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Alex_Xolod [135]
3 years ago
11

I will give you are brainliest if you answer answer question 36 and 37

Mathematics
1 answer:
alekssr [168]3 years ago
8 0

Answer:

36) A, 396

37) D, 114 km per lit

Step-by-step explanation:

36) 404 - 8 = 396

37) 112 / 8 = 14

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Help PLZ I am failling math​
harina [27]
There number rounds to 3000 so divide that by 11 and round up your answer
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5 0
3 years ago
You have $44000 in a savings account that pays 2% annual interestand the inflatation rate is 3.24%. How much buying power in dol
puteri [66]
At the end of the year ...
   the price will be 44,000*1.0324 = 45,425.60
   the bank balance will be 44,000*1.02 = 44,880.00

This is 545.60 fewer dollars than required to pay the price.

You lose $545.60 in current-year buying power.
4 0
4 years ago
According to 2015 census data, 42.7 percent of Colorado residents were born in Colorado. If a sample of 250 Colorado residents i
stepladder [879]

Answer:

sd(X)=\sqrt{np(1-p)}=\sqrt{250*0.427*(1-0.427)}=7.82

The best option is:

B.7.82

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".  

Data given

p_C represent the real population proportion for residents born in Colorado  

\hat p_C =0.427 represent the estimated proportion for rsidents born in Colorado

n_C=250 is the sample size selected

Solution to the problem

Let X the random variable of interest (number of residents in the sample), on this case we now that:  

X \sim Binom(n=250, p=0.427)  

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!}  

The expected value is given by this formula:

E(X) = np=250*0.427=106.75

And the standard deviation for the random variable is given by:

sd(X)=\sqrt{np(1-p)}=\sqrt{250*0.427*(1-0.427)}=7.82

The best option is:

B.7.82

8 0
3 years ago
Perform the indicated operation. 1 3/4 · 7/3? a.3/4 b.41/12 c.121/12 d.23/4
castortr0y [4]

Answer:

\huge\boxed{b.\ 4\dfrac{1}{12}}

Step-by-step explanation:

1\dfrac{3}{4}\cdot\dfrac{7}{3}

convert the mixed number to the improper fraction:

1\dfrac{3}{4}=\dfrac{1\cdot4+3}{4}=\dfrac{7}{3}

multiply:

=\dfrac{7}{4}\cdot\dfrac{7}{3}=\dfrac{7\cdot7}{3\cdot4}=\dfrac{49}{12}=\dfrac{48+1}{12}=\dfrac{48}{12}+\dfrac{1}{12}=4\dfrac{1}{12}

6 0
3 years ago
If i put $1500 into my savings account and earned $180.00 of interest at 4% simple intrest,how long was my momey in the bank?
Vikentia [17]
If you multiply $1500 by 0.04 which is 4% you get $60 from the interest and if you multiple $1560X0.04=$62.40 and if you repeat the posses 1 more time you earn $64.90 more from interest so in total it was three blocks of 4% interest was earned.<span />
3 0
4 years ago
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