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goblinko [34]
3 years ago
10

3(4+6)-16 what does it equal and how did you get the answer

Mathematics
1 answer:
Alecsey [184]3 years ago
5 0

Answer:

14

Step-by-step explanation:

you can do this two ways:

<u>First: </u>

3(10)-16\\=30-16\\=14

<u>Second: </u>

Distribute the 3 first

\\12+18-16\\=30

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I'm horrible with adding words to math, and I'm incapable of talking so I couldn't do the audio assignment.
aev [14]

Answer:

Do you have any key words from the unit?


Step-by-step explanation:


8 0
3 years ago
Does the series converge or diverge? If it converges, what is the sum? Show your work. ∑ ∞ n = 1 − 4 ( − 1 / 2 ) n − 1
Mekhanik [1.2K]

Answer:

Step-by-step explanation:

Given the series,

∑ ∞ n = 1 − 4 ( − 1 / 2 ) n − 1

I think the series is summation from n = 1 to ∞ of -4(-1/2)^(n-1)

So,

∑ − 4 ( − ½ )^(n − 1). From n = 1 to ∞

There are different types of test to show if a series converges or diverges

So, using Ratio test

Lim n → ∞ (a_n+1 / a_n)

Lim n → ∞ (-4(-1/ 2)^(n+1-1) / -4(-1/2)^(n-1))

Lim n → ∞ ((-4(-1/2)^(n) / -4(-1/2)^(n-1))

Lim n → ∞ (-1/2)ⁿ / (-1/2)^(n-1)

Lim n→ ∞ (-1/2)^(n-n+1)

Lim n→ ∞ (-1/2)^1 = -1/2

Since the limit is less than 0, then, the series converge...

Sum to infinity

Using geometric progression formula

S∞ = a / 1 - r

Where

a is first term

r is common ratio

So, first term is

a_1 = -4(-½)^1-1 = -4(-½)^0 = -4 × 1

a_1 = -4

Common ratio r = a_2 / a_1

a_2 = 4(-½)^2-1 = -4(-½)^1 = -4 × -½ = 2

a_2 = 2

Then,

r = a_2 / a_1 = 2 / -4 = -½

S∞ = -4 / 1--½

S∞ = -4 / 1 + ½

S∞ = -4 / 3/2 = -4 × 2 / 3

S∞ = -8 / 3 = -2⅔

The sum to infinity is -2.67 or -2⅔

Check attachment for better understanding

3 0
3 years ago
I REALLY NEED HELP!!!
valkas [14]

Answer:

Oh naw i can't help you with that one man but thanks for the points 63567Step-by-step explanation:

b 674 then38743 then 8391

7 0
2 years ago
Read 2 more answers
At the dog park, 2 dogs are black with spots, 5 dogs are white with spots, 1 dog is solid white, and 4 dogs are solid black. Wha
Nikolay [14]
Its 11/12 , you need to divide the "wanted results" (every dog which is either black, with spots or both ) by every every possible result ( all dogs ). so 11/12=0.92
5 0
3 years ago
Read 2 more answers
Find the value of x.
nevsk [136]

Answer:

<h2>x = 30°</h2>

Step-by-step explanation:

Since the figure above is a triangle, all it's angles sum up to 180°

To find x , add up all the angles and subtract them from 180°

That's

57 + 93 + x = 180

150 + x = 180

x = 180 - 50

We have the final answer as

<h3>x = 30°</h3>

Hope this helps you

5 0
3 years ago
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