2 years ago

Which of the following statements is true?

Mathematics

1 answer:

valentinak56 [21]2 years ago

5 0

Answer:

All the populations in an ecosystem form the community.

Step-by-step explanation:

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Keith has 39 books in his library he brought several books at a yard sale over the weekend he now has 84 in his library how many

garri49 [273]

Subtract original amount from new amount:

84 - 39 = 45

He bought 45 books.

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3 years ago

Benito spent $1691 to operate his car last year. Some of these expenses are listed below. Benito's only other expense was for ga

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D . it doesn't say how much he spent on gas

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3 years ago

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Bobby has a bag containing 2 sizes of marbles. The big ones weigh 10 g and the small ones weigh 3 g. If there are three times as

Vikentia [17]

Answer:

There are 19 big marbles

Step-by-step explanation:

10a + 3b = 209

a = 3b

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3 years ago

Find the first, fourth, and eighth terms of the sequence. A(n) = −2 ∙ 2^x − 1

geniusboy [140]

$a_n=-2\cdot2^{n-1}\\\\n=1\to a_1=-2\cdot2^{1-1}=-2\cdot2^0=-2\cdot1=-2\\\\n=4\to a_4=-2\cdot2^{4-1}=-2\cdot2^3=-2\cdot8=-16\\\\n=8\to a_8=-2\cdot2^{8-1}=-2\cdot2^7=-2\cdot128=-256\\\\Answer:\ C. -2;\ -16;\ -256$

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3 years ago

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Triangle ABC in quadrant one with side AB of length 2 units, triangle A prime B prime C prime in quadrant four

Anestetic [448]

Answer:

B because they are basically the same AB = 2, there was no change, just a relfection, so A'B' = 2 as well Hope this helped

Step-by-step explanation:

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3 years ago