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3 years ago

Justify whether the solution makes sense.

Mathematics

2 answers:

frutty [35]3 years ago

8 0

✎ let's answer it 

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it's ↓

( identical triangle)

<h3> by </h3><h2>#galadohannadivine29</h2>

Zigmanuir [339]3 years ago

5 0

Answer:

They are identical triangles.

Step-by-step explanation:

Angles in a triangle add up to 180 degrees.

The triangle with 39 and 90 has a missing angle of 51 degrees, and the triangle with 51 and 90 vice versa.

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Which of the following are ordered pairs for the equation y = 1/3x + 1?

andreyandreev [35.5K]

Answer:

The second answer choice; (0,1) (3,2) (6,3) is your answer.

Step-by-step explanation:

I don't know how to explain this but here's a picture of the line; y=1/3x+1

I hope this helps! :)

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3 years ago

When three or more numbers are added, the sum is the same regardless of the grouping. Which property is this Associative, Commut

lakkis [162]

Associative property. Hope this helps!

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2 years ago

the two angles measuring (30 + 2 a)degree and (125 -a) degree supplementary to each other, then find the value of a.

Zinaida [17]

Answer:

The value of a is 25

Step-by-step explanation:

When two angles are supplementary, they add up to 180 degrees

Mathematically,

(30 + 2a) + (125-a) = 180

30 + 2a + 125 - a = 180

a + 155 = 180

a = 180-155

a = 25 degrees

6 0

3 years ago

A 20 foot rope is cut so that one piece is 5 feet longer than the other. Find the length of each piece

hammer [34]

Let one piece of the rope be x

Let the other piece of rope be x + 5

These two pieces put together will make 20 feet.

So we say:

x + (x +5) = 20

What is x? We expand the equation.

x + x + 5 = 20

x + x = 20 - 5

2x = 15

x = 7.5

The shorter piece is therefore 7.5 feet.

The longer piece is 7.5 + 5 = 12.5 feet.

5 0

4 years ago

What is X in the equation 15x-10(-4)=10

mina [271]

Answer:

x = -2

Steps:

10x-10(-4)=10

15x+10*4=10

15x+40=10

15x+40-40=10-40

15x=-30

$\frac{15x}{15} = \frac{-30}{15}$

8 0

3 years ago