let f(x)=2x-1 and g(x)=1/x. Find the value of f(g(7))

Answers

Answer 1

Answer:

-5/7

Step-by-step explanation:

We need to find g(7) first

All we have to is plug 7 in the place of x

g(7) = 1/7

Now we have f(1/7) = 2x - 1

f(1/7) = 2(1/7) - 1

f(1/7) = 2/7 - 1

Don't forget about common denominators

2/7 - 7/7 = -5/7


Related Questions

What is the perimeter (in feet and inches) of a rectangle that has a length of 12'7" and a height of 11'3"?

Answers

Answer:

p=2l+2w

=2*12'7"+2*11'3"

Build a function whose domain is all real numbers other than -4, and whose range is all real numbers other than 5.

Answers

Answer:

An example is the rational function [tex]y=\frac{5x}{x+4}[/tex].

Step-by-step explanation:

The graph of the rational function [tex]y=\frac{5x}{x+4}[/tex] has a vertical asymptote at x = -4 where the denominator is equal to zero.  The function is undefined there, so the domain is all real numbers except -4.

The graph has a horizontal asymptote  y = 5  so the domain is all real numbers except 5.

See the attached image for the graph of the function (purple) and it's vertical asymptote (black).

Given the functions f(x)=3x−2and h(x)=x−10. Find (g⋅h)(x)and simplify completely.

Answers

Answer:

(g.h) (x) = 3x² -32x+20

Step-by-step explanation:

g(x)=3x−2

h(x)=x−10

(g . h)(x) = (3x-2) (x-10)

= 3x²-30x-2x+20

= 3x² -32x+20

= 3x² - 32x + 20

Find the value of x.

Answers

X+58+43 =90

X= - 11

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Answer: -11

Step-by-step explanation: one of the angle is 90 another one is 43, and all 3 will be 180; so 90+43+?=180,

133+x+58=180,

191+x=180,

-191 to both side,

x=-11

NJ Transit raises its train fees. Snooki wants to visit her parents which used to cost $28 but they increased the fares by 15%. What will the ticket cost now?

Answers

Answer: 32.20$ Train Fee

Step-by-step explanation:

15% of 28 is 4.20... 4.20 will be added to the current Train Fee

   28.00$

 +   4.20$

    32.20$

Final result: The Train Fee will be 32.20$

help me again Scooby do
I got more Scooby snac just for you, Imao​

Answers

MATHEMATICS // ANSWER

The correct answer is letter B. V = 141.3cm³

Here's the Solution:

V = π r²hV = (3.14) (3cm)² (5cm)V = (3.14) (9cm²) (5cm)V = (3.24) (45cm³)V = 141.3cm³

HOPE THIS HELPS. GOODLUCK:)

Q16. If the perimeter of a rectangular house is 25 1/3 yards, and the length is 22 feet. What is the
width?
16 feet
O 35 feet
O 37 feet
0 40 feet
42 feet

Answers

Answer:

OPTION A :16 FEET

PERIMETER =26 1/3=76/3yard=76/3×3=76 feet

LENGTH=22feet

Width=76/2-22

WIDTH=38-22=16 FEET

Apply the distributive property to factor out the greatest common factor.
40f + 30

Answers

It is 30 because everyone is

What is the solution to
:-7?
A. 81
B. 63
C. 63
D. -81

Please help me I’m dum

Answers

Answer:

-63

Step-by-step explanation:

63/9 = 7, so in order to make the answer -7, 63 must be negative.

Type your answers into the boxes.
The ratio of men to women in a gym is 7 : 5
What fraction of the gym members are women?

Answers

Answer:

[tex] \frac{5}{12} [/tex]

Step-by-step explanation:

[tex] \frac{5}{7 + 5} [/tex]

I'm not sure about the answer. Sorry if it's wrong.

Cuvantul vesel e un a) adjectiv b) substantiv ??

Answers

Cuvantul vesel e un

a) adjectiv

b) substantiv ??

Answer:-[tex] \bold \red{adjectiv}[/tex]

[tex]\huge\mathbb\color{black}{ANSWER}[/tex]

A.) Adjective

━═━═━═━═━═━═━═━━═━═━━═━═━━═━═━═━

Find the area of the shaded region.

