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blondinia [14]
3 years ago
15

The dolphin dives 30 feet below the surface of the ocean. What is the dolphin's new elevation?

Mathematics
1 answer:
Lynna [10]3 years ago
6 0

Answer:

-30 feet

Step-by-step explanation:

If ground level is 0, and the dolphin goes 30 feet below 0, then the dolphin's elevation is -30 feet.

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-1(-2x + 4) = 6<br><br> Hellooooooooooo
butalik [34]

Answer:

x=5

Step-by-step explanation:

First we distribute

2x-4=6

isolate x

2x=10

divide both sides by 2

x=5

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6 0
3 years ago
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Help..........................
kogti [31]

Answer:

D

Step-by-step explanation:

I'm not certain but I guess that's it

5 0
2 years ago
A football team has a probability of .75 of winning when playing any of the other four teams in its conference. If the games are
Alexeev081 [22]

Answer:

0.3164 = 31.64% probability the team wins all its conference games

Step-by-step explanation:

For each conference game, there are only two possible outcomes. Either the team wins it, or they lose. The probability of winning a game is independent of any other game. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

A football team has a probability of .75 of winning when playing any of the other four teams in its conference.

The probability means that p = 0.75, and four games means that n = 4

If the games are independent, what is the probability the team wins all its conference games?

This is P(X = 4). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 4) = C_{4,4}.(0.75)^{4}.(0.25)^{0} = 0.3164

0.3164 = 31.64% probability the team wins all its conference games

4 0
3 years ago
Q # 4 find the slope of the line through the pair of points A(2, -3), P(2, 9)
lutik1710 [3]
The answer is 12/0, which is undefined
8 0
3 years ago
Read 2 more answers
What is the answer to the question
LenKa [72]
2x = 18
--------------------
 x = 18 : 2 =
x = 9
-------------------
(2*9 : 3) + 1 = 7
6 + 1 = 7
5 0
3 years ago
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