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3 years ago

9.

Mathematics

2 answers:

beks73 [17]3 years ago

6 0

$(x + y) + z$
...........

soldi70 [24.7K]3 years ago

6 0

The answer is c

dont get mad if its wrong

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How do you write 2.92 trillion in scientific notation form

yaroslaw [1]

Answer:

2.92 × 10⁹

Step-by-step explanation:

im not exactly sure if im right but this is what i know, lmk if its wrong

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3 years ago

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Which is equivalent to 32 + 16

Scrat [10]

Answer:

8(4+2)

Step-by-step explanation:

Hi there! We know that 32+16=48 so all we have to do is find a expression that equals 48. 8(4+2)=48. 8(24+8)=256. 7(4+2)=42. 7(24+8)=224. Therefore, the expression that is equivalent to 32+16 is 8(4+2).

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Simply the expression of 3x+6-2x+7

ANEK [815]

Answer:

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Step-by-step explanation:

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3 years ago

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Which simplifications of the powers of i are correct? There may be more than one correct answer.

fredd [130]

$\bf i^2=-1\qquad\qquad i^3=-i\qquad \qquad i^4=1 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ i^{22}\implies i^{(4\cdot 5)+2}\implies i^{4\cdot 5}i^2\implies (i^4)^5 i^2\implies 1^5(-1)\implies -1~\dotfill \bigotimes \\\\\\ i^{11}\implies i^{(2\cdot 5)+1}\implies (i^2)^5 i\implies (-1)^5(i)\implies -i~\dotfill \checkmark$

$\bf i^{21}\implies i^{(4\cdot 5)+1}\implies (i^4)^5 i\implies 1^5(i)\implies i~\dotfill \checkmark \\\\\\ i^{12}\implies i^{3\cdot 4}\implies i^3 i^4\implies (-i)(1)\implies -i\dotfill \bigotimes \\\\\\ i^{20}\implies i^{4\cdot 5}\implies (i^4)^5\implies 1~\dotfill \checkmark \\\\\\ i^{26}\implies i^{(4\cdot 6)+2}\implies (i^4)^6 i^2\implies 1^6(-1)\implies -1\dotfill \checkmark \\\\\\ i^{27}\implies i^{(4\cdot 6)+3}\implies (i^4)^6 i^3 \implies 1^6(-i)\implies -i\dotfill \bigotimes$

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3 years ago

A survey was taken of a certain number of pet owners, asking about the weight of their dogs in pounds.

Dmitrij [34]

Answer:

B. The median weight of the dogs in the survey is 57 pounds

Step-by-step explanation:

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3 years ago