Jaden had 2 7/16 yards of ribbon. He used 1 3/8 yards of ribbon to make a prize ribbon. How much does he have now?
2 answers:
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Answer:
The 98% of the confidence interval for the true average salary of Knirhsdaeh employees as a psychology counselor
(75.4206, 86.5794)
Step-by-step explanation:
<u><em>Step(i):-</em></u>
<em>Given that the mean of the sample = $81 k</em>
<em>Given that the size of the sample 'n' = 23</em>
<em>Given that the standard deviation for the salaries is $13 k</em>
<u><em>Step(ii):-</em></u>
<u><em>98% of the confidence interval for the true average salary of Knirhsdaeh employees is determined by</em></u>
<u><em /></u><u><em /></u>
<u><em>Degrees of freedom = n-1 = 23-1 =22</em></u>
<u><em /></u><u><em /></u>
( 81 - 5.57940 , 81 + 5.57940)
(75.4206, 86.5794)
<u><em>Final answer:-</em></u>
The 98% of the confidence interval for the true average salary of Knirhsdaeh employees as a psychology counselor
(75.4206, 86.5794)
Answer:
Given:
In Rhombus QRST, diagonals QS and RT intersect at W and U∈QR and point V∈RT such that UV⊥QR. (shown in below diagram)
To prove: QW•UR =WT•UV
Proof:
In a rhombus diagonals bisect perpendicularly,
Thus, in QRST
QW≅WS, WR ≅ WT and m∠QWR=m∠QWT=m∠RWS=m∠TWS=90°.
In triangles QWR and UVR,
(Right angles)
(Common angles)
By AA similarity postulate,
The corresponding sides in similar triangles are in same proportion,
(∵ WR ≅ WT )
Hence, proved.
