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probability of randomly drawing cards

What is the probability of randomly drawing either an ace or a heart from a deck of 52 playing cards?

Total number of points scored by them

Max and Mary play in a chess game. If the ratio of points scored by Max to points scored by Mary is 6 to 2, which of the following could be the total number of points scored by them?

Write first three terms

Write first three terms
an = (n-5)/5

The average of six numbers

The average of six numbers is 4.
If the average of two of those numbers is2,
What is the average of the other four numbers?

Solve for θ

Solve for θ

2 tan 2θ = tanθ+1

Solve for X

Solve for X
3 sin 2 x – 5 sin x +2=0