Answers

I’ve attached my work…
Hope it helps!

Sarah is going to pay for an item using gift cards. The clerk tells her tht she will need 2 gift cards and as additional $3 to pay for the item.

Write an algebraic equation to find the cost for any amount of gift cards

Answers

Answer:

Step-by-step explanation:

t=2g+3.

A=1/2bh solve for b then h

Answers

Answer:

There is no right or wrong answer

Step-by-step explanation:

You did not give enough information, this formula usually comes with a triangle that you want to solve, therefore no one can answer this correctly since there is nothing to solve.

The question is asking your to restate b in terms of A and h.

A = 1/2 bh

divide by 1/2
2A = bh

divide by h
2A/h = b

The cube of an integer is called a __________ ?

Answers

Answer:

a perfect cube

Step-by-step explanation:

Answer:

It is called a perfect cube .

Step-by-step explanation:

Let A={5,8}, B={p,q}, C={r,v} How many elements are in A×B?

Answers

There are 4 elements in the set A* B

How to determine the number of elements in A * B?

The sets are given as:

A={5,8}

B={p,q}

C={r,v}

The expression A * B implies that:

A * B = n(A) * n(B)

Where n( ) implies that the number of elements in......

So, we have

A * B = 2 * 2

This is so because sets A and B have 2 elements each

Evaluate the product

A * B = 4

Hence, there are 4 elements in the set A* B

Read more about sets at

https://brainly.com/question/2166579

#SPJ1

find the domain of f(x) = 3x + 5

Answers

Answer:

All real numbers

Step-by-step explanation:

All real numbers: f(x) is defined for all values of x. There are no discontinuities or places where f(x) is undefined. f(x) is just a straight line going to infinity.

Answer:

(-infinity, infinity), or all real numbers

Step-by-step explanation:

If you were to look at it graphically, it would be a linear function with a slope of 3 and shifted up 5 units. (i attached a screenshot of what the graph would look like at the bottom :)

since there are no domain restrictions, you're not really going to have any issues or gaps which is when you might need to do something like

(-infinity,4] u(5,inifinity) --> since this isn't the case though, you're totally free to just write all real numbers, because all real numbers in the x-plane (as that is what domain looks at) are included.

When all else fails, (at least for homework), desmos is great for graphing and looking at everything visually

Hope that helps! lmk if you have any questions :)

h(1) = 9
h(2) = 3
h(n)=h (n−2) ⋅ h(n−1)
​h(3)

Answers

Answer:

27

Step-by-step explanation:

h(n)=h (n−2) ⋅ h(n−1)

h(3)=h (3−2) ⋅ h(3−1)

h(3)=h (1) ⋅ h(2)

h(3)=9 ⋅ 3

h(3)=27

Answer:

27

Step-by-step explanation:

khan

Carlo got a pet snake as a birthday present. On his birthday, the baby snake was just 26 cm long. He has been measuring its length weekly and has noticed that it has been growing approximately 2 cm each week.

Write an equation to represent the length of the snake in weeks since Carlo's birthday use L for length and w for weeks.​

Answers

The equation to represent the length of the snake in weeks:

[tex]L=2w+26[/tex]

Given:

A snake of lenght of 26 cemtimeters grows approximately 2 centimeter long each week.

To find:

The equation to represent the length of the snake in weeks

Solution:

Let the length of the snake in' w' weeks be 'L'.

The initial length of the snake on Carlo's birthday = 26 cm

At starting very first week the length of the snake was 26 cm. And after a week the lenght of the snake becomes 28 cm and then aftertwo weeks the length becomes 30 cm and so on.

Increase in length of the snake each week = 2 cm

And increase in length of the snake in 'w' weeks = (2×w) cm

And the length of the snake in terms weeks (w) will be given by equation:

[tex]L=2\times w+ 26\\L=2w+26[/tex]

The equation to represent the length of the snake in weeks:

[tex]L=2w+26[/tex]

Learn more about equation representation here:

https://brainly.com/question/11408596

42.3952 to the nearest thousandths

Answers

Answer:

42.395

Step-by-step explanation:

The thousandths place is the 3 number to the ride of the decimal. We will need to look at the 4th decimal place to round. Remember these rules when rounding:

5 and above round up4 and below round down

Now that we know what to do, we can round accordingly.

