10) Write the equation of the line passing through the points (-1, 2) and (3, 4)
A) y = 2x - 2
B) y - 2x - 10
9-x
D) y x -

Answers

Answer 1

Step-by-step explanation:

(-1,2) = x1 , y1(3,4) = x2 , y2

Using two points formula equation AB is :

( y - y1 ) = y2 - y1 / x2 - x1 ( x - x1 )( y - 2 ) = 4 - 2 / 3 - ( -1 ) ( x - ( -1 ) y - 2 = 4 - 2 / 3 + 1 ( x + 1 )y - 2 = 2 / 4 ( x + 1 ) y - 2 = 1 / 2 ( x + 1 )y - 2 = ( x + 1 ) / 2 2( y- 2 )= ( x +1 ) 2y - 4 = x + 1 - 4 - 1 = x - 2y-5 = x - 2yx - 2y +5 = 0 , which is the required equation..

Related Questions

2x² - 2/3 = 5 13
-
Help please

Answers

Answer:

i think the answer is x = 3

or x = -3 or

Step-by-step explanation:


im pretty sure this is the answer.

I think of a number double it, then reduce six. The result is 20. What is the number??

Answers

Answer:

The number is 13

Step-by-step explanation:

the equation:

[tex]2x-6=20[/tex]

The solution.

[tex]2x=20+6[/tex]

[tex]x=\frac{26}{2} =13[/tex]

Hope this helps

Help!! It’s urgent I need help

Answers

7cm²+5cm²=10cm²

14cm+25cm=100cm

39=100

PLEASE HELP ASAP!!!

Answers

Answer:

V = 54π or V = 169.56 units³

Step-by-step explanation:

The volume of a cylinder is given by the formula:

V = πr²h

If we use 3.14 as pi we get this:

V = (3.14)×(3)²×(6)

V = 3.14×9×6

V = 3.14×54

V = 169.56

Since it is volume the units will be units³

So our final answer is 169.56 units³

If you wanted an exact in pi form you would do the same steps but not simplify pi:

V = πr²h

V = π×(3)²×6

V = π×9×6

V = 54π

If f(x) is a linear function such that f(2)= 5 and f(4) = 13, f(x) = ?

A) 3x - 4
B) 4x - 3
C) 4x + 3
D) 1/4x + 9/2

Answers

Answer: you are on your own.

Step-by-step explanation:

The equation of the linear function f(x) is f(x) = 4x - 3. So, the answer is B) 4x - 3.

What are functions?

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,
We can use the two given data points to determine the equation of the linear function f(x) using the slope-intercept form:

f(x) = mx + b

where m is the slope and b is the y-intercept.

First, we can find the slope of the function by using the formula:

m = (y₂ - y₁) / (x₂ - x₁)

where (x₁, y₁) = (2, 5) and (x₂, y₂) = (4, 13)

m = (13 - 5) / (4 - 2) = 4

Now we can use the slope and one of the given points to solve for the y-intercept:

5 = 4(2) + b

b = -3

Therefore, the equation of the linear function f(x) is f(x) = 4x - 3.

Learn more about function here:

brainly.com/question/21145944

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A cylindrical specimen of cold-worked copper has a ductility (%el) of 25%. if its cold-worked radius is 10 mm, what was its radius (in mm) before deformation

Answers

The radius of the  copper specimen before deformation was 8 mm of a cylindrical specimen of cold-worked copper has a ductility (%el) of 25%. if its cold-worked radius is 10 mm

Given information:

Ductility (%el) of cold-worked copper = 25%Cold-worked radius = 10 mm

To find the radius of the copper specimen before deformation, we'll use the formula for calculating the ductility:

Ductility (%el) = ((Final radius - Initial radius) / Initial radius) * 100

Let's denote the initial radius as "r" (in mm). The final radius is 10 mm (after cold-working).

25% = ((10 - r) / r) * 100

Now, solve for "r":

25% = (10 - r) / r

Convert percentage into fraction:

25/100 = (10 - r) / r

Convert fraction into decimal:

0.25 = 10 - r/r

on Cross-multiplication gives:

 0.25r = 10 - r

Add r on both sides gives,

1.25r = 10

On dividing by 1.25 gives:

r = 8 mm

So, the radius of the copper specimen before deformation was 9.75 mm.

Learn more about radius here:

https://brainly.com/question/15090825

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i need help i need help i need help i need help i need help i need help i need help i need help i need help i need help i need help i need help i need help i need help i need help i need help i need help

Answers

Answer: 176 cubic cm

Step-by-step explanation:

Formula for finding volume is l x w x h

The first rectangle on the bottom:

2 x 2 x 8 = 32

The second rectangle next to it:

3 x 6 x 8 = 144

Now add the two values to get the volume of the figure

144 + 32= 176

The first four terms of a geometric sequence are 2, 6, 18 and 54.
What is the 8th term?

