}{44.7214} )$

= $P(Z>\frac{200}{44.7214} )$

= $P(Z>4.47)$

By using the table, we get

= $0.0000039110$

6 0

2 years ago

The ropes on either side of a swing are 1.9 m long. If a child swings through a arc length of 0.9 Determine the angle (in radian

Yuliya22 [10]

Answer:

theta = 9/19 radians or approximately .4737 radians

Step-by-step explanation:

The formula for arc length is

S = r theta

where theta is in radians. Lets put in what we know. The radius would be 1.9 since the ropes would be the radius.

.9 = 1.9 theta

Divide by 1.9 on each side.

.9/1.9 = theta

theta = 9/19 radians

or in decimal form it is approximately .4737 radians

7 0

3 years ago

What is the Oder of 7/10 7/8 7/12 7/9

Flauer [41]

Least to Greatest Order -

7/12, 7/10, 7/9, 7/8
(Least) (Greatest)

5 0

2 years ago

Read 2 more answers

Solve for x<br> HELP PLEASE

Anna11 [10]

X = 2gc/q + d/q - r/q

7 0

3 years ago

I need to find the x pls help and show work

valentinak56 [21]

Answer:

$--------------------------------------------$

It is 9

$--------------------------------------------$

Step-by-step explanation:

$--------------------------------------------$

If the top and the bottom are the same, (shown in the larger model), then the top and bottom in the smaller model should be the same, which gives me 9.

$--------------------------------------------$

Good luck!

3 0

2 years ago