If you were able to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation is substituted into the second equation. 15x-y=-6 5x-3y=-13

The event that your uncle calls you on a Sunday is A and the event your sister calls you on a Tuesday is B. If these events are independent events, using P (A) = 0.42, and P (B) - 0.83, what is P (B|A) ?

Write the equation given the following descriptions. 20. Write the equation of the vertical line through (10, 12). 21. Write the equation of the horizontal line through (-8, - 15).

XYWZ is a quadrilateral with vertices W (1, - 4), X (-4, 2), Y (1, - 1), and Z (-2, - 3). Determine if the quadrilateral is a parallelogram. Use slope to justify your answer.

A herd of antelope currently has 35 members. Based on the available resources, biologists estimate that the size of the herd will increase at a rate of 8% per year.

Which statement is not true? a. every parallelogram is a rectangle. b. every square is a rhombus. c. every square is a parallelogram. d. every rhombus is a parallelogram.

4 divided by 5 minus radical 15

Find the length, d, in simplest radical form, of the diagonal of a cube with sides of s units.

Of the 240 students eating lunch, 96 purchased their lunch and the rest brought a bag lunch. what is the ratio of students purchasing lunch to students bringing a bag lunch?

The heights of 500 students at a local school were recorded and found to be approximated by the normal curve below. Which answer could represent the mean and standard deviation for these data? a. 69, 6 c. 69, 3 b. 72, 4 d. 60, 3

How do I answer (4w^4z) (7w^5z^3)