What is a function? Explain briefly

Answers

Answer 1

Answer:

in mathamatics...an algebraic function that can be defined as a root od a polynomial equation

Step-by-step explanation:

Answer 2

Answer:

A function is the difference between the input and the output in a given table. Here is an example:

Input | Output

  2     |     4

  4     |     6

  6     |     8

The function is add 2. Best of Luck!


Related Questions

I need help with all of these questions, I would really appreciate it if you would help me, thank you! Also if you would like to send the answers on Instagram my account name is habibamalikkk

Answers

Answer: 10. Answer is -3

Step-by-step explanation:

At a desert resort, the temperature at 7 a.m. was 3°C. The temperature increased by an average of 3.4°C each hour until it reached 30.2°C. How long did it take to reach this temperature?

Answers

Answer: It will take 8 hours to reach this temperature.

Step-by-step explanation:

Given: At a desert resort, the temperature at 7 a.m. was 3°C.

The temperature increased by an average of 3.4°C each hour until it reached 30.2°C.

Let x be the number of hours taken to reach 30.2°C..

As per given ,

Initial temperature +(average increase in temperature) (Number of hours) = 30.2

⇒3+3.4x=30.2

⇒3.4x=30.2-3

⇒3.4x=27.2

⇒ x=8    [Divide both sides by 3.4]

Hence, it will take 8 hours to reach this temperature.

Gloria’s washing machine is broken. Since her machine is pretty old, she doesn’t want to spend more than $100 for repairs. A service call will cost $35 and the labor will be an additional $20 per hour. There are no other charges. What is the maximum number of hours that the repair person can work without the total cost exceeding $100?

Answers

Answer:

The actual answer is 3.25

Step-by-step explanation:

I just took the test

the maximum number of hours that the repair person can work is 3.5 hours

Given :

Gloria doesn’t want to spend more than $100.

A service call will cost $35 and the labor will be an additional $20 per hour

Let 'h' be the maximum number of hours the repair can take.

Lets find out the total cost for 'h' hours

35+ additional 20 per hour

[tex]35+20h[/tex]

The total cost should not exceed 100

[tex]35+20h \leq 100\\20h \leq 100-35\\20h\leq 65\\Divide \; by \; 20\\h\leq 3.5[/tex]

So , the maximum number of hours that the repair person can work is 3.5 hours

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Selina walked 2 1/2 miles in 2/3 hour. Dennis 6 3/4 miles in 1 1/2 hours. Who walked faster and how much faster?

Answers

Answer:

Dennis walked faster by 0.75 miles/hr

Step-by-step explanation:

a)Selina's speed

speed= distance

                 time

          = 2.5 miles       =  3.75 miles/hr = the slower

               2/3 hrs

b) Dennis' speed

speed =  distance

                  time

           =  6.75 miles        = 4.5 miles/hr  = the faster    

                   1.5 hrs

difference in speed:

faster - slower

4.5 - 3.75

=0.75 miles/hr

Dennis walked 0.75 miles per hour faster than Selina's speed.

What is Average speed?

Average speed is defined as the ratio of the total distance traveled by a body to the total time taken for the body to reach its destination.

To determine Selina's speed

speed = distance/time

speed = 2.5 miles/(2/3) hour

speed = 3.75 miles/hour

To determine Dennis' speed

speed = distance/time

speed = 6.75 miles/(1.5) hour

speed = 4.5 miles/hour

Here Dennis' speed is greater than Selina's speed which means Dennis walked faster.

     

So the difference in speed = Dennis' speed - Selina's speed

The difference in speed = 4.5 miles/hour - 3.75 miles/hour

The difference in speed = 0.75 miles/hr

Thus, Dennis walked 0.75 miles per hour faster than Selina's speed.

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2. Find the measure of the missing angle.

Help me plzzzzzzz I need it!!!

Answers

Answer:

84°

Step-by-step explanation:

Alternating interior angles are congruent.

If 3a - 2 = 10, what is the value of 8a + 1?

Answers

Answer:

8a+1=33

Step-by-step explanation:

you can solve 3a-2=10 by simplifying to 3a=12, so a=4. Then you replace the a in 8a+1 with 4 to get 32+1, which is 33

Answer:

33

Step-by-step explanation:

3a-2= 10

3a=12

a=4

in this equation a=4 so you substitute that value into the other equation

8(4) +1=33

WILL GIVE BRAINLIEST!!!!!!

Answers

Answer:

17.738

Step-by-step explanation:

to find x we’ll use sine

sin69=x/19

(remember that sine = opposite/hypotenuse)

so x = 19sin69

when typing this in your calculator you might need to change from radian to degree mode

mia uses triangle A and says the slope of this line is 6/4.Elena use triangle B and say no,the slope is 1.5

Answers

Incomplete question.

Angles A and B are supplementary angles. The mZA = (9x - 12) and the mZB = (24x + 60).​

Answers

Answer:

/ A = 24°

/ B = 156°

Step-by-step explanation:

Supplementary angles add up to 180°.

