Line m passes through points (-20, 5) and (-4,7). Line n passes through points (-5,5) and (7,4). Are lines m and n perpendicular? Explain.

A. No, the lines are not perpendicular because the product of their slopes does not equal -1.

B. No, the lines are not perpendicular because the product of their slopes equals -1.

C. Yes, the lines are perpendicular because the product of their slopes equals -1.

D. Yes, the lines are perpendicular because the product of their slopes does not equal -1.

Answer:

225

Step-by-step explanation:

The formula is a^2.

Where a is the side

So, 15^2

= 15x15

=225

Answer:

r=-2

Step-by-step explanation:

First, you need to combine like terms so now you have 12r-(-4)=-20. Then you have to subtract -4 to -20 which equals -24 so now you have 12r=-24. Finally, you divide 12 from both sides and you get r=-2

Answer:

r = -2

Step-by-step explanation:

20r + 11r - 19r + 4 = -20

12r + 4 = -20

subtract 4 from both sides of the equation

12r + 4 - 4 = -20 - 4

12r = -24

divide both sides by 12

12r/12 = -24/12

r = -2

Answer:

I wish I've known, but try using Symbo-Lab or Math-Way. They help a lot.

Step-by-step explanation:

Answer:

Okay

Step-by-step explanation:

Answer:

Okay Stay. I will stream it. Nice to meet you. I am Nancy.

Answer:

B, (11/2,-6)

Step-by-step explanation:

to get the midpoint of two endpoints, simply take the average of each corresponding coordinate

midpoint: ((Rx+Sx)/2,(Ry+Sy/2)).

((9+2/2),(-4+-8/2)) = (11/2,-12/2) = (11/2,-6)

the midpoint formula in general is : ((x+x1)/2),(y+y1)/2))

where x1 is the initial or first x coordinate, y1 is the initial or first y coordinate, x is the second, last, or final x coordinate. and y is the second, last, or final y coordinate.

Answer:

yes

Step-by-step explanation:

i did this last week

Answer:

Yes, it is.

Step-by-step explanation:

Answer:

It would be -27

Step-by-step explanation:

Math

Answer:

d

Step-by-step explanation:

Answer:

m∠STU is 20°

Step-by-step explanation:

If a ray bisects an angle, then it divides it into two equal angles in measures and the measure of each one is half the measure of this angle

∵ Ray TV bisects ∠STU

→ That means it divides it into two angles STV and UTV

∴ m∠STV = m∠UTV = [tex]\frac{1}{2}[/tex] m∠STU

∵ m∠STV = ([tex]\frac{1}{4}[/tex]x + 8)°

∴ m∠UTV = (x + 2)°

→ Equate them

∴ x + 2 = [tex]\frac{1}{4}[/tex]x + 8

→ Subtract 2 from both sides

∴ x + 2 - 2 =  [tex]\frac{1}{4}[/tex]x + 8 - 2

∴ x =  [tex]\frac{1}{4}[/tex]x + 6

→ Subtract  [tex]\frac{1}{4}[/tex]x from both sides

∴ x -  [tex]\frac{1}{4}[/tex]x =  [tex]\frac{1}{4}[/tex]x -  [tex]\frac{1}{4}[/tex]x + 6

∴  [tex]\frac{3}{4}[/tex]x = 6

→ Divide both sides by  [tex]\frac{3}{4}[/tex] to find x

∴ x = 8

→ Substitute the value of x in the measure of any given angle

∵ m∠UTV = 8 + 2 = 10°

∵ m∠UTV =  [tex]\frac{1}{2}[/tex] m∠STU

∴ 10° =  [tex]\frac{1}{2}[/tex] m∠STU

→ Multiply both sides by 2

∴ 20° = m∠STU

∴ The measure of angle STU is 20°

Answer:

9.5 gallons

Step-by-step explanation:

12.7 x .75

multiplying by .75 is the easiest way to get 3/4 of something

Answer:

1)     25+7(n-1)

When the above 'n'(hours) is substituted on the equation, it equals up to the right cost.

