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lora16 [44]
3 years ago
5

How to get a square root of a given number​

Mathematics
2 answers:
bonufazy [111]3 years ago
8 0

Answer:

See below

Step-by-step explanation:

The square root of a number is defined as \pm y=\sqrt[2]{x} where (\pm y)^{2} gives the original number. For example, \sqrt{4}=\pm2 because 2^{2}=2*2=4 and (-2)^{2}=-2*-2=4.

nlexa [21]3 years ago
4 0

Example of Calculating Square Roots with Multiplication :

  • The square root of 9 is 3. The number 9 is an integer. This number comes from multiplying 3×3 which results in the number 9
  • The square root of 25 is 5. The number 25 is an integer. This number comes from multiplying 5×5 which results in the number 25
  • The square root of 81 is 9. The number 81 is an integer. This number comes from multiplying 9×9 which results in the number 81
  • The square root of 100 is 10. The number 100 is an integer. This number comes from multiplying 10×10 which results in the number 100

Example of Calculating Square Roots by Division

  • The square root of 4 is 2. The number that divides 4 is the number 2, like 4: 2 makes the number 2. It cannot be divided anymore and can be multiplied by itself.
  • The square root of 9 is 3. The number that divides 9 is the number 3, such as 9: 3 to produce the number 3. It cannot be divided anymore and can be multiplied by itself.
  • The square root of 25 is 5. A number that divides 25 is 5, as 25:5 makes 5. It is indivisible and can be multiplied by itself.
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WILL NAME BRAINLIST PLEASE
algol13

Answer:

x = -4y

<em>Hope that helps! :)</em>

<em>-Aphrodite</em>

Step-by-step explanation:

3 0
3 years ago
The diameters of ball bearings are distributed normally. The mean diameter is 87 millimeters and the standard deviation is 6 mil
devlian [24]

Answer:

69.14% probability that the diameter of a selected bearing is greater than 84 millimeters

Step-by-step explanation:

According to the Question,

Given That, The diameters of ball bearings are distributed normally. The mean diameter is 87 millimeters and the standard deviation is 6 millimeters. Find the probability that the diameter of a selected bearing is greater than 84 millimeters.

  • In a set with mean and standard deviation, the Z score of a measure X is given by Z = (X-μ)/σ

we have μ=87 , σ=6 & X=84

  • Find the probability that the diameter of a selected bearing is greater than 84 millimeters

This is 1 subtracted by the p-value of Z when X = 84.

So, Z = (84-87)/6

Z = -3/6

Z = -0.5 has a p-value of 0.30854.

⇒1 - 0.30854 = 0.69146

  • 0.69146 = 69.14% probability that the diameter of a selected bearing is greater than 84 millimeters.

Note- (The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X)

7 0
3 years ago
Craig likes to collect video records last year he had 10 records his collection now has 12 records what is the percent increase
algol [13]
I believe the answer is a 20% increase because 12-10 equals 2. there is a 2 record difference so 2 out of 10 is 1/5 of the whole, but you have to convert the numbers and 1/5 of the whole of 100 is 20. sorry if that didn’t make much sense
6 0
2 years ago
Read 2 more answers
During a 10-day period, the balance of Martas chexking account dropped $290. Write a division expression ro represent the change
LenKa [72]
I did x - 10 =290 
           +10   +10
            -------------
             x = 300   so they took $1.00 a day
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Given that f(x) = x2 − 4x − 3 and g(x) = x+3 over 4 , solve for f(g(x)) when x = 9
borishaifa [10]
9+3 =12
12/4 = 3

(3)2-4(3)-3
6-12-3
-9 is the answer
8 0
3 years ago
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