Mathematics High School

Determine which of the lines, if any, are parallel or perpendicular.

Line a: 4y - 12x = 20
Line b: 3y = -x + 2
Linec: y = 3x - 1

Answers

Answer 1

Step-by-step explanation:

ma=3,mb=_1/3, mc=3a and c are parallelb aree perpendicular to a and c

Related Questions

Can anyone help me with this please I really need help with this rq .

Answers

Answer:

Step-by-step explanation:

g(x) = ax - b

-76 = 27a - b

-79 = 28a - b           Subtract

3 = -a                       Multiply both sides by  -1

a = -3

g(x) = -3x - b

-85 = -3*30 - b

-85 = - 90 - b          Add 90 to both sides

90-85 = - b             Combine

5 = - b                     Multiply both sides by - 1

-5 = b

g(x) = -3x - b

g(x) = -3x - (-5)

g(x) = - 3x + 5

13 cm
5 cm
7 cm
12 cm
Find the surface area.

Answers

Answer: 37cm

Step-by-step explanation: 5cm + 13cm + 7cm + 12cm = 37cm

Answer:

270 cm^2

Step-by-step explanation:

(13x7)+(12x7)+(5x7)+2(12x5/2)

= 91 + 84 + 35 + 60 =270 cm^2

can someone help me please, this is so stressful:/

Answers

X is 2 because 10 x 2 equals 20 -3 equals 17

Answer:

x=2

Step-by-step explanation:

To solve for x, you want to isolate it. To do this, move terms that are NOT x and use the opposite operation to get it to the other side.

10x - 3 = 17

(Add 3 to both sides)

10x = 20

Now isolate x (since 10x is really 10 * x, you divide)

10x=20

x=2

This is how you would solve to get the solution.

Hope this helps :D

Solve for x.
2x-30/X+60
90
50

Ο
70
20

Answers

Answer:

It's 50

Step-by-step explanation:

Hope it helped youuh

Answer:

x = 50

Step-by-step explanation:

2x-30+x+60 = 180

3x+30 = 180

3x = 150

x = 50

vanillaor chocolate?? xD lol >:>

Answers

Answer:

Chocolate for sure XD

Step-by-step explanation:

Hope this helps!! lol

Is 666 = 37 positive or negative?

Answers

Answer: Positive (but not sure)

Step-by-step explanation: Are there answers to the questions is so i could help more but if correct hope i helped :)

What are corresponding angles

Answers

Answer:

the angles which occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.

If 4 gallons of milk cost $16.24, how much would 7 gallon of milk cost

Answers

Answer:

$28.42

Step-by-step explanation:

First let's calculate the cost per gallon.

We can do this by simply dividing the cost of 4 gallons by 4

1 gallon of milk cost 16.24/4 = 4.06

We want to find the cost of 7 gallons.

We can easily do this by multiplying the cost of one gallon by 7

7 gallons of milk cost 7 * 4.06 = $28.42

solve pls brainliest

Answers

Answer:

Mixed Number: 5 [tex]\frac{7}{10}[/tex]

Improper Fraction:[tex]\frac{57}{10}[/tex]

Step-by-step explanation:

A mixed number is when you express the decimal as a fraction, 0.7 is the same as [tex]\frac{7}{10}[/tex], so 5[tex]\frac{7}{10}[/tex] is your answer.

An improper fraction is a fraction where the numerator is bigger than the denominator, to do this you multipy the whole number 5, which can be written as [tex]\frac{5}{1}[/tex], by [tex]\frac{10}{10}[/tex].

[tex]\frac{5}{1}[/tex]·[tex]\frac{10}{10}[/tex]=[tex]\frac{50}{10}[/tex]

Then add 0.7, or [tex]\frac{7}{10}[/tex].

[tex]\frac{50}{10}[/tex]+[tex]\frac{7}{10}[/tex]=[tex]\frac{57}{10}[/tex]

Would you please mark my answer brainliest if it helped you? :D

PLEASE HELP GIVING BRAINLIEST! :)

Answers

Answer:

10

Step-by-step explanation:

3a+b - 4

Let a =3 and b = 5

3(3) +5 -4

Multiply

9+5-4

Add and subtract

14-4

10

Answer:

10

Step-by-step explanation:

a = 3b = 5

= 3a + b - 4

= 3(3) + 5 - 4

= (3 . 3) + 5 - 4

= 9 + 5 - 4

= 9 + 1

= 10

25% of 80
Question: find the percent of the number

Other if you could also do: 30% of 70, 91% of 60, 40% of 85, 250% of 18

Answers

Answer:

20%

Step-by-step explanation:

1. 20%

2. 21%

3. 54.6%

4. 34%

5. 45%

write the equation of the line that passes through the points (3,1) and (-2,6) in slope intercept form

Answers

Answer:

y = - x + 4

Step-by-step explanation:

First find slope:

6-1/-2-3 = 5/-5 = -1

Then plug one point and slope into point slope form: y-y1 = k (x-x1)

Plug in (3, 1) and slope -1 --> y-1 = -1(x-3)

Simplify --> y - 1 = - x + 4

Then add 1 to both sides --> y = -x + 4

The hypotenuse of a certain number is 5 units and one leg is 3 units long. Find the area of the triangle

Answers

Answer:

Area: 6

Step-by-step explanation:

It's a five, four, three triangle. Multiply 3 by 4, then divide the answer by 2 to find the area.

