A card is drawn at random from a standard pack of playing cards.
Then a fair coin is flipped.
What is the probability of selecting a black card and the coin landing on heads?

1/4

Step-by-step explanation:

Half of the cards are black, so P(black) = 1/2.

A fair coin has equal probabilities, so P(heads) = 1/2.

Therefore, P(black and heads) = 1/2 × 1/2 = 1/4.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length