There is only one requirement for three sides in order to be considered possible in constructing a triangle. That requirement is
<em>The sum of any of the two sides must be greater than the third side</em>

11 + 15 = 26 > 21
11+ 21 = 33 > 15
15 + 21 = 16 > 11

Since all of the combination fulfill the requirement, yes we could create the triangle with those sides.

8 0

3 years ago

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Erica can run 1/6 of a kilometer her school is 3/4 of a kilometer away from her home at this this speed how long would it take e

shepuryov [24]

Answer:

4 minutes 30 seconds

Step-by-step explanation:

Given:

Erica can run 1/6 of a kilometer in one minute.

Her school is 3/4 of a kilometer away from her home.

Question asked:

How long would it take Erica to run home from school = ?

Solution:

As here distance is given and also speed is given, we will find time taken to run from home to school by using,

$Speed=\frac{Distance}{Time} \\ Time =\frac{Distance}{Speed} \\$

$=\frac{3}{4} \div\frac{1}{6} \\\\ =\frac{3}{4} \times\frac{6}{1} \\\\ =\frac{18}{4} \\ \\ =\frac{9}{2} \\ =4.5 \ minutes$

Therefore, it takes 4 minutes 30 seconds Erica to run home from school.

5 0

3 years ago

If x+y+2=0 then x³+y³+8 =​

If x+y+2=0 then x³+y³+8 =