3 years ago

The expression −260+18 m represents a submarine that began at a depth of 260 feet below sea level and ascended at a rate of

Mathematics

1 answer:

telo118 [61]3 years ago

3 0

-152
So you start by doing 18 times 6, you get 108. Then you subtract 108 from 260 and get your answer, 152!

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Alenkasestr [34]

Answer:

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Step-by-step explanation:

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4 years ago

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Find the sum of the first 12 terms of the sequence. Show all work for full credit. 1, -4, -9, -14, . . . (2 points)

My name is Ann [436]

<u>Answer:</u>

$S_n=$ -348

<u>Step-by-step explanation:</u>

We are given the following arithmetic sequence and we are to find the sum of its first 12 terms:

1, -4, -9, -14, . . .

For that, we will use the formula for the sum of the arithmetic mean:

$S_n=\frac{n}{2} (a_1+a_n)$

We know the value of the first term ( $a_n$ ) but we need to find the value of $a_{12}$ . So we will use the following formula:

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$a_{12}=(-4)+(12-1)(5)$

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Substituting these values in the sum formula to get:

$S_n=\frac{12}{2} (1+(-59))$

$S_n=$ -348

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3 years ago

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Sue wrote a double fact. It has a sum less than 10 and greater than 4. The addends are each less than 5. What fact might she hav

zloy xaker [14]

It could be:
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3 years ago

Whats the CORRECT ANSWER giving brainliest to first correct 1

Scorpion4ik [409]

Answer:

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Step-by-step explanation:

All I did was count the units

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padilas [110]

The answer is B.

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Denumerators: x × x = x² and +2 × -2 = -4

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Hope it helped,

Happy homework/ study/ exam!

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