20 points i will mark brainiest Question 4

(08.03)

Solve the system of equations and choose the correct answer from the list of options.

x − y = 7

y = 3x + 12

Question 4 options:

1)

2 over 19 comma 2 over 33

2)

negative 2 over 19 comma negative 33 over 2

3)

negative 19 over 2 comma negative 33 over 2

4)

19 over 2 comma 33 over 2

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)