Answer:
1442
Step-by-step explanation:
Given,
Mean is,

Standard deviation,
,
Margin of error(E) = 0.54,
For 98% level of confidence, 
Thus, the sample size would be,
![n=[\frac{z_{\frac{\alpha}{2}}\times \sigma}{E}]^2](https://tex.z-dn.net/?f=n%3D%5B%5Cfrac%7Bz_%7B%5Cfrac%7B%5Calpha%7D%7B2%7D%7D%5Ctimes%20%5Csigma%7D%7BE%7D%5D%5E2)
![=[\frac{2.33\times 8.8}{0.54}]^2](https://tex.z-dn.net/?f=%3D%5B%5Cfrac%7B2.33%5Ctimes%208.8%7D%7B0.54%7D%5D%5E2)


Answer:
x = ±2√10
Step-by-step explanation:
40 - x² = 0
⇌
(√40 - x)(√40 + x) = 0
⇌
x = √40 or x = -√40
we can go further and say that √40 = 2√10
Answer:
Should be P(A∩B)=P(A)⋅P(B)
Below are \triangle ABC△ and \triangle DEF△DEFtriangle, D, E, F. We assume that AB=DEAB=DEA, B, equals, D, E, BC=EFBC=EFB, C, eq
Novay_Z [31]
Answer:
- (A) AB = DE and segments with same length are congruent
Step-by-step explanation:
Justification of step 1 is based on the congruence of segments AB and DE.
<u>Therefore correct choice is the first one:</u>
- (A) AB = DE and segments with same length are congruent
Answer: 
<u>Step-by-step explanation:</u>
Blue = 5, Red = 3, Green = 2, Total = 10
Probability = First draw and Second draw
=
x
= 
=