Mathematics High School

I need help!!! I’ll mark you brainliest
This is timed!!

I Need Help!!! Ill Mark You BrainliestThis Is Timed!!

Answers

Answer 1

Answer:

Using the inverse composition rule you know that if (fog)=x and (gof)=x then the functions are inverses.

( g o f ) = ( 7 x + 1 ) − 1 7  this will result in (gof)=x ( f o g) = 7 x − 1 7 +1 = x − 1 + 1 =x

graphically you can check this if it seems that the functions are reflected over the line x=y.

Step-by-step explanation:

Related Questions

In ΔRST, t = 9.5 inches, ∠R=149° and ∠S=12°. Find the length of r, to the nearest 10th of an inch.

Answers

Answer:

15

Step-by-step explanation:

Its right bro trust me

Write down the gradient of the line
(1 Point)
y=1/2x​

Answers

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The equation of a line in point- slope form is

y = mx + c ( m is the slope ( gradient ), c is the y- intercept )

y = [tex]\frac{1}{2}[/tex] x ← is in point- slope firm

with gradient = [tex]\frac{1}{2}[/tex]

The scale on a drawing is 2:in:5yd. If a length on the drawing is 6 inches, what is the actual length.

Answers

Answer:

15 yards

Step-by-step explanation:

proportion:

2/5:6/X

2x=30

x=15

Find the angle of w please

Answers

it’s 136 because...

68+68= 136

Element X is a radioactive isotope such that every 13 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 60 grams, how much of the element would remain after 30 years, to the nearest whole number?

Answers

Answer:

2,325 grams !

Step-by-step explanation:

No Solutions 2x + 5 + 2x + 3x = One Solution 2x+5+ 2x + 3x = Infinitely Many Solutions 2x + 5 + 2x + 3x =

Answers

Answer:

2x+5+2x +3x=7x+5       2x +5+ 2x + 3x = 7x+5

Step-by-step explanation:

What is the maximum of the sinusoidal function?

Answers

Answer: 2

Step-by-step explanation:

Solve by factoring.
s2 + 8s + 15 = 0

Answers

(s + 5) (s + 3)
s = -5, -3

Michael bought a guitar that was on sale for 15% off the regular price of $200. The total cost included 8% sales tax. What was the total cost?

Answers

Answer:

$183.60

Step-by-step explanation:

Take the regular price and find the 15% discount:

200 x 0.15 = 30

Subtract the discounted amount from the original price:

200 - 30 = 170

Take the new price and find the sales tax:

170 x 0.08 = 13.60

Add the sales tax to the discounted price:

170 + 13.60 = 183.60

The CEO of a cell-phone company has recently noticed a 26% sales decrease in the month of July compared to June. Let n represent June’s sales. If y represents July’s sales, which equation can be used to determine the sales in July?

Answers

Answer:

y = n - 0.26n

y = 0.74n

Step-by-step explanation:

The equation that can be used to express the function above is given an Exponential Decrease function

Where:

y = a(1 - r)^t

Where

y = July sales

a = n = June sales

r = rate of decrease = 26% = 0.26

t = time in months = June to July = 1 month

t = 1

Hence, our equation =

y = n( 1 - 0.26)¹

y = n(1 - 0.26)

y = n - 0.26n

y = 0.74n

The equation that can be used to determine the sales in July is given as:

y = n - 0.26n

y = 0.74n

The price p of a pizza is $6.95 plus $0.95 per topping t on the pizza, write a function rule

Answers

Answer:

y= 6.95+0.95t

Step-by-step explanation:

Given data

The price p of a pizza is $6.95

plus $0.95 per topping

let the number of toppings be  t

and let the total cost be y

Hence for any number of topping t the cost function is

[tex]y= 6.95+0.95t[/tex]

The function rule for the prize of a pizza is

[tex]P=0.95t +6.95[/tex]

Given :

The price p of a pizza is $6.95 plus $0.95 per topping t on the pizza

Initial price of the pizza is 6.95

The cost of each topping is 0.95 .

Let 't' be the number of toppings on the pizza

Price of  a pizza = initial cost of pizza + cost per pizza ( number of toppings)

[tex]p=6.95 +0.95(t)\\P=0.95t +6.95[/tex]

The function rule for the prize of a pizza is

[tex]P=0.95t +6.95[/tex]

Learn more  : brainly.com/question/5747203

If the area of a rectangle is x2 – 13x + 40, what are the lengths of
the two sides?

Answers

Answer:

5 and 8

Step-by-step explanation:

quadratic formula.

-(b)+sqrt(b)^2-4(a)(c)

^ans

divide the whole thing by 2(a).

If the formula isn't clear, search quadratic formula up.

A family's home is currently worth $1,553,426, which is 70% higher than the home was
worth when they bought it. What was the value of the home when they bought it?

Answers

Answer:

The value of home when bought was $913,780.

Step-by-step explanation:

Given that:

Current worth of the house = $1,553,426

This is 70% more than the original worth of the house.

