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Oduvanchick [21]
2 years ago
12

Double integral of e^y/x dy dx with outer limits as 0 and 2 and inner limits as 0 and x^2 ???

Mathematics
1 answer:
algol [13]2 years ago
4 0
\int\limits^2_0 \int\limits^{x^2}_0 {\frac{e^y}{x}} \, dydx = \int\limits^2_0 (\frac{e^{x^2}-1}{x})} \, dx = 8.83
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Suppose that in a certain county 37% of voters are registered as Democrats, 29% as Republicans, 7% as Green party, and the rest
Fantom [35]

Answer:

0.66

Step-by-step explanation:

GIVEN: Suppose that in a certain county 37\% of voters are registered as Democrats, 29\% as Republicans, 7\% as Green party, and the rest are considered Independents. You conduct a poll by calling registered voters in the county at random.

TO FIND: Probability that the first call will be to either a Democrat or a Republican.

SOLUTION:

Lets total population of county be 100x.

voters registered as Democrats =37\%=\frac{37}{100}\times100x

                                                     =37x

voters registered as Republicans =29\%=\frac{29}{100}\times100x

                                                       =29x

voters registered as Green party =7\%=\frac{7}{100}\times100x

                                                       =7x

Probability that first call will be to Democrats P(A)=\frac{\text{total democrats}}{\text{total voters}}

                                                                                    =\frac{37x}{100x}=0.37

Probability that first call will be to Republican P(B)=\frac{\text{total republicans}}{\text{total voters}}

                                                                                     =\frac{29x}{100x}=0.29

probability that the first call will be to either a Democrat or a Republican

=P(A)+P(B)

=0.37+0.29

=0.66

Hence the probability that the first call will be to either a Democrat or a Republican is 0.66

6 0
3 years ago
Gary is 8 years older than his brother. Six years ago Gary was three times as old as his brother. How old are they now?
Yuliya22 [10]

Answer:Gary-18 years brother-10 years

Step-by-step explanation:1st case: brother=1 yrs,gary=3 yrs=>after 6 after: brother =7 yrs gary=9 years

2nd case:......

3rd case:.....

4th case:brother:4 years gary:12 yrs=>after 6 yrs:brother=10 yrs gary=18 yrs=>18-10=8

8 0
3 years ago
Find the equivalent ratio with greater terms. (show work)
kipiarov [429]
A 42 24÷16 =1.5 1.5×28 =42 b i think its 78.4 im not sure
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A painting is 6 in tall and 4 in wide. if it is reduced to a width of 2 in then how tall will it be?
Vlada [557]

6 inches squared is your answerStep-by-step explanation:4/2=2 6/2=3

3times 2 equals 6

8 0
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