how do you find out whether somethings a function or not?​

Answers

Answer 1

Step-by-step explanation:

if you can put a vertical line through it and it only touches the line once it's a function

Answer 2

Answer:

Step-by-step explanation:


Related Questions

please help me asap will give brainliest

Answers

Step-by-step explanation:

The longest side in a triangle is opposite the largest angle, and the shortest side is opposite the smallest angle.

So the smallest angle is <P.

Hope it may help :)..

solve -3x-2y=2, 9x-5y=-28 using the elimination method

Answers

The answer is the picture. Hope this helped.

What is the base in the following expression?

Answers

Answer: A. 4

Step-by-step explanation: The base number is 4 and the exponent is 5. Hope this helps ^-^.

a.4 is the answer i am guessing

help me to solve this please​

Answers

Answer:

-4/9

Step-by-step explanation:

We first calculate the first bracket.

[2/3-(-4/9)]

= (2/3+4/9) (we cancel out the negatives)

= (6/9+4/9) (common denominator)

= 10/9

Then we convert -2 1/2 into an improper fraction.

-2 1/2

= -5/2

Finally we calculate the division by swapping the numerator and denominator of -5/2.

10/9 / -5/2

= 10/9 * -2/5

= -20/45

= -4/9 (simplify the terms)

Give each a sum or difference:
a. -12+4=
b. -4+1=
c. 4 - 12=
d. 4+12=

Answers

A. -8
B. -3
C. -8
D. 16

If light travel at 3 • 10^8 meters per second. How far can light travel in one minute?

Write your answer in scientific notation.

Answers

Answer:

300,000,000 per minute

Step-by-step explanation:

3*10⁸

10⁸ = 100,000,000

3*100,000,000 = 300,000,000

Help please :)
And tell me the slope please

Answers

Answer:

[tex]\frac{ \frac{7}{3}}{\frac{1}{3}}[/tex]  is the slope

Step-by-step explanation:

rise over run

find the area hurry plz​

Answers

Answer:18

Step-by-step explanation: 6x3

the formula for area: parallelogram

Standard form of y=7x+10

Answers

Answer: 7x-y=10

Step-by-step explanation:

What expressions are equivalent to -4/3 p -2/5

Answers

Answer:

-3/6

Step-by-step explanation:

integer rules

A game of chance involves spinning a wheel with 4 number on it. The wheel is designed so that the result of each spin Xhas the following probability distribution. 2 3 Result of a spin .x Probability : 0.50
(a) Find and interpret the mean of X.
(b) Find and interpret the standard deviation of x.
(c) It costs a player $5 for a single spin. The player will receive (in dollars) three times the number that appears. So the profit for one play of this game is Yeur 5. What is the mean and standard deviation of 7

Answers

Distribution table :

X : ___ 1 _____ 2 _____ 3 ______ 4

P(x) __0.50 __0.25 __ 0.15 ____ 0.10

Answer:

1.85 ; 1.014 ;` 0.55 ; 3.042

Step-by-step explanation:

Probability distribution :

X : ___ 1 _____ 2 _____ 3 ______ 4

P(x) __0.50 __0.25 __ 0.15 ____ 0.10

The mean: E(x) = Σ(X * p(x))

(1*0.5) + (2*0.25) + (3*0.15) + (4 *0.10)

= 1.85

Standard deviation = sqrt(Var(x))

Var(x) = Σ(x²*p(x)) - E(x)²

Var(x) = ((1^2*0.5) + (2^2*0.25) + (3^2*0.15) + (4^2 *0.10)) - 1.85^2

= 4.45 - 3.4225

= 1.0275

Standard deviation = sqrt(1.0275)

Standard deviation = 1.0136567

Standard deviation(X) = 1.014

3.)

Cost of spin = $5

Amount, y to be received = 3 times the number that appears

y = 3x - cost of playing

y = 3x - 5

E(y) = E(3x - 5)

E(y) = E(3x) - 5

Recall :E(x) = 1.85

E(y) = 3(1.85) - 5

E(y) = 0.55

Standard deviation :Sd(y) =

Sd(3x - 5)

3(1.014)

= 3.042

Find the solution to each equation mentally or use your calculator. (do the opposite of the number on the left side of the equation)

A: 30+a=40


B: 500+b=200


C: −1+c=−2


D: d+3,​567=0

Answers

A) a=10

B) b= -300

C) c= -1

D) -3567

witch equation represents a linear function

Answers

Y=3x2+1
Hope this helped :)

33 divided by a number Q.

Answers

Answer:

33/Q?

Step-by-step explanation:

im confused on what the problem is

2.550 gallons in 30 days?​

Answers

Answer:

85 gallons a day.

Step-by-step explanation:

that's if you mean 2,550 and how many gallons a day you fill a pool for example. but that's a guess for the question.

What is the value of x in the equation below?

Negative 3 minus (negative 8) minus (negative 2) = x

Answers

Silver for x

-3 - (-8) - (-2) = x

Switch the equation to make x on the right

x = -3 - (-8) - (-2)

x = 5 - (-2)

x = 7

• A negative minus a negative will always evaluate to a positive.

• A positive minus a negative will always evaluate to a positive.

Answer:

D

Step-by-step explanation:

Took the test ;)

HELP MEEEEE this is so harddd. the picture is above.

