Answer:

Step-by-step explanation:
We want to prove algebraically that:

is a parabola.
We use the relations

and

Before we substitute, let us rewrite the equation to get:

Or

Expand :

We now substitute to get:

This means that:

Square:

Expand:




This is a parabola (0,2.5) and turns upside down.
Answer:
90 - 9 = 81°
Step-by-step explanation:
Answer:
Step-by-step explanation:
By using the process of elimination you can immediately disclose C and D as being incorrect.
35+85=120
180-85= 95
95=35+x
95-35=60
60-10=50
I think that is the right answer, but I am may be wrong. I hope it helps! : )
Given that the chip has a dimension of 8 mm by 8 mm which can be written as 0.8 cm by 0.8 cm, is drawn to scale and the dimensions of the plot is 4 cm by 4 cm, the scale of the drawing will be:
0.8 cm is represented by 4 cm
thus;
4 cm rep 0.8 cm
1 cm rep 0.2 cm
The answer is:
1 cm rep 0.2 cm