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Wittaler [7]
4 years ago
8

A fair eight-sided die with the sides numbered 1 to 8 is rolled twice.

Mathematics
1 answer:
ryzh [129]4 years ago
4 0

A - rolling an odd prime number followed by an even prime number

B - two numbers are consecutive numbers in ascending order


|\Omega|=8^2=64\\\\ |A|=\underbrace{3}_{\text{3,5,7}}\cdot\underbrace{1}_{\text{2}}=3\\ |B|=\underbrace{7}_{\text{(1,2),(2,3),\ldots(7,8)}}\\\\\\ P(A)=\dfrac{3}{64}\approx5\%\\ P(B)=\dfrac{7}{64}\approx11\%

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irinina [24]

Answer:

Only post one of these.

3 0
3 years ago
Someone please do this for me to be the brainliest personnn I will love you forever
laila [671]

Answer:

1) 2

2) -7/6

3) -5/4

4) -1/2

5) -13/28

6) 9/7

Step-by-step explanation:

5) (-6-7)/(17-(-11))=-13/28

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5 0
4 years ago
X/10=200/30<br> help me in this
dexar [7]

Answer:

x = 200/3

Step-by-step explanation:

x/10 = 200/30

x × 30 = 200 × 10

30x = 2000

x = 2000 ÷ 30

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<u>-TheUnknown</u><u>Scientist</u>

8 0
3 years ago
A rectangular exercise mat has a perimeter of 36 feet. The length of the mat is twice the width. Write and solve an equation to
Karo-lina-s [1.5K]
<h2>Hello!</h2>

The answers are:

- Length

length=2width=12feet

- Width

width=6feet

- Area

Area=72feet^{2}

<h2>Why?</h2>

We are given the perimeter of a rectangular mat, and we are asked to find the area, and write an equation to determine the length, if feet, of the mat. To solve this problem we need to remember the equation of the perimeter of a rectangle, which is:

Perimeter=2length+2width

Using the given information we have,

36feet=2length+2width

Also, we know that the length is twice the width, so:

length=2width

Then, substituting the second equation into the first equation, we can find the width of the mat.

Substituting, we have:

36feet=2(2width)+2width

36feet=4width+2width

36feet=6width

[tex]\frac{36feet}{6} =width\\width=\frac{36feet}{6} =6feet[/tex]

Then, substituting the width into the second equation, we can find the length of the mat,

Substituting, we have:

length=2width

length=2(6feet)=12feet

Then, finding the area, we have:

A=length*width=12feet*6feet=72feet^{2}

Have a nice day!

7 0
4 years ago
What the answer to this?
garik1379 [7]

Answer:

<h2>13</h2>

Step-by-step explanation:

9-5\div (8-3)\times 2+6\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Calculate\:within\:parentheses}\:\left(8-3\right)\::\quad 5\\=9-5\div \:5\times \:2+6\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:5\div \:5\times \:2\::\quad 2\\=9-2+6\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:9-2+6\:\\:\quad 13

7 0
3 years ago
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