Are u like in 9th grade omg
The described picture frame can be visualized into two separate parts. The first area is equal to the area using the outermost dimensions for the length and width.
Area = Length x Height
Area = (20 in) x (14 in)
Area = 280 in²
We are given that the area is only equal to 192 in². We subtract this value from the computed area.
Difference = 280 in² - 192 in²
difference = 88 in²
This area is equal to the area of the hollow space inside the frame. That is equal to,
height = 20 in - 2x
length = 14 in - 2x
The area,
88 = (20 - 2x)(14 - 2x)
Simplify the right hand side of the equation.
88 = 280 - 68x + 4x²
Divide the equation by 4,
22 = 70 - 17x + x²
Transposing,
x² - 17x - 48 = 0
The factors of the equation is 58.2.
Thus, the thickenss is equal to 58.2 in
The things that are to be done before creating a research question for a presentation are: option C, D, and E.
<h3>What is a
research question?</h3>
A research question can be defined as an issue, event or subject of inquiry that a researcher is keenly and deeply interested to provide a response or an answer to, when conducting a research.
Basically, the things that are to be done before creating a research question for a presentation are:
- Review the research topic and what the prompt asks for.
- Think of an argument or an opinion if necessary.
- Consider what I know and what I need to know.
Learn more about research question here: brainly.com/question/10129052
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It has to be (8, 9) because that would put the 4th corner above (8, 7) and right of (2, 9).
Answer:
0
Step-by-step explanation:
