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Marina86 [1]
3 years ago
11

PLEASE HELP 13 PTS

Mathematics
1 answer:
ehidna [41]3 years ago
7 0

Answer:

A.

Step-by-step explanation:

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Biologists are studying tropical plants to determine how far north each type of plant can survive. What is the population?
Ahat [919]

It is the tropical plants. The text asks about population which is defined as the total number of an object or an entity. In scientific researches, samples are drawn from population to explore either qualitatively or quantitatively a phenomenon. Moreover, biologists study plants as subjects in this study.
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In a coin collection, the number of dimes is 6 more than twice the number of nickels. If the collection has 36 dimes, how many n
kodGreya [7K]

Answer: The answer is 78

Step-by-step explanation:

Since it said the number of dimes is 6 more than twice the number of nickels There are 36 dimes, this statement in an equation is d=(2n + 6), so then it would be [2(36) + 6] which is 72 + 6 = 78

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Find the value of -|-5|
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Answer: -5

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Jennifer, Luis, Robert, Anna, and Tonya are figuring out how to split the check for lunch.
kramer

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3 years ago
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Expand the polynomial and simplify: (4xy− 1 8 y^2)^2
Vinvika [58]

Answer: 4y^{2}(2x-9y)^{2}

Step-by-step explanation:

We have the following polynomial:

(4xy-18y^{2})^{2}

This is a polynomial of the form (a-b)^{2}=a^{2}-2ab+b^{2}. Following this rule to expand it, we have:

(4xy)^{2}-2(4xy)(18y^{2})+(18y^{2})^{2}

16x^{2}y^{2}-144xy^{3}+324y^{4}

Applying common factor 4y^{2}:

4y^{2}(4x^{2}-36xy+81y^{2})

Note the polynomial inside the parenthesis is a perfect square trinomial, which can be factored to(2x-9y)^{2}. Hence, the final simplification is:

4y^{2}(2x-9y)^{2}

3 0
2 years ago
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