Which is an irrational number? HELP PLEASE

Mathematics

1 answer:

brilliants [131]3 years ago

7 0

Answer:

First one

Step-by-step explanation:

If you simplify the first answer, the numbers in the answer will not repeat

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Mark breaks up a 9 hour. Drive into three segments.he drives 2 1/2 hours before stopping for lunch. After driving some more,he s

Alecsey [184]

Answer: $2\frac{1}{3}\ hours$

Step-by-step explanation:

Given: The total time he drove= 9 hours

The time taken in first segment= $2\frac{1}{2}\ hours=\frac{5}{2}\ hours$

Since in the second segment of his drive was $1\frac{2}{3}$ hours longer than the first segment

Then the time he took in second segment= $\frac{5}{2}+1\frac{2}{3}=\frac{5}{2}+\frac{5}{3}=\frac{25}{6}\ hours$

Now , the time taken by him in the third segment= $9-(\frac{5}{2}+\frac{25}{6})$

$=9-\frac{40}{6}\\\\=\frac{14}{6}\\\\=\frac{7}{3}\\=2\frac{1}{3}\ hours$

Hence, He drive $2\frac{1}{3}\ hours$ after stopping for gas

5 0

3 years ago

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A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe

maxonik [38]

Answer:

the last option, effectively cooling the hot plate down and heating the surrounding up

5 0

3 years ago

5 7/8 + 11/4<br> show me how to solve

loris [4]

let's firstly convert the mixed fractions to improper fractions and then add, bearing in mind that the LCD from 8 and 4 is simply 8.

$\bf \stackrel{mixed}{5\frac{7}{8}}\implies \cfrac{5\cdot 8+7}{8}\implies \stackrel{improper}{\cfrac{47}{8}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{47}{8}+\cfrac{11}{4}\implies \stackrel{\textit{using the LCD of 8}}{\cfrac{(1)47~~-~~(2)11}{8}}\implies \cfrac{47-22}{8}\implies \cfrac{25}{8}\implies 3\frac{1}{8}$