2 years ago

What does the symbol "⊄" represent?

Mathematics

2 answers:

boyakko [2]2 years ago

6 0

C) is not a subset of , is the correct option.....

Vladimir79 [104]2 years ago

4 0

It’s B) null set i am pretty sure

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The scale of a map is 1 inch: 250 miles. City A is 378 miles from City B. To the nearest tenth, how far is its distance on the m

juin [17]

This is a proportion question. We can express this as an equation where the answer is x:

$\frac{1}{250}$ = $\frac{x}{378}$

From there, you can just cross-multiply and divide to get:

$\frac{1 * 378}{250}$

A tenth of 250 is 25, so this is roughly $\frac{375}{250}$ or $\frac{17}{10}$ , so it'll be approximately 1.7 inches on the map.

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Write each fraction as a unit fraction 12/84 13/143 23/138

alexandr1967 [171]

A unit fraction is a fraction whose numerator is 1.

$\frac{12}{84}=\frac{12 \div 12}{84 \div 12}=\frac{1}{7} \\ \\
\frac{13}{143}=\frac{13 \div 13}{143 \div 13}=\frac{1}{11} \\ \\
\frac{23}{138}=\frac{23 \div 23}{138 \div 23}=\frac{1}{6}$

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(4×⁴+3×³+2×²-×+1)+(5×²-2×+3)

Annette [7]

Answer:

4×⁴+3×³+7×²-3x+4

Step-by-step explanation:

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Then combine the like terms

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Which is the answer.

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