Answer:
look close because that is the question
Step-by-step explanation:
x= | 1 < x < 3
x + 2 < 5 and x - 7 > -6
x < 5 - 2 and x > -6 + 7
I don't know if I am 100% right.
Answer:
Step-by-step explanation:
a=-7
r=21/-7=-3

I believe the answer is A "If a triangle is equilateral, then it has three congruent angles". Hope this helps!
One thing to bear in mind with trigonometric expressions is that, the exponent location is next to the function name, instead of the whole expression, though it applies to the whole thing, namely cos²(x), is really [ cos(x) ]², and that matters for using the chain rule.