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3 years ago

What's the answers to theseeeee help need it bye 12:00

Mathematics

1 answer:

quester [9]3 years ago

8 0

We were just leaving about this

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Help !!!!!!!!!!!!!!!!!!!!!!!!!!

Lelechka [254]

THE CORRECT ANSWER IS THE LAST ONE sorry caps :) hops this help tho plzz mark as best plzzzzzzzzzzzzzzz

5 0

3 years ago

Read 2 more answers

A certain code is a sequence of 7 digits. What is the probability of generating 7 digits and getting the code consisting of 1, 2

Oksana_A [137]

Answer:

The code has 7 digits:

Here you are asking:

"What is the probability that the code is consisting only of the digits {1, 2, 3, 4, 5, 6, 7}?"

Ok, first we must calculate the number of all the possible codes.

Suppose that each digit is an independent event.

Each one of those events has 10 possible outcomes {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

And we have 7 of those.

The total number of possible combinations is equal to the product of the number of outcomes for each event, then the total number of possible combinations is:

C = 10^7.

Now let's calculate the number of possible codes if we only use the digits in the restriction.

We can do exactly the same as above, but now in each case, we have 7 possible outcomes for each digit, then in this case the number of possible combinations is:

c = 7^7.

Now the probability of generating at random a code that only uses the digits {1, 2, 3, 4, 5, 6, 7} is equal to the quotient between the number of codes that only use these digits, and the total number of possible codes.

P = c/C = (7^7)/(10^7) = (7/10)^7 = 0.082

4 0

3 years ago

The expression 7^n/7^5 simplifies to 7^p. If n = 18, what is the value of the exponent p? Show your work and explain how you fou

nirvana33 [79]

When you divide two powers of the same base, you subtract the exponents:

$\dfrac{a^b}{a^c} = a^{b-c}$

This means that, in your case,

$\dfrac{7^n}{7^5} = 7^p \iff 7^{n-5} = 7^p \iff n-5 = p$

So, if $n=18$ , the equation becomes

$18-5 = p \iff p = 13$

5 0

3 years ago

A cylinder has a volume of 315π cubic meters. What is the area of the base?

zepelin [54]

Answer:

its 19 okie dokie

Step-by-step explanation:

8 0

3 years ago

What is bigger 5/6 or 13/18?

san4es73 [151]

To compare fractions, you need a common denominator.
6 goes into 18 three times. If we multiply (5/6) by 3 on top and bottom you get
$\frac{15}{18}$
Now we can compare numerators, since 15 > 13
$\frac{5}{6} \ \textgreater \ \frac{13}{18}$

4 0

4 years ago