1. What is a function? Give an example of a function and explain why it is a function

2. For the equation y = 7x - 2, what is the rate of change? Explain what that rate of change means.

Answers

Answer 1

Answer:

a function is :a relation from the set of inputs to a set of possible outputs where each input is related o exactly one output

or a function is: a function is an equation that has only one answer for y for every x


Related Questions

Because |a + bi| is equal to a distance,
|a + bi| will always be a _____
number.

Answers

Answer: it is positive

Answer:

positive real

Step-by-step explanation:

Which point lies on the graph of y=3/4x-2?
A. (-10, -10)
O B. (-8, 8)
C. (-6, 6)
D: (-4,-4)

Answers

A because if you look at the graph and you graph it it comes up to (-10 -10)

A printer prints 28 photos in 8 minutes. How many minutes does it take to print 21 more photos?

Answers

Answer:

For 49 photos it takes 14 minutes.

Step-by-step explanation:

28 photos take 8 minutes

(21 + 28) 49 photos take x minutes

x = (49 * 8)/28

x = 14

You deposit $572.34 into a account that pays 4.5% interest.How much interest do you earn after 60 months
Plz show work

Answers

Step-by-step explanation:

assuming it's 4.5% a year

572.34/100= 5.72

5.72×4.5=25.74 (per year)

60/12=5(years)

5×25.74= 128.7

128.7+572.34=701.04

You earn 128.7 dollars in interest and have 701.04 dollars at the end of 6 months

Solve the inequality - 2x + 1 > 2x - 11

Answers

Answer:

x<3

Step-by-step explanation:

Let us move all the x values to one side and the numerical values to the other:

1>2x+2x-11

1+11>2x+2x

12>4x

3>x or x<3

I hope this helps! :)

Answer:

Answer is B in edge for I 2x-1 l >2x-11

Step-by-step explanation:

just did assignment

HELPPPPPPP PLEASSEEE

Answers

Waiting overnight

You should never wait overnight before making a big purchase if there is only one item left. Teens have cited ʺfriendsʺ as the strongest influence over their purchase decisions.

Answer:

the first one

Step-by-step explanation:

because my mom shop and she do not NEVER go to sleep it will mess up your purachase

Chase is making a cake for his daughter's birthday. The normal recipe calls for 8 ounces of butter and 16 ounces of sugar. Chase then decides to make a slightly smaller cake and only use 6 ounces of butter. How many ounces of sugar will he need in his smaller cake? give your answer explain how you found it.

Answers

Notice that the ounces for sugar is the double of butter so if you have 6 of butter you’ll need 12 of sugar

Tom paid $0.60 per pound for tomatoes to sell at his produce store. He added a 33% markup. What price did he charge his customers for the tomatoes? Round to the nearest cent if needed.

Answers

Tom is charging $0.8 per pound to his customers.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

Given that,

Tom paid $0.60 per pound for tomatoes to sell at his produce store.

So,

Cost of tomatoes = $0.60/pound

Now,

33% of 0.60 ⇒

33 × 60 /100 = $0.198

So final price ⇒

0.60 + 0.198 = 0.798

By rounding the nearest tenth

⇒ $0.8/pound.

Hence "Tom is charging $0.8 per pound to his customers".

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I need to finish this table please let me know ASAP I would appreciate it

Answers

hi i just want to be friends but  x - y

-5 - 2

-4 - x

-3 - y that is all i know

Suppose there are 50 possible dancers. How many trios may be formed, assuming the order within a trio does not matter

Answers

Answer:

19600 trios may be formed.

Step-by-step explanation:

Since the order of the trios do not matter, we use the combinations formula to solve this question.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

In this question:

Groups of three(Trios) from a set of 50. So

[tex]C_{50,3} = \frac{50!}{3!(50-3)!} = 19600[/tex]

19600 trios may be formed.

9) Write an equation in point-slope form for the given point and slope:
Point: (-8, 3)
Slope: 6

Answers

Answer:

I believe its y=6x+51

Step-by-step explanation:

Find the Area of the figure below, composed of a rectangle and a semicircle. Round to the nearest tenths place.

