Can anyone help me on this?

Can Anyone Help Me On This?

Answers

Answer 1

Answer:

A

Step-by-step explanation:

We know that this is the same as substituting a for x and multiplying the entire expression by -1.

[tex]f(a) = \frac{2a}{a - 1} [/tex]

[tex] - f(a) = \frac{ - 2a}{a + 1} [/tex]


Related Questions

If g(x) = 3x − 4, what is the value of g−1(g(−2))?
x+4/3
2/3
−10
−2

Answers

Answer:

C, 2/3, hope this helps

Step-by-step explanation:

sorry if it does not!

Find the selling price of each item.
45) Cost of a car: $43,000.00
Markup: 70%

Answers

Revenue 73,100
Profit 30,100

Antonio has 2 2/3 of a piece of wood that he wants to cut into 4 pieces. How long should he cut each piece?
A 8 2/3
B 10 2/3
C 8/3
D 2/3

Answers

Answer:

D 2/3

explanation:

[tex]\bold{total \ length \ \div \ number \ of \ pieces }[/tex]

solve

[tex]\sf 2\dfrac{2}{3} \div 4[/tex]

reciprocal to change signs

[tex]\sf \dfrac{8}{3} \ * \ \dfrac{1}{4}[/tex]

simplify

[tex]\sf \dfrac{2}{3}[/tex]

Solution:

To find the measure of each piece, divide the total piece of wood (2 2/3) by the number of pieces Antonio wants to cut (4).

From the following, we obtained:

[tex]\rightarrow 2 \dfrac{2}{3} \div 4[/tex]

Convert 2 2/3 into an improper fraction:

[tex]\rightarrow 2 \dfrac{2}{3} \div 4[/tex]

[tex]\rightarrow \dfrac{2 \times 3 + 2}{3} \div 4\\[/tex]

[tex]\rightarrow \dfrac{6 + 2}{3} \div 4\\[/tex]

[tex]\rightarrow \dfrac{8}{3} \div 4\\[/tex]

Simplifying the expression:

[tex]\rightarrow \dfrac{8}{3} \div 4\\[/tex]

[tex]\rightarrow \dfrac{8}{3} \times \dfrac{1}{4} \\[/tex]

[tex]\rightarrow \dfrac{8}{3 \times 4}[/tex]

[tex]\rightarrow \dfrac{8}{12} = \boxed{\dfrac{2}{3}}[/tex]

Thus, Antonio should cut 2/3 of wood for each piece.

What is the radical of 23.5

Answers

Answer:

The result can be shown in multiple forms.

Exact Form:

23.5

Decimal Form:

4.84767985

Step-by-step explanation:

Decimal : 4.84767985.....

Which expression shows the prime factors of 220?
O A. 22 x 10
O B. 2x2x5x11
O c. 2x2 x 5 x 11 x 22
O D. 2 x 5 11

Answers

B. 2×2×5×11=220

if you divid 220 by 2=110

110÷2=55, 55÷5=11, 11÷11=1

2, 2,5, 11

After a meal, your total bill (before tax) comes to $47.50. If the tax on
your meal is 6%, what is the cost of tax you will have to pay?

Answers

6% of 47.50 = 2.85

The tax money is $2.85

Find the sum of the whole numbers from 1
to 820

Answers

Answer:

There is no way to solve this..

Step-by-step explanation:

The graph shows two accounts with the same principal and annual interest rate. Use the graph to estimate the answer to each question.

About how much more compound interest than simple interest is earned after 35 years? Remember to show your work.
About how much more compound interest than simple interest is earned after 45 years? Remember to show your work.

Answers

Answer:

The amount of compound interest than simple interest that is earned after 45 years:

$300 is invested.

After 45 years, it will grow to be about $700.

If invested using compound interest, it will grow to be about 1110.

Matt runs 1500 m in 3 minutes 45 seconds. Find his average speed in m/s. Give your answer as a mixed number.​

Answers

6.25

meters per second or

22.5

kilometers per hour

Explanation:

1500

meters in

4

minutes or

240

seconds means

1500

240

=

1500

25

240

4

=

25

4

=

6.25

meters per second (dividing by

60

)

or

6.25

×

3600

=

22500

meters per hour

or

22.5

kilometers per hour.

