Determine whether the functions given are one-to-one. If not, state why.
(9,1),(-2,7),(7,4),(3,9),(2,7)}

Answers

Answer 1

Answer:

y

Step-by-step explanation:


Related Questions

The ladder of a fire truck extends 41 ft. to the top of the
building. If the distance between the wall and the base of the
ladder is 9ft. How tall is the building?

Answers

Answer:

Step-by-step explanation:

By the Pythagorean Theorem a^2+b^2=c^2 or the sum of the squared sides is equal to the hypotenuse squared.

41^2=9^2+h^2

h^2=41^2-9^2

h^2=1600

h=40 ft

WHAT IS 3³ . (12 - 2) ÷ 2?

Answers

Answer:

if the period is a multiplication sign then its 135

Step-by-step explanation:

Answer:

135

Step-by-step explanation:

following the PEMDAS rule, of course

Can anyone help me please

Answers

Answer:

y = 120

Step-by-step explanation:

y = 4x (corresponding angles)

y + 2x = 180

substitute the value of y into the second equation

4x + 2x = 180

6x = 180

x = 30

now that we have the value of x, plug it into either equation and solve for y

y = 4 (30)

y = 120

Find the perimeter of ABHG. Round your answer to the nearest tenth of an inch.

Answers

Answer:

Step-by-step explanation:

250% as a fraction in simplest form

Answers

Answer:

I think 1/4

Step-by-step explanation:

1000% ÷ 4 =250%

Step-by-step explanation:

(250÷50)/(100÷50) = 5/2 when reduced to the simplest form.

I am not understanding this topic in math and I have a huge test tomorrow and I need to sleep, I forgot about this assignment and I would really appreciate it if someone could help me out with this!!! ❤️

Answers

Answer: (-3,-4)

Step-by-step explanation:

If the any x variable is repeated, it is not a function!

Factor each completely :

NEED THIS ANSWER ASAP

Answers

Answer:

4) 7k² + 9k

= k(7k + 9)

5) x² - 25

= (x)² - (5)².

(a² - b²) = (a+b)(a-b)

= (x - 5)(x + 5)

need a answer ASAP!

Answers

It is B, 9.1=a+4 so a=5.1
Hope this helps!

WILL MARK BRAINLIEST! Kody’s alarm rings every 11 minutes, and his dad calls upstairs every 15 minutes to wake him up. But Kody will only wake up if his alarm rings and his dad calls him at the same time. If his alarm first rings at 7:00 a.m. and his dad first calls him at 7:05 a.m., at what time will Kody wake up?

Answers

Answer:

10:15

Step-by-step explanation:

Deanna and Lisa are playing games at the arcade. Deanna started with $15, and the machine she is playing costs $0.75 per game. Lisa started with $13 and her machine costs $0.50 per game. After how many games will the girls have the same amount of money remaining?​

Answers

Answer:  After they've played 8 games, they will have the same amount of money remaining.

Step-by-step explanation:

Represent the number of games by the variable x and the remaining amount of money by the variable y.  

 Deanna's situation can be represented by the equation   y = 15 - 0.75x  

Lisa's situation can be represented by the equation   y = 13 - 0.50x  

Now to find out how many games they will have the same amount of money remaining, you have to use substitution and solve for x.

15 - 0.75x = 13 - 0.50x

-13               -13

        2 - 0.75x = - 0.50x

             +0.75x      +0.75x

  2 =  0.25x  

 x  = 8  

         

1/3 of 5/8 as a fraction

Answers

Answer: how are you doing this tho

Step-by-step explanation:

The 1/3 of 5/8 as a fraction is 5/24 after applying the arithmetic operation the answer is 5/24.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

It is given that:

1/3 of 5/8 as a fraction

Let x be the fraction:

x = 1/3 of 5/8

Or

x = (1/3)(5/8)

The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

After multiplication:

x = 5/24

Thus, the 1/3 of 5/8 as a fraction is 5/24 after applying the arithmetic operation the answer is 5/24.

Learn more about the fraction here:

brainly.com/question/1301963

#SPJ2

If Cara works 14 hours, she earns $84. If she works 19 hours, she earns $114. Let y represent the total amount of money that Cara earns working x number of hours. Model a equation and determine if this is a direction or inverse variation. 20 POINTS!!