Please see the picture

Help

Answers

Answer:

286.97

Step-by-step explanation:

find the area of the rectangle first

14*15=210

Next

Find the area of a circle

πr^2=a

the radius of the circle is half the height of the rectangle

π*(7*7)=a

a=153.94

Now

Divide the area by two

153.94/2=76.97

Now add the two areas

76.97+210

Answer:

Area of the figure= area of the rectangle+ area of the semicircle

=(15×14)+(1/2)π(7)²=210+77=287 square unit

287 square unit is the right answer.

Remember:--- area of the rectangle

=(length×breadth)

and area of the semicircle=π(radius)²/2

What is the meaning of the term statistical inference? A/An ---Select--- about the value of a ---Select--- based on information from the corresponding ---Select--- and the associated

Answers

complete question:

What is the meaning of the term statistical inference?

What is the meaning of the term statistical inference?A/An ---Select--- assumption conclusion observation about the value of a ---Select--- population parameter sample statistic population statistic sample parameter based on information from the corresponding ---Select--- population statistic sample statistic population parameter sample parameter and the associated ---Select--- probability distributions assumptions observations inferences .

Answer:

1. conclusion

2. population parameter

3. sample statistic

4. probability distribution

Step-by-step explanation:

I have filled in the correct answers into the question as we have below. they are in bold letters

Statistical inference is a conclusion about the value of a population parameter based on information from the corresponding sample statistic and the associated probability distribution.

Statistical inference can be defined as the act of using data analysis to get the properties of an underlying probability distribution.

6 + 2y = 8 so y = what

Answers

Answer:

y=1

Step-by-step explanation:

hope this helps

6+2y=8=y

We move all terms to the left:

6+2y-(8)=0

We add all the numbers together, and all the variables

2y-2=0

We move all terms containing y to the left, all other terms to the right

2y=2

y=2/2

y=1

   

   

Which real-world problem correctly involves dividing a decimal by a decimal?

a
Michael has 162.4 feet of wood to make birdhouses. If each birdhouse uses 2 feet of wood, how many birdhouses can he make? 81 birdhouses

b
Michael has 162 feet of wood to make birdhouses. If each birdhouse uses 2 feet of wood, how many birdhouses can he make? 81 birdhouses

c
Michael has 162 feet of wood to make birdhouses. If each birdhouse uses 1.4 feet of wood, how many birdhouses can he make? 115 birdhouses

d
Michael has 162.4 feet of wood to make birdhouses. If each birdhouse uses 1.4 feet of wood, how many birdhouses can he make? 116 birdhouses

Answers

Answer:

b

Step-by-step explanation:

What is the equation for a line

Answers

Answer:

y = mx + b

Step-by-step explanation:

y represents the dependent variable (value you are getting).

m represents the slope of the line.

x represents the independent variable (what you are changing).

b represents the y-intercept, or the y value when x is zero.

Ans: These lines are written in the form y = mx + b, where m is the slope and b is the y-intercept.

15% of the students in school eat hot lunch. If 60
have hot lunch, how many students attend the
school

Answers

Answer:

400 students

Step-by-step explanation:

So 15 percent is 60 students

make an equation

0.15x=60

X stands for the total amount fo students and multiply that 0.15 becuase we know ti equals 60 and finding X will solve both problems

that’ll give you 400 students

if you check

400*0.15=60

So its correct

Is a rectangle a parallelogram?​

Answers

Answer:

yes

explanation:

a rectangle is a parallelogram because its pairs of opposite sides are parallel.

6(a+4)=72
Help please

Answers

Answer:

a = 8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

6(a+4)=72

(6)(a)+(6)(4)=72(Distribute)

6a+24=72

Step 2: Subtract 24 from both sides.

6a+24−24=72−24

6a=48

Step 3: Divide both sides by 6.

6a

6

=

48

6

Answer:

a=8

Step-by-step explanation:

6(a+4)=72

(6)(a)+(6)(4)=72(Distribute)

6a+24=72

Step 2: Subtract 24 from both sides.

6a+24−24=72−24

6a=48

Step 3: Divide both sides by 6.

6a

6

=

48

6

The area of the parallelogram below is ____ square meters. A parallelogram with height labeled with 8 meters. The top horizontal side is labeled 6 meters. The base of the left triangle formed by the height is 2 meters.

