Pls help and show workings
Pls check my other questions if you can!

Pls Help And Show Workings Pls Check My Other Questions If You Can!

Answers

Answer 1

Answer:  Choice A.  y + 5 = -2(x + 2)

================================================

Explanation:

Let's solve the given equation for y so we can find the slope.

3x - 6y = 2

3x = 2+6y

3x-2 = 6y

6y = 3x-2

y = (3x-2)/6

y = (3x/6) - (2/6)

y = (1/2)x - 1/3

The last equation is in y = mx+b form. We see that m = 1/2 is the slope.

Apply the negative reciprocal to go from 1/2 to -2/1 or just -2.

The original slope is 1/2, and the perpendicular slope is -2.

Rule: multiplying any two perpendicular slopes leads to -1 where neither line can be vertical.

Let's plug in m = -2, x1 = -2 and y1 = -5 into point slope form

y - y1 = m(x - x1)

y - (-5) = -2(x - (-2))

y + 5 = -2(x + 2)


Related Questions

what is 8029 times 89810

Answers

Answer:

721084490

Step-by-step explanation:

Find the inverse if f(x)=6(x+7)

Answers

Answer:

y=1/6 x -7

Step-by-step explanation:

it's easier to just substitute y w/x, and vice versa

x=6y+42

x-42=6y

Jonathan bought a box of stamps to start a collection. He has purchased the same number of stamps each week to add to the collection. The graph
shows the number of stamps Jonathan has at the end of each week. How many stamps were in the box Jonathan bought to start his collection?
Assume that the relationship between the two quantities is linear.
A. 216
B. 120
C. 96
D. 12

Answers

Answer:

120

Step-by-step explanation:

its where the graph starts

B. 120 is the answer!!!

1. f(x) = 4x + 3x3
Is this a monomial,Binomial, or Trinomial

Answers

Answer:

It is a monomial

Step-by-step explanation:

4x+3x3=4x+9.

There is one variable the first power so therefore, it is a monomial.

What is the slope of the line?
4x -1 = 3y + 5
Choose 1 answer:

Answers

Answer:

The slope is 4/3

Step-by-step explanation:

Answer:

4/3

Step-by-step explanation:

rearrange into slope-intercept form

3y=4x-6

y=4/3x-2

Please help me with this math problem if you can. You just say yes or no if it’s a square, rectangle, etc. and then give the reason why

Answers

Answer:

Step-by-step explanation:

B) rectangle because the diagonals are congruent

C) Diamond so no it isn't a square or rectangle due to no 90 degree angles

D)Square because the diagonals are perpendicular and congruent

90 coins
Use the original price and the markup to find the retail price.

Original price: $50; Markup: 15%


The retail price is $ ?

Answers

Answer:

50 + 50(.15)

50(1+ .15)

50(1.15)

RP= $57.5

Step-by-step explanation:

a cell phone company charges one $20 for the phone and then $35 a month for phone service another cell phone company charges 55 a month for phone service with a free phone after how many months will the phone services cost the same ​

Answers

After 1 month

20 + 35x = 0 + 55x

find an equation in standard form of a parabola passing through the points below
(1,-1),(5,31),(6,44).

Answers

Answer:

Basic parabola:  y = ax2 + bx + c

We have 3 points we can plug in for (x, y) to create 3 simultaneous equations

(-2, 24):  24 = 4a - 2b + c   {equation 1}

(3, -1):   -1 = 9a + 3b + c    {equation 2}

(-1, 15): 15 = a - b + c        {equation 3}

Solve this system to find the values of a, b, c

Let's first eliminate variable c:

4a - 2b + c = 24   {equation 1}

 a -  b + c = 15    {equation 3}

---------------------  subtract

3a - b = 9

9a + 3b + c = -1    {equation 2}

 a -  b + c = 15    {equation 3}

--------------------  subtract

8a + 4b = -16

We now have two equations with 2 unknowns we can use to find a, b

3a - b = 9         {equation 4}

8a + 4b = -16   {equation 5}

Multiply equation 4 through by 4 and add equations

12a - 4b = 36

8a + 4b = -6

-----------------   add

20a = 30

a = 30/20

a = 3/2

8a + 4b = -6

8(3/2) + 4b = -6

12 + 4b = -6

4b = -6- 12

4b = -18

b = -18/4

b = -9/2

Plug these 2 values into one of the original equations and solve for c

15 = a - b + c        {equation 3}

15 = 3/2 + 9/2 + c

15 = 12/2 + c

15 = 6 + c

c = 15-6

c = 9

y = (3/2)x2 - (9/2)x+ 9

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Step-by-step explanation:

Photo is attached I need to solve for x and y please help me

Answers

hey! y is 100, x is 80.
hope this helped <3

The region R, shown shaded in the diagram, is bounded by four straight lines.
Write down the inequalities that define R.

for some reason i can’t remember how to do this (might be because i’m tired but i’m on my last homework question), can anyone help?