Determine the slope from the graphs

Answers

Answer:

This is solved

Step-by-step explanation:

Hope this helps

A rectangle has a perimeter of 8x3 + 7x2 - 10x + 3 and a length of x. Find the width of the rectangle
when the length is 21 inches.
The width is
inches.

Answers

Answer:

22091

Step-by-step explanation:

hope this helps

Multiply. Write your answer in simplest form. 2 1/2 × 3 2/3 ​

Answers

2 1/2 = 5/2
3 2/3 = 11/3
5/2 x 11/3 = 55/6
55/6 = 9 1/6

Hope it helped.

The decimal not equivalent to two and three tenths is​

Answers

Answer:

2.3, 2 3/10

Step-by-step explanation:

I need help what is 11 times 34,000​

Answers

Answer:

374000

Step-by-step explanation:

use a calculator

Is x = 3 a solution to the equation 8= 2x + 3

yes or no

Answers

Answer:

NO

Step-by-step explanation:

substitute x=3  into the equation

2(3)+3

=9

Therefore x=3 is not a solution

Answer:

No, it is not a solution.

Step-by-step explanation:

x = 3

8 = 2x + 3

8 = 2 (3) + 3

8 = 6 + 3

8 ≠ 9

Can someone please explain how to factor this difficult problem.

Answers

I got =yx(8x-1)x(8x+1)

20.2694 to the nearest tenth

Answers

20.3

since 6 is in the hundredths place, you would round up to 3

PLEASE HELP IM CONFUSED HOW TO FACTORISE THESE
WILL MARK BRAINLIEST

Answers

Answer:

These are all quadratics, where the x/y/a/b coefficient has been cancelled out. So it's like factorising a quadratic. What i mean by the x/y/a/b coefficient being cancelled out is for example y^2 - 1, becomes (y - 1)(y + 1). This is equal to y^2 - y + y - 1. You can see that - y + y = 0, to therefore it's not visible in the final equation, but it's there.

c) y^2 - 1 = (y - 1)(y + 1)

d) x^2 - 64 = (x - 8)(x + 8)

g) a^2 - 81 = (a - 9)(a + 9)

h) x^2 - y^2 = (x - y)(x + y)

k) 25 - x^2 = (5 - x)(5 + x)

l) 1 - b^2 = (1 - b)(1 + b)

o) x^2 - 400 = (x - 20)(x + 20)

p) 900 - y^2 = (30 - y)(30 + y)

I hope this makes sense :))

Gordon starts in the northwest corner of a swimming pool and swims to the southeast corner. Then he swims along the width, a distance of 21 meters, and then along the length, a distance of 28 meters. Once Gordon returns to his starting point, how far has he swum?

Answers

Answer:

84 meters

Step-by-step explanation:

northwest corner to southeast corner= 35 meters

width= 21

length=28

total= 35+21+28=84 meters

Write story context for the equivalent shown
3/7x28=12?

(Please help)
have a good day/night!

Thank you for helping ​

Answers

Answer:

is 12=12 but need more context

-53/4-31/2= what’s the answer

Answers

Answer:

-155/4

Step-by-step explanation:

-53 + 62/ 4

⬇️

-53 + 62/4

Add

-155/4

The rectangle and a trapezoid have the same area what is the length L of the rectangle?

Answers

Answer:

Step-by-step explanation:

Area of rectangle = 9 * L

Area of trapezoid = (24 + 12)*9/2 =9 * 18

Same area, so

9 * L = 9 * 18

L = 18 ft

A scientist has 50 grams of a radioactive element. The amount of radioactive element remaining after t days can be
determined using the equation
f(0) - 50
(3)
After two days the scientist receives a second shipment of 50 grams of the
same element. The equation used to represent the amount of shipment 2 remaining after t days is R8) - 50
50l
. Which
of the following is an equivalent form of the expression for the amount remaining in shipment 2?