Answers

Answer: answer is 96

Step-by-step explanation: you have to multiply  8 6 and 2 together to get your answer

Answer:

96

Step-by-step explanation:

Please help me with this math question

Answers

Answer:?

Step-by-step explanation: math mathematics.

Find the equation of the line.
Use exact numbers.
100+
y
8+
7+
6+
9 8 7 6 5 4 3 2
2 3 4 5 6 7 8 9
-3
-4
-5
-6+
-7
-8

Answers

Answer:

The equation of the line is:

[tex]y = 3x+3[/tex]

The graph is also attached.

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

m is the slopeb is the y-intercept

From the straight line on the graph, taking two points

(0, 3)(-1, 0)

Finding the slope between (0, 3) and (-1, 0)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

               =  [0 - 3] / [-1 - 0]

               = -3 / -1  

               = 3

Thus, the slope of the line = m = 3

We know that the value of y-intercept can be determined by setting x = 0, and determining the corresponding value of y.

From the graph, it is clear

at x = 0, y = 3

Thus, the y-intercept b = 3

Now, substituting slope m = 3 and y-intercept b = 3 in the slope-intercept form

y = mx+b

y = 3x+3

Therefore, the equation of the line is:

[tex]y = 3x+3[/tex]

The graph is also attached.

A triangle is shown on the right. What is the measure of the missing angle of the triangle? (Please leave a small explanation)

Answers

Answer:

it's answer is D. 33°

Step-by-step explanation:

Let the unknown angle be x Then.

x + 100° + 47° = 180° [ being sum of angles of triangle ]

x + 147° = 180°

x = 180° - 147°

x = 33°

What is 900 divided by 30

Answers

Answer:

30

Step-by-step explanation:

The required, 900 divided by 30 is 30.

When dividing 900 by 30, we follow a similar process. We start by writing 900 as the dividend and 30 as the divisor. Then, we divide 9 (the first digit of 900) by 3 (the first digit of 30), resulting in a quotient of 3. We write this quotient above the line. Next, we multiply the divisor (30) by the quotient (3), giving us 90. Subtracting 90 from 900 leaves us with 810. We bring down the next digit (0), resulting in 8100. We divide 81 by 3, getting a quotient of 27.

Thus, 900 divided by 30
= 900/30 = 90/3
= 30

Therefore, 900 divided by 30 is 30.

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(_×4) + _ = 71

First slot: 1-8
Second slot: 1-8
Exponents: ², ³, ⁴​

Answers

To find out what the missing number is you need to first guessing number let’s say two 2×4 = 6 6+6 does not equal 71

Karen screams at 13 employees for not putting enough cheese in her nachos, then she screams at 17 more employees for getting her drink wrong how many employees did Karen scream in total?

A. 30
B. 21
C. 45

Answers

Answer:

the answer is 30 employees that got scream

Answer:

30 employees

Step-by-step explanation:

17+13=30 so therefore she screamed at 30 employees

Help me out here on this question please.

Answers

Answer:

b

Step-by-step explanation:

Answer:

<

Step-by-step explanation:

because the 6 is in the hundreth place

Alan buys a book that is on sale.

He writes the expression 0.7b to show the percent of the original cost of the book, b, that he pays.
He rewrites the expression as b−0.3b.
Which statement explains why Alan rewrites the expression?




He receives another discount on the book.


He buys another book with a different discount.


He wants to show by what percent the book was discounted.


He wants to show what percent of the original price he paid.

Answers

Answer:

D

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

The perimeter of a
rectangle is 18 cm. The
longer side is 6 cm. How
long is the shorter side?

Answers

Answer: 3

Step-by-step explanation:

Since 6 + 6 is 12 so 3 + 3 is 6 and 12 + 6 is 18 and you multiply each side by two

Answer:

i have made it above picture see it

plz help
On a game show, a contestant randomly chooses a chip from a bag that contains numbers and strikes. The theoretical probability of choosing a strike is 3/10. The bag contains 9 strikes. How many chips are in the bag?

Answers

Answer:

30

Step-by-step explanation:

If the probability of choosing a strike is 3/10, that means that from the total items available 3 out of 10 are strikes, now, if there are 9 strikes total, this is the equation representing such result:

(3/10)(totalChips) = 9

if we solve for totalChips we have:

3(totalChips) = 9*10 = 90

totalChips = 90/3 = 30

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