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Harman [31]
1 year ago
8

Rita is adding 3 (negative 8) 1. She rewrites the expression as 3 (negative 1) 8. What is Rita’s error? She used the commutative

property, which cannot be used with negative numbers. In the new expression, –8 and 1 should both be negative. She used the associative property which should only be used with positive numbers.. She switched the negative signs for –8 and 1.
SAT
1 answer:
Lapatulllka [165]1 year ago
3 0

Answer:

D

Explanation:

I just took the quiz

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when an author focuses on characterization in a piece of fiction it means that he or she provides details about the
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It depends... Characterization is usually based on characters but it could also be something different like what setting a character is in.
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Which of the following provides organized information about related subjects?
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It’s B) Research database

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Which of the following career roadblocks is completely out of your control
nata0808 [166]
Hi there!

Here are some career roadblocks that are completely out of your control:

#1 Problems managing stress

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4 0
2 years ago
A bacterium was found to contain a sequence of ATCGGGATCCT in its genome. A few generations later, the sequence was found to be
Nana76 [90]

Answer:

duplication  

Explanation:

  • Inversion

If we talk about inversion, it inversion, it is a process in which a specific base sequence is inverted or rearranged in such a way that direction is reversed. For example: ABC is changed into BCA, therefore it is not right option.

  • Translocation

If we talk about translocation,it is  caused by rearrangement of parts between non homologous chromosomes. It can be balanced or unbalanced but it involves two genes or two sets of chromosomes. But in our example, we have only one sequence of DNA under study, therefore, inversion is not possible.

  • Insertion

Talking about insertion, it involves addition of one or more nucleotide at certain position of gene sequence. There are chances that it can be an insertion of GGG but the insertion of three G instead of any random nucleotide addition or nucleotide sequence addition is rare. So, there are less chances that this is an insertion and more chances that this is an exact duplication event.

  • Duplication:

If we talk about duplication, a certain portion of a gene or chromosome is  replicated or duplicated in such a way that it results in more than one copies of that region.

Keeping that definition infront, we see that GGG duplicated to GGGGGG.  So, if we logically look at the question, duplication seems to be the most appropriate option.

Hope it help!

7 0
2 years ago
Which of the following is equivalent to x2 + 2x –24?
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Answer:

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8 0
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