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3 years ago

Jackson wrote the equation below on the whiteboard.

Mathematics

2 answers:

faust18 [17]3 years ago

6 0

B = 7

7 x 6 = 42

42 + 6 = 48.

Illusion [34]3 years ago

6 0

The value of b is 7!

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jolli1 [7]

Answer:

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Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the circumference of this circle?

Goryan [66]

Answer:

i believe its 12.56637 but rounded off that will be 12.57

6 0

2 years ago

A fair coin is flipped twelve times. What is the probability of the coin landing tails up exactly nine times?

seraphim [82]

Answer:

$P\left(E\right)=\frac{55}{1024}$

Step-by-step explanation:

Given that a fair coin is flipped twelve times.

It means the number of possible sequences of heads and tails would be:

2¹² = 4096

We can determine the number of ways that such a sequence could contain exactly 9 tails is the number of ways of choosing 9 out of 12, using the formula

$nCr=\frac{n!}{r!\left(n-r\right)!}$

Plug in n = 12 and r = 9

$=\frac{12!}{9!\left(12-9\right)!}$

$=\frac{12!}{9!\cdot \:3!}$

$=\frac{12\cdot \:11\cdot \:10}{3!}$ ∵ $\frac{12!}{9!}=12\cdot \:11\cdot \:10$

$=\frac{1320}{6}$ ∵ $3!\:=\:3\times 2\times 1=6$

$=220$

Thus, the probability will be:

$P\left(E\right)=\frac{n\left(E\right)}{n\left(S\right)}$

$=\frac{220}{4096}$

$=\frac{55}{1024}$

Thus, the probability of the coin landing tails up exactly nine times will be:

$P\left(E\right)=\frac{55}{1024}$

4 0

2 years ago

In the same area where there are 3 Mankey Pokemon, 4 Pidgey Pokemon, and 2 Rattata Pokemon. What would be the probability of run

Mrac [35]

The probability of you running into a Mankey Pokemon and then a Pidgey Pokemonis 4/27.

6 0

1 year ago

Folosind procedeul mersului invers afla pentru can numarul stiind ca: a) daca la acel numar aduni 1345 apoi scazi 155 obtii numa

earnstyle [38]

Yeah I think so you have to solve and break it down

7 0

2 years ago