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nlexa [21]
3 years ago
6

Z=x/y -3r make x the subject

Mathematics
1 answer:
satela [25.4K]3 years ago
6 0
Z = x-y(3r)/y
z = x-y * 3r/y
Final answer: x = yz + 3yr
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3 years ago
Petrol at a place costs 187/ 4 Rs/litre. what is the cost of 35 litres of petrol ?
galben [10]

Answer:rs 1636.25

Step-by-step explanation:

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4 years ago
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About 78% of the US, population claims that they visit the dentist at least once a year. simple random sample of 200 people is s
Blababa [14]

Answer:

D) 0.78, 0.029

Step-by-step explanation:

Central Limit Theorem:

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

About 78% of the US, population claims that they visit the dentist at least once a year.

This means that p = 0.78

Random sample of 200 people:

This means that n = 200

Mean and standard deviation of the sampling distribution:

By the Central Limit Theorem

Mean \mu = 0.78

Standard deviation s = \sqrt{\frac{0.78*0.22}{200}} = 0.029

So the correct answer is given by option D.

7 0
3 years ago
Find an equation of the plane. the plane through the point (2, 0, 5) and perpendicular to the line x = 7t, y = 6 − t, z = 4 + 5t
My name is Ann [436]
Given:
P: (2,0,5)
L: (0,6,4)+t(7,-1,5)
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The direction vector of L is V=<7,-1,5>.
For &Pi; to be perpendicular to V, &Pi; has V as the normal vector.

The equation of a plane with normal vector <7,-1,5> passing through a given point P(xp,yp,zp) is
7(x-xp)-1(y-yp)+5(z-zp)=0

Thus the equation of plane &Pi; passing through P(2,0,5) is
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or alternatively,
7x-y+5z = 14+25 
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4 0
3 years ago
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Natasha_Volkova [10]

Answer:

yes, its linear and proportional .

Step-by-step explanation:

In mathematics, two varying quantities are said to be in a relation of proportionality, if they are multiplicatively connected to a constant, that is, when either their ratio or their product yields a constant. The value of this constant is called the coefficient of proportionality or proportionality constant.

you just have to graph it .

hope i helped :) !!! brainliest ??

7 0
3 years ago
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