Answers

Answer:

Step-by-step explanation:

14r=84, r=84/14=6, so the hourly rate is $6 an hour so

y(x)=6x

Since this is of the form y/x=k or y=kx it is directly proportional. Inverse proportion is of the form yx=k or y=k/x

What is 180/80=80/80*a^6

Answers

Answer:

[tex]a = \sqrt[3]{\frac{3}{2}}[/tex]

Step-by-step explanation:

Given

[tex]\frac{180}{80}=\frac{80}{80}*a^6[/tex]

Required

Solve for a

[tex]\frac{180}{80}=\frac{80}{80}*a^6[/tex]

[tex]\frac{180}{80}=1*a^6[/tex]

[tex]\frac{180}{80}=a^6[/tex]

[tex]a^6 = \frac{180}{80}[/tex]

[tex]a^6 = \frac{18}{8}[/tex]

[tex]a^6 = \frac{9}{4}[/tex]

Take the square root of both sides

[tex]\sqrt{a^6} = \sqrt{\frac{9}{4}[/tex]

[tex]a^3 = \frac{3}{2}[/tex]

Take cube rooth of both sides

[tex]a = \sqrt[3]{\frac{3}{2}}[/tex]

Help
Help
Help
Help
Help

Answers

Answer:

1.92

Step-by-step explanation:

multipy 8 by .08 to get the sales tax amount

to find the total cost (if you need it) add the sales tax to the original cost

hope it helps

Answer:

1.92

Step-by-step explanation:   niueikieoewdn4u

Can someone help me plsssss

Answers

Answer:

x = [tex]\sqrt{116}[/tex]

Step-by-step explanation:

Remember the pythagorean theorem is A^2 + B^2 = C^2\

C is the hypotenuse which you are looking for.

SO

100 + 16 = [tex]\sqrt{116}[/tex]

ANSWER [tex]\sqrt{116}[/tex] or about 10.7703296143

I’ll help if u help me lol

Use the definition of a derivative to find f'(x):

f(x) = 3x + 2y + 5x^2

Answers

Answer:

15

5×2=10

10

3+2=5

10+5=15

Other man is right above me

so 1.61 km = 1 mile, and my math assignment asks how many miles is 10,000 km, help!!

Answers

Answer:

16,100

Step-by-step explanation:

1.61 x 10,000

Niles scored 70, 74, 72, 71, 73, and 96 on his 6 Geography test. Calculate the mean and median.

Answers

Answer:

Mean=76

Median=72.5

Step-by-step explanation:

Mean= 70+71+72+73+74+96

                         456/6=76

Median = 70,71,72,73,74,96

               72+73=145/2=72.5

Mean= 76

Median= 72.5

The first step is to rearrange the numbers

70, 71, 72, 73, 74, 96

1. mean= sum of terms/number of terms

= 70+71+72+73+74+96/6

= 456/6

= 76

2. Median can be described as the middle number, the median can be calculated as follows

= 72+73/2

= 145/2

= 72.5

Hence the mean is 76 and the median is 72.5

Please see the link below for more information

https://brainly.com/question/12594842?referrer=searchResults

A principal of ​$7000 is invested in an account paying an annual rate of 7%. Find the amount in the account after 5 years if the account is compounded​ semiannually, quarterly, and monthly. (a) The amount in the account after 5 years if the account is compounded semiannually is? (Round to the nearest cent.)

Answers

Answer:

$2,874.19

Step-by-step explanation:

Hope this helps

Max points! I need these answered quick

Answers

Answer:

4) 1/5

5) 5/28

6) 7/36

Step-by-step explanation:

4) 3/15=1/5

5) 5/28

6) 14/72=7/36

Answer:

3/5 × 1/3 = 1/5

5/7 × 1/4 = 5/28

7/8 × 2/9 = 7/36

Step-by-step explanation:

write a word problem that can be modeled by the equation x + 5 = 12

Answers

Answer:

x=7

Step-by-step explanation:

x+5=12

 -5  -5

  x=7

It’s x=7 because you have to do 12-5 and that would equal to 7 so 7+5 would equal to 12

WHO CAN ANSWER THIS TOOO

Answers

Direct answer :

Width of the enlarged photograph = 14 cm

Steps to derive the correct answer :

Length of a small photograph = 6 cm

Width of a small photograph = 4 cm

Length of the photograph when enlarged = 21 cm

Let the width of the photograph when enlarged be x.

Which means :

[tex] = \tt 4 : 6 : : x : 21[/tex]

[tex] =\tt \frac{4}{6} = \frac{x}{21} [/tex]

[tex] =\tt 4 \times 21 = 6 \times x[/tex]

[tex] =\tt 84 = 6x[/tex]

[tex] =\tt x = \frac{84}{6} [/tex]

[tex] =\tt x = 14[/tex]

Thus, the value of x = 14

Therefore, the width of the enlarged photograph = 14 cm

Pls someone help me if you can !!

