4. which cannot describe a system of linear equations?
a) no solution
b) exactly two solution
c) infinite solutions
d) exactly one solution

A system of linear equation can have no solutions , many solutions or exactly one solution .

Let's check out example of each.

So all of these describes a system of  linear equations except two solutions.

So the correct option is B

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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