{HELP ASAP }WILL GIVE 50+ POINTS AND BRAINLIEST
which statements are correct steps in finding the linear equation of the line that passes through the points -1,7 and 2,4 using the point slope form method. select all that apply

Answers

Answer 1

Answer:

y = - x + 6

Step-by-step explanation:

[tex] point \: slope: y - y_{1} = m(x - x_{1})[/tex]

as y is the y coordinate of the final point , y1 is the y coordinate of the initial point, m is the slope or gradient of the line, x is the x coordinate of the final point, and x1 is the x coordinate of the initial point.

given (-1,7) and (2,4). 7 = y1, 4 = y, -1 = x1, 2 = x.

when substituted into the equation the unknown variable is the slope which we are solving for.

y-y1=m(x-x1) ; y = 4, y1 = 7, x = 2, x1 = -1

(given)

4-7 = m(2--1)

(substitution property of equality)

-3 = m(2--1)

(subtraction property of equality)

-3 = m(3)

(subtraction property of equality)

-3 = 3m

(multiplication property)

-1 = m.

(division property of equality)

m = -1

(symmetric property of equality)

_____________________________

once m is solved you just need the initial values to solve for the actual equation.

y - y1 = m (x - x1) ; y1 = 7, m = -1, x1 = -1

(given)

y - 7 = -1 (x - -1)

(substitution property of equality)

y - 7 = -1 (x + 1)

(subtraction property if equality)

y - 7 = -x - 1

(distributive property of equality)

y = -x - 1 + 7

(addition property of equality)

y = -x + 6

(addition property of equality)

Answer 2

Answer:

get from (4,1) to (2,9) go up 8 and over 2 left (-2) - (4 - 2, 1 + 8), do this again (2 - 2, 9+8) and end up at (0,17) which is the y how do you change 7x+3y=3 into slope intercept form.

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Related Questions

[7(2) - 4] + [9+ 8(4)]

Answers

Answer:

51

Step-by-step explanation:

[7(2) - 4] + [ 9 + 8(4)]

open brackets

[14 - 4] + [ 9 + 32]

[10] + [41]

10 + 41

= 51

Preform the indicated operation 1 1/3 times 3 3/4

Please help!

Answers

the answer is A.Sorry if i am incorrect

20*35*x = 7626.9923/2

Answers

Answer:

X = ejpp formula

Step-by-step explanation:

Ellie must mix 6 tablespoons of plant food for every 2 gallons of water. If she has 6 gallons of water,how much plant food should she use?

Answers

Answer: 18 tablespoons

Explanation: for the water, you have to multiply the 2 gallons by 3 if you want to get 6 gallons. then, you also multiply 6 tablespoons by 3 to get 18 tablespoons. you can see the ratio 2:6 is the same as the ratio 6:18, so you know it’s correct!

4. Billy Breath jogged 40 miles in 16 minutes. What is his rate of speed?​

Answers

Answer:

2.5 mins

Step-by-step explanation:

Step 1:

40 : 16       Ratio

Step 2:

40 ÷ 16      Divide

Answer:

2.5

Hope This Helps :)

Answer:

i think the answer is 150 mi/h

Step-by-step explanation:

solve
0=40+3x
show work please

Answers

0=40+3x
0=120x
Calculate the product
0=120x
Swap sides of the equation
120x=0
Divide both sides
X=0

-5/12 • 8/13= What is the sum?

Answers

Answer:

-10/39

Step-by-step explanation:

Graphs of the following equations are straight lines except :
A. 3x+2y=8
B. y=x/2-5
C. x=4y
D. y=x^2+3

Answers

Answer:

D

Step-by-step explanation:

The graph of the equations are straight lines except : [tex]y=x^2+3[/tex]

What is graph of quadratic equation?

The graph of a quadratic function is called a parabola and has a curved shape. One of the main points of a parabola is its vertex. It is the highest or the lowest point on its graph.

According to the question

Graphs of the following equations  :

A. 3x+2y=8  

This is a straight line graph as it variables are linear and after plotting graph this can be seen .

