3 years ago

Whats the difference between the square root and the principal Square root?

1 answer:

6 0

Answer:

Although the principal square root of a positive number is only one of its two square roots, the designation "the square root" is often used to refer to the principal square root. For positive x, the principal square root can also be written in exponent notation, as x1/2.

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What type of number is π/2

sweet-ann [11.9K]

Answer:

Step-by-step explanation:

whole number No

integer No

rational : No, because pi is irrational.

irrational: YES. π/2 is the ratio of pi to 2, BUT pi is irrational.

7 0

3 years ago

Factor completely. 2x2 - 18x + 36 = Stuck? Use a hint. Rep 3

asambeis [7]

Try 2(20-9x) or 40-18x

3 0

3 years ago

A common practice of airline companies is to sell more tickets for a particular flight than there are seats on the plane, becau

Serga [27]

Answer:

0.0159

Step-by-step explanation:

Given that a common practice of airline companies is to sell more tickets for a particular flight than there are seats on the plane, because customers who buy tickets do not always show up for the flight.

Here if X is the no of persons that do not show up, then X is binomial as each trial is independent with p = 0.04 and n =150 (no of tickets sold)

The plane is overbooked if more than 150 show up

i.e. less than 2 do not show up

Hence the probability that the airline overbooked this flight

= $P(X$

4 0

3 years ago

Find the equation of the axis of symmetry for the parabola y=5x2

Dima020 [189]

Answer:

X=0

Step-by-step explanation:

3 0

3 years ago

9 unit percent change is 23, what is the 19th unit percent cahnge?

vichka [17]

Answer:

42.40705%

Step-by-step explanation:

(1 - (23/100)^(19/9) = 1 + r/100

0.57593 = 1 + r/100

r = 42.40705%

6 0

2 years ago