Answers

9514 1404 393

Answer:

1 ≤ y ≤ 30 ≤ x ≤ 2

Step-by-step explanation:

The boundaries in the vertical direction are the horizontal lines ...

  y = 3  (top boundary)

  y = 1  (bottom boundary)

The shaded region is between these lines, so y has values described by ...

  1 ≤ y ≤ 3

__

The boundaries in the horizontal direction are the vertical lines ...

  x = 0  (left boundary)

  x = 2  (right boundary)

The shaded region is between these lines, so x has values ...

  0 ≤ x ≤ 2

These are your inequalities.

_____

If you're plotting this on Desmos, you can use the relation ...

  max(abs(x-1), abs(y-2)) ≤ 1

what is the ratio of y to x

Answers

Answer:

5:2

Step-by-step explanation:

Help pls 6th grade math i will give brainliest

Answers

Answer:

G because y+y+y is the exact same as 3 y

Jamie bought a handbag for 20$, an umbrella for $5.99, and a scarf for $8.50. If the sales tax rate is 7% how much is the sales tax and the total cost of her purchase

Answers

Answer: $36.9043

Step-by-step explanation:

Given that :

Cost of handbag = $20

Cost of umbrella = $5.99

Cost of scarf = $8.50

Sales tax = 7% = 0.07

Sales tax = 0.07 * (20 + 5.99 + 8.50)

Sales tax = 0.07 * 34.49

Sales tax = $2.4143

Total cost of purchase :

Sales tax + cost of items

$2.4143 + $34.49

= $36.9043

Find the domain and range of the function {(1,2) , (2,2) , (3,2) , (4,2)}

Answers

Answer:

Step-by-step explanation:

X-coordinates are domain and y-coordinates are range

Domain= {1,2,3,4}

Range= {2}

Answer:

domain: 1,2,3,4. range:2

Step-by-step explanation:

domain is the input aka the x- values, and the range is the output aka the y-values

Jessica measured the amount of precipitation that fell during a week. She determined that 13 centimeters of rain fell. Actually, though, 12 centimeters of rain fell during that week. To the nearest tenth of a percent, what is the percent error of Jessica's measurement?

Answers

Answer:

8.3%

Step-by-step explanation:

The formula for Percentage error is given as:

|Measured value - True value|/True value × 100

The measured value = 13cm

The true value = 12cm

Hence:

Percentage error = |13 cm - 12cm|/12 cm × 100

= 1/12 × 100

= 8.3%

The percent error of Jessica's measurement is 8.3%

HELP MEEEEEEEEEEEE PLZ

Answers

Answer:

The first 25 prime numbers (all the prime numbers less than 100) are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

3x-2=-29

what is x in this equation?

Answers

-9 is x

mark me brainliest if the answer is correct, thank you in advance :)

What is the equivalent fractions for 3/10?

Answers

Answer:

6/20, 15/50, 9/30, 30/100, 12/40, 18/60....

Step-by-step explanation:

Its just multiplying the fraction by any whole number.

Make sure to do both the numerator and the denominator!

(hope this helps)

A square picture has a border 5 cm
wide. The picture area is 4/9 of the total
area. Find the area of the picture.​

Answers

Answer:

So area of square is: a^2

5^2=25cm^2

4/9 x 25 = 100/9

Area of picture is: 11.11 cm^2

Step-by-step explanation:

The area of the square will be equal to 11.11 square centimetres.


What is an area?

The space covered by the two-dimensional object on a plane is called as an area. The space covered by the square in a two-dimensional plane is called the area of the square.

The square is a quadrilateral having four sides and all the sides of the square are equal to each other.

The the area of the square is calculated as,

a² = 5²=25 cm²

The picture area is 4/9 of the total

area.

4/9 x 25 = 100/9

The area of the picture is: 11.11 cm²

To know more about an area follow

https://brainly.com/question/25092270

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assume that the radius of a cylinder is the same as its height. What would happen to the volume of this cylinder if the radius were doubled and its height was half

Answers

9514 1404 393

Answer:

 volume is doubled

Step-by-step explanation:

The formula for the volume of a cylinder is ...

  V = πr²h

Then the volume of the modified cylinder is ...

  V = π(2r)²(h/2) = π(4r²)h/2 = 2πr²h . . . . . double the previous volume

bac
4. Jim has the following cell phone plan.
• Weekday calls cost 10 cents per minute.
• Weekend calls are free.
• Each text message costs 5 cents.
Each month, Jim talks for m minutes on weekdays and f minutes
on weekends, and sends t texts. Which equation represents
Jim's monthly cell phone bill, C?
A.
C = 0.10m - 0.051
B.
C = 0.10m - 0.5t
nents
C.
C = 0.10m - 0.10f-0.10
D
('= 0.10m - f-0.057

Answers

I think answer should be a.
I think answer should be a. Please give me brainlest let me know if it’s correct or not okay thanks bye

Find the value of X!!!!!!!!

Answers

Try 116, you add up all the numbers and subtract by 180.

