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3 years ago

How do you find whether a pair of lines are parallel, perpendicular?

Mathematics

1 answer:

bazaltina [42]3 years ago

5 0

Answer:

If two lines are parallel they have the same slope, if they are perpendicular they have opposite slopes.

Step-by-step explanation:

Example of parallel lines: y=3x+10 & y=3x-4

Example of perpendicular lines: y=2x-9 & y=-1/2x+1

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Really easy math problem 5pts!!!

kogti [31]

You're given two angles and the side not between them are congruent, so the AAS theorem applies. (2nd selection)

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2 years ago

Read 2 more answers

Devisibility rules for 3, 6, and 9

fenix001 [56]

Answer:

★ Divisibility rule for 3 -

If the sum of all the digits divisible by 3 then the number is divisible by 3.

Here, we take an example for better understanding -

Example 1 - 3525

Add up the digits - 3 + 5 + 2 + 5

→ 15

As, 15 is divisible by 3. So, 3525 is a factor of 3.

★ Divisibility rule for 6 -

A number is to be divisible by 6 , if the number is also divisible by 2 and 3.

Example 2 - 132

Add up the digits = 1 + 3 + 2 = 6

As, 6 is divisible by 2 and it's also divisible by 3. Then, 132 is a factor of 6.

★ Divisibility rule for 9 -

If the sum of all the digits is divisible by 9 then the number is divisible by 9. Just like we'd in 3.

Example 3 - 1052

Add up the digits - 10 + 5 + 2 = 17

As, 17 is not divisible by 9. So, 1052 is also not divisible by 9.

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3 years ago

5. To rent a van, a moving company charges a daily fee plus a fee per mile.

Setler [38]

C = 10d+ 45 ? Hope this helps? Let me know if it’s right or not.

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2 years ago

Anne-marienhas saved 9 dollars for a new coat that is 1/6 as much money as she needs how much does the coat cost

Tatiana [17]

Answer:

Cost of the coat = $54

Step-by-step explanation:

Given:

She saved = $ 9

To Find:

Cost of the coat = ?

Solution:

Let the price of coat be x

She saved $9

and according to given condition it is 1/6 of the total money she needs for buying coat

by this we have

$\frac{1}{6}*x = 9$

Multiplying both sides by 6

$\frac{1}{6}*x*6 = 9*6$

it becomes

x = 9*6

x = $54

As x is the amount she needs

Cost of the coat = $54

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3 years ago

A student answered 12 out of 15 questions on an exam correctly.

den301095 [7]

Answer:

1. 4/5

2. 80%

Step-by-step explanation:

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3 years ago