2 years ago

PLSSSSSSSSSSSSSSSSSSSSS

Mathematics

1 answer:

Veseljchak [2.6K]2 years ago

4 0

I believe that the correct answer would be A

Hope this helped love <3

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Evaluate the expression begin expression . . . 2 times n, times, the quantity n minus 1 . . . end expression, when n = 3 . A 11

arsen [322]

Answer:

B (12)

Step-by-step explanation:

The expression can be written as the following:

(2n)(n-1)

Let n=3

(2*3)(3-1)=(6)(2)=12

So the answer is B (12).

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3 years ago

How do you solve this? 4x(a-4)

masya89 [10]

Answer:

Step-by-step explanation:

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2 years ago

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Find the oth term of the geometric sequence 7, 14, 28, ...

yaroslaw [1]

Answer:

The nth term of the geometric sequence 7, 14, 28, ... is:

$a_n=7\cdot \:2^{n-1}$

Step-by-step explanation:

Given the geometric sequence

7, 14, 28, ...

We know that a geometric sequence has a constant ratio 'r' and is defined by

$a_n=a_1\cdot r^{n-1}$

where a₁ is the first term and r is the common ratio

Computing the ratios of all the adjacent terms

$\frac{14}{7}=2,\:\quad \frac{28}{14}=2$

The ratio of all the adjacent terms is the same and equal to

$r=2$

now substituting r = 2 and a₁ = 7 in the nth term

$a_n=a_1\cdot r^{n-1}$

$a_n=7\cdot \:2^{n-1}$

Therefore, the nth term of the geometric sequence 7, 14, 28, ... is:

$a_n=7\cdot \:2^{n-1}$

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2 years ago

In the triangle below, with right angle , suppose that and .

bazaltina [42]

Answer:

G= 60.5

E= 70.9

F= 90

........

.......

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2 years ago

J= 6 for 15 - j= 21<br> What’s the answer

Ann [662]

Answer:

15+6=21

15-(-6) = 21

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3 years ago

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