3 years ago

Which of the following is irrational? 4.63 1 3 −8 11

Mathematics

1 answer:

Nikitich [7]3 years ago

5 0

-8 because it falls under zero in the number line and the rest dont

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Cloud [144]

Answer:

8 times 3 times 2+2 times 6 times 2+8 times 6 times 2

Step-by-step explanation:

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3 years ago

3 times the sum of 5 times a number and 4 is 7 times the difference twice the number and 5, what is the number?

Citrus2011 [14]

Answer:

x=-47

Step-by-step explanation:

3(5x+4)=7(2x-5)

15x+12=14x-35

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x=-47

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3 years ago

The students in Eddie's grade voted to select a guest speaker, 20% of the students voted

gulaghasi [49]

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Step-by-step explanation:

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3 years ago

Given two terms in a geometric sequence find the first five terms.

LekaFEV [45]

The first five terms of the geometric series is : -2, -6, -18, -54, -162.

<h3> To solve the given problem :</h3>

Given : $a_{5} = -162$

$a_{2} = -6$

We know G.P. series always increases in the form $a.r^{n-1}$

<em>Similarly, </em> $a_{5} = a.r^{5-1} = a.r^{4} = -162$

$a_{2} = a.r^{2-1} = a.r = -6$

Now, $\frac{a_{5} }{a_{2} } = \frac{a.r^{4} }{a.r^{1} } = r^{4-1}$

$r^{3} = \frac{-162}{-6} = 27$

$r = \sqrt[3]{27} = 3$

Now,

$a_{2} = a.r = -6\\a.(3) = -6\\a = -2$

The first 5 terms are : $a, a.r, a.r^{2} , a.r^{3} , a.r^{4}$

$-2 , (-2).3 , (-2).3^{2} , (-2).3^{3} , (-2).3^{4}$

Therefore, The first 5 terms are : -2, -6, -18, -54, -162.

To learn more about G.P. series, refer to :

brainly.com/question/24643676

#SPJ2

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2 years ago

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suter [353]

Answer:

same

Step-by-step explanation:

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2 years ago