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2 years ago

Write down the rules for multiplication and division of whole numbers

1 answer:

8 0

As division is the inverse of multiplication, the rules for division are the same as the rules for multiplication. So when multiplying and dividing positive and negative numbers remember this: If the signs are the same the answer is positive, if the signs are different the answer is negative.

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What is the probability of rolling a number greater than or equal to 9 with the sum of two dice, given that at least one of the

olga55 [171]

Conditional probablility P(A/B) = P(A and B) / P(B). Here, A is sum of two dice being greater than or equal to 9 and B is at least one of the dice showing 6. Number of ways two dice faces can sum up to 9 = (3, 6), (4, 5), (4, 6), (5, 4), (5, 5), (5, 6), (6, 3), (6, 4), (6, 5), (6, 6) = 10 ways. Number of ways that at least one of the dice must show 6 = (1, 6), (2, 6), (3, 6), (4, 6), (5, 6), (6, 6), (6, 5), (6, 4), (6, 3), (6, 2), (6, 1) = 11 ways. Number of ways of rolling a number greater than or equal to 9 and at least one of the dice showing 6 = (3, 6), (4, 6), (5, 6), (6, 3), (6, 4), (6, 5), (6, 6) = 7 ways. Probability of rolling a number greater than or equal to 9 given that at least one of the dice must show a 6 = 7 / 11

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2 years ago

A cylinder has a radius of 10 M and a height of 8 AM what is the exact volume of the cylinder

natita [175]

$\bf \textit{volume of a right-circular cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=10\\ h=8 \end{cases}\implies V=\pi (10)^2(8)\implies V=800\pi \\\\[-0.35em] ~\dotfill\\\\ ~\hfill V\approx 2513.27~\hfill$

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2 years ago

If DE≅EF, CD = v + 45, and CF = 4v, what is the value of v?

irinina [24]

Answer:

<h2><u>since </u><u>DE≅EF</u></h2>

<h2><u>hope</u><u> it</u><u> helps</u><u> you</u><u><</u><u>3</u></h2>

3 0

2 years ago

(2, 7) and (-4,1)<br> In point slope form

GREYUIT [131]

Answer:

First you need to find the slope with this equation.

<h3> $m=\frac{y2-y1}{x2-x1}$ m=slope</h3><h3> $m=\frac{1-7}{-4-2}$ </h3><h3> $m=\frac{-6}{-6}$ </h3><h3> $m=1$ </h3>

So the point slope form formula is:

$y=x-2+7\\y=x+5$ This is the point slope form.I hope this help.

Please give me the brainliest

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2 years ago

2-3. The triangles below are drawn to scale and congruent sides and angles are indicated with tick marks.

mihalych1998 [28]

Answer: The triangles are congruent by SAS(side-angle-side)

Step-by-step explanation:

The triangles are congruent because 2 corresponding sides and one corresponding angle are given as congruent in an order respectable as a congruency statement(the SAS part).

6 0

2 years ago

Write down the rules for multiplication and division of whole numbers​

Write down the rules for multiplication and division of whole numbers