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Rashid [163]
2 years ago
15

HELP FAST!!!!!!!!! ____ heat is the energy required for 1 kg of a substance to change phase

Mathematics
1 answer:
never [62]2 years ago
5 0

Answer:

The specific latent heat.

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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
The product of 6 and the total of z and 9
tatiyna

Answer:

6(z+9)

ANSWER: 6z+54

z=9

Step-by-step explanation:

mm, im sorry they didn't answer this yesterday

7 0
2 years ago
Which person would be eligible to run for president of the United States in the Election of 2020?
Temka [501]

Answer:

C. Tiffany, born in 1973 in Nebraska, has lived in the U.S. for 45 years

Step-by-step explanation:

its right bro

5 0
3 years ago
Read 2 more answers
Hi everyone,can someone please help me with this question please help me I really really need help please answer it correctly
Allisa [31]

Answer:

the fourth which passed through (0;2)

7 0
2 years ago
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Simplify the following cos(-x)tanx
RSB [31]
\bf \textit{symmetry identites}\\\\
cos(-\theta)=cos(\theta)\\\\
-----------------------------\\\\
cos(-x)tan(x)\implies cos(-x)\cdot \cfrac{sin(x)}{cos(x)}\\\\\\ cos(x)\cdot \cfrac{sin(x)}{cos(x)}\implies sin(x)
8 0
3 years ago
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