Points

(0,4) (2,1) ....

B. y=[tex]\frac{x}{2}-5[/tex]

This is a straight line graph as it variables are linear and after plotting graph this can be seen .

Points

(0,-5) (2,-4) ....

C. x=4y  

This is a straight line graph as it variables are linear and after plotting graph this can be seen .

Points

(0,0) (1,4) ....

D. [tex]y=x^2+3[/tex]

This is a quadratic equation , therefore its graph will be a parabola .By plotting graph can be observed.

Points

(-1,4)(0,3) (1,4)......

Hence, the graph of the equations are straight lines except : [tex]y=x^2+3[/tex]

To know more about graph of a quadratic function here:

https://brainly.com/question/9834848

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Given the points (–1,3) and (2,–3), what's the slope of the line?

Answers

Answer: -2

Step-by-step explanation:

rise/run= y2-y1/x2-x1

An organization has raised $4800 for a remodeling project. This is 60% of their goal.
What is their fundraising goal

Answers

Answer:

$8000

Step-by-step explanation:

1. Work out 1% of the overall value:

4800= 60%

4800/60= 1%

80= 1%

2. Use this to work out 100%:

80 x 100= 100%

8000= 100%

3. Put this back into the context of the question:

Fundraising goal= $8000

A running track in the shape of an oval is shown. The ends of the track form semicircles.

A running track is shown. The left and right edges of the track are identical curves. The top and bottom edges of the track are straight lines. The track has width 54 m and length of one straight edge 120 m.

What is the perimeter of the inside of the track? (π = 3.14)

409.56 m
480.00 m
579.12 m
616.80 m

Answers

Answer:

409.56 m

Step by step explanation:

Answer:

The answer is A.) 409.56 m Step-by-step explanation: so... yea hope this helps! :)

128.5 divided by 4.5

Answers

Answer:

the answer is 28.555555 and so on

Step-by-step explanation:

if you want it rounded then-

to the nearest hole number it would be 29

to the tenth it would be 28.6

to the hundredth its 28.56

The division of 128.5 by 4.5 is 28.555555.. It is a repeating number.

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 denote the logical syntax's operation order and other properties.

Given that the two numbers are 128.5 and 5. The division of the number 128.5 by 4.5 will be done as,

if you want it rounded then-

To the nearest whole number, it would be 29

To the tenth, it would be 28.6

To the hundredth, it's 28.56

Hence the division of the number will be 28.5555...

To know more about an expression follow

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Can someone help me please

Answers

Answer:5

Step-by-step explanation:

yes

helpp meeeeeee pleasereee

Answers

Answer:

take 6 divide by 11 and one :)

Step-by-step explanation:

yes this anser hope you like :)

ax+by=c solve for y plz help hurryyyyy

Answers

I believe that the answer for y is...

y= -ax+c/b

The alpha level is the set of analysis of the data. Identify the boundaries that separate the extreme samples from the samples that are more obviously consistent with the null hypothesis. Assume the null hypothesis is nondirectional, meaning that the critical region is split across both tails of the distribution.

The z-score boundaries at an alpha level α = .05 are:_________

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given the question :

The z-score boundaries at an alpha level α = .05 are:

When critical region is split across both tails of the distribution.

Then our alpha level is also divided by two and the Zscore of the probability obtained is looked up on the z table.

α = .05

Since critical region is split into 2, alpha will be divided by two to obtain the probability value ;

α/2 = 0.05 / 2

α/2 = 0.025

Zα/2 = Z.025

From the z table, probability of 0.025 corresponds to a Zscore of - 1.96 ( negative tail)

Also, (1 - 0.025) = 0.975 corresponds to a Zscore of - 1.96 ( positive tail)

Z.025 = ±1.96

Solve equation 5 = 4(b-3)

Answers

Answer:

[tex] b = \dfrac{17}{4} [/tex]

Step-by-step explanation:

5 = 4(b-3)

Distribute the 4 on the right side.

5 = 4b - 12

Add 12 to both sides.

