Answer:
Each side of the original square is One-fourth the length of each side of the scale model
Step-by-step explanation:
Given that the square is a scaled copy of a smaller orginal square that was scaled up using a scale factor of 4, it means that the side length of the original square was multiplied by 4 to get the new side lenght of the scaled copy given in the question, which is 8ft.
Let original lenght be x.
x * 4 = 8 ft
4x = 8
x = 8/4 = 2.
Side lenght of the original square = 2 ft
Side of the original square to side of scale model = 2 ft to 8 ft = 2/8 = ¼.
Therefore, the statement that is true is: "Each side of the original square is One-fourth the length of each side of the scale model".
x= 8 , -3
<h3>What is Quadratic Equation?</h3>
Given:
x² - 5x -24 =0
x² - 8x + 3x -24=0
x(x-8) + 3(x- 8)=0
(x-8)(x+3)=0
x= 8 , -3
Learn more about quadratic equation here:
brainly.com/question/1503435
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Here are the rates of the trains:
(n represents train A's speed)
A: n
B: n + 10
We know it is 5 hours, and total distance, so:
5(n) + 5(n + 10) = 1250
5n + 5n + 50 = 1250
10n = 1200
Divide:
n = 120
One train goes 120, the other goes 130
Answer: 1. -24
2. -10
3. 8
4. 8
5. -10
6. -75
Step-by-step explanation:
Answer: c. P=43
d. P=3x^2+5x+8
Step-by-step explanation:
c. P=12x+19 ==> See how I got this formula in my previous answer to parts a and b
P=12(2)+19
P=24+19
P=43
d. P=a+b+c+d
P=x^2 +4x+8+2x^2 +x
P=x^2 +2x^2 +4x+x+8
P=3x^2+5x+8