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2 years ago

What is the probability of rolling a number less than 4 on a number cube labeled 1 through 6?

2 answers:

4 0

No matter the number of times you rolled the dice, the probability of getting a number is always 1/6. But here we can choose 4 numbers ( 1 to 4) hence the probability P( 1 or 2 or 3 or 4) = 4/6 2/3 = 0.6667 = 66.67% (A)

torisob [31]2 years ago

4 0

The answer is B. 1/3.

Hope this helps!!
~Kiwi

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The area of a rectangle is 27 m”, and the length of the rectangle is 3 m less than twice the width. Find the dimensions of the r

elena-s [515]

Answer:

$L = 6$ --- Length

$W = 4.5$ --- Width

Step-by-step explanation:

Given

Let: $L = Length; W = Width$

$Area = 27m^2$

$L = 2W- 3m$

Required

Find the dimensions of the rectangle

Area (A) is calculated as:

$A = L * W$

This gives:

$27 = (2W - 3) * W$

Open bracket

$27 = 2W^2 - 3W$

Express as a quadratic function

$2W^2 - 3W - 27 = 0$

Expand

$2W^2 + 6W - 9W - 27 = 0$

Factorize:

$2W(W + 3) - 9(W + 3) = 0$

$(2W - 9)(W + 3) = 0$

This gives:

$2W - 9 = 0\ or\ W + 3 = 0$

$2W = 9 \ or\ W = -3$

Width can not be negative.

So:

$2W = 9$

$W = 4.5$

Recall that:

$L = 2W- 3m$

$L = 2 * 4.5 - 3$

$L = 6$

7 0

2 years ago

It's #25 guys. Show your work!

Ronch [10]

$y+8 = \frac{1}{2}(x-7)$ is equivalent to <span> $y-(-8) = \frac{1}{2}(x-7)$

That is in the form </span><span> $y-y_{1} = m(x-x_{1})$ which is point slope form

In this case,

m = 1/2 is the slope
(x1,y1) = (7,-8) is the point the line goes through</span>

6 0

3 years ago

This equation shows how the number of pies Larry can bake is related to the number of additional cups of sugar he buys.

Anna71 [15]

Im pretty sure its 3

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2 years ago

An automobile travels 2340km and uses 180 L of gasoline. Find its fuel consumption in kilometers per litre

Sonbull [250]

13 kilometers per liter

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