2)      Given that n represents the no.of bikes, you just plug it in to the equation below.

250+39(n-1)

= 250+39(20-1)

= 250+39*19

= 250+741

= 991

Answer:

4 hours

Step-by-step explanation:

Let the size of  whole wall be x.

Given that

Ralph painted 1/6 of a wall in 2/3 hours

thus, writing it in mathematical form we have,

time taken to pain 1/6 of x = 2/3 hours

=>time taken to pain x/6 wall = 2/3 hours

since, we have taken size as x so to find time to pain x size of wall ,

we divide both side by 6

=>time taken to pain x/6 * 6 wall = 2/3 *6 hours

=> time taken to pain x wall = 4 hours

Thus, It will take 4 hours to paint whole wall

Answer:6 and 2

Step-by-step explanation:

Answer:

The answer is 6 by 2

Step-by-step explanation:

The perimiter is the total of the sides. So, you have to find out the values of the sides of the rectangle using the number 16. Its a rectangle, and the are is 12. So, you can find that it is 6 & 2.

Answer:

(2,6)

Step-by-step explanation:

Up on a graph is adding to the y-value. (x,y)

x-value = 2

y-value = -1

-1 + 7 = 6

(2,6)

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

Answer:

61.5 Feet of Rope

Step-by-step explanation:

Divide the rope length, 861 feet, by 14 people.

Answer:

f^-1(x)=[tex]\frac{x}{2}[/tex]+[tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Answer:

No : 8

Yes : 80

No : 8

Yes : 80

Answer:  

Only the second and the fourth option that is true

Step-by-step explanation:

Answer:

−x+y+7

Step-by-step explanation:

Answer:

-5 degrees C

Step-by-step explanation:

drop indicates minus

12-17=-5

-5 degrees C

Answer:

750

Step-by-step explanation:

Just divide 90 by 0.12 then it gives you 750. If you want to check it you can multiply 750 by 0.12 and it gives you 90. I got 0.12 from 12% since they're the same thing.

Answer:

The answer is 1/8 or C.

Step-by-step explanation:

I know this is correct because I got it right on edge 2021.

**please mark brainliest!**

.The value of cos(2x) is 1/8

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.

Given:

cos x = 3/4

Using identity,

cos 2x = 2 cos^2 (x)-1

=2(3/4*3/4)-1

=2*9/16-1

=9/8-1

=1/8.

Learn more about trigonometry here:

https://brainly.com/question/26719838

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-0.481 :)

Step-by-step explanation:

Answer:

the difference is 6280 m

Step-by-step explanation:

Answer:

B=C/y−Ax/y

Step-by-step explanation:

Answer:

$750

Step-by-step explanation:

We divide 12 months which is the time Alex would like to be a member by 2 which gives us 6. We know 2 months=$125 so if 2×6=12, $125×6 = A 1 year membership.

Answer:

4:30 minutes im thinking

Step-by-step explanation:

The value is  30 minutes. Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression.

Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the expression 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.

The expression that give us the distance that Tory has ride after t minutes is:

D = 880t

Because Tory rides at 880 feet per minute.

At the same way, the distance that Terrence has ride after t minutes is equal to:

D = 1056(t - 5)

Because Terrence rides at 1056 feet per minute and he starts out 5 minutes after Tory

Now, we need to find t when both expressions are equal, so we can formulate the following equation:

[tex]880t=1056(t-5)[/tex]

So, solving for t, we get:

[tex]880t=1056t - 1056.5[/tex]

[tex]880t=1056t - 5280[/tex]

[tex]880t=1056t =-5280[/tex]

[tex]-176t=-5280[/tex]

[tex]t=-5280/-176[/tex]

[tex]t= 30[/tex]

Therefore the answer is 30 minutes

To learn more about  expression refer to:

https://brainly.com/question/25968875

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