Answer:
The answer is 0.9599.
Explanation:
mu (sample) = mu = 8.4
s.d. (sample) = 1.8/ sq. rt. 40
P( greater than 8.1) = (8.9-8.4)/(1.8/ sq. rt. 40)
Let x be the mean time for the 40 mechanics
Standardize the mechanics: (8.9-8.4)/(1.8/ sq. rt. 40) = 1.75 = Z
P( x > 8.9) = P(Z > 1.75), this means the area to the right of Z = 1.75.
Then you need to look in the table of the Normal distribution, Z(1.75) =0.9599
The elements that must be included in an SDS are physical and chemical characteristics, health effects, exposure limits and the origin of the ads.
<h3>What goes in SDS?</h3>
A Safety Data Sheet shows important information about the chemical to be used.
This includes the physical and chemical characteristics of the chemical, and protective measures against its negative effects. The health effects should also be shown.
Find out more on Safety Data Sheets at brainly.com/question/23694150
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B. 60°
∠A = 80°
∠B = ∠A/2 = 80°/2 = 40°
∠C = ?
Sum of all interior angles in a triangle = 180°
180° - 80° - 40° = 60°
∴ the measure of ∠C is 60°.
C₆H₁₂O₆ + O₂ ⇄ CO₂ + H₂O
There are 6 carbons on the left side, so you need at least 6 molecules of CO₂ on the right.
You also have 12 hydrogens on the left, so you need at least 6 molecules of H₂O on the right.
The reaction so far is then
C₆H₁₂O₆ + O₂ ⇄ 6 CO₂ + 6 H₂O
Now, on the left, you have a total of 6 + 2 = 8 oxygens, while on the right, you have 12 + 6 = 18 oxygens. To make up the difference, you need 6 molecules of oxygen:
C₆H₁₂O₆ + 6 O₂ ⇄ 6 CO₂ + 6 H₂O
so the sequence is 1, 6, 6, 6.
