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quester [9]
3 years ago
5

Dan was trying to get faster at his multiplication tables. This table shows the time it took him to complete each of four tests

containing 50 simple multiplication problems.
Which comparison of the time for each test is correct?
Test 1 < Test 4
Test 2 > Test 4
Test 1 > Test 3
Test 3 < Test 2
Mathematics
1 answer:
STatiana [176]3 years ago
5 0

Answer:Test 1 < Test 4

Step-by-step explanation: Test 1 was easier so it took less time to complete the questions. As the tests continue they get harder meaning they will take more time to answer.

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Answer:

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Step-by-step explanation:

For this case we need a line parallel to the plane x z and yz. And by definition of parallel we see that the intersection between the xz and yz plane is the z axis. And we can take the following unitary vector to construct the parametric equations:

u= (u_x, u_y, u_z)= (0,0,1)

Or any factor of u but for simplicity let's take the unitary vector.

Then the parametric equations are given by:

x= P_x + u_x t

y= P_y + u_y t

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Where the point given P=(2,3,4)= (P_x , P_y, P_z)

And then since we have everything we can replace like this:

x= P_x + u_x t 2+ 0*t = 2

y= P_y + u_y t= 3+ 0*t = 3

z= P_z + u_z t = 4+ 1t = 4+t

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Answer:

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