First, solve 10x + y = -20 for y: y = -20 - 10x
Next, substitute -20 -10x for y in the second equation:
-20 - 10x = 2x^2 - 4x - 16.
Rearranging, 2x^2 + 6x + 4 = 0
Simplifying, x^2 + 3x + 2 = 0
The roots of this poly eqn are -1 and -2. Therefore, x = -1 and x = -2.
One by one, subst. these x-values into y = -20 - 10x to find the corresponding y-values.
Your answers should look like this: (-1, y) and (-2, y) (different values for y).
Answer:
√3
Step-by-step explanation:
This is a 30-60-90 triangle, in which the side measurements will follow the rule of 1, √3 , 2.
Remember, the smallest side is the one opposite the 30° angle (1), while the hypotenuse is the one opposite the 90° (2).
In this case, the given smallest side measurement is 1. This means that q is 1 x √3 = √3.
√3 is your answer.
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Answer:
I think the answers is 27, just add all of those squares.
