Problem 3 : Using In the pattern in the image below , how many dots would be in Step 4

T4 = 13

Step-by-step explanation:

Using arithmetic progression

Tn = a + (n - 1)d

Where a - first term

n - n^th term

d - common difference

yes because a quadrilateral is equal to 4 sides and a rhombus has 4 sides so technacly it is a quadrilateral.

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500