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3 years ago

5+8^-38 what is the answer please

Mathematics

1 answer:

Eddi Din [679]3 years ago

3 0

Well if the 8 is squared the answer should be 31

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The drama and math club scenario is represented by the system of equations in which x represents the drama club members and y re

shtirl [24]

Answer:

-8, 40, 32.

Step-by-step explanation:

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6 0

3 years ago

-3(10+-5)/(10-(-5))^2

marysya [2.9K]

Answer:

Step-by-step explanation:

-3(10 + (-5) / (10 - (-5))^2 =

-3(10 - 5) / (10 + 5)^2

-3(5) / (15^2)

-15 / 225 reduces to -1/15

7 0

3 years ago

Pls help <br> (4z - 12) - 12z

Pavlova-9 [17]

Answer: the question can only be simplified to -8z-12 because there is no equal sign.

Step-by-step explanation:

(4z - 12) - 12z

-8z-12

4 0

2 years ago

Read 2 more answers

Someeee one?????????????????

Ad libitum [116K]

Answer:

Option B) $a_{n} = 2\cdot 4^{n-1}$

Step-by-step explanation:

The given geometric sequence is

2, 8, 32, 128,....

The general form of a geometric sequence is given by

$a_{n} = a_{1}\cdot r^{n-1}$

Where n is the nth term that we want to find out.

a₁ is the first term in the geometric sequence that is 2

r is the common ratio and can found by simply dividing any two consecutive numbers in the sequence,

$r=\frac{8}{2} = 4$

You can try other consecutive numbers too, you will get the same common ratio

$r=\frac{32}{8} = 4$

$r=\frac{128}{32} = 4$

So the common ratio is 4 in this case.

Substitute the value of a₁ and r into the above general equation

$a_{n} = 2\cdot 4^{n-1}$

This is the general form of the given geometric sequence.

Therefore, the correct option is B

Note: Don't multiply the first term and common ratio otherwise you wont get correct results.

Verification:

$a_{n} = 2\cdot 4^{n-1}$

Lets find out the 2nd term

Substitute n = 2

$a_{2} = 2\cdot 4^{2-1} = 2\cdot 4^{1} = 2\cdot 4 = 8$

Lets find out the 3rd term

Substitute n = 3

$a_{3} = 2\cdot 4^{3-1} = 2\cdot 4^{2} = 2\cdot 16 = 32$

Lets find out the 4th term

Substitute n = 4

$a_{4} = 2\cdot 4^{4-1} = 2\cdot 4^{3} = 2\cdot 64 = 128$

Lets find out the 5th term

Substitute n = 5

$a_{5} = 2\cdot 4^{5-1} = 2\cdot 4^{4} = 2\cdot 256 = 512$

Hence, we are getting correct results!

6 0

3 years ago

Please help me answer this question mathematicians

Damm [24]

Answer:

6.5e^(i·(-157.38°)) ≈ 6.5e^(-2.7468i)

Step-by-step explanation:

A suitable calculator can find the value of this ratio for you.

((2+3i)/(1-i))² = -6 -2.5i ≈ 6.5∠-157.38° ≈ 6.5e^(-2.7468i)

The second attachments shows the calculator set to radian mode for the angle measure.

6 0

1 year ago