42.3952 → 42.395

Best of Luck!

help
help
help
help
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Answers

Answer:

[tex]x=-3[/tex]

Step-by-step explanation:

[tex]x+5-5=2-5[/tex]

[tex]x=-3[/tex]

III. Direction: Solve and check. show your complete Solution.

1)

x+5 = 2

x = 2 - 5

x = -3

checking

x+5 = 2

-3 + 5 = 2

2 = 2

I hope this helps. Goodluck :)

Can anyone help? Most brainiest for the correct answer!!

Answers

Answer:  25

Explanation:

The "large cars" pie slice takes up 7% of a full circle. This means that the degree measure of this slice takes up 7% of a full 360 revolution.

7% of 360 = 0.07*360 = 25.2 degrees

This then rounds to 25 degrees

25

If you like, I can put on the solution.

write the equation of the line in fully simplified slope-intercept form.​

Answers

Answer:

slope intercept form: y=mx+c

Step-by-step explanation:

By using two points form:

y-0/3-0=x-1/2 /0-3

y/3=x-1/2 /3

y=x-1/2

Note:if you need to know any question please let me know.

2. 3.6 x 5.5? Explain your answer. (Make sure you include how you knew where to
place the decimal point.)

Answers

Answer:

19.80 or 19.8

Step-by-step explanation:

When multiplying decimal numbers we forget the decimal points and multiply normally; like, 3.6 x 5.5 = 1980, then we count how many decimal numbers(numbers after the decimal point) there are in the factors(In 3.6 we have the decimal number 6. And in 5.5 we have the decimal number 5 ). So here we have 2 decimal numbers resulting in our answer being, 19.80 or 19.8 since the 0 is unnecessary.

Jace recorded the grade-level and instrument of everyone in the middle school School of Rock below.
Seventh Grade Students
Instrument # of Students
Guitar 11
Bass 14
Drums 11
Keyboard 14
Eighth Grade Students
Instrument # of Students
Guitar 13
Bass 13
Drums 8
Keyboard 3

Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than bass as a percent to the nearest whole number.

Answers

The probability that a seventh grader chosen at random will play an instrument other than bass is 72%.

what is 3 ÷ 2/5??? pls help

Answers

Answer:

7.5

Step-by-step explanation:

Answer:

7.5

Step-by-step explanation:

3/2/5=3/2×5. a/b/c=a/b×c

1.5×5=7.5

(15-12)2-2+5=

20+23×3-1=

[4(3+2)-4]+42

Answers

Answer:

Here is your answer . Hope this is helpful to you.

please help me to do this question ​

Answers

Answer:

firdt method is

Length x breath

is equal to ½

a basket contains 3 green 4 yellow 5 blue and 6 red tickets one of which is randomly selected probability of drawing a green or a red ticket

Answers

Answer: 21

Step-by-step explanation:

At Jeremy's school, the final grade for his Human Biology course is weighted as follows:

Tests: 50%
Quizzes: 35%
Homework: 15%
Jeremy has an average of 94% on his tests, 78% on his quizzes, and 62% on his homework.

What is Jeremy's weighted average?


83.6%


78%


74.8%


75.6%

Answers

Answer:

78%

Step-by-step explanation:

.94 + .78 + .62 = 2.34

2.34/3 = .78

.78 = 78%

Jeremy's weighted average is 83.6%

The grades and the weights of the grades can be represented using the following table

Subject     Final Grade   Average

Test              50%              94%

Quiz             35%               78%

Homework   15%               62%

The weighted average (w) is the sum of the product of the final grades and the average.

So, we have:

[tex]w = \sum Final\ Grade \times Avearge[/tex]

This gives

[tex]w = 50\% \times 94\% + 35\% \times 78\% + 15\% \times 62\%[/tex]

Evaluate the products

[tex]w = 47\% + 27.3\% + 9.3\%[/tex]

Evaluate the sums

[tex]w = 83.6\%[/tex]

Hence, the weighted average is 83.6%

Read more about weighted average at:

https://brainly.com/question/11408596

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