2 years ago

Are lines GH and G'H' perpendicular? Why or why not?

Mathematics

1 answer:

Vikentia [17]2 years ago

4 0

Answer:

B. Yes, their slopes are negative reciprocals.

Step-by-step explanation:

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How can I do this exercise? <img src="https://tex.z-dn.net/?f=%5Cfrac%7B-2%7D%7B12%7D%20%3D%20%5Cfrac%7Bx%20%2B%201%7D%7Bx%20%2B

matrenka [14]

Answer:

-8/7 =x

Step-by-step explanation:

-2 x+1

----- = -----------

12 x+2

Using cross products

-2 (x+2) = 12 (x+1)

Distribute

-2x -4 = 12x+12

Add 2x to each side

-2x+2x -4 = 12x+2x+12

-4 = 14x +12

Subtract 12 from each side

-4-12 = 14x

-16 = 14x

Divide each side by 14

-16/14 =14x/14

-8/7 =x

3 0

2 years ago

A circle has a circumference of 28.26cm. what is the area of the circle? show work please

earnstyle [38]

-circumference is equal to pi×diameter, area is equal to pi×radius^2
-28.26÷3.14=9, 9÷2=4.5, 4.5×4.5=20.25, and 20.25×3.14=63.585
-rounded to the nearest hundredth, the answer is 63.59

8 0

3 years ago

Whats the answer for 4 and 5? Please I need the answers ASAP.

olga nikolaevna [1]

Answer:

4. 6/15

Step-by-step explanation:

5. 5/3 is the an answer

8 0

2 years ago

How can you show that two objects are proportional with a table?

vredina [299]

So this is our table:

-----------------
x-values | a b c d e f |
-----------------
y-values | g h i j k l |
-----------------

You can know that the values in the table are proportional if:

$\frac{a}{g}=\frac{b}{h} =\frac{c}{i}=\frac{d}{j}=\frac{e}{k}=\frac{f}{l}$

Hope that helps :)

5 0

2 years ago

AHHHHHHHHH help me eddd

vaieri [72.5K]

Answer:

you add your number and then you subtract it so all the other steps are are going to be the exact same

5 0

2 years ago

Read 2 more answers