Is the function linear or nonlinear y=2x^2-4

Answers

Answer 1

Answer: ANSWER

The function is non linear.

EXPLANATION

A linear function is of the form

$y = mx + c$

or

$ax + by + c = 0$

The highest degree of the variables in each term in the simplest form is 1.

Any degree higher or less than 1 will make the function nonlinear.

The function given to us is,

$y = 2{x}^(2) - 4$

The highest degree is 2. This is a quadratic curve.

The graph of all linear functions are straight lines.

Answer 2

Answer: The function is nonlinear.

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You spend $40 on a meal including tax and want to leave a tip that is 20% of the $40. What is the total cost, with the tip?

Answers

Your total would be $48.00

Idk I'm a little kid but I know almost t about money and the tax is $8.05 so you would have to spend $48.05

What is .016 as a percent

Answers

When you convert .016 to a percent you get 1.6%

What rational number represents a drop of 4 1/4 in.?

Answers

4 1/4 is a rational number

Final answer:

The rational number that represents a drop of 4 1/4 inches is either 4 1/4 as a mixed number or 4.25 as a decimal.

Explanation:

The question is asking for the rational number that represents a drop of 4 1/4 inches. A rational number is a number that can be expressed as a quotient or fraction of integers. In this case, 4 1/4 is already a rational number. However, if you want to express it as a decimal rather than a mixed number, you can convert it. Recall that 1/4 is equivalent to 0.25. Therefore, 4 1/4 can also be expressed as 4.25.

Learn more about Rational Numbers here:

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How many 4/5 cup servings are in 4/9 of a cup of yogurt

Answers

Answer:

$(5)/(9)$

Step-by-step explanation:

Unit rate is defined as the rate are expressed as a quantity as 1 such as 3 meter per second or 4 miles per hour.

As per the statement:

4/5 cup servings are in 4/9 of a cup of yogurt

then by definition of unit rate:

$\text{Unit rate per cup} = ((4)/(9) )/((4)/(5) ) = (4)/(9) * (5)/(4)$

Simplify:

$\text{Unit rate per cup} = (5)/(9) \text{Yogurt}$

therefore, 4/5 cup servings are in 4/9 of a cup of yogurt is, $(5)/(9)$ cup of yogurt

For this question, you need to understand how to divide fractions.First we line up our fractions appropriately:
4/9 ÷ 4/5 = ? (You want to divide 4/9 by 4/5)
4/9 × 5/4 = ? (Now we use the reciprocal of 4/5 and multiply instead of divide)
4 x 5 = 20 and 9 x 4 = 36. (Cross multiply.)
20/36 = 5/9. (Simplify to lowest terms.)
So, 4/9 divided by 4/5 is 5/9!But 5/9 is more than 4/9, so the answer is 0 :PCorrect me if I'm wrong.

a bowl contains eight pennies, seven nickles and ten dimes. Elyse removes one coin at random from the bowl and does not replace it. she then removes a second coin at random. what is the probability that both will be nickels?

Answers

25 coins in total.

7/25 x 6/24 = 7/25 x 1/4 = 7/100 is the probability

Divide 25 by 8 write the quotient with a fraction

Answers

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