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zysi [14]
2 years ago
9

what is the probability that a number selected at random from integers 3 to 30 inclusive is a multiple of 3 ​

Mathematics
2 answers:
erma4kov [3.2K]2 years ago
6 0

Answer:

5/14

Step-by-step explanation:

Sample space : { 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 }

P ( multiple of 3 ) : 10/28

= 5/14

Daniel [21]2 years ago
3 0

Answer:

5/14 if I'm not wrong!

I hope it will be useful.

Step-by-step explanation:

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In the diagram below of triangle PQR, S is the midpoint of PR and T is the
Nina [5.8K]

Answer:

ST = 4

Step-by-step explanation:

A segment joining the midpoints of 2 sides of a triangle is half the length of the third side.

ST = \frac{1}{2} PQ substitute values

- 32 + 9x = \frac{1}{2} (- 5x + 28) ← multiply both sides by 2 to clear the fraction

- 64 + 18x = - 5x + 28 (add 5x to both sides )

- 64 + 23x = 28 ( add 64 to both sides )

23x = 92 ( divide both sides by 23 )

x = 4

Then

ST = - 32 + 9x = - 32 + 9(4) = - 32 + 36 = 4

5 0
3 years ago
A regular octagon has what type of symmetry?
ELEN [110]

Answer:

C

Step-by-step explanation:

A regular octagon has 8 lines of symmetry.

The point of intersection of the lines of symmetry of a regular octagon is the point of symmetry.

6 0
3 years ago
A probability experiment will consist of selecting one of two stacks of cards, and then choosing a card at random from the stack
postnew [5]

Answer:

The probability that the red card came from the first stack is:

40%

Step-by-step explanation:

a) Data and Calculations:

Stack         Red      Blue   Total

First            6           5         11

Second      9            0         9

Total         15            5       20

The probability of selecting from the first stack = 50% since equal opportunity is given to the two sacks.

The probability of red card from the first stack = 6/15 = 0.4 = 40%.

b) The probability that the red card came from the first stack is given by the number of red cards in the first stack divided by the number or red cards in the two stacks.  This is equal to 6/15 = 0.4 or 40%.

4 0
3 years ago
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krek1111 [17]

Do you have a graph for your question?

4 0
3 years ago
Read 2 more answers
Don't forget! If you multiply or divide by a negative number, you must
LUCKY_DIMON [66]

Answer:

c > 20

make a number line that starts with the number 16 and ends with 22.

on the number 20 circle it (don't fill in the circle).

then draw an arrow to the right on top of the circle that you circled.

Step-by-step explanation:

7 0
3 years ago
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