MATHEMATICS HIGH SCHOOL

Given f(x)=10x over 2+7, find f^-1(x)I have provided a picture of the equation for it to be easier to read

Answers

Answer 1

Answer:

Answer:

$f(x)^(-1)$ = 1/(5x+7) [ 1 over (5x + 7)] with x≠ -1.4

Step-by-step explanation:

Given the function f(x), if f(x) ≠ 0, we would have the formula as following:

+) $f(x)^(-1)$ = 1/f(x)

We have the given equation:

f(x) = (10x/2) + 7 = 5x + 7

f(x) ≠ 0 when and only when (5x + 7) ≠ 0

(5x + 7) ≠ 0

⇔ 5x ≠ 0 - 7

⇔ 5x ≠ -7

⇔ x ≠ -7 ÷ 5

⇔ x ≠ -1.4

So with x≠ -1.4, f(x) ≠ 0, we have:

$f(x)^(-1)$ = 1/f(x) = 1/ (5x + 7)

Conclusion: $f(x)^(-1)$ = 1/(5x+7) [ 1 over (5x + 7)] with x≠ -1.4

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One fourth of a number is 1 more than one fifth of the same number

Answers

The most important part of this question is understanding the words of the problem. The trick lies in the words of the problem. Once the web of words is simplified, the problem becomes very easy. The main thing is converting the words into numbers.
Let us assume the unknown number = x
Then from the question we get
(x/4) = (x/5) + 1
(x/4) - (x/5) = 1
(5x - 4x)/20 = 1
x/20 = 1
x = 20
So the unknown number is 20

Point P has coordinates (2,3). Point Q is symmetric to point P with respect to the line x = 4. What are the coordinates of point Q. Im wondering how you solve this. I think it's (3,6) A. (2,5)
B. ( 5,3)
C. (3,6)
D. (6,3

Answers

You are given the first point (2, 3) and a line x = 4. If you go ahead and graph these, it makes it a little more clear when they say that point p is symmetric with point Q with respect to the line x = 4.

Line x = 4 is the line of symmetry, so point Q is reflected across it. Point p has an x value of 2 (2 away from the line of symmetry, so point Q's x value has to be 2 away on the other side... 6. The y value is unchanged so your point is

D. (6, 3)

Yesterday my family caught a largo fish. We ate 2/6 of the fish. Today we eat 2/4 of the fish. Told my motores that we ate more fish yesterday than today because 6 is greater than 4. So 2/6 is greater than 2/4. My mother told me i madre a mistake .

Answers

Answer:

Step-by-step explanation:

Fraction of fish ate on first day = 2/6

fraction of fish ate on second day = 2/4

In case of comparison of rational numbers if the numerators of two rational numbers is same and the denominators are different, then the number having larger denominator is less than the number having smaller denominator.

So, the number 2/6 < 2/4

So, the fraction of fish ate on the first day is less than the amount of fish ate on te second day.

I really need help on geometry

Answers

For example, exc. 12;

6/9 = (x + 1)/12 => 2/3 = (x + 1)/12 => 24 = 3(x+1) => x +1 = 8 => x =7.

PLEASEEE HELP ME W DIS!!! I RLLY NEED TO FINISH!!

Answers

Answer: D.

$2^((x+2))$

Step-by-step explanation:

Because since g=2

Choice D has the only parentheses, so (x) is (x+2)

Answer:

A or c should be you'r answer but i believe it is A. Let me know if this helped you

Step-by-step explanation:

The ordered pairs (1, 1), (2, 4), (3, 9), (4, 16), and (5, 25) represent a function. What is a rule that represents this function? A. y = x2 B. y = 2x C. y = x + 2 D. y = 2x

Answers

y=x^2 is the answer, so I think it might be A, you just forgot the carrot.
Hope this helps!

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