Follow the given formula. The initial amount of money invested, P, becomes 2P (same thing as "doubles) after t years. Since compounding is quarterly, n=4. The annual interest rate is 12%. That is, r=0.12.
Then we have 2P = P (1 + 0.12/4)^(4t) and need only solve for time, t.
Simplifying the above equation: 2 = (1.03)^(4t)
We must isolate 4t, and then isolate t. To do this, take the common log of both sides of the above equation. We get:
log 2 = (4t) log 1.03. This gives us 4t = [log 2] / [log 1.03], or
4t = 23.4498
Dividing both sides by 4, we get t = 5.86 (years).
Answer:
The volume of the triangular prism in the diagram is:
- <em>105.5</em>

The surface area of the triangular prism in the diagram is:
- <em>10.75</em>

Step-by-step explanation:
First, we're gonna calculate the surface area to obtain the volume, then, to calculate the area of a triangle (because the surface o a triangular prism is just a triangle), you can use the formula:
- Area of a triangle = (base * height) / 2
We have this data from the diagram, where the base of the triangles is 5 inches and, the height is 4.3 inches, replacing this in the formula:
- Area of a triangle = ( 5 in * 4.3 in) / 2
- Area of a triangle = ( 21.5
) / 2 - Area of a triangle = <em>10.75</em>

Now, we can calculate the volume of the triangular prism with the next formula:
- Volume of a triangular prism = surface area * depth
In the diagram, we can see the depth is 14 inches, then:
- Volume of a triangular prism = 10.75
* 14 in - Volume of a triangular prism = <em>105.5</em>

How you can see with the calculations perfomed, <em>the surface area is 10.75 </em>
<em> and the volume of that triangular prism is 105.5 </em>
.
Answer:
8
Step-by-step explanation:
3x = 24
Divide both sides by 3
3x/3 = 24/3
x = 8
Answer:
The explanation is given below.
Step-by-step explanation:
Given for a triangle to be obtuse only one of the angles must be shown to be obtuse but for a triangle to be acute all three angles must be shown to be acute.
According to Pythagoras theorem for a right angled triangle which has one angle of 90° rest of two are acute.

Hence, by Pythagorean inequality

which gives the triangle is acute.
Hence, one acute angle with the Pythagorean inequalities theorem shows that the triangle is acute.