A recipe for apple cider cause for 4 cups of apple juice and 3 cups of water what equation can we use to find extra percent of apple juice in the recipe

Answers

Answer:

% Apple juice = [tex]\frac{4}{7}[/tex] × Y × 100.

Step-by-step explanation:

Given:

Ratio of apple juice to water = 4 : 3 = Y i.e 4+ 3 = 7

To find the exact % of apple juice used in  recipe, we use the ratio of juice to water provided, given Y as any amount of apple cider.

∴ equation [tex]\frac{4}{7}[/tex] × Y = amount of apple juice.

for percentage, [tex]\frac{4}{7}[/tex] × Y × 100 = amount of apple juice.

Proof:

In 200ml apple cider, amount of apple juice present

= 4/7 × 200 = 114.2ml of juice

To make upto 00ml cider, add (200-114.2)ml of water.

I hope this was helpful.

Functions f(x) and g(x) are composed to form h(x) = sqrt(x ^ 3- 2) if f(x) = sqrt(x + 2) and g(x) =x^3+a. What is the value of a

Answers

Answer: a = -4

Step-by-step explanation: Function Composition is when two functions f(x) and g(x) result in another function h(x), such that h(x) = f(g(x)). In other words, put the result of one function into the other one.

In this situation,

h(x) = f(g(x))

which means

h(x) = f(x³+a)

h(x) = [tex]\sqrt{x^{3}+a+2}[/tex]

[tex]\sqrt{x^{3}-2} =\sqrt{x^{3}+a+2}[/tex]

Now, to find a, we separate equal terms:

1) Both are squared, so we can "eliminate" the square;

2) x³ = x³;

3) [tex]-2=a+2[/tex]

[tex]a=-4[/tex]

For function composition h(x) = f(g(x)), the value of a is -4.

Answer:-4 or D

Step-by-step explanation:

calculate the rate of change

Answers

The rate of change (or slope) would be 1/2 or 0.5

Suppose that a school of 452 students is having a debate about gun control, and the students were asked to vote. The results show that 67 percent are in favor of banning guns, and 26 percent are against banning guns. The remaining students chose not to voice their opinions. How many students didn't voice their opinions? Round your answer to the nearest whole number?

Answers

Answer: 32

Step-by-step explanation:

Total number of students = 452

Students in favor of banning guns = 67%

Students against banning guns = 26%

Students who didn't voice their opinions = 100% - (67% + 26%) = 100% - 93% = 7%

The number of students who didn't voice their opinions would be:

= 7% × 452

= 0.07 × 452

= 31.64

= 32 to nearest whole number

The image of the point (-8, 3) under a translation is (-5,2). Find the coordinates
of the image of the point (9,9) under the same translation.

Answers

Answer:

IMAGE=OBJECT +TRANSLATION

The coordinates are  (12, 8).

What is translation?

A translation in math moves a shape left or right and/or up or down. The translated shapes look exactly the same size as the original shape, and hence the shapes are congruent to each other. They just have been shifted in one or more directions. Since it is just moving of the shape from one place to other, there is no change in the shape.

Translation is one of the transformations in math. When a shape has been transformed, the original shape is called the preimage and the vertices are usually labeled using uppercase letters (Example: ABCD). The translated shape is called the image and the vertices are labeled using uppercase letters with a “prime” next to each (Example: A′B′C′D′, and is pronounced “A-prime, B-prime, C-prime, D-prime”).

Given:

the point is (-8, 3) whose image point is (-5, 2)

The difference between the coordinates of the image and the coordinates of the original is the same for both points.

 X - (9, 9) = (-5, 2) -(-8, 3)

 X = (-5, 2) -(-8, 3) +(9, 9) = (-5+8+9, 2-3+9)

 X = (12, 8)

Hence, the point is (12, 8)

Learn more about translation here:

https://brainly.com/question/12463306

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-7w²+2w if w=-4 i need the answer please!!!!!!!!!!!!!!

Answers

Answer:

-6,272

Step-by-step explanation:

-7 times -4 equals 28

28 to the power of 2 is 784

2 times -4 equals -8

-8 times 784 equals -6,272

3) Angela has 37 coins in dimes and nickels. She has a total of $3.30.
a) Write the system of 2 linear equations.
b) How many dimes does Angela have?
c) How many nickels does Angela have?

Answers

Answer:

hmmmmm b

Step-by-step explanation:

x + y = 37
5x + 10y = 330
STEP ONE:
Substitute the variables
x = 37 - y
STEP TWO:
Substitute the values
5(37 - y) + 10y = 330
STEP THREE:
Multiply
185 - 5y + 10y = 330
STEP FOUR:
Subtract 185 from both sides
-5y + 10y = 145
STEP FIVE:
Add
5y = 145
STEP SIX:
Divide
y = 29
STEP SEVEN:
Check
x = 37 - 29
x = 8

Therefore, Angela has 8 nickels and 29 dimes.
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