_________________________________

Therefore, / A + / B = 180

(9x - 12) + (24x + 60) = 180

9x - 12 + 24x + 60 = 180

33x + 48 = 180

33x = 180 - 48

33x = 132

x = 132/33

x = 12/3

x = 4

_________________________________

/ A = (9x - 12)

= (9(4) - 12)

= (36 - 12)

= 24°

/ B = (24x + 60)

= (24(4) + 60)

= (96 + 60)

= 156°

_________________________________

#teamtrees#WAP

A seventh-grade class is playing the Integer Game modified to include rational numbers. Write a multiplication or division equation to answer the following questions with reference to the Integer Game. Show all of your work.

a. Tobias removes three —3.25 cards from his hand. How does this affect the overall point value of the cards in his hand?
The point value of the cards in Tobias' hand will increase.
The point value of the cards in Tobias' hand will decrease.
b. The cards in Iman's hand had a value of 2.75, but then she added five -1.5 cards to her hand. What is the new value of the cards in her hand?​

Answers

Your answer is option A

question 8 pls help me please

Answers

The correct answer is B

Answer:

B

Step-by-step explanation:

A is Standard Intercept Form

B is Point Slope Form

The rest are used for other problems I'm unsure of

Can someone help me with that pls​

Answers

Answer:

area = length x width or LW

Step-by-step explanation:

the answer is 6 1/15

Mrs.Johnsons new car has an 18 gallon gas tank. If she can travel 400 miles on one tank of gasoline, what is her miles per gallon rate to the nearest whole number

Answers

Answer:

22

Step-by-step explanation:

400/18=22.222222222

Round to 22

I’m honestly so dumb can someone help me?

Answers

Answer: Hope it helps, have a nice day :)

A: 0.3

A:  3/10

B: 0.6

B: 6/10 (3/5 if simplified)

C: 1.4

C: 1 4/10

D: 1.9

D: 1 9/10

Step-by-step explanation:

The first letter is decimal and the second is fractions- just likes yours

Three friends each have some ribbon. Carol has 42 inches of ribbon, Tino has 2.5 feet of ribbon, and Baxter has 1.5 yards of ribbon. Who has the most ribbon? How do you know?

Answers

Answer: Baxter

Step-by-step explanation:

To solve this question, we need to know that:

12 inches = 1 foot

36 inches = 1 yard

The number of ribbon for each person will be:

Carol = 42 ribbons

Tino = 2.5 feet = 2.5 × 12 = 30 ribbons

Baxter = 1.5 yard = 1.5 × 36 = 54 ribbons

Therefore, Baxter has the most ribbon

A passenger on a stranded lifeboat shoots two distress flares into the air. The first flare travels a maximum height 196 feet and lands in the water after 7 seconds. The height (feet) of the second flare above the water is given by f(t) = -16t(t-8), where t is time (seconds) since the flare was shot. Which flare travels higher? Which remains in the air longer?

Answers

Answer:

The second flare travels higher, 256 feet, and remains in the air longer, 8 seconds, than the first flare

Step-by-step explanation:

The given parameters are;

The height of the first flare = 196 feet

The duration the first flare spends in the air = 7 seconds

The function representing the height of the second flair is f(t) = -16t(t - 8)

Where;

t = The time since the passenger shot the second flare

The time the flair stays i the air is given by the time it takes for the height, f(t),  to be 0 as follows;

f(t) = 0 = -16t(t - 8)

-16t(t - 8) = 0

t = 0, or t = 8

The time the second flare stays in the air = 8 seconds

The maximum height reached by the second flair is given by the finding the maximum point of the curve of the function as follows;

d(f(t))/dt = 0 = d(-16t(t - 8))/dt = -32t + 128 at the maximum point (the coefficient of t² is negative in the quadratic equation)

-32t + 128 = 0

128 = 32t

32t = 128

t = 128/32 = 4

t = 4 at maximum height and f(4) = -16 × 4 × (4 - 8) = 256 feet

The maximum height reached by the second flare f(4) = -16 × 4 × (4 - 8) = 256 feet.

Therefore, the second flare travels higher, 256 feet, and remains in the air longer, 8 seconds, than the first flare, with maximum height of 196 feet, and time in the air of 7 seconds.

If M(2,3) is reflected in the line y=4, then M' is (6,3)
TRUE OR FALSE???

Answers

Answer:

It is false

Step-by-step explanation:

It's false since M' should be (2,5)

(6,3) is point M reflected about the axis or line: x = 4.

Write an equation in slope-intercept form of the line that passes through (-1, 4) and (0, 2)

Answers

Answer:

y = -2x + 2

General Formulas and Concepts

Pre-Alg

Order of Operations: BPEMDAS

Algebra I

Slope-Intercept Form: y = mx + b

m - slope b - y-intercept

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (-1, 4)

y-intercept (0, 2)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{2-4}{0+1}[/tex]Subtract/Add:               [tex]m=\frac{-2}{1}[/tex]Divide:                          [tex]m=-2[/tex]

Step 3: Write linear equation

y = -2x + 2

Nell made a pizza.She cut the pizza into fourths.Then she cut each fourth into four pieces.Nell and her friends ate 6 of the smaller pieces of the pizza. What fraction of the pizza did Nell and her friends NOT eat?

