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3 years ago

4(x+3)-4=8(1/2x+1) What is x

Mathematics

2 answers:

butalik [34]3 years ago

8 0

Answer:

x=x Infinitely many solutions

Step-by-step explanation:

4(x+3)-4=8(1/2x+1)

4x+12-4=4x+8

4x+8=4x+8

-8 -8

4x=4x

x=x

Infinitely many solutions?

DanielleElmas [232]3 years ago

5 0

Answer:

i think the answer is x=4

hope it helps

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An algorithm takes 0.5 seconds to run on an input of size 100. How long will it take to run on an input of size 1000 if the algo

dexar [7]

Answer:

linear: 5s

quadratic: 50s

log-linear: 0.75 s

cubic: 500s

Step-by-step explanation:

Let $t_1,t_2$ be the running time associated with the input of sizes $s_1,s_2$

If the running time is linear

$t_2 = t_1\frac{s_2}{s_1} = 0.5*\frac{1000}{100} = 0.5*10 = 5s$

If the running time is quadratic

$t_2 = t_1\left(\frac{s_2}{s_1}\right)^2 = 0.5*\left(\frac{1000}{100}\right)^2 = 0.5*10^2 = 50s$

If the running time is log-linear

$t_2 = t_1\frac{log(s_2)}{log(s_1)} = 0.5*\frac{log(1000)}{log(100)} = 0.5*1.5 = 0.75s$

If the running time is cubic:

$t_2 = t_1\left(\frac{s_2}{s_1}\right)^3 = 0.5*\left(\frac{1000}{100}\right)^3 = 0.5*10^3 = 500s$

6 0

3 years ago

Which rule describes the translation PQR --> P'Q'R'?

Ksenya-84 [330]

The "Pre Image" is the image that we started with, so the pink triangle.
The "Image" is the image that we ended with, so the blue triangle.

To determine how far we went from the pre image to the image, we can focus on one point, let's say point "P".

The pre image coordinates for point "P" are 2, 3.
The image coordinates for point "P'" are -1, 0.

To get from x value 2 to x value -3, we subtracted 3.
To get from y value 3 to y value 0, we subtracted 3.

So, our rule for this translation would be A, (x, y) ----> (x-3, y-3).

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3 years ago

Find the value of 9 - [42 - (3 + 2)].<br><br> 6<br> -2<br> 8

AlexFokin [52]

Answer: -2

Step-by-step explanation:

3+2= 5

4^2-5= 11

9-11= -2

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3 years ago

Read 2 more answers