Mathematics, 24.10.2019 03:00 getsic

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1.) 6 friends go offline, 5 remain
6 + 5 = 11
11 friends were playing initially

2.) 1 Hour = 60 mins
60 - 35 = 25
Trevor has 25 minutes left

Answer from: bria58490

Hello there!~

#4
6 friends go offline and 5 friends still online. They ask us to find how many friends was there?

What we need to do is take the amount of friends that went offline and add it to the amount of friends who's still online.

So:

6 + 5 = 11
11 of them were gaming online initially.

#5

The duration of the test is 1 hour. We know that 1 hour equals to 60 minutes.

Trevor used 35 minutes for the first section but he still has the second section to take. They want us to find how much time he has left.

All we have to do is 60 - 35 = 25

Trevor has 25 minutes to complete the second section.

I hope this helps!

Answer from: Quest

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

Which construction does the image below demonstrate? 1. an equilateral triangle circumscribed abou

Answer from: Quest

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

= $\sqrt{(9-6)^{2} +(12-6)^{2} } \\=\sqrt(45)=3\sqrt(5)$

side j'k'=distance between j' and k'

= $\sqrt{(3-2)^{2} +(2-4)^{2} } \\=sqrt(5)$

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

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