Answers

The equivalent expression for the amount remaining is an expression that has equal value

The equivalent form of the expression for the amount remaining in shipment 2 is [tex]f(t)=50(\frac12^\frac{1}{5})^{5t- 1}[/tex]

How to determine the equivalent expression

The initial equation of the function is:

[tex]f(t)=50(\frac12)^{\frac t{10}}[/tex]

The function after the scientist receives the second shipment after two days is:

[tex]f(t)=50(\frac12)^{t - \frac 2{10}}[/tex]

Simplify

[tex]f(t)=50(\frac12)^{t - \frac 1{5}}[/tex]

Take the LCM of the exponent

[tex]f(t)=50(\frac12)^{\frac{5t- 1}{5}}[/tex]

Express the exponent as a product expression

[tex]f(t)=50(\frac12)^{\frac{1}{5} * [5t- 1]}[/tex]

Rewrite as:

[tex]f(t)=50(\frac12^\frac{1}{5})^{5t- 1}[/tex]

Hence, the equivalent form of the expression for the amount remaining in shipment 2 is [tex]f(t)=50(\frac12^\frac{1}{5})^{5t- 1}[/tex]

Read more about equivalent expressions at:

https://brainly.com/question/2972832

Answer:

D is the correct answer

Step-by-step explanation:

A pattern follows the rule: obtuse triangle, obtuse triangle, right triangle, obtuse triangle... It also follows the rule isosceles, scalene isosceles, scalene. Draw a triangle that could be the fifth shape in the pattern and explain

Answers

The triangle gotten from this pattern is an isosceles obtuse triangle.

What is a pattern?

A pattern is a repeated arrangement of numbers, shapes, colours and other items.

Using the rule, we have two obtuse then one right triangle. Hence the fifth would be an obtuse triangle.

For the second, we have isosceles and scalene changing, hence the fifth would be isosceles.

The triangle gotten from this pattern is an isosceles obtuse triangle.

Find out more on pattern at: https://brainly.com/question/17386984

Solve this question please thanks

Answers

Answer:

9

Step-by-step explanation:

if this helped pls give brainliest

Search
Khan academy
You and your best friend are both on the swim team. You want to beat your friend at the next swim meet so you
decide to swim 15 minutes longer than she does one day at practice.
Write an equation for the number of minutes you swim, y, when your friend swims a number of minutes.
You swim 55 minutes.
How many minutes did your friend swim?
minutes
Stuck? Review related articles/videos or use a hint.
Report a problem

Answers

The answer is:y= x+15, 40

Simplify the expression (5x2 + 5x – 32) – 3(x2 + 2x +11)

Answers

Answer:

2x^2 - x - 65

Step-by-step explanation:

hope this helps

brainliest pls

have an awesome day -TJ

Answer:

2x² - x - 65

Step-by-step explanation:

[tex]5x^2+5x-32+(-3)(x^2)+(-3)(2x)+(-3)(11)[/tex] [tex]5x^2 + 5x - 32 - 3x^2 -6x-33[/tex] [tex](5x^2-3x^2)+(5x-6x)+(-32-33)[/tex] [tex]2x^2-x-65[/tex]

an airline is trying to promote its new Boston to Atlanta flight. the usual price for this flight is $315.00. however the airline is offering a 40% discount until the end of the month. how much will the flight cost after the discount?

Answers

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{40\% of 315}}{\left( \cfrac{40}{100} \right)315}\implies 126~\hfill \underset{\textit{after discount}}{\stackrel{315~~ - ~~126}{189}}[/tex]

If usual price for flight is $315.00, the airline is offering a 40% discount until the end of the month. then the cost of the flight after the discount is 126.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given that an airline is trying to promote its new Boston to Atlanta flight.

the usual price for this flight is $315.00.

The discount offered by airlines is 40%.

We need to find the cost of the flight after the discount.

Convert 40% to decimal by dividing with 100.

40/100=0.4

Now multiply 0.4 with 315

0.4×315

Zero point four times of three hundred and fifteen.

126

Hence, the cost of the flight after the discount is 126.

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ2

What is the missing value

Answers

Answer:

18

Step-by-step explanation:

I did my method that I was taught but if you do (-5) - (-2), you get 3. So you subtract 39 by the -21 to get 18.

Answer:

-52.5

Step-by-step explanation:

Which two operations are needed to write the expression that represents "five less than the quotient of a number and three"? tin​

Answers

Answer: The quotient is the result of a division and 'less than is a subtraction.

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