3 years ago

Math question pls help

Mathematics

1 answer:

myrzilka [38]3 years ago

4 0

Answer:

y = x + 3

Step-by-step explanation:

This is because the number is increasing by three each time and if you substituted the variable x with a number the answer is true.

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Which of the following

Damm [24]

Answer:

A: represents a function

Explanation:

Every other option, A, has two y for one x.

It can be a function if there is 1x for 1y.

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Used books cost $2.25 each. Which expression represents the total number of books that can be purchased for $10?

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The combined weight of three basset hounds is 185 pounds. The two smaller dogs weigh the same. The difference between the larger

olga2289 [7]

Answer:

75 pounds

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4 years ago

Use Gauss's approach to find the following sums (do not use formulas). 1+3+5+7+...999

muminat

$S=1+3+5+\cdots+995+997+999$
$S=999+997+995+\cdots+5+3+1$
$\implies 2S=(1+999)+(3+997)+(5+995)+\cdots+(995+5)+(997+3)+(999+1)$

$2S=\underbrace{1000+1000+\cdots+1000+1000}_{500\text{ times}}$

(We are adding 500 instances of 1000 because that's how many odd numbers there are between 1 and 1000, inclusive.)

$2S=500\times1000=500000$
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4 years ago