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2 years ago

Simplify -6 + {14 + 2[60 - 9(1 + 3)]}

Mathematics

1 answer:

Ivahew [28]2 years ago

7 0

Answer:

mark me as brainlist

Step-by-step explanation:

-6+{14+2[60 - 9x4]}

-6+[14+2[60-36]}

-6+{14+2x24]

-6+[14+48]

-6+62

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PLEASE HELP!!! I NEED HELP ASAP!!! <333

Olegator [25]

Answer:

Step-by-step explanation:

Divide: 3/13 = 3 ÷ 13

3/13 = 0.230769230769...

B) is your answer

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2 years ago

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A man loses 30% by selling an article for 14 naira. what was the cost price of the article?

antiseptic1488 [7]

Loses 30% of what his money

8 0

2 years ago

A leprechaun places a magic penny under a girl's pillow. The next night there are 2 magic pennies under her pillow. The followi

Mars2501 [29]

Answer:

36 days

Step-by-step explanation:

Since the pennies need to be kept under the pillow in order to be doubled, we're really looking for the day the girl will wake up with 21 billions pennies under her pillow.

The general formula of that geometric sequence will be: t = 1 + 2^(n-1)

We need to find the value of n when t will be over 21,000,000,000.

So, the equation becomes:

21,000,000,001 = 1 + 2^(n-1)

2^(n-1) = 21,000,000,000

log(2^(n-1)) = log(21,000,000,000)

(n-1) * log(2) = log(21,000,000,000)

n-1 = log(21,000,000,000) / log(2)

n-1 = 34.29

n = 35.29

Since it has to be complete days, and we have to reach over 21 billions, then we round it up to 36.

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3 years ago

Find the seventh term of the geometric sequence 1, 2, 4, ... and the sum of the first seven terms. t7= S7=

IrinaK [193]

Answer:

Seventh term is 64

Sum of the first seven terms is 127

Step-by-step explanation:

The common ratio is 2

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

n = 7 and the first term is 1. So,

$a_{7} = 1(2^{7 - 1} ) = 2^{6} = 64$

Seventh term is 64

$S_{n} = \frac{a_{1} (r^{n} -1)}{r - 1}$

$S_{7} = \frac{1(2^{7} -1)}{2 - 1}$

$= \frac{128 - 1}{1} = 127$

Sum of the first seven terms is 127

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2 years ago

Graph y=sec(x+pi/4)

Nana76 [90]

Answer:

HERE IS THE ANSWER HOPE IT HELPS

Step-by-step explanation:

Brainliest?

Use math papa

3 0

3 years ago