Answer:
- 1296 pounds per square inch
Step-by-step explanation:
<u>Direct variation equation:</u>
<u>In this case it is:</u>
- y = kx², where y- strength, x- depth of the beam, k- coefficient
<u>Substitute the given values and solve for k:</u>
- 3600 = k*10²
- 3600 = 100k
- k = 3600/100
- k = 36
<u>The equation becomes:</u>
<u>Now, find the value of y, when x is 6:</u>
<u><em>Note, I took the depth as 6 inches but the question is a bit confusing by saying "four six inches". If it is 4 inches then your answer will be:</em></u>
I think the answer is y = 8.1x, but you might want to wait for someone else to answer your question.
Answer: Y intercept: 5 The slope of the line is: 2
Step-by-step explanation:
Y=mx+b is y-intercept form
So you have to solve this equation for y.
This looks like:
-2x+y=5
+2x +2x
y=2x+5
Answer:
Step-by-step explanation:
Given the following Quadratic equation:
You can change its formed by Completing the square.
In order to do Complete the square, you can follow these steps:
1. You can identify that:
2. Then, you can find . This is:
3. Now you must add to both sides of the Quadratic equation in order to keep the balance. Then:
4. Finally, simplifying by actoring and adding the like terms, you get:
The formula for finding area of a triangle is:
The base is 8 feet. The area is 48 ft². Put that into the formula:
Remember that you have to multiply the base × height by , which is the same as dividing by 2. To find the height, you need to multiply the area by 2, instead of dividing.
That means the base × height is equal to 96. You already know the height. To find the base, divide the (base × height) by the height. The height is 8.
That means the base of the triangle is 12 ft
<h3>CHECK</h3>
Base = 12
Height = 8
Put that into the formula:
✔
BASE = 12 ft