Which set of integers is not a Pythagorean triple?
A.
9, 40, 41
B.
11, 60, 61
C.
15, 18, 21
D.
20, 21, 29

C.15, 18, 21 is not a Pythagorean triple.

Expert answered|RetreatReality|Points 10|

Question|Asked by Mabelangelo

Asked 3/14/2014 10:48:53 AM

Updated 3/14/2014 9:43:18 PM

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Between what two consecutive integers does 379 lie?

Question|Asked by Mabelangelo

Not Answered

Updated 3/17/2014 8:07:04 PM

1 Answer/Comment

The equation for the chemical reaction shown is not balanced. What number should replace the question mark to balance this equation?
2KBr + Pb(NO3)2 2KNO3+ PbBr2

Question|Asked by Mabelangelo

Not Answered

Updated 3/17/2014 8:00:30 PM

1 Answer/Comment

A square window has a side length of 40 inches.
What is the approximate length of the diagonal of the window?

Question|Asked by Mabelangelo

Expert Answered

Updated 4/22/2014 11:13:06 AM

1 Answer/Comment

Pythagora's Theorem:

Diagonal² = 2*side²;

= 2*40*40;

= 3200;

Diagonal = sqrt(3200);

= 56.57 inches;

The approximate length of the diagonal of the window is 56.57 inches.

Diagonal² = 2*side²;

= 2*40*40;

= 3200;

Diagonal = sqrt(3200);

= 56.57 inches;

The approximate length of the diagonal of the window is 56.57 inches.

Added 4/22/2014 11:13:06 AM

This answer has been confirmed as correct and helpful.

Confirmed by debnjerry [4/22/2014 11:15:12 AM]

A banner is in the shape of a 30°–60°–90° triangle. The shorter leg has a length of 30 inches.
What is the approximate length of the longer leg?
A.
15 inches
B.
42 inches
C.
52 inches
D.
60 inches

Question|Asked by Mabelangelo

Not Answered

Updated 3/21/2014 1:02:16 AM

1 Answer/Comment

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