Answers

Answer:

take a common ratio which is 3 then from general thterm of G.P whose Gn=G1r^n-1 then G8=2×3^7=2×2187=4374 therefore G8=4374

Allie identifies the coordinates of point D as (3, 7). Explain her error and explain how to correctly identify the ordered pair. hurry

Answers

original correct coordinates of D : (7, 3)

x is the horizontal axis.y is the vertical axis.

Here Allie mistook the x and y axis completely oppositely.

→ First should be the x axis and then the y axis, (x, y)

Answer:

Step-by-step explanation:

Coordinates of a point are usually represented by (x, y) where x describes the horizontal distance from the y-axis and y describes the vertical distance from the x-axis.

Point A

4 units from the y-axis ⇒ x = 4

6 units from the x-axis ⇒ y = 6

A = (4, 6)

Point B

2 units from the y-axis ⇒ x = 2

9 units from the x-axis ⇒ y = 9

B = (2, 9)

Point C

0 units from the y-axis ⇒ x = 0

4 units from the x-axis ⇒ y = 4

C = (0, 4)

Point D

Allie has mixed up the x and y coordinates of D.

7 units from the y-axis ⇒ x = 7

3 units from the x-axis ⇒ y = 3

D = (7, 3)

How do the help do you do this

Answers

Answer:

for the first one you find the slope and y intercept and for the second one get Y by itself so you have to subtract the 2x and put it on the 16 side first so it will look like this Y=-2x+16 then find your answer

Step-by-step explanation:

Hope this helps you

[tex]y=3x+1~~~...(i)\\\\2x+y=16~~~...(ii)\\\\\text{Substitute y= 3x+1 in eq (ii):}\\\\2x+3x+1 = 16\\\\\implies 5x +1 = 16\\\\\implies 5x = 16-1 = 15\\\\\implies x = \dfrac{15}5 = 3\\\\\text{Substitute x = 3 in equation (i):}\\\\y= 3(3) +1 = 9+1 = 10\\\\\text{Hence,}~ (x,y) = (3,10)[/tex]

Tell whether the ratios form a proportion. 14:8 and 28:10

Answers

Answer:

no

Step-by-step explanation:

14:8 = 14/8 = 7/4

28:10 = 28/10 = 14/5

Since the fractions are not equal, it is not a proportion.

Answer: no

If log, 2 = 0.69, then log, 32 =

Answers

Answer:

Step-by-step explanation:

log 2 = 0.69

Prime factorise 32.

32 = 2 * 2 * 2 * 2 *2 = 2⁵

[tex]\boxed{log \ a^{m}=m * log \ a}[/tex]

[tex]log \ 32 = log \ 2^{5}[/tex]

       [tex]= 5*log \ 2\\\\= 5*0.69\\\\= 3.45[/tex]

       

Find the surface area of this figure.

Answers

Answer:

736 in^2

Step-by-step explanation:

To find the surface area of a rectangular prism, the formula is perimeter(of one base)*height + area of two bases.

If you plug in the numbers according to this problem, that is (52*8) + 160(2)

SA = 736


The solid below is made from cubes.
Find its volume.

Answers

Answer:

78.5 cm. cubed

Step-by-step explanation:

Answer:

60 cm cubed

Step-by-step explanation:

Dawn is selling her MP3 player for
3
4
of the original price. The original price for the MP3 player was $40. How much is she selling her MP3 player for?

Answers

If it’s suppose to say 3/4 of the original price, then the answer is $30. Multiply 40 but 75% (which is the same as 3/4) so you get 40x0.75=30
given:

$ 40

to find:

the new price she's selling her MP3 player.

solution:

3/4 of 40 or (3/4)*40

= $30.

so, she is selling her MP3 player for $30.

i am currently struggling to find this algebra 2 answer can anyone help? ill give you whatever

Answers

The answer that will go in the box is : - 1/x+5


Hailey has $9 worth of nickels.how many nickels does hailey have?

Answers

Answer:

180

Step-by-step explanation:

The answer is 180 because 20 nickels make a dollar and you do 20x9 and that equals to 180

Answer:

$180 nickels

Step-by-step explanation:

9x 20= 180

HELLO EVERYONE PLS ANSWER THIS QUESTIONS CAUSE I NEED THEM ASAP. Thank you to whoever answers

Answers

Answer:

1. The Dela Cruz family's water consumption for the month of June is 0000245 m³ land for the month of July, the reading is 0000280 m³. How much water was their water consumption for the month of July?

Answer: 35 cubic metre

________________________________

2. At P8.00 per cubic meter of water, how much was the basic bill for the period of August 2014 to September 2014 if the meter reading on September was 00001450 while the reading August was 00001480?

Answer: PHP 240

________________________________

3. The Duran family usually consumes 230 kwh monthly. They practiced conservation measures to save on the use of electricity. If the previous month's reading is 5680 and the present reading is 5950, what is the number of kwh used? Did they save electricity?

