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3 years ago

The price of parking for 2 hours or less at the airport is increasing

Mathematics

2 answers:

maria [59]3 years ago

8 0

Answer:

50% increase

Step-by-step explanation:

half of 5.00 is 2.50

fredd [130]3 years ago

5 0

Answer:

it increased 50%

Step-by-step explanation:

5 / 2.5 = 2

100 / 2 = 50%

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Given the function f(x) = -5x²-x+ 20, find f(3). O-28 O-13 O62 O64

olganol [36]

Answer: $\Large\boxed{First~Choice.~-28}$

Step-by-step explanation:

Given function expression

f(x) = -5x² - x + 20

Requirement of the question

Find the value of f(3)

Substitute the values into the function

f(x) = -5x² - x + 20

f(3) = -5(3)² - (3) + 20

Simplify the exponents

f(3) = -5(9) - 3 + 20

Simplify by multiplication

f(3) = -45 - 3 + 20

Simplify by subtraction and addition

f(3) = -48 + 20

$\Large\boxed{f(3)=-28}$

Hope this helps!! :)

Please let me know if you have any questions

5 0

1 year ago

Determine the range of the function. (0,2) (2,4) (4,6) (6,8) (8,10)

stealth61 [152]

The answer might be f(x)≥2

7 0

3 years ago

Read 2 more answers

You plan to make cakes. Each cake requires 1 1/4 cup of sugar. You have 7 1/3 cups of sugar. How many cakes can you make

vampirchik [111]

If u got all the cups it will be 3

4 0

3 years ago

Write the linearization of the function at the points indicated. (Enter your answer as an equation. Let x be the independent var

Natalija [7]

Answer:

$\displaystyle y=5+\frac{x}{10}$

$\displaystyle y=10+\frac{(x-75)}{20}$

Step-by-step explanation:

Linearization

It consists of finding an approximately linear function that behaves as close as possible to the original function near a specific point.

Let y=f(x) a real function and (a,f(a)) the point near which we want to find a linear approximation of f. If f'(x) exists in x=a, then the equation for the linearization of f is

$y=f(x)=f(a)+f'(a)(x-a)$

Let's find the linearization for the function

$y=\sqrt{25+x}$

at (0,5) and (75,10)

Computing f'(x)

$\displaystyle f'(x)=\frac{1}{2\sqrt{25+x}}$

At x=0:

$\displaystyle f'(0)=\frac{1}{2\sqrt{25+0}}=\frac{1}{10}$

We find f(0)

$f(0)=\sqrt{25+0}=5$

Thus the linearization is

$\displaystyle y=f(0)+f'(0)(x-0)=5+\frac{1}{10}x$

$\displaystyle y=5+\frac{x}{10}$

Now at x=75:

$\displaystyle f'(75)=\frac{1}{2\sqrt{25+75}}=\frac{1}{20}$

We find f(75)

$f(75)=\sqrt{25+75}=10$

Thus the linearization is

$\displaystyle y=f(75)+f'(75)(x-75)=10+\frac{1}{20}(x-75)$

$\displaystyle y=10+\frac{(x-75)}{20}$

5 0

3 years ago

Mr. Kiernan decides to purchase a new West Virginia flag for his room that is double

Alla [95]

Answer:

$50.16

Step-by-step explanation:

There is a sale tax on the item to be purchased, and the tax is 4.5% of the amount of the flag i.e 4.5% × $48.00 = $2.16

After the rate of the sale tax has been changed to dollars, we then add the amount of the sales to the amount of the flag to give the total amount to be paid i.e $2.16 + $48.00 = $50.16

Thank You

4 0

3 years ago

Read 2 more answers