<span>3 root of 343 is 55.5607775324</span>
The answer of 3542=48, if the given is 1243=21 , 2415=36, 3241=25, 4521=27.
Step-by-step explanation:
The given is,
1243=21
2415=36,
3241=25,
4521=27
Step:1
For, 1243 = 21
Above is solved by,
(1+2)×(4+3)=21
(3)×(7)=21
21=21
For, 2415 = 36
Above is solved by,
(2+4)×(1+5)=21
(6)×(6)=36
36=36
For,3241= 25
Above is solved by,
(3+2)×(4+1)=25
(5)×(5)=25
25=25
For, 4521= 27
Above is solved by,
(4+5)×(2+1)=27
(9)×(3)=27
27=27
For, 3542 = ?
Above is solved by,
= (3+5)×(4+2)
=(8)×(6)
3542=48
Result:
The answer of 3542=48, if the given is 1243=21 , 2415=36, 3241=25, 4521=27.
We are given with the expression <span>tan2x / x</span> and asked to evaluate the expression to limit as theta approaches zero. In this case, we substitute first zero. The answer is zero over zero. This is indeterminate so we derive the terms accdg to L'hopital's rule. The derivative is 2 sec^2 2x/1. cos 2x is 1 so is sec^2 2x. Hence the answer is 2.
Using the margin of error for the z-distribution, the sample sizes are given as follows:
a) 822.
b) 1068.
<h3>What is a confidence interval of proportions?</h3>
A confidence interval of proportions is given by:
The margin of error is given by:
In which:
is the sample proportion.
We have a 95% confidence level, hence
, z is the value of Z that has a p-value of 
, so the critical value is z = 1.96.
Item a:
The estimate is of 
, hence we solve for n when M = 0.03.
n = 821.2
A sample of 822 is needed.
Item b:
No prior estimate, hence 
.
n = 1067.11
A sample of 1068 is needed.
More can be learned about the z-distribution at brainly.com/question/25890103
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This can be written 8^(4/3)=(∛8)⁴=2⁴=16.
