6u + 3u = 18
9u = 18
u = 18/9
u = 2
Answer:
Part 1) The actual length of the banner is 
Part 2) The area of the banner is 
Step-by-step explanation:
we know that
The scale of the drawing is 
That means ----> 1 cm on the drawing represent 30 cm in the actual
Using proportion
<em>Find out the actual dimensions of the banner</em>
Let
L the actual length of the banner
W the actual width of the banner
<u>For a length of 4 cm in the drawing</u>

Convert the actual length to meters

<u>For a width of 9 cm in the drawing</u>

Convert the actual width to meters

<em>Find the area of the banner</em>

The value of x is -2 when f(x) = 0
Step-by-step explanation:
In any function f(x) = y
- x is the input
- y is the output
- If f(x) = 2 x + 3, then f(a) = b means when you substitute x by a the value of y = b
∵ f(x) = x³ + 8
To find value of x when f(x) = 0, substitute f(x) in the equation by
0 and solve the equation to find the value of x
∵ f(x) = 0
∴ 0 = x³ + 8
- Subtract 8 from both sides
∴ -8 = x³
- Take ∛ for both sides
∵ ![\sqrt[3]{x}=x](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%7D%3Dx)
∵ ![\sqrt[3]{-8}=-2](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B-8%7D%3D-2)
∴ x = -2
The value of x is -2 when f(x) = 0
Learn more:
You can learn more about the functions in brainly.com/question/10879401
#LearnwithBrainly
Answer:
I think it's called a term.
Hope this helps :)
Answer:
rational
Step-by-step explanation:
the equation above would be -10 making it an integer
integers are rational