Answers

Answer:

A)

Step-by-step explanation:

V=1/3([tex]\pi[/tex]r²)h

3* V=1/3(πr²h)*3 to get rid of the 1/3 on that side

3V/(πr²)=(πr²)h/(πr²) to get rid of the πr² on the other side(they cancel out)

3V/(πr²)=h is the final answer so that matches A

A ski lift makes a 35° angle of elevation with the ground and takes passengers on a 6,550-foot ride up a mountain. Charlotte needs to figure out the elevation of the lift. Which equation and diagram can be used to model this problem?

Answers

Answer:

Top right one is the answer

Step-by-step explanation:

B :)

The elevation of the lift is equivalent to 11293.1 ft.

What is the angle of elevation?

The angle of elevation is an angle that is formed between the horizontal line and the line of sight.

Given is that a ski lift makes a 35° angle of elevation with the ground and takes passengers on a 6,550 foot ride up a mountain.

Assume the elevation to be [x] ft. We can find the elevation as -

sin (35°) = (6550/x)

x = {6550/sin(35°)}

x = (6550/0.58)

x = 11293.1 ft

Therefore, the elevation of the lift is equivalent to 11293.1 ft.

To solve more questions on Angle of elevation, visit the link below-

https://brainly.com/question/29008290

#SPJ2

I REALLY NEED HELP? :,)

Answers

reciprocal of 6 by 3 is 3 by 6

Answer:

3/7

Step-by-step explanation:

The shadow of a 60 foot pole is a 100 feet long. What is the angle of evaluation from the end of the shadow to the top of the pole?

Answers

Answer:

The angle is approximately [tex]31^{o}[/tex].

Step-by-step explanation:

The description i the given question can be represented with the sides of a right angled triangle.

Applying the appropriate trigonometric function, we have;

Tan θ = [tex]\frac{opposite}{adjacent}[/tex]

In the question, opposite side = 60 feet, and adjacent side = 100 feet.

Tan θ = [tex]\frac{60}{100}[/tex]

         = 0.6

θ = [tex]Tan^{-1}[/tex] 0.6

  = [tex]30.964^{o}[/tex]

θ = [tex]31^{o}[/tex]

The angle of elevation from the end of the shadow to the top of the pole is [tex]31^{o}[/tex].

sketch the graph y=x^2+2x+3, indicating clearly the coordinates of any intersection and the coordinates of axes​

Answers

hope this helps you with your question

What is the coefficient in the following expression?
5a2-7

Answers

Answer:

5

Step-by-step explanation:

coefficeint is the number before the variable

Solve the proportion ASAP help do both questions

Answers

Answer:

7. 4

8. 7

Step-by-step explanation:

7. [tex] \frac{1}{2} = \frac{x}{8} [/tex]

Cross multiply

[tex] 1*8 = x*2 [/tex]

[tex] 8 = 2x [/tex]

[tex] \frac{8}{2} = \frac{2x}{2} [/tex] (division property of equality)

[tex] 4 = x [/tex]

[tex] x = 4 [/tex]

8. [tex] \frac{3}{x - 3} = \frac{6}{8} [/tex]

Cross multiply

[tex] 3*8 = 6(x - 3) [/tex]

[tex] 24 = 6x - 18 [/tex]

[tex] 24 + 18 = 6x [/tex] (addition property of equality)

[tex] 42 = 6x [/tex]

Divide both sides by 6

[tex] 7 = x [/tex]

[tex] x = 7 [/tex]

Help me out with this question (geometry)

Answers

Answer:

116

Step-by-step explanation:

13x-1 = 2(6x+4)

13x-1 = 12x+8

x=9

A 300 room hotel can rent every one of its rooms at $80 per room. For every $1 increase in rent, 3 fewer rooms are rented.
How much should the hotel charge for each room to maximize its daily revenue? What is the maximum daily revenue?

Answers

Answer:

The hotel charge for each room to maximize its daily revenue and the maximum daily revenue is explained below in details.

Step-by-step explanation:

So for every $1 hike in price, the number of rooms goes underneath by 1.

So the earnings can be displayed by R(x) = (300-x)(80+x)

From that, you require to subtract 22(300-x) since it takes $22 per occupied room.

AND there is a framed cost of $1000 per day.

So your profit function is P(x) = (300-x)(80+x) - 22(300-x) - 1000

Simplified, this is P(x) = -x2 +242x + 16400.

P'(x) = -2x + 242  Set it = to 0

x = 121 which displayed the number of unoccupied rooms.

P(121) = -14641 + 29282 + 16400 = $31041

You can verify by computing P(120) and P(122) which both even $31040.

Hope this helps.

Pls help me this is 7th grade math

Answers

Answer:

118 degrees

Step-by-step explanation:

180-62 = 118

What is the measure of the angle? Enter the answer in the box.

Answers

Answer: Acute angle

Step-by-step explanation:

because it is at a 62 I think angle

help please. I need ​

Answers

Answer:

the slope is= 3/2

y= (3/2)x + (-4)

Someone please help and thank you

Answers

Answer:

7 : 3

Step-by-step explanation:

Divide both numbers by 6

Answer:

Step-by-step explanation:

42:18=42/18=7/3=7:3

I hope it help you

this is so easy

benjamin believes that 1/2% is equivalent to 50%. Is he correct? Why or why not?​

Answers

Answer:

yes because 1 divided by 2 is 0.5 which can be converted to 50%

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