I got 20.89, and nearest to the whole number would be 20.
Since x represents the length (in meters), the width, which is 7 meters greater, is x +7. The product of these dimensions is the area (in square meters):
x(x +7) = 170
In standard form, the quadratic is ...
x² +7x -170 = 0
Answer:
yes and 42$ is saved
Step-by-step explanation:
149.99-20%=119.99
119.99-10%=107.99
149.99-107.99=42
Answer:
Step-by-step explanation:
The lines will be parallel if corresponding angles are congruent (z=x) or if adjacent interior angles are supplementary (x+y=180°).
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The other relations can be true without forcing the lines to be parallel.
Addition of a hydronium ion increases its concentration and the solution becomes more acidic, Therefore the pH decreases.