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3 years ago

-7x+7y=-28 -3x-4y=-12

Mathematics

1 answer:

gtnhenbr [62]3 years ago

8 0

Answer:

<h2>hope it helps you see the attachment for further information ✌✌✌✌✌</h2>

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15 1/2 as an integer

juin [17]

Answer:

Step-by-step explanation:

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3 years ago

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I need help on number 6 plz!

expeople1 [14]

Woah that looks hard

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3 years ago

What is the square root of 144?

Novosadov [1.4K]

Answer:

Step-by-step explanation:

12 times 12 is 144

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3 years ago

PLEASE HELP!! I WILL MARK THE FIRST CORRECT ANSWER BRAINLIEST!!))

Svetradugi [14.3K]

Answer:

Step-by-step explanation:

V=πr2h=π·112·15≈5701.99067

5701.99 is your final answer

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3 years ago

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How many 10-digit ternary strings are there that contain exactly two 0s, three 1s, and five 2s?

Svet_ta [14]

There are $\dbinom{10}2$ ways of picking 2 of the 10 available positions for a 0. 8 positions remain.

There are $\dbinom83$ ways of picking 3 of the 8 available positions for a 1. 5 positions remain, but we're filling all of them with 2s, and there's $\dbinom55=1$ way of doing that.

So we have

$\dbinom{10}2\dbinom83\dbinom55=\dfrac{10!}{2!(10-2)!}\dfrac{8!}{3!(8-3)!}\dfrac{5!}{5!(5-5)!}=2520$

The last expression has a more compact form in terms of the so-called multinomial coefficient,

$\dbinom{10}{2,3,5}=\dfrac{10!}{2!3!5!}=2520$

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3 years ago