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2 years ago

Help on theese 2 for brainly tell me why we need to regroup

Mathematics

1 answer:

svlad2 [7]2 years ago

4 0

Answer:

You will need to regroup because 2/3 is less than 3/4.

Step-by-step explanation:

DON'T IGNORE THIS PART!!!

Let's find the common denominator for 10 2/3 and 6 3/4.

$10 \frac{2}{3} - 6 \frac{3}{4}$

What is the least common multiple for 3 and 4? Well, let's make a list that would help!

Multiples of 3: 3, 6, 9, <u>12</u>, 15, 18, 21...

Multiples of 4: 4, 8, <u>12</u>, 16, 20, 24, 28...

What is the first multiple that 3 and 4 matches with? It is 12!

Now, let's convert the fractions.

$10 \frac{2}{3} - 6 \frac{3}{4}$ = $10 \frac{8}{12} - 6 \frac{9}{12}$

Woah! How do you subtract 9/12 from 8/12? Don't worry--there is a solution to this problem! And--it is... regrouping!

You have to add a whole to 8/12. This means that you have to add 8/12 + 12/12, which is 20/12. And--you will have to subtract one from ten.

$9 \frac{20}{12} - 6 \frac{9}{12}$

Now, that should be way easier to subtract!

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Based on the side lengths given (a, b, and o, which triangles are right triangles?

Cloud [144]

Answer:

2 & 3

Step-by-step explanation:

Pythagorean Theorem is $a^2+b^2=c^2$ .

If the values given in each option satisfy the theorem, the sides will make a right triangle.

<h3>For Option One:</h3>

$4^2+6^2=8^2\\=> 4^2=16\\=> 6^2=36\\=>8^2 =64\\16+36=64\\\boxed{52\neq 64}$

The sides would not make a right triangle.

<h3>For Option Two:</h3>

$6^2+8^2=10^2\\=> 6^2 = 36\\=> 8^2=64\\=> 10^2=100\\36+64=100\\\boxed{100=100}$

The sides would make a right triangle.

<h3>For Option Three:</h3>

$5^2+6^2=\sqrt{61}^2\\ => 5^2=25\\=>6^2=36\\=>\sqrt{61}^2=61\\ 25+36=61\\\boxed {61=61}$

The sides would make a right triangle.

<h3>For Option Four:</h3>

$6^2+9^2=12^2\\=> 6^2=36\\=>9^2=81\\=>12^2=144\\36+81=144\\\boxed{117\neq 144}$

The sides would not make a right triangle.

The correct answer should be options two and three.

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2 years ago

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suter [353]

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How to solve this problem for my pre calculous class.

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harina [27]

Answer:

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Step-by-step explanation:

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Ede4ka [16]

Answer:

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Step-by-step explanation:

then

The graphic is A) or whom is be more or equal to one in the graphic. Right side of the graphic.

Best regards

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2 years ago

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