Can someone help me with this??
1 answer:
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(C) (-2, -36) . . . . . . is the appropriate choice
_____
An easy way to tell is to let a graphing calculator show you.
Or, you can rearrange the equation to vertex form.
f(x) = 5(x² +4x) -16
= 5(x² +4x +4) -16 -5*4 . . . . complete the square
= 5(x +2)² -36
So, the vertex is (-2, -36).
_____
An easy way to tell is to let a graphing calculator show you.
Or, you can rearrange the equation to vertex form.
f(x) = 5(x² +4x) -16
= 5(x² +4x +4) -16 -5*4 . . . . complete the square
= 5(x +2)² -36
So, the vertex is (-2, -36).
Answer:
θ = 27.47°
Step-by-step explanation:
This problem can be represented as a right-angled triangle, as shown in the diagram below.
To find θ, we apply the tangent part of the trigonometric ratios SOHCAHTOA:
tanθ =
In the diagram, opposite = 1.3 m and adjacent = 2.5 m
Hence:
tanθ =
tanθ = 0.52
θ =
θ = 27.47°
The ramp forms 27.47° with the ground.