17 = 4b

Divide both sides by 4.

[tex] \dfrac{17}{4} = b [/tex]

Answer: [tex] b = \dfrac{17}{4} [/tex]

Which expression is the simplified form of −10+3x−x−7x+5x+7+2x

Answers

Answer:

2x - 3

I hope this helps!

Simplify: −2s − 9 + 7 − 5r use s = 3 and r =

Answers

Answer:

-2s - 9 + 7 - 5r

Step-by-step explanation:

Add -9 and -7.

-2s - 2 - 5r

Move -2.

-2s - 5r - 2

Reorder -2s and -5r.

-5r - 2s - 2

I hope this helps.

if you could, feel free to mark me Brainliest it would be much appreciated :D

Write in words: 970,001​

Answers

Answer:

nine hundred, seventy thousand and one

Step-by-step explanation:

Step-by-step explanation:

Nine Hundred,Seventy Thousand and One

The auxiliary bookstore in the student center has one checkout counter where one employee operates the cash register. Customers arrive at a rate of 24 per hour following a Poisson distribution and service times are exponentially distributed, with a mean rate of 30 customers per hour. The average purchase per customer is $48. The bookstore considers adding another employee to assist the present operator. There are several options to utilize this additional staff. One is to enable more customers to be served in less time, thus increasing the service rate from 30 customers per hour to 40 customers per hour. Alternatively, the bookstore could redesign to add a second cash register, one has its own line. Assume existing customers split evenly between the two cash registers and each has her/his own line, just like most grocery stores. Finally, the bookstore can use this additional staff as a second register but unlike option 2, there is only one combined line shared by these two registers (like most of the bank tellers). Assume the hourly rate for each employee is $20, regardless what job do they perform. Assume that each customer is only waiting for up to 1 minute to be served, or would renege (i.e., leave the store unpurchased). Which option should the bookstore adopt to minimize the total cost?

Answers

Answer and explanation:

Find attached

Both customers' arrival and service times follow exponential distribution. We have calculated the essential operating characteristics of this queuing system

How are proportional quantities described by equivalent ratios?

Answers

Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin. ... Describe situations in which opposite quantities combine to make 0.

Proportional quantities are described by equivalent ratios as shown below

[tex]\frac{p_1}{q_1} = \frac{p_2}{q_2}[/tex]

Let the two proportional quantities be p and q

If p and q are proportional, then [tex]p \alpha q[/tex]

Introducing a proportionality constant (k)

[tex]p = kq\\\\k = \frac{p}{q}[/tex]

Since the two quantities are proportional, the ratio of  initial values will be equal to the ratio of their final values.

That is [tex]\frac{p_1}{q_1} = \frac{p_2}{q_2}[/tex]

Therefore, proportional quantities are described by equivalent ratios as shown below

[tex]\frac{p_1}{q_1} = \frac{p_2}{q_2}[/tex]

Learn more here: https://brainly.com/question/18671639

What’s the y intercept ?

Answers

Answer:

(0,3)

Step-by-step explanation:

A driving range charges $4 to rent a golf club plus $2.75 for every bucket of golf balls you hit. Write an equation
that shows the total cost c hitting b buckets of golf balls.

Answers

Answer:

4+2.75b=c

Step-by-step explanation:

The price of 4 is already set and so we don't know how many buckets of golf balls are used so we put the variable after it.

To solve 38 = 6x - 16, you would subtract 16 and then divide by 6.
true
or
false

Answers

Answer:

true to some extent

Step-by-step explanation:

you would subtract 16 from both sides of the = sign. 38-16 is 22 and you divide that by 6 and you get x

Two Parallel lines are intersected by a transversal /1 and /2 are alternate exterior angles. The measure of /1 is (5x - 16) the measure of /2 is (4x-2) what is the measure of each angle?
A.m/1=m/2=46
B.m/1=94 and m/2=86
C.m/1=m/2=54
D.m/1=m/2=70

Answers

Answer:

C. m/1=m/2=54

Step-by-step explanation:

these two angles are equal hence:

5x-16=4x-2=-16+2 =-14

4x-5x=-x

-x=-14=x=14

then you substitute the value of 'x' with 14

therefore:(5×14-16)=54

(4×14-2)=54

m/1=m/2=54

Which is the value of this expression when x = negative 2 and y = negative 3?

