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3 years ago

Is 1.66666667 Rational or irrational

Mathematics

2 answers:

devlian [24]3 years ago

4 0

Answer:

Rational.

Step-by-step explanation:

1.666... can be expressed as $\frac{5}{3}$ .

Hence it is rational.

SSSSS [86.1K]3 years ago

3 0

Answer:

irrational

Step-by-step explanation:

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Determine whether the given equation has one solution, no solution, or infinitely many solutions. 2/3x = 9 - 2(-1/3x + 3)

Sonja [21]

Answer:. One solution

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

F:x→(x+1/x+3), x≠3 and g:x→（6/x-2), x≠2, find f²(4) and g²(1/2)

Sveta_85 [38]

Answer:

$f^2(4) = (\frac{25}{49})\\g^2(\frac{1}{2} ) = 16$

Step-by-step explanation:

Here, given:

$f(x) = (\frac{x+1}{x+3} ), g(x) = (\frac{6}{x-2} )$

Now, here to find the values of $f^2(4), g^2(\frac{1}{2})$

As we know: $f^n(x) = (f(x))^n$

Now, substituting x = 4 in f(x):

$f(4) = \frac{4 +1}{4+3} = \frac{5}{7} \\\implies f^4 = (f(4))^2 = (\frac{5}{7} )^2 = \frac{25}{49} \\\implirs f^{(4)} = ( \frac{25}{49})$

Now, substituting x = 1/2 in g(x):

$g(\frac{1}{2} ) = \frac{6}{\frac{1}{2}-2} = \frac{6}{-\frac{3}{2}} \\\\ g(\frac{1}{2} ) = -6\times (\frac{2}{3} ) = -4\\\implies g^2{(\frac{1}{2}) = ( g(\frac{1}{2} ))^2 = (-4 )^2 =16 \\\\\implies g^2{(\frac{1}{2}) = 16$

3 0

3 years ago

taylor is moving and must rent a truck. there is an initial charge of $45 for the rental plus an additional fee per mile driven.

Neko [114]

105$

Because she drove 5 miles which is 60$ then the truck was 45$ so 45$ + 65$ = 105$

5 0

4 years ago

Medical researchers are studying a certain genetic trait found in two populations of people, W and X. From an independent random

nadya68 [22]

Answer:

If the proportions of all people who carry the trait are the same for both populations, the probability of observing a sample difference of at least 0.22 is 0.03

Step-by-step explanation:

Given the hypothesis :

H0 : pW = pX

Ha : pW > pX

W - X = 0.22

Pvalue = 0.03

Since the Pvalue gives the probability of obtaining a value or result figure which is atleast as extreme as the observed value. The observed value here is 0.22 resulting from the difference in W and X (W - X).

This can thus be interpreted to mean ; going by the Null (difference between W and X) ; the probability of obtaining a value of atleast 0.22 as difference is 0.03

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3 years ago

×+9/×+5 when x=2 rational expression

Ipatiy [6.2K]

2+9 / 2+5 = 11 / 7 (I think that's a rational expression :) )

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3 years ago