75, 80, 86, 88, 72, 80 Find the Mean of the data set *
2 answers:
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When taking square roots, you can't take square roots of negative roots of negative numbers. So, what will work for the domain of u(x) is what makes u(x) zero or more. We can make an inequality for that.
u(x) ≥ 0.
9x + 27 ≥ 0 by squaring both sides
9x ≥ -27
x ≥ -3
So the domain of the function is when x ≥ -3 is true.
Answer:
the solution is (9, -1).
Step-by-step explanation:
graph the two equations on a graphing calculator (i use a website called desmos) and the point of intersection is the solution.
i hope this helps! have a great day <3
Answer:
AC = 14 cosec(68)
Explanation:
Here given:
- angle: 68°
- opposite: 14 ft
- hypotenuse: AC
Use sine rule: