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3 years ago

Irrational numbers (picture provided)

Mathematics

1 answer:

frez [133]3 years ago

3 0

Answer:

C would be irrational.

Step-by-step explanation:

Irrational means that you cannot make a distinct ratio with the number. One of the more famous irrational numbers are π. You cannot make π into a fraction with whole numbers for a numerator and denominator.

Other examples of irrational numbers are square roots that are not perfect square roots. C is not a perfect square so it is irrational.

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HELP ME PLS

Dafna11 [192]

Answer: R' = $(3\frac{1}{3} ,1\frac{2}{3})$ , S' = $(3\frac{1}{3} ,-3\frac{1}{3})$ , T' = $(-1\frac{2}{3} ,-3\frac{1}{3})$

Step-by-step explanation:

R = (2, 1) ⇒ R' = $(\frac{5}{3})2 , (\frac{5}{3})1 = (\frac{10}{3} , \frac{5}{3})$

S = (2, -2) ⇒ S' = $(\frac{5}{3})2 , (\frac{5}{3})(-2) = (\frac{10}{3} , \frac{-10}{3})$

T = (-1, -2) ⇒ T' = $(\frac{5}{3})(-1) , (\frac{5}{3})(-2) = (\frac{-5}{3} , \frac{-10}{3})$

Plot the coordinates.

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4 years ago

Three people toss a fair coin and the odd one pays for coffee. if the coins all turn up the same, they are tossed again. find th

dexar [7]

Since the problem doesn’t give a definite question, here are the possible questions and answer:

P(fewer than 4 tosses)
= P(one toss) + P(two toss) + P(3 toss)
= (3/4) + (3/4)(1/4) + (3/4)(1/4)^2
= 0.984375

Expected value
= 1 / p
= 1 / (3/4)
= 4 / 3

Variance
= (1 - p) / p^2
= (1 - (3/4)) / (3/4)^2
= (1/4) / (9/16)
= 4 / 9

Standard deviation
= sqrt(Variance)
= sqrt(4 / 9)
= 2 / 3

8 0

3 years ago

Add. 1 1/2 + 3/5 + 1/8 A. 1 5/13 B. 27/15 C. 2 9/40 D. 1 3/8

Alex Ar [27]

Get the mixed number into one fraction
$\frac{3}{2} + \frac{3}{5} + \frac{1}{8}$
Get a common denominator
$\frac{60}{40} + \frac{24}{40} + \frac{5}{40}$
Now add
$\frac{89}{40}$
You can get it back to a mixed number
$2 \frac{9}{40}$

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3 years ago

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What is the value of n?

algol [13]

Answer:

Step-by-step explanation:

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3 years ago

The distance around the school track is 1/4 Mile how many times around the track does Cheryl need to run in order to run 1 mile

Natali5045456 [20]

Answer:

4 rounds

Step-by-step explanation:

Because the distance around the school track is 1/4 mile, to achieve 1 mile or can also be written as 4/4 mile, he will have to run in total of:

1 / 1/4

= 1*4/1

= 4 rounds

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3 years ago

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