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Illusion [34]
3 years ago
14

If x-y=√3, x²-y²=√5 & a²-a√3+1=0, then find out the value of x+y

Mathematics
1 answer:
Lemur [1.5K]3 years ago
4 0

Answer:

√15/3

Step-by-step explanation:

x² - y² =√5

(x +y)*(x -y) = √5

(x +y) * √3 = √5

x+y  = √5 / √3

x +y = √5*√3 / √3*√3

x +y = √15/3

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A recent report stated "Based on a sample of 170 truck drivers, there is evidence to indicate that, on average, independent truc
Aliun [14]

Answer:

The given statement describe inferential statistics.    

Step-by-step explanation:

Descriptive Statistic:

  • It helps us to summarize a given data set.
  • It could describe the entire population or a sample from the population.
  • There are two types of descriptive measures: measures of central tendency and measures of variability
  • Central Tendency: Mean, mode, Median
  • Measure of Viability: Standard Deviation, Variance, Range, Interquartile range

Inferential Statistic:

  • It s the process of estimating population parameter with the help of a sample from the population.
  • A random sample from the population is used to describe the population with the help of sample statistic.

Given Scenario:

"Based on a sample of 170 truck drivers, there is evidence to indicate that, on average, independent truck drivers earn more than company-hired truck drivers."

Thus, this is an example of a inferential statistics as a sample was used to estimate the population.

Here,

Sample:

Sample of 170 truck drivers

Population:

All truck drivers.

With the help of a sample, we approximated the population, thus, this statement describe inferential statistics.

8 0
3 years ago
Can some one help who actually knows the answer!
Naya [18.7K]

Answer:

well explict means stated clearly and in detail, leaving no room for confusion or doubt. and implict means implied though not plainly expressed.

Step-by-step explanation:

6 0
2 years ago
The record low temperature in Oklahoma was -31°F. The record low temperature in South Dakota is 27°F lower than -31°F. What is t
zhannawk [14.2K]
The record low temperature is -58°F
4 0
3 years ago
1. The sum of Teresa's and Cathy's weight is
sergeinik [125]

Answer:

d

Step-by-step explanation:

E is ththe answer

the first equation should be T + C = 118 and the second equation should be C + 26 = T

none of these equations are correct

4 0
2 years ago
There are 24 boys and 16 girls in a hall, each holding coins in their hand.The mean number of coins for the children is 11, The
Karolina [17]

Answer:

14

Step-by-step explanation:

The computation of the mean number of coins for the girls is shown below:

Since there are 24 boys and 16 girls so the total children is 40

So the number of coins for all children is

= 40 × 11

= 440

And, the number of coins for all boys is

= 9 × 24

= 216

Now the mean is

= (440 - 216) ÷ 16 girls

= 14

4 0
3 years ago
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