Answers

Answer:

5/8

Step-by-step explanation:

They ate 6/16 which the left is 10/16 is 5/8

JC Construction
1001
Pay to the
order of
Mike Berber
$
Date 11/2/2019
800.00
Dollars
Eight hundred and xx/100
Momo payroll
John Clark
1234567891 987654-1001
Mike received his payroll check from his
job. He still needs to pay the income tax
of 9%. How much is his net income?

Answers

9514 1404 393

Answer:

  $728

Step-by-step explanation:

The tax due is $800 × 0.09 = $72. When that is subtracted from the check, the net is ...

  $800 -72 = $728 . . . net income

can someone help me please. thanks!​

Answers

Is this for a test or something?

x+37+x+67=90
Simplify Equation
2x+104=90
-140 on both sides of equation
2x=-14
Now divide by x
x=-7

Now that you have x you can plug that into both equations, and thus will give you the answer to A.

A=30 degrees

Boadu and Ansah formed a company and agreed that their annual profit will be shared in the ratio 4:5 respectively. If at the end of the year. Ansah received Gh€ 5.000.00 more than boadu how much was boadu shared?

Answers

Answer:

Step-by-step explanation:

The share of Boadu is Gh€ 222,222.22 if Boadu and Ansah formed a company and agreed that their annual profit will be shared in the ratio 4:5 respectively.

What is the ratio?

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

We have:

Boadu and Ansah formed a company and agreed that their annual profit will be shared in the ratio 4:5 respectively.

Let 4x be the share of Boadu and 5x be the share of Ansah

4x + 5x = 5,000,00

9x = 5,000,00

x = 55555.55

The share of Boadu = 4x = 4(55555.55) = 222,222.22

Thus, the share of Boadu is Gh€ 222,222.22 if Boadu and Ansah formed a company and agreed that their annual profit will be shared in the ratio 4:5 respectively.

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pls help!!! look at picture

Answers

a) 45+9h =130
b) Joe will have to work 9 hours to make enough money to buy the AirPods.

Answer:

8.5 hours

Step-by-step explanation:

a). 10h + 45 = 130

b). 10h = 130 - 45 ⇒ h = 8.5 hours

Harvey conducted a probability experiment using a cube numbered 1-6 and a spinner with the show
A
B
C
On each trial of the experiment, the number cube is tossed once and the arrow is spun once.
What is the sample space for the experiment?
Ο Α. ΤΑ
OBIA, 3B, 5C
O O O
OC 1A, 2A, 2B, 3A, 3B, 3C, 4A, 5A, 5B, 6A, 6B, 6C
D. 1A, 1B, 1C, 2A, 2B, 2C, 3A, 3B, 3C, 4A, 4B, 4C, 5A, 5B, 5C, 6A, 6B, 6C
lol

Answers

Answer:

D

Step-by-step explanation:

sample space means all the possible outcomes

If you would like to venture further, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

Bob is having a cookout. He bought 6 liters of seltzer water. How many full 1-pint servings of seltzer can he pour?
(1 L = 2.11 pt)
a. 6
c. 18
b. 12
d. 21

Answers

Answer:

B

Step-by-step explanation:

6 x 2.11 = 12.66

The value of a 1-pint serving of shelter will be 12.66 liters. The correct option is b.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also represent the logical syntax's operation order and other properties.

Given that Bob is having a cookout. He bought 6 litres of seltzer water. The quantity of water for 1 point of serving is,

Quantity = 6 x 2.11

Quantity = 12.66

The quantity will be equal to 12.66 pints.

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Leila was asked to solve the equation 2 over 3 left parenthesis x plus 5 right parenthesis equals 29. The first step she did to solve the equation was 2 over 3 left parenthesis x right parenthesis plus 2 over 3 left parenthesis 5 right parenthesis equals 29. What property did she use in this step?

A.associative

B.commutative

C.distributive

D.reflexive
Which answer is right !

Answers

C. Distributive law.

A number divided by three less two is at most two

Answers

Answer:

6

Step-by-step explanation:

6/3 = 2

Whats the constant of proportinality?

Answers

Answer:

1.5

Step-by-step explanation:

3÷2= 1.5

6÷4=1.5

12÷8= 1.5

MATH HELP ASAP! MARKING BRAINLIST!!!!!! maTH haLLP

Answers

It is a 75% increase

Answer:

75%?? im unsure

Step-by-step explanation:


What is $500= blank+ $600

Answers

Answer:

-100$

Step-by-step explanation:

Adding a negitive number to a positive number is basically subtracting it, and since 600-100 is 500 that means 600 + -100 is also 500.

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