Answer:
Learn to find the sine, cosine, and tangent of 45-45-90 triangles and also ... Until now, we have used the calculator to evaluate the sine, cosine, and tangent of an angle. However, it is possible to evaluate the trig functions for certain angles without ... This is because there are two special triangles whose side ratios we know!
Step-by-step explanation:
Answer:
f(x + 1) = 2x² + 4x + 5
Step-by-step explanation:
Step 1: Plug in (x + 1) in as <em>x</em> in f(x)
f(x + 1) = 2(x + 1)² + 3
Step 2: Expand and distribute
f(x + 1) = 2(x² + 2x + 1) + 3
f(x + 1) = 2x² + 4x + 2 + 3
f(x + 1) = 2x² + 4x + 5
The first inequality is
(2/3)x - 3 ≥ y
or
y ≤ (2/3)x - 3 (1)
The second inequality is
y + (2/3)x < 4
or
y < 4 - (2/3)x (2)
A graph of the two inequalities indicates the solution as a shaded region in the figure below.
Answer:
-2.25
Step-by-step explanation:
you gotta divide -4/5 by 2