Which numbers are irrational
√196
√80
√18
√12
7\18
2 answers:
7/18 because its a fraction and it does not have a rational sign on it
Answer:
sqrt(80)
sqrt(18)
sqrt(12)
Step-by-step explanation:
sqrt(196) = 14 which is rational.
7/18 is a fraction. There is nothing the matter with it. It is rational.
sqrt(80) = sqrt(16 * 5) = sqrt(4*4* 5) = 4 sqrt(5) which is irrational.
sqrt(18) = sqrt(9*2) = sqrt(3*3*2) = 3*sqrt(2) which is irrational.
sqrt(12) = 2sqrt(3) which is irrational
Rule: if there is anything left under the root sign then the starting number is irrational.
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Solution :
Given :
Sample mean,
Sample size, n = 40
Standard deviation, s = 83.2
∴ The null hypothesis is
Alternate hypothesis is
Test statistic :
z = 0.813
Now at α = 0.05, for a right tailed,
Since, , we fail to reject the null hypothesis.
Step-by-step explanation:
12, 9 plus 3 is 12 jebxuenxhdndb
Answer:
x-intercept(s):
(7,0),(−7,0)
y-intercept(s):
(0,−49)
Step-by-step explanation:
Answer:
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Step-by-step explanation:
Answer: False.
Step-by-step explanation:
48 is not a common factor of 4 and 6
4 and 6 only share 2 factor: 1 and 2
Factors in 4: 1, 2, 4
Factors in 6: 1, 2, 3, 6