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AlexFokin [52]
3 years ago
13

Consider proving the following.

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
3 0

Answer: 2

Step-by-step explanation:

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Amy has 1/2 hour to do 3 chores. She plans to spend the same fraction of an hour on each chore. She wants to use the number line
Natali5045456 [20]
Point A would be zero; Point B, the end of the 1/2-hour time interval, would be 1/2 (representing 1/2 hour).  Then Amy needs to subdivide the interval A to B into three equal time intervals and to determine the length of each of these subintervals.

I would begin with 1/2 and divide that by 3:  

1
--
2
====
   3
   --
    1

Inverting the fraction in the denom. and multiplying, we get

1      1       1
-- * ---- = -----
2      3        6

So Amy will spend 1/6 th of an hour, or 10 minutes, on each chore.

Note that 3 times 1/6 comes out to 1/2 (hour), which is were we started.

5 0
3 years ago
Sophie has been given two segments and the measure of an angle between them. She is trying to construct a congruent triangle. Sh
Nookie1986 [14]
Answer: A) Copy the angle

When you are constructing triangles when given a Side, Angle, and Side (SAS), you should first copy one of the side. 

Then, you should copy the angle that is between the sides. (That is the answer to your question)

Finally, you will copy the last side. Then, you will have congruent triangles.
5 0
4 years ago
Read 2 more answers
Select the correct answer from each drop-down menu.
maxonik [38]

Answer:

(b)\\\tan x, \cot x

Step-by-step explanation:

Given

trigonometric function is

\dfrac{\cos 2x-\cos 4x}{\sin 2x+\sin 4x}

Applying trigonometric formulae

\Rightarrow \cos C-\cos D=-\sin (\dfrac{C+D}{2})\sin (\dfrac{C-D}{2})\\\\\Rightarrow \sin C+\sin D=\sin (\dfrac{C+D}{2})\cos (\dfrac{C-D}{2})

\Rightarrow \dfrac{\cos 2x-\cos 4x}{\sin 2x+\sin 4x}=\dfrac{2\sin 3x\cdot \sin x}{2\sin 3x\cdot \cos x}\\\\\Rightarrow \dfrac{\sin x}{\cos x}=\tan x

option (b) is correct

\Rightarrow \dfrac{\cos 2x+\cos 4x}{\sin 2x-\sin 4x}=\dfrac{2\cos 3x\cdot \cos x}{2\cos 3x\cdot \sin (-x)}=-\cot x

6 0
3 years ago
Not sure how to reflect it, <br> Help please?
ryzh [129]
My choice to reflect this would be over the y axis. That would be (-1,3) for the bottom left hand corner on the original image.
6 0
4 years ago
Read 2 more answers
Help me please??? I'm not sure how to solve this
creativ13 [48]
Greater=19
Smaller=3
Just use substitution
7 0
4 years ago
Read 2 more answers
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