3 years ago

Prove that for any arithmetic sequence a7+a10=a8+a9

Mathematics

1 answer:

vodka [1.7K]3 years ago

5 0

Answer: a3+a6=a4+a5

Step-by-step explanation: since both of those sides there = a17, you can do the same for any other number.

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Cookies are sold singly or in packages of 3 or 9. With this packaging, how many ways can you buy 18 cookies?

tresset_1 [31]

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2 years ago

The distance along a line is considered an undefinable term in mathematics. which situation provides an example of why distance

madam [21]

Depends on the unit of measure

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2 years ago

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Katyanochek1 [597]

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Step-by-step explanation:

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2 years ago

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A drawing has a scale 1/4 in: 12ft. How long is 8ft?

allochka39001 [22]

If you use a proportion, you'll get:

$\frac{0.25}{12} = \frac{x}{8}$

Then, you use cross products:

$12x=0.25(8) \\ 12x=2$

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$12x=2 \\ \frac{12x}{12} = \frac{2}{12} \\ x= \frac{5}{3}$

The answer is 5/3 inches , or 1 5/13 inches, or 1.6 repeating.

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3 years ago

Two X squared Plus three X - two is

vodka [1.7K]

that's the simplification mod

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2 years ago