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morpeh [17]
4 years ago
12

Sample of 3 items is selected at random from a box containing 20 items of which 4 aredefective. find the expected number of defe

ctive items in the sample.
Mathematics
1 answer:
azamat4 years ago
6 0
That's 54 I think. 20x3=60-4=54
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It takes Adara 3 hours to drive from Ashdown to Bridgeton at an average speed of 60 mph.
Scrat [10]

Answer:

61.2 mph

Step-by-step explanation:

Let's first calculate the individual legs of Adara's trip in terms of both time and distance:

<u>Ashdown to Bridgeton</u>

3 hr at 60 mph = 180 miles in 3 hours

<u>Bridgeton to Carton</u>

30 miles at 70 mph:  30 miles/(70 miles/hour) = 0.429 hours

<u>Total Trip</u>

Miles = 180 + 30 = 210 miles

Time = 3 + 0.429 = 3.429 hours

Average speed is (210 miles)/(3.429 hours) = 61.25 or 61.2 miles/hour to 1 decimal point.

8 0
3 years ago
Using the drawing, if the measure of angle 2 is 42 and the measure of angle 3 is 52, what is the measure of angle 6
AleksandrR [38]

(2x10) +22=42

(3x10) +22=52

(6x10) +22=82



Step-by-step explanation:


3 0
4 years ago
What is the mean of the following set of numbers? 121, 347, 45, 21, 300, 614, 312, 333, 421
Norma-Jean [14]
The mean is 279.3 repeating.
5 0
3 years ago
Read 2 more answers
Which benchmark is between 3/7 and 16/20 <br><br> Answers between 1/2 and 1 whole?
kicyunya [14]

Answer:

140

Step-by-step explanation:

I think you mean "lowest common denominator" where you use the word "benchmark."

The LCD of 3/7 and 16/20 is 140; 140 is the smallest number evenly divisible by both 7 and 20.

Then 3/7 → 60/140 and 16/20 → 112/140.   112/140 is between 1/2 and 1.

5 0
4 years ago
A function is represented by the values in the table.
emmasim [6.3K]

Answer:

IS LINEAR

Step-by-step explanation:

3 0
3 years ago
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