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1 year ago

Is the equation x9 – 5x3 + 6 = 0 quadratic in form? Explain why or why not.

Mathematics

2 answers:

podryga [215]1 year ago

6 0

Answer:

NOO

Step-by-step explanation:

In order for an equation to be quadratic, the highest degree that is needed is two. The highest exponent provided is 3 therefore no it is not a quadratic function

Readme [11.4K]1 year ago

3 0

No highest degree need to be 2

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Denzel earned money after school delivering newspapers and doing yardwork. He put - of this month's earnings into his savings. H

Inessa05 [86]

<h3><u>Question:</u></h3>

Denzel earned money after school. He put 1/2 of this month's earnings into savings. He took the rest to spend at the amusement park. He spent 1/5 of this amount on popcorn and 3/4 of it on rides. What fraction of his earnings did he take to the park but not spend on rides or popcorn.

<h3><u>Answer:</u></h3>

$\frac{1}{40}$ fraction of money not spend in amusement park

<h3><u>Solution:</u></h3>

Let "x" be the total earnings

He put 1/2 of this month's earnings into savings

$\text{ savings} = \frac{1}{2} \text{ of } x$

$\text{ savings} = \frac{1}{2}x = \frac{x}{2}$

He took the rest to spend at the amusement park

$\text{ Remaining amount }= x - \frac{x}{2}\\\\\text{ Remaining amount } = \frac{2x - x}{2} = \frac{x}{2}$

He spent 1/5 of this amount on popcorn and 3/4 of it on rides

$\text{ Amount spend on popcorn } = \frac{1}{5} \times \frac{x}{2} = \frac{x}{10}$

$\text{ amount spend on rides } = \frac{3}{4} \times \frac{x}{2} = \frac{3x}{8}$

<em><u>So the fraction of money not spend in amusement park is:</u></em>

⇒ Remaining amount - (Amount spend on popcorn + amount spend on rides)

$\rightarrow \frac{x}{2} - (\frac{x}{10} + \frac{3x}{8})\\\\\rightarrow \frac{x}{2} - \frac{38x}{80}\\\\\rightarrow \frac{2x}{80} = \frac{x}{40}$

Thus $\frac{1}{40}$ fraction of money not spend in amusement park

8 0

2 years ago

Write an expression to show the average daily change in temperature of the city 2.34 degrees Celsius -2/7 degrees Celsius -0.45

baherus [9]

2.34+(-2/7)+(-.45)+3/8= Answer than divide by 4 and that will be your average

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3. At a local restaurant, the health inspector visits every 7 days, and the fire inspector visits every 12 days. (a) Make a tabl

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Health inspector - every 7 days.
fire inspector - every 12 days.

a) health inspector fire inspector.
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day 14. day 24.
day 21. day 36.
day 28. day 48.
day 35. day 60.

b) 12 x 7 = 84.

it will be the same on day 84

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2 years ago

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Compare and contrast the solutions of 2x-4>6 and 2x-4=6

elena55 [62]

2x-4=6
2x=6+4=10
x=5
for the inequality, however:
<span>2x-4>6
2x>6+4
2x>10
x>5</span>

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