Answer: 270 kwh

________________________________

4.The previous reding of the water meter was 0000345 m. The present reading is 0000395 m³. How many cubic meters water was consumed?

Answer: 0000050 m³

________________________________

5.The previous reading of the electric meter was 2895 kwh and present reading is 3025 kwh. How many kilowatts of electricity was consumed?

Answer: 130

________________________________

Simplify this exponential expression:

(-49) 2/5

I give Brainliest

Answers

Answer:

I thank it is 12 4/5

Step-by-step explanation:

hope this helps if not please let me now and dont worry about  brainliest my main focus is just helping people.

Convert to standard form: y=-7x/2-3

Answers

Answer:

7x + 2y = −6

Step-by-step explanation:

The circumference of a circular ice
skating rink is 408.2 m.
What is the
approximate are of the skating rink? Use
3.14 for Pi. (10 points)

Answers

Answer:

13259.77 meters squared

Step-by-step explanation:

Generally, when finding the circumference of a circle, then formula is c=2*3.14*r (where r is the radius)

Substitute the given values

408.2= 2*3.14*r

R is 65

Now that we know that the radius is 65, the formula for the area of a circle is a=3.14*r^2

Substitute the given values

3.14*65^2

Therefore, the area of the circle is 13266.5 metres squared

PLEASE HELP ME FAST


What number should both sides of the following equation be multiplied by to solve for g?
G/2=4
6
8
2
4

Answers

Answer:

2

Step-by-step explanation:

G/2 = 4

(G/2) × 2 = 4 × 2

G = 8

Answer QUICK! FOR 25 POINTS. First, determine the range of the data without the outlier.
Then, determine the range of the data with the outlier.
Finally, make a conclusion about the effect of an outlier on range.

How Much Did It Rain Last Spring?

A number line labeled number of days each week ranges from 0 to 7 in increments of 1. It is titled how much did it rain last spring? Data are: 0, 1; 3, 3; 4, 3; 5, 3; 6, 2; 7, 1.
Number of Days Each Week
CLEAR CHECK
The range without the outlier is days.
The range with the outlier is days.
When we add an outlier, the range will never , but it may .

Answers

Answer:

12

Step-by-step explanation:

hope it helps

Answer:

Its 12

Step-by-step explanation:


9 ft
5 ft
5
5 ft
12 ft
7 ft
14 ft please help with this Question please I need it for homework

Answers

Answer:

I assume this is area.

5×7=35

12×9= 108

add 35 and 108 = 143

if this isn't area send a comment and I'll give the answer if it's something different

What is the magnitude and direction of RS with tail and head points R(4, -6) and S(-2, 1)?
9.2 units, 49.4° north of west
10.4 units, 40.6° north of west
9.2 units, 49.4° south of east
10.4 units, 40.6° south of east

Answers

Using vector concepts, it is found that the correct option regarding the magnitude and the tail is given by:

9.2 units, 49.4° north of west

How do we find the vector, and what is it's magnitude?

To find them, we subtract the end coordinate by the start coordinate, hence:

RS = S - R = (-2, 1) - (4,-6) = (-6,7).

The magnitude is given by the square root of the sum of the squares of each coordinate, hence:

[tex]|RS| = \sqrt{(-6)^2 + 7^2} = \sqrt{85} = 9.2[/tex]

Considering a xy graph, the vector is decaying, that is, moving north of west, hence the correct option is:

9.2 units, 49.4° north of west

More can be learned about vectors at brainly.com/question/24606590

What is the LCD of 6,4,3,42.?

Answers

Answer:

84 is the smallest number that is evenly divisible by 6, 4, 3, & 42 without a remainder.

84 ÷ 6 = 14

84 ÷ 4 = 21

84 ÷ 3 = 28

84 ÷ 42 = 2

Multiple choice math question. Question #15

Answers

Answer:

that would also be car 1, because in a rotation like that its like you do a spin and come back to the same position, that is a 360 rotation.

Answer:

the answer is car 1

Step-by-step explanation:

Can someone help me with these I really don’t understand no matter what I try

Answers

Answer:

Step-by-step explanation:

This are 3 triangles

One big one, that is divided into 2

 Of the 2 triangles one is smaller than the other

So

inside the big trangle we have:

Small triange (Small side = 8/ Median side = y /large side =12

Median triangle(small side = y/ Median side = x/ Large side = z

             And then the 2 triangles make a big  triangle:

Large triangle (small side=12/ Median side= z/  Large side = 8+x

Write 0.000000207 in scientific notation:

Answers

Answer:207x10^-7

Step-by-step explanation:

Answer:

2.07*10^-7

Step-by-step explanation:



you have a square area rug that needs to be cleaned. if the cleaning company charges $0.25 per square foot for cleaning, how much will it cost you to get your 20 ft by 20 ft area rug cleaned?

Answers

Answer:

It should be $100 to get it cleaned.

I believe the answer is $100

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