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4 years ago

Solve 3x^2 = 6x– 3 by graphing.

Mathematics

1 answer:

denpristay [2]4 years ago

7 0

Answer:

x= square root of 2x-1

Step-by-step explanation:

First you move the 3 to the right side of the equation and since it was multiplied; you have to divide it making it 2x-1.

Then, you have to square it so you can get x by itself and since 2x and -1 do not have a square root you just leave it.

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vodomira [7]

Answer:

see below

Step-by-step explanation:

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3 years ago

Marie 2,480 windows Marie washed 4 times as many windows as Elizabeth Elizabeth washed the same number of windows each day over

vlada-n [284]

Answer:

Elizabeth washes 99 windows each day.

Step-by-step explanation:

Given:

Total number of windows (N) = 2480

Marie washes windows = 4 times Elizabeth washes.

Elizabeth washes same number of windows for 5 days.

Let the number of windows washed by Elizabeth each day = 'x'.

Therefore, over the 5 days, the windows washed by Elizabeth = $5x$

Now, as per question:

Marie washes windows = 4 times Elizabeth washes.

So, number of windows washed by Marie = $4(5x)=20x$

Now, total number of windows = Windows washed by Marie + Windows washed by Elizabeth

So,

$2480=20x+5x\\\\2480=25x\\\\x=\frac{2480}{25}\approx99$

Therefore, Elizabeth washes 99 windows each day.

7 0

3 years ago

What is 6.9-(-5)+4.1

vazorg [7]

Answer:

Step-by-step explanation:

6.9+5+4.1

11+5

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3 years ago

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3 years ago

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Sample of 3 items is selected at random from a box containing 20 items of which 4 aredefective. find the expected number of defe

azamat

That's 54 I think. 20x3=60-4=54

6 0

4 years ago