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padilas [110]
3 years ago
6

Which set of numbers could represent the side lengths of a right triangle? A. 0.1, 0.2, 0.3 B. 1.8, 2.4, 3 3, 8, 10 D. 5, 7, 12​

Mathematics
1 answer:
Lelechka [254]3 years ago
5 0

Answer:

B. 1.8, 2.4, 3

Step-by-step explanation:

You can make use of pythagore to prove each of the given options and you'll see that B is the correct answer:

A) \sqrt{0.1^{2}+0.2^{2}}=0.22

B) \sqrt{1.8^{2}+2.4^{2}}=3

C)\sqrt{3^{2}+8^{2}}=8.54

D)\sqrt{5^{2}+7^{2}}=8.6

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the zero of the quadratic polynomial x^2+99x+127 are a both positive b both negative c one +ve one-ve d both equal. please help​
Paha777 [63]

Step-by-step explanation:

By Descrates' Rule of Signs,

x² + 99x + 127 changes sign 0 times.

Hence it has 0 positive roots.

Since the discriminant b² - 4ac is also positive, there are 2 real distinct roots.

Hence both the roots are negative. (B)

7 0
3 years ago
Read 2 more answers
A triangle has side lengths of (1.3f+2.9g)(1.3f+2.9g) centimeters, (1.1f-7.7h)(1.1f−7.7h) centimeters, and (2.3h+1.5g)(2.3h+1.5g
VikaD [51]

Answer:

Perimeter of the triangle = (2.4f+4.4g-5.4h) centimeters.

Step-by-step explanation:

It is given that, a triangle has side lengths of (1.3f+2.9g) cm, (1.1f-7.7h)cm, and (2.3h+1.5g) cm.

We have to find the expression which represents the perimeter, in centimeters, of the triangle.

Perimeter of a triangle = Sum of its all the sides.

Perimeter=(1.3f+2.9g)+(1.1f-7.7h)+(2.3h+1.5g)

On combining like terms, we get

Perimeter=(1.3f+1.1f)+(2.9g+1.5g)+(-7.7h+2.3h)

Perimeter=2.4f+4.4g+(-5.4h)

Perimeter=2.4f+4.4g-5.4h

Therefore, the perimeter of the triangle is (2.4f+4.4g-5.4h) centimeters.

8 0
3 years ago
Sales Price 50 %What was the original price of a washing machine wholesale price is $285?
irakobra [83]

Answer:

$570

Step-by-step explanation:

If 50% of the price is $285, all you have to do is mulipy 285 by 2. This would give you the answer of $570 as the orignal price of the washing machine.

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3 years ago
Paul wants to gift wrap the boxes. He has 1,000.00 square inches of wrapping paper. Does Paul have enough to wrap all three boxe
zhannawk [14.2K]

Answer:

y

Step-by-step explanation:

5 0
3 years ago
Is 'Do you play video games a lot?' a good question? Explain why or why not.
Ugo [173]
No it’s not a good question
4 0
3 years ago
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