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aleksley [76]
3 years ago
15

I need help can someone tell me if this is right?

Mathematics
1 answer:
Anton [14]3 years ago
5 0

Answer:

nope. sorry man the answer for 864 - 45 = 819

Step-by-step explanation:

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Carmen is writing an article for a magazine. She will be paid a fee and also will be paid for each word that is published. The t
enot [183]

Answer:

The inverse function of f(x)=2.5*x+150 is f⁻¹(x)=\frac{2}{5}x-60

Step-by-step explanation:

An inverse or reciprocal function of f (x) is called another function f ⁻¹(x) that fulfills that:

If f(a)=b then f⁻¹(b)=a

That is, inverse functions are functions that do the "opposite" of each other. For example, if the function f (x) converts a to b, then the inverse must convert b to a.

To construct or calculate the inverse function of any function, you must  follow the steps below:

Since f (x) or y is a function that depends on x, the variable x is solved as a function of the variable y. And since inverse functions swap the input and output values ​​(that is, if f (x) = y then f⁻¹(y) = x), then the variables are swapped and write the inverse as a function.

You know that he function f(x) = 2.5*x + 150 or y=2.5*x +150

Solving for x:

2.5*x +150=y

2.5*x= y-150

x=\frac{y-150}{2.5}

x=\frac{y}{2.5}-\frac{150}{2.5}

x=0.4y-60=\frac{2}{5}y-60

Exchanging the variable, you obtain that <u><em>the inverse function of f(x)=2.5*x+150 is f⁻¹(x)=</em></u>\frac{2}{5}x-60<u><em></em></u>

7 0
3 years ago
of the 50 students in the cafeteria, 7 have red hair. If there are 750 students in the school, predict the number of students wh
Anna007 [38]

Answer:

105 students

Step-by-step explanation:

7/50 = x/750

(7 * 750)/50 = 5250/50

= 105

6 0
3 years ago
I will mark brainliest whoever gives the best answer
Nataliya [291]

Answer:

its a,b,c, or d

Step-by-step explanation:

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3 years ago
What is the value of x?
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The sum of a polygon's angles are 540.

When you add all the angles together here, you get 456.

Now subtract 456 from 540.

540 - 456 = 84

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3 years ago
Mason plans to use a strategy to find the product of 32 * 250. Write a strategy Mason could use to find the product.
Romashka [77]
I think Mason could use a calculator
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3 years ago
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