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2 years ago

11

Light travels at a rate of about 9,460,528,400,000,000 m per year. approximately how many meters does light travel per second? c

hoose one answer
(A) 3x10^8 meters per second
(B)3X10^9 meters per second
(C) 3x10^10 meters per second

1 answer:

Artemon [7]2 years ago

5 0

Answer:

A

Step-by-step explanation:

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Human visual inspection of solder joints on printed circuit boards can be very subjective. Part of the problem stems from the nu

olga_2 [115]

Answer:

a

The probability that the selected joint was judged to be defective by neither of the two inspectors is $P(A' n B' ) = 0.8855$

b

The probability that the selected joint was judged to be defective by inspector B but not by inspector A is $P(A' n B) =0.0403$

Step-by-step explanation:

From the question we are told that

The sample size is $n_s = 10000$

The number of outcome for inspector A is $n__{A}} = 742$

The number of outcome for inspector B is $n__{B}} = 745$

The number of joints judged defective by both inspector is $n(A u B) = 1145$

The the probability that the selected joint was judged to be defective by neither of the two inspectors is mathematically represented as

$P(A' n B' ) = 1 - P(A u B)$

Now

$P(A\ u \ B) = \frac{n(Au B)}{n_s }$

substituting values

$P(A\ u \ B) = \frac{1145}{ 10 000 }$

So

$P(A' n B' ) = 1 - \frac{1145}{10 000}$

$P(A' n B' ) = 0.8855$

the probability that the selected joint was judged to be defective by inspector B but not by inspector A is mathematically represented as

$P(A' n B) = P(A \ u \ B) -P(A)$

Now

$P(A) = \frac{n__{A}}{n_s}$

substituting values

$P(A) = \frac{742}{10 000}$

So

$P(A' n B) = \frac{1145}{10 000} - \frac{742}{10 000}$

$P(A' n B) =0.0403$

7 0

3 years ago

If a right circular cone has radius 4 cm and slant height 5cm then what is its volume?

lyudmila [28]

Answer:

V≈50.27cm³

Step-by-step explanation:

Using the formulas

V=πr2h

3

l=r2+h2

Solving forV

V=1

3πr2l2﹣r2=1

3·π·42·52﹣42≈50.26548cm³

6 0

2 years ago

Make a list of at least five words to match the following category.

frez [133]

Answer:

aroma.

bouquet.

fragrance.

perfume.

savor

Step-by-step explanation:

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2 years ago

3. Miss. Mead pays Miss. Adams $160.00 per week. She works 40 hours per week. Miss. Adams

Leno4ka [110]

Answer:

B. $18.00

Step-by-step explanation

160/4 divide 160 by 4 to see how much Miss Adams makes and hour

She makes $4 an hour

multiply this ($4) by her idle time (4.5) hours to get $18

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2 years ago

An are whose measure is exactly 180°

Elenna [48]

Answer:

<u><em>Mmeasure is exactly 180°</em></u>

semi-circle because the measure of a whole circle is 360°.

<u><em> Arc :</em></u>

The arc of a circle consists of two points on the circle and all of the points on the circle that lie between those two points. It's like a segment that was wrapped partway around a circle. An arc is measured not by its length (although it can be, of course) but most often by the measure of the angle whose vertex is the center of the circle and whose rays intercept the endpoints of the arc. Hence an arc can be anywhere from 0 to 360 degrees.

5 0

2 years ago