5x^2+3x-4=0
<span>x^2+3x/5-4/5=0 </span>
<span>x^2+3x/5=4/5 </span>
<span>x^2+3x/5+9/100=89/100 </span>
<span>(x+3/10)^2=89/100 </span>
<span>x+3/10=±(√89)/10 </span>
<span>x=-3/10±√89/100 </span>
<span>x=-3±(√89/10)</span>
The weighted average unit cost after the October 22 purchase is $13.70.
<h3>What is the weighted average unit cost?
</h3>
The weighted average unit cost determines the weighted average cost of all the purchased inventory.
[(300 x 12) + (390 x 15) ] / (300 + 390)
(3600 + 5850) / 690 = $13.70
To learn more about the weighted average method, please check: brainly.com/question/28018617
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Answer:
see below
Step-by-step explanation:
Answer:
<u>10</u> rectangles can fit in the square that has one side 10 cm long.
Step-by-step explanation:
Given:
Rectangle 5 cm multiply 2 cm
.
Square that has one side 10cm long.
Now, to find the number of rectangle that can fits in the square.
So, for getting the number of rectangle we need to get the area first:
Area of rectangle as given 5 cm multiply 2 cm
:
Then the area of square as given side is 10 cm:
Area of square = (side)²
Now, for getting the number of rectangle we divide the area of square by area of rectangle:
Number of rectangle = Area of square ÷ Area of rectangle
Therefore, 10 rectangles can fit in the square that has one side 10 cm long.