With
a standard deviation of 6 minutes, we will test the hypothesis that σ = 6
against the alternative that σ < 6 if a random sample of the test
times of 20 high school seniors has a standard deviation s = 4.51. use a
0.05 level of significance.
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The correct answer is1D k 2D k 3Dk
Perimeter= 20inches
Area= 5×4=20inches squared(area of square)
= 1/2 ×( 4×3 )
=6 inches squared(area of triangle)
20 + 6 = 26 inches squared
By the difference of "5 and a number", I assume you mean that number minus 5. In that case, the expression is 8 times (x-5).
If by "the difference of 5 and a number" you mean 5 minus that number, then the expression is 8 times (5-x).
< DAF and <EAD are supplementary ( both on same straight line FE)
but we are given that <EAD = <BAE ( as AE bisects <BAD)
Therefore <BAE and <DAF are supplementary.
