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mamaluj [8]
3 years ago
5

Which set of lengths could NOT be the sides of a triangle?A) 9 inches, 12 inches, 21 inches) 9 inches, 11 inches, 12 inches) 12

inches, 14 inches, 16 inches) 16 inches, 18 inches, 25 inches. HURRY help for brainiest
Mathematics
1 answer:
juin [17]3 years ago
4 0

If a, b and c are the lengths of the sides of a triangle then

if a ≤ b ≤ c, then a + b > c.

A) 9, 12, 21

9 + 12 = 21  YES :)

B) 9, 11, 12

9 + 11 = 20 > 12  NOT :(

C) 12, 14, 16

12 + 14 = 26 > 16  NOT :(

D) 16, 18, 25

16 + 18 = 34 > 25  NOT :(

<h3>Answer: A) 9 in, 12 in, 21 in.</h3>
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3 years ago
A snowstorm began on Monday evening. It snowed steadily until 6:00 am on Tuesday morning when the snow was 12 inches deep. Kevin
poizon [28]

Answer:

what is expected at 7am is 15 inches deep snow but what we have is 12 inches deep snow. The equation has failed in its prediction.

Step-by-step explanation:

In this question, we are asked to calculate if the prediction made by an equation modeled is correct.

Firstly let’s look at the equation in question;

y = 3t - 6

where y is the snow depth and t is the number of hours after midnight.

now we are looking at 7am, that’s 7 hours past 12am, meaning 7 hours after midnight.

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