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2 years ago

Can you add a negative and positive fraction or do you have to subtract it?

Mathematics

1 answer:

KengaRu [80]2 years ago

6 0

Answer:

Step-by-step explanation:

You have to subtract it because you add a negative and positive fraction together you can add a positive with a positive or vice versa but you can add n and p together so you have to subtract.

Hope it helps

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Which set of side lengths is a Pythagorean triple??? Please help

kodGreya [7K]

Answer:

C) 9,40,41

Step-by-step explanation:

Pythagorean triple is when a²+b²=c²

A) 1,3,10

1+9=100 - incorrect

B) 4,5,9

16+25=81- incorrect

C) 9,40,41

81+1600= 1681- correct

D) 16,30,44

256+900= 1936- incorrect

4 0

2 years ago

Can you help I’ll mark brainliest

Marta_Voda [28]

Answer:

$7\sqrt{3}$

Step-by-step explanation:

Since this is a 30-60-90 triangle, we know that the sides have the following characteristic:

The side opposite to 30 degree angle: n

The side opposite to 60 degree angle: $n\sqrt{3}$

The side opposite to 90 degree angle: 2n

Since we know that 7 is opposite to 30-degree, and x is opposite to 60 degree, than we know that x = $7\sqrt{3}$

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2 years ago

Find 3 solutions to the equation y = −4x −1

agasfer [191]

Answer:

(0,-1)

(1,-5)

(2,-9)

Step-by-step explanation:

y = −4x −1

Let x=0

y = 0-1 = -1 (0,-1)

Let x = 1

y = -4(1) -1 = -4-1 =-5 (1,-5)

Let x = 2

y = -4(2) -1 = -8-1 =-9 (2,-9)

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2 years ago

Plssss Help!!! Will mark brainiest!!

marshall27 [118]

Answer:

the last one

Step-by-step explanation:

5 0

2 years ago

Geometry pls help thanks

sveta [45]

Answer:

x=30

Step-by-step explanation:

it is an equilateral triangle, so all angles are the same. each angle is 60 degrees. 60/2 is 30, so 30 degrees is the answer.

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2 years ago