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2 years ago

Brian rolls a fair dice 12 times. How many times would Brian expect to roll a number greater than 4?

Mathematics

1 answer:

igor_vitrenko [27]2 years ago

5 0

Answer:

Numbers greater than 4 are 5 and 6

So we have 2 numbers out of 6 numbers so the probability is equal to 2/6 = 1/3

And 1/3 of 12 is equal to 4

So Brian expect to roll a number greater than 4,

Four times.

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Write an equation for a line that is parallel to 2x+5y=15 and passes through the point (-10, 3)

Lyrx [107]

Answer:

The equation of the line is,

$y = - \frac{2}{5} x - 1$

Step-by-step explanation:

First, you have to write it in a form of y = mx + b :

$2x + 5y = 15$

$5y = 15 - 2x$

$y = 3 - \frac{2}{5} x$

$y = - \frac{2}{3} x + 5$

When both lines are parallel to each other, they will have to same gradient value. So the equation of the line is y = (-2/5)x + b. Next, you have to find the value of b by substutituting (-10,3) into the equation :

$y = - \frac{ 2}{5}x + b$

$let \: x = - 10,y = 3$

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$3 = 4 + b$

$3 - 4 = b$

$b = - 1$

3 0

3 years ago

Read 2 more answers

Select the correct answer from each drop-down menu.Complete the following proof.Given: WXYZ is a parallelogram with diagonals XZ

ohaa [14]

GIVEN:

We are given a parallelogram WXYZ with diagonals WY and XZ.

Required;

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Explanation;

From the diagram provided, we can draw the following conclusion;

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Also, we have;

$\begin{gathered} \Delta WZV\cong\Delta YXV \\ \\ SAS\text{ }congruency\text{ }criteria \end{gathered}$

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11 months ago

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kiruha [24]

Answer:

1. $112.72

3. $112.50

4. $16.50

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5. Add 16.50, 9.75, and 10. Subtract 28.99 from that total.

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7. Divide 56 by 7.

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3 years ago

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vfiekz [6]

Answer:

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Step-by-step explanation:

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