Let,

100 be the original percent and x be the original worth

Percent increase = (100+70)% = 170%

170% of x = $1,553,426

[tex]\frac{170}{100}x=1553426[/tex]

1.7x = 1553426

Dividing both sides by 1.7

[tex]\frac{1.7x}{1.7}=\frac{1553426}{1.7}\\x= 913780[/tex]

Hence,

The value of home when bought was $913,780.

a bus accelerates from 2 m/s to 10 m/s in 5 seconds. What was its average acceleration?

Please Help

Answers

Answer:

I believe the answer is 4. Please correct me if I’m wrong.

Step-by-step explanation:

Answer:  1.6 m/s^2

================================================

Work Shown:

A = old velocity = 2 m/s

B = new velocity = 10 m/s

C = change in time = 5 seconds

D = average acceleration

D = (change in velocity)/(change in time)

D = (B-A)/C

D = (10-2)/5

D = 8/5

D = 1.6 m/s^2

The acceleration 1.6 m/s^2 means that the velocity is increasing by 1.6 m/s for every second.

Help please I’m confused! Easy 10 points closer picture then last time

Answers

Slope intercept form is y = mx + b

So the slope intercept form for -5 and 2 is
y = 2x - 5

It would be this because the mx represents the slope and the b represents the y intercept so all you have to do is plug in the numbers.

1
Problem
Which of the following demonstrates the distributive property? (5
pts)
a) 7 + (-7)= 0
b) 3+ 4 = 4 + 3
c) -5(x - 2) = -10x +10
d) (3x + 8) + 4 = 3x + (8 + 4)

Answers

C is an example of distribution property

Which of the following employees derives their income from a fee for the items sold?
a commission
b. piece rate
c.salaried
d. tip

Please select the best answer from the choices provided

Answers

Answer: commission

Step-by-step explanation:

Air Jordans cost the Nike Corporation $25 to manufacture in a factory.

A. The cost of the shoes is marked up 760% to obtain the retail price. What is the retail price?

B. You have a coupon for 20% off the retail price of a pair of Air Jordans. If there is a 6% sales tax, what is the final price to buy these shoes?

C. The retail price used to be $125 many years ago. What is the percent of increase from the former retail price to its current retail price (from your answer to part A)?

Answers

Answer:

n4ur84234r

Step-by-step explanation:

3874rfbh dc

At Silver Gym, membership is $20 per month, and personal training sessions are $35 each. At Fit Factor, membership is $40 per month, and personal training sessions are $25 each. In one month, how many personal training sessions would Sarah have to buy to make the total cost at the two gyms equal?


NEED IT DONE ASAP BY 6:00

Answers

Answer:

20+35x=40+25x, 35x- 25x=40-20, 10x=20, x=2 , 2 sessions

A box of chocolate cost $24.99 Plus 7% tax. What is the final price for the box of chocolates??

Answers

Answer:

$26.74

Step-by-step explanation:

24.99 x .07= 1.7493

24.99+1.7493= 26.7393

Round to nearest cent

$26.74

BRAINLIEST PLZZ :)

What Association is for a persons IQ

Answers

Answer:

association is completed

Step-by-step explanation:

paturo

HI PLASE HELP -3x-4<5

Answers

Answer:

-3

Step-by-step explanation:

-3x - 4 < 5

-3x < 9

x < -3

Question 4 of 10 The slope of the line below is - 2. Use the coordinates of the labeled point to find a point-slope equation of the line. (4,-6)​

Answers

Answer:

y = -2x + 2

Step-by-step explanation:

which shape has diagonals that bisect each other but not at 90 degrees?

Answers

It’s 35 right angle

ILL GIVE BRAINLIEST AND EVERYTHING ELSEEE HELP

Answers

Answer:

3x+18

Step-by-step explanation:

multiply it out to get 3x+18

Answer:

Hola!

RESPUESTA =3x+18

Step-by-step explanation:


Which rule explains why these triangles are congruent?

SSS
SAS
AAS
ASA
THESE TRIANGLES CANNOT BE PROVEN CONGRUENT

Answers

AAS

(20 characters minimum)

Bill is h cm tall. Sienna is 4 cm taller than Bill. What is the expression in terms of h for sienna height in centimeters.

Answers

The expression in terms of h for siennas height would be h+4 because sienna is 4 cms taller than bill and bills height is equal to h
It’s 4 the question said it

Write the equation of the line that passes through the points (7, -9) and
(2, -7). Put your answer in fully reduced point-slope form, unless it is a
vertical or horizontal line.

Answers

Answer:

y + 9 = -2/5(x - 7)

0.2(3b - 15c)
plz help me

Answers

Answer:

if you meant to simplify here you go

Step-by-step explanation:

0.2(3b - 15c)=

0.2(3b)+0.2(−15c)=

0.6b−3c

Answer:

0.6b-3c

Explination:

0.2(3b - 15c)

we can use dispributive property because of the parentheses

by distributing 0.2 to 3b and -15c

we get 0.6b and -3c

you could be thinking why did the numbers shrink?

the numbers decrease because every time you multiply by a decimal the number decreases

High Hopes  

                          Barry-

need help quickly! please

Answers

Answer:

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Step-by-step explanation:

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