10 x cubed y squared

Answers

Answer:

-720

Step-by-step explanation:

Took the quiz and got it right, the dude above me is wrong

Please make me the Brainliest!!!

se the drawing tool(s) to form the correct answer on the provided graph.
A barrel in Jim's yard contains 60 gallons of water. Water leaks out of the barrel at a rate of 1 gallon every 10 minutes.

Create and graph the solution set of the equation for the gallons of water, y, remaining in the barrel in terms of the number of minutes elapsed, x

Answers

Answer:

it will take 10 hours for the barrel to empty out

Step-by-step explanation:

Read the following scenarios. For each scenario you need to decide which of the following four methods is appropriate.
A. One sample t test
B. Paired samples t test
C. Independent samples t test
D. One-way analysis of variance (ANOVA)
1. A shareholders' group suspects that the mean tenure of corporate chief executive officers (CEO) is significantly greater than the 5 years that CEO supporters claim. The group has hired a statistician who is using information on tenure of the last retired CEO in a sample of 30 corporations to test this claim.
2. All employees in a firm have recently received professional development training that is designed to improve their productivity. A manager wants to know whether or not the post-training productivity differs significantly across low-, medium-, and high-education employees.
3. A computer manufacturer has designed twenty-three prototype microcomputer central processing unit chips, and is using a sample of 506 computers (22 computers carrying each prototype) to evaluate whether the mean processing time differs significantly across the twenty-three prototypes.
4. In a blind taste experiment a group of potential customers were asked to rate the taste of two different coffee brands on a scale of 0 to 10. The experimenter wants to know whether or not on average the ratings differ for the brands.
5. A bank manager wants to know whether or not the average waiting time for bank customers is significantly different between two local branches of that bank.
6. A national auto dealers association claims that the mean price of a used car is $9,987. A used car dealership manager located in the City of Baltimore wants to test this claim using a sample of 45 cars currently parked at the dealership.
7. A computer manufacturer has discovered a method to improve performance of existing CPU chips by coating those chips with a fine layer of a special patented chemical. The manufacturer wants to test the effectiveness of this method in two groups of similar computers. The CPU chips in only one group have received a coating of the special chemical.
8. A computer manufacturer has discovered a method to improve performance of existing CPU chips by coating those chips with a fine layer of a special patented chemical. The manufacturer wants to test the effectiveness of this method in a sample of 54 computers by observing CPU performance before and after applying the coating.
9. A local landscaping business owner wants to test the hypothesis that the mean tree planting time differs significantly from 2 hours for her employees.
10. An educator wants to test the hypothesis that average SAT score in the population is the same in Belgium, Denmark, and Netherlands.
11. Using random state-level household samples, a social scientist wants to know whether or not the mean household size is the same across 50 states in the U.S.
12. It has been claimed that average nursing salaries in Milwaukee, Wisconsin are lower than those in Pittsburgh, Pennsylvania. A medical professional wants to test this claim using a sample of salaries from the two cities.
13. A student government representative at a mid-sized East Coast university wants to test the mean difference in GPA at the beginning and end of the freshman year using a sample of 89 undergraduate students.
14. All employees in a firm have recently received professional development training that is designed to improve their productivity. The training provider claims that such training increases employee productivity by 10%. A firm manager has obtained estimates of change in productivity for 32 employees who received the training, and wants to test the training provider's claim.

Answers

Just Use Socratic bro.

the average person takes about 30,000 breaths per day. express this number as a single digit integer times a power of 10

Answers

Answer:

3 * 10^4

Step-by-step explanation:

Answer:

3*10^4

Step-by-step explanation:

Given

Number 30000

Express in scientific notation

30000 =3*10000= 3*10^4
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