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Veronika [31]
3 years ago
5

Laurie was scuba diving. Each time she dove 5 feet deeper, she would stop and clear her ears. Each time that this totaled 20 fee

t deeper, she would stop and check her instruments to make sure they were working properly. After Laurie had checked her instruments 3 times, she was at her maximum depth. Which expression best represents Laurie’s maximum depth?
Mathematics
2 answers:
EastWind [94]3 years ago
7 0

Answer:

your answer is (4)(-5)(3)

Step-by-step explanation:

HOPE I HELPED!!!!!

PLEASE MARK ME AS BRAINLIEST PLS I WOULD BE HAPPY IF YOU DID!!

Mumz [18]3 years ago
7 0

Answer:

i will make a random answer for you to get brainliest

Step-by-step explanation:

have a good day

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Which one of the following functions is an exponential decay function?
stepan [7]

Answer:

D

Step-by-step explanation:

Its decaying since its being multiplied by by a number less than 1

6 0
2 years ago
Read 2 more answers
While completing a race, Will spent 14 minutes walking. If his ratio of time walking to jogging was 7 : 6, how many minutes did
worty [1.4K]

Answer:

12 minutes

Step-by-step explanation:

\frac{7}{6} =\frac{14}{x}

7x=84

x=12

So, he spent 12 minutes jogging.

8 0
3 years ago
A real estate agent has 19 properties that she shows. She feels that there is a 30% chance of selling any one property during a
netineya [11]

Answer:

P(X \geq 5)=1-P(X

We can find the individual probabilities:

P(X=0)=(19C0)(0.3)^0 (1-0.3)^{19-0}=0.00114

P(X=1)=(19C1)(0.3)^1 (1-0.3)^{19-1}=0.0092

P(X=2)=(19C2)(0.3)^2 (1-0.3)^{19-2}=0.0358

P(X=3)=(19C3)(0.3)^3 (1-0.3)^{19-3}=0.0869

P(X=4)=(19C4)(0.3)^4 (1-0.3)^{19-4}=0.1491

And replacing we got:

P(X \geq 5) = 1-[0.00114+0.009282+0.0358+0.0869+0.149]= 0.7178

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest, on this case we now that:

X \sim Binom(n=19, p=0.3)

The probability mass function for the Binomial distribution is given as:

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

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

And we want to find this probability:

P(X \geq 5)

And we can use the complement rule:

P(X \geq 5)=1-P(X

We can find the individual probabilities:

P(X=0)=(19C0)(0.3)^0 (1-0.3)^{19-0}=0.00114

P(X=1)=(19C1)(0.3)^1 (1-0.3)^{19-1}=0.0092

P(X=2)=(19C2)(0.3)^2 (1-0.3)^{19-2}=0.0358

P(X=3)=(19C3)(0.3)^3 (1-0.3)^{19-3}=0.0869

P(X=4)=(19C4)(0.3)^4 (1-0.3)^{19-4}=0.1491

And replacing we got:

P(X \geq 5) = 1-[0.00114+0.009282+0.0358+0.0869+0.149]= 0.7178

4 0
3 years ago
There are 5 buses, and each of these buses is taking 37 people to a game. Another bus is taking 9 people. How many people are th
Nina [5.8K]

Add 37 + 9 = 46

If thats not your answer theres more.

46 divided by 5 = 9.2

4 0
3 years ago
e.Water has a density of about 0.0361 pounds/cubic inch. You might know that wood floats on water. What can you conclude about t
irina1246 [14]

Answer:

Step-by-step explanation:

the objects which have less density than water will float

and the objects which have more density than the density of liquid will sink in liquid or will not float.

8 0
1 year ago
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