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tatyana61 [14]
2 years ago
12

Hello can someone please help me in these question please?

Mathematics
1 answer:
Andrej [43]2 years ago
3 0

Answer:

<u>Answer</u><u>:</u><u> </u><u>B</u>

Step-by-step explanation:

f(x) =  \frac{12}{x}  - 18 \\

let its inverse be m :

m =  \frac{12}{x}  - 18 \\  \\ m + 18=  \frac{12}{x}  \\  \\ x =  \frac{12}{m + 18}  \\  \\ { \boxed{ \boxed{f {}^{ - 1}(x) =  \frac{12}{x + 18}  }}}

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Find the first six terms of the sequence.
Yuliya22 [10]

Answer:

6, 12, 24, 48, 96, 192

Step-by-step explanation:

The first term a1 = 6 and the common ratio is 2.

So it is 6,  6*2,  6*2^2 ....

8 0
3 years ago
O.9c + 1.89r = 17.01 c=18.9 - 2.1r equation answer
ikadub [295]

Answer:

c=18.90-2.1r

Step-by-step explanation:

<u><em>The complete question is</em></u>

A chef bought $17.01 worth of ribs and chicken. Ribs cost 1.89 per pound and chicken costs 0.90 per  pound. The equation 0.90 +1.89r = 17.01 represents the relationship between the quantities in this  situation.

Show that each of the following equations is equivalent to 0.9c + 1.89r = 17.01.

Then, explain when it might be helpful to write the equation in these forms.

a. c=18.9-2.1r. b. r= -10÷2c+9​

we have that

The linear equation in standard form is

0.90c+1.89r=17.01

where

c is the pounds of chicken

r is the pounds of ribs

step 1

Solve the equation for c

That means ----> isolate the variable c

Subtract 1.89r both sides

0.90c=17.01-1.89r

Divide by 0.90 both sides

c=(17.01-1.89r)/0.90

Simplify

c=18.90-2.1r

step 2

Solve the equation for r

That means ----> isolate the variable r

Subtract 0.90c both sides

1.89r=17.01-0.90c

Divide by 1.89 both sides

r=(17.01-0.90c)/1.89

Simplify

r=9-0.48c

therefore

The equation c=18.90-2.1r is equivalent

The equation is helpful, because if I want to know the number of pounds of chicken, I just need to substitute the number of pounds of ribs in the equation to get the result.

4 0
3 years ago
Please I would be grateful if someone answer this question
Alina [70]
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2 years ago
What is the result when we simplify the expression ( 1 + 1/ x ) ( 1 − 2/ x + 1 ) ( 1 + 2/ x − 1 )
BaLLatris [955]

Answer:

\frac{4(x + 1)(x - 1)}{ {x}^{3} }

Step-by-step explanation:

I have a app called photomath, I really hope this works.

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2 years ago
What's the slope of -4,6 and 3,-8
notsponge [240]

Answer:

The slope is -2

Step-by-step explanation:

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(-8 - 6) / (3 + 4)

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4 0
3 years ago
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