2x(2x^2 -x -37) / (x +4)(x -4)(x^2 +2x -6)
Answer:
12
Step-by-step explanation:
a2 +b2 = c2
a2 + 9 2 = 15 2
a2 + 81 = 225
- 81 - 81
a2 = 144
a = 12
Answer: if the circumference is 76 the area is 38
Step-by-step explanation:
Answer:
Step-by-step explanation:
The given triangle ABC is an obtuse triangle because one of its angles it greater than 90 degrees. The sum of the angles in a triangle is 180 degrees. This means that
Angle A + Angle B + Angle C = 180 degrees
Looking at the triangle,
Angle A = 30 degrees
Angle C = 20 degrees
Therefore,
30 + angle B + 20 = 180
Angle B + 50 = 180
Subtracting 50 from the left hand side and the right hand side of the equation, it becomes
Angle B + 50 - 50 = 180 - 50
Angle B = 130 degrees
Here we want to analyze the given exponential equation. The answers are:
- initial value = 7500
- Rate of growth = 1.03
- Percent of change = 3%
<h3>
General exponential equation:</h3>
The general exponential equation is just:
y = A*(r)^x
Where:
- A is the initial value
- r is the rate of growth or decay
- (r - 1)*100% gives the percent of change.
Now that we know the general form, we can look at our equation:
y = 7500*(1 + 0.03)^x
Using the above information, we can see that:
- initial value = 7500
- Rate of growth = 1 + 0.03 = 1.03
- Percent of change = (1.03 - 1)*100% = 3%
If you want to learn more about exponential equations, you can read:
brainly.com/question/11832081