Answers

Answer:

1890 cubic inches

Go Green, a landscaping company, has seven employees including the manager, Zenya. The yearly salary for each employee is shown in the table
Employee
Jimmy
Aysel
Dakota
Sven
Anika
Miku
Zenya
Salary
$18,000
$22,000
$21,000
$24,000
$25,000
$20,000
$46,000
If Go Green is placing an ad on the Internet to hire an additional employee, which measure would be most accurate to determine the salary of the 8th employee?
O mean
O median
O mode
interquartile range

Answers

Answer:

Mean

Step-by-step explanation:

A Ferris wheel has a radius of 37 feet. The bottom of the Ferris wheel sits 0.6 feet above the ground. You board the Ferris wheel at the 6 o'clock position and rotate counter-clockwise.

Write a function f that determines your height above the ground (in feet) in terms of the number of radians you have swept out from the 6 o'clock position, a.
f(a)=

Write a function g, that determines your height above the ground (in feet) in terms of the number of feet you have traveled since you started rotating, s.
g(s)=


Answers

Answer:For the first one, it should be f(a)=37.8(1-cos(a))+.7. My dearest apologies because I do not know why. I just used context from the previous questions. I hope that helps..!

Step-by-step explanation:

The height of the given Ferris wheel can be described with the aid of a

sinusoidal function.

The height above the ground in terms of the angle turned, a, is

presented as follows;

[tex]\underline{f(a) = 37 \cdot sin \left (a - \dfrac{\pi}{2} \right) + 0.6}[/tex]

The height above the ground in terms of the distance traveled, s, is

presented as follows;

[tex]\underline{g(s) = 37 \cdot sin \left (\dfrac{37}{s} - \dfrac{\pi}{2} \right) + 0.6}[/tex]

Reason:

The general form of an equation of a Ferris wheel is presented as follows;

f(a) = A·sin(a + C) + D

Where, the amplitude, A = The radius = 37 ft.

D = The midline = Height above the ground + The amplitude

D = A + 0.6 = 37 + 0.6 = 37.6

The 6 O'clock is the lower most position, therefore, at the start, where, 'B·t + C' = 0, we have;

f(a) = A·sin(0 + C) + D

Therefore

f(a) = 37·sin(0 + C) + 37.6 = 0.6

f(a) = 37·sin(C) = 0.6 - 37.6 = -37

[tex]sin(C) = \dfrac{-37}{37} = -1[/tex]

C = sin⁻¹(-1) = [tex]-\dfrac{\pi}{2}[/tex]

The equation of Ferris wheel is presented as follows;

Which gives the equation of the height above the ground (in feet) in terms

of the number of radians, a, you have swept out from the 6 O'clock

position is given as follows; Ferris ;

[tex]\underline{f(a) = 37 \cdot sin \left (a - \dfrac{\pi}{2} \right) + 0.6}[/tex]

Part 2

s = a·r = a·A

Therefore;

[tex]a = \dfrac{r}{s} = \dfrac{A}{s} = \dfrac{37}{s}[/tex]

Plugging the value of s into the above equation gives the function that

determines the height above the ground (in feet) in terms of the number of

feet traveled g(s) as follows;

[tex]\underline{g(s) = 37 \cdot sin \left (\dfrac{37}{s} - \dfrac{\pi}{2} \right) + 0.6}[/tex]

Learn more here:

https://brainly.com/question/23844627

Each rectangle below has an area of 4 cm? Each square has an area of 2 cm?
If a rectangular box were made from the pattern, what would be the surface area?

Answers

Answer:

Literally any even number that’s not two or four

Step-by-step explanation:

I need a layout

Alvin's age is two times Elga's age. The sum of their ages is 81. What is Elga's age?

Answers

Answer:

Elga is 27 years old

Step-by-step explanation:

        AGE

Alvin 2x

Elga  x

x+2x = 81

81=3x

81/3=x

x=27

Hope this helps! (:

Answer:

20.25

Step-by-step explanation:

81 = (x*2)*2

81 ÷2 ÷2 = x

x = 20.25 or 20 and 1/4

2/9 of the students in a school are in sixth grade.

How many students are in the school if 42 of them are sixth graders?

Answers

Answer:

189 students

Step-by-step explanation:

In a class of 32 students, 16 students study Spanish, 14 students are in band, 6 students are in both Spanish and band. What is p(Only Spanish Student)?

Answers

Answer:

Step-by-step explanation:

16 students study spanish, but 6 student that study spanish are also in the band.

16-6=10

So there are 10 students who only study spanish.

AUVW - APOR
W
63
U
V
77
P
66
R
?
2
Q
SOMEONE PLS HELP.

Answers

Answer:

x = 54

Step-by-step explanation:

Since both triangles are similar, therefore,

[tex] \frac{UV}{PQ} = \frac{VW}{QR} [/tex]

[tex] \frac{77}{66} = \frac{63}{x} [/tex]

[tex] \frac{7}{6} = \frac{63}{x} [/tex]

Cross multiply

[tex] 7*x = 63*6 [/tex]

[tex] 7x = 378 [/tex]

Divide both sides by 7

x = 54

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