What is the cosine rule

Mathematics

1 answer:

RSB [31]3 years ago

3 0

Answer:

The sum of the squares of the lengths of the other sides minus twice the product of the other two sides multiplied by the cosine of angle contained between them equals the square of the length of any side of a given triangle.

Step-by-step explanation:

hope it helps

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Clair has250 pennies some pennies are in a box the rest are in her bankthere are more then 100 pennies in each place how many pe

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Answer:

In each place there must be more 100 pennies, but as the total 250 pennies, there are several ways that the money is distributed.

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3 years ago

How many 7-digit phone numbers are possible, assuming that the first digit can’t be a 0 or a 1? (b) re-solve (a), except now ass

sladkih [1.3K]

A. We are going to form 7 digit numbers from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

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b.

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then we remove this number, from the one we found in a:

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Answer:

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3 years ago

Please help and give me an explanation I don’t understand or know if it’s correct

andrezito [222]

Hello :) we got similar answers but i believe you made a few distributing mistakes! hopefully my work makes sense, if not i’ll totally try to explain more

p.s i might be too late whoops

p.p.s i’m in a higher grade but i haven’t done this kinda math in a longgg time haha so if you think i did something wrong trust your gut ✌️

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