2x+ky=7 and 4x-9y=4 find value of k if matrix of coefficients is singular

Domain of y=∛-3x+5 I don't seem really to grasp the concept of prime roots. It said on symbolab that the domain is (-∞,∞), but how?

Which is the best measure of center for third period and why? Interquartile range, because there is 1 outlier that affects the center Standard deviation, because there are no outliers that affect the center Mean, because there are no outliers that

Use distributive property to simplify 5 (6x - 2)

Describe a situation with an output of area in square feet that can be modeled using the function f (x) = (x) (2x + 5).

The ratio of the number of boys to the number o girls in a theater is 7:9. There are 42 boys in the theater. How many children are in the theater

Seven three squared plus ten

Which exponential equation is equivalent to the logarithmic equation below? c = ln 2

What is £390 shared as 5:8 ratio

Types 120 words in 100second. How many seconds does it take to type 258

Write a ratio for the following description: Kaleel made three times as many baskets as john during basketball practice.