Answer:
we need to shift decimal then divide
Step-by-step explanation:
Answer:
The complex solutions are

Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given equation 7 x² - 7 x +3=0

Given standard equation
a x² +b x +c =0
a = 7 , b= -7 and c=3
<u><em>Step(ii):-</em></u>
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I think the answer is a or d not sure
Answer:
20
Step-by-step explanation:
Answer:
<u>The volume of a mound of salt-sand mixture is 589.05 feet ³ or 589.05 cubic feet.</u>
Step-by-step explanation:
1. Let's check the information given to resolve the question:
Diameter of a mound of the mixture = 15 feet
Height (h) of the mound of the mixture = 10 feet
How much salt-sand mixture is there?
2. Let's find the volume of a mound of mixture with a conical shape:
For doing that, we need to use the volume formula of a cone.
It's: 1/3 * π * r² * h
Replacing with real values, we have:
1/3 * 3.1416 * 7.5 ² * 10 (Diameter = 15, so radius = Diameter/2 = 15/2 = 7.5)
Volume = 1/3 * 3.1416 * 56.25 * 10
Volume = 1/3 * 3.1416 * 562.5 (56.25 * 10 = 562.5)
<u>Volume = 187.5 * 3.1416 = 589.05 feet ³ or 589.05 cubic feet.</u>