Answer:
x = 55°
Step-by-step explanation:
We have an isoceles triangle.
So the base angles of this triangle measure 55 degrees.
Function a is a linear equation
Answer:
y = 2 3/8
Step-by-step explanation:
7. G
8. L
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18. R
Answer:
The range is [-11, ∞).
Step-by-step explanation:
f(x)=3x^2+6x-8
This is a parabola which opens upwards.
Convert to vertex form:
= 3(x^2 + 2x) - 8
= 3 [ (x + 1)^2 - 1] - 8
= 3(x + 1)^2 - 3 - 8
= 3(x + 1)^2 - 11.
The minimum value is -11 so the range is [-11, ∞).
Step-by-step explanation: