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Fudgin [204]
3 years ago
9

There is a bag filled with 4 blue, 3 red and 5 green marbles. A marble is taken at random from the bag, the colour is noted and

then it is replaced. Another marble is taken at random. What is the probability of exactly 1 red?
Mathematics
1 answer:
Ivanshal [37]3 years ago
8 0

Answer:

There is an 25% chance of getting a red marble

Step-by-step explanation:

4+3+5=12

3/12=.25

put the decimal over two spaces and you get 25%

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A sequence is shown.
marin [14]

Answer:

Step-by-step explanation:

The given sequence of numbers is increasing in geometric progression. The consecutive terms differ by a common ratio, r

Common ratio = 6/3 = 12/6 = 2

The formula for determining the nth term of a geometric progression is expressed as

Tn = ar^(n - 1)

Where

a represents the first term of the sequence.

r represents the common ratio.

n represents the number of terms.

From the information given,

a = 3

r = 2

The function, f(n), representing the nth term of the sequence is

f(n) = 3 × 2^(n - 1)

6 0
3 years ago
Queston 132
Sever21 [200]

Answer:

68cm^2

Step-by-step explanation:

<h2>A trapezium is a type of quadrilateral with the two opposite sides parallel.</h2>

Area of a trapezium= 1/2(sum of parallel sides)×height

Area of the trapezium= 1/2(5+3)×17

Area of the trapezium= 1/2(8)×17

Area of the trapezium=4×17= 68cm^2

4 0
2 years ago
In quadrilateral WXYZ, WC = 2x + 5 and CY = 3x + 2. What must x equal for quadrilateral WXYZ to be a parallelogram?
Drupady [299]
The diagonals of a parallelogram bisect each other.
Therefore WC = CY.
That is,
2x + 5 = 3x + 2
Subtract 2x from each side.
5 = 3x - 2x + 2
5 = x + 2
Subtract  from each side.
5 - 2 = x + 2 - 2
3 = x

Answer:  x = 3

4 0
3 years ago
Read 2 more answers
Which relation is a function of x?
jeka94

Answer:

1

Step-by-step explanation:

3 0
3 years ago
Sally has 21 books Sam has 24 times more books than sally how many books does Sam have
Nostrana [21]
I think 504 cause you times 24 by 21 cause it says 24 times more. Hope this is right.
5 0
3 years ago
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