The answer is 56,700
If you take 7500 and divide it by 100 than multiply by 7 you get 525 and multiply 525 by 12 you get 6,300 than 6,300 multiplied by those 9 years you get 56,700
The answer is b.
This is because the line is sloping downwards, and so y = -1
Answer:
The perimeter of ΔABC is 43 units
Step-by-step explanation:
An illustrative diagram is shown in the attachment below.
To find the perimeter of the triangle, we will first determine the length of the unknown sides.
First, we can determine /BC/ using the Sine rule
From Sine rule
∴
In the diagram, and
m∠A=60° and m∠C=45°
∴
To find /AC/, will first determine m∠B
m∠A + m∠B + m∠C = 180° (Sum of angles in a triangle)
60° +m∠B + 45° = 180°
m∠B + 105° = 180°
m∠B = 180° - 105°
m∠B = 75°
Also, using the sine rule
From the diagram,
Now,
The perimeter of ΔABC = /AB/ + /BC/ + /AC/
=
= 43.09 units
≅ 43 units
Hence, the perimeter of ΔABC is 43 units.
Given the equation for the circumference of a circle
C = 2 * pi * r
to find the radius you need to isolate it
divide both sides by (2*pi)
C/(2*pi) = r
circumference divided by 2 times pi equals the radius
Hope this helps :)