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german
3 years ago
9

A scuba diver swam 96 feet beneath the surface of the lake . He then climbs up 49 feet. What is his depth now?

Mathematics
2 answers:
Iteru [2.4K]3 years ago
7 0
If this question is as simple as it seems all you would have to do is subtract. If he is down 96 feet then goes up 49 feet you would do 96-49.

The answer is 47 feet.

I hope this helps! Let me know if this is right.
iVinArrow [24]3 years ago
3 0

Answer:

47 feet below the surface of the lake.

Step-by-step explanation:

We have been given a scuba diver swam 96 feet beneath the surface of the lake.

Since scuba diver swam 96 feet beneath the surface of the lake, so his elevation would be negative 96 feet.

The diver then climbs up 49 feet, so his elevation would be positive 49 feet.

\text{Diver's final elevation}=-96\text{ ft}+49\text{ ft}

\text{Diver's final elevation}=-47\text{ ft}

Since diver's elevation is negative 47 feet, therefore, diver is 47 feet below the surface of the lake.

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The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party,
Mama L [17]

Answer:

(a)\ P(x = 0) = 0.2725

(b)\ P(x \ge 1) =0.7275

(c)\ P(x \le 2) = 0.8948

Step-by-step explanation:

Given

n = 8 --- 8 friends

p = 15\% --- proportion that one-time fling

This question is an illustration of binomial probability, and it is represented as:

P(X = x) = ^nC_x* p^x * (1 - p)^{n-x}

Solving (a): P(x = 0) --- None has done one time fling

P(x = 0) = ^8C_0* (15\%)^0 * (1 - 15\%)^{8-0}

P(x = 0) = 1* 1 * (1 - 0.15)^{8}

P(x = 0) = 0.85^8

P(x = 0) = 0.2725

Solving (b): P(x \ge 1)

To do this, we make use of compliment rule:

P(x = 0) + P(x \ge 1) =1

Rewrite as:

P(x \ge 1) =1 - P(x = 0)

P(x \ge 1) =1 - 0.2725

P(x \ge 1) =0.7275

Solving (c): P(x\le 2)--- Not more than 2 has one time fling

This is calculated as:

P(x\le 2) = P(x = 0) + P(x =1) + P(x = 2)

We have:

P(x = 0) = 0.2725

P(x = 1) = ^8C_1* (15\%)^1 * (1 - 15\%)^{8-1}

P(x = 1) = 8* (0.15) * (1 - 0.15)^7

P(x = 1) = 0.3847

P(x = 2) = ^8C_2* (15\%)^2 * (1 - 15\%)^{8-2}

P(x = 2) = 28* (0.15)^2 * (1-0.15)^6

P(x = 2) = 0.2376

So:

P(x\le 2) = P(x = 0) + P(x =1) + P(x = 2)

P(x \le 2) = 0.2725 + 0.3847 + 0.2376

P(x \le 2) = 0.8948

4 0
3 years ago
HELP PLSSSSSSS
trasher [3.6K]

Answer:

<h2>II </h2>

Step-by-step explanation:

That's my answer hope it is correct

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3 years ago
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