Using the discriminate. Find the number of real solutions. 2^2+7x-15=0

Answers

Answer:

= 11/7

Step-by-step explanation:

7.0g divided by 5.6g/cm cubed​

Answers

Answer:

Should be 1.25cm

Step-by-step explanation:

Percent of 51,300-45,800

Answers

Answer: the percent is 112.01. please mark brainliest

Step-by-step explanation:

Given f(x)=2x+1 and g(x)=7-x. Find g(f(x)).

Answers

Answer:

f(g(x)) = 2(7 - x) + 1

Step-by-step explanation:

f(x) = 2x + 1

g(x) = 7 - x

The question in the picture itself says to find f(g(x)) so i'll find that instead

f(g(x)) = 2(7 - x) + 1

f(g(x)) = 14 - 2x + 1

f(g(x)) = -2x + 15

PLEASE PLEASE HELP ME OUT

Answers

Answer:

It is 77 degrees

Step-by-step explanation:

Since line M and N are parralell, the angles are the same

Answer:

X=77

HOPE THIS HELPS

- Todo ❤️

Step-by-step explanation:

Alternative angle thingies are equal

Factor. Check by multiplying.
x²- 6x

Answers

[tex] {x}^{2} \times - 6x \\ = - 6 {x}^{3} [/tex]

- BRAINLIEST answerer

find the measure of KH

Answers

Answer:

i dont know

Step-by-step explanation:

What is the equation of the line in slope-intercept form?

Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer:

[tex]y=-\frac{1}{4}x\\[/tex]

Step-by-step explanation:

The slope is calculated by "up ÷ across".

= -1 ÷ 4

= [tex]-\frac{1}{4}[/tex]

The y-intercept is just 0 (because the line meets at the y axis at 0).

So, using [tex]y=mx+b[/tex] (where m = slope and b = y-intercept),

[tex]y=-\frac{1}{4}x+0[/tex]

but the '+0' is unnecessary so we just say [tex]y=-\frac{1}{4}x[/tex]

Please help 20 points

Answers

Answer: y = 42°

Step-by-step explanation: You can find the second angle in that triangle because it is next to another 90° angle. Then you add 90 and 48 and subtract that number from 180 and you get 42. Hope this helps!

Answer:

42

pls mark brainliest if correct

evaluate the following using identity ( part 2 )
4. (0.4a + 1/4 b) (0.4a - 1/4b)
5. (x + 1/y) ( x-1/y)
6. (2/3x + 3/11y) (2/3x - 3/11y)​

Answers

Answer:

refer the attachment pls

PLS HELP, WILL GIVE BRAINLIEST!

Answers

Answer: The answer to this math question about translating this given expression to an English phrase is C). 3 more than the product of 7 and 4.

Step-by-step explanation: The keywords are times and the sum, which tells us that the 2 operations are multiplication and addition, let's translate this math expression into an English phrase by looking at the 2 operation signs "×" and "+" in order to find the words to translate the given math expression into an English phrase that looks in the equation form and an English phrase like this:

7×4+3 = 3 more than the product of 7 and 4.

I hope that my full given answer with my full given step-by-step explanation is very helpful to your own math question about translating this given expression to an English phrase, please mark me as Brainliest after her answer was been reported by someone and got deleted by The Brainly Moderator, take care, always be safe, and have a great rest of the day! :D  

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

Write a question that has the quotient of -3/8

Answers

-6/16 hope this helps

Find the slope of a line parallel to each given line.
a
-7x = 3y + 12

Answers

Answer:

[tex] - \frac{7}{3} [/tex]

Step-by-step explanation:

Y = mX + c

, since ( -7X = 3y + 12)

, then -3y = 7x + 12

, then y=

[tex] - \frac{7}{3} x - 4[/tex]

Answer:

-7/3

Step-by-step explanation:-7x divided by 12 plus -3y would give you -7/3

What is the length of each side of this equilateral triangle?
A) 42
B) 30
C) 15
D) 12

Answers

Answer:

C I think hope you help this my answer

Answer:

15

Step-by-step explanation:

no explanation

is 10/110 an irrational or rational number

Answers

Hello there!

10/110 is a rational number because it can be expressed in the form p/q (where p is the numerator and q is the denominator)

Therefore, 10/110 is a rational number.

Hope this helps you!

~Just a felicitous girlie

#HaveAGreatDay

[tex]SilentNature :)[/tex]

Diedre’s sister works as a lifeguard. Last summer she earned $14 per hour. She earned a total of $5,180 working
as a lifeguard last summer. How many hours did Diedre’s sister work as a lifeguard last summer?

Answers

Answer:

370 hours.

Step-by-step explanation:

Divide $5,180/14 to get your answer of the hours she worked.

Answer:

370 hours is how many she worked

14×370= 5,180

hope this helps

Simple interest
A. cannot be paid by credit unions.
B. cannot be expressed as a percentage.
C. is another name for compound interest.
D. is paid only on the original principal.

Answers

Step-by-step explanation:

option D is correct according to my understanding

hope this answer helps you dear! take care

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