Answer:
6x-5
Step-by-step explanation:
We have to find 2 sides added together, so we do (24x-20)/2=12x-10. (12x-10)/2=6x-5, so it is 6x-5.
a(n) = 90 · 3^(n-1)
a(5) = 90 · 3^(5-1) = 90·3⁴ = 90·81 = 7290
Answer: D. 7290
Answer:
Step-by-step explanation:
Sorry I can’t help on this one
Answer:
Yes
Step-by-step explanation:
I used the Pythagorean theorem
The inequalities are
y ≤ 2x + 1
and
y > -2x -3
Conveniently, they are already in slope-intercept form. Looking at the inequalities, we know off the bat there will be one dotted line and one solid line, since one is a "greater than" inequality (dotted line) and the other is "greater than or equal to" (solid line). This automatically rules our option B and C.
-The solid line will have a slope of 2 and a y-intercept of 1
-The dotted line will have a slope of -2 and a y-intercept of -3.
Both option A and D satisfy this, so which one has correct shading?
Option D has the shaded region below the solid line and above the dotted line, which agrees with our system of inequalities.
Answer is D