Can someone help me with these 3
1 answer:
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<h3>Answer:</h3>
(2.8×10¹)x⁶y⁴
<h3>Step-by-step explanation:</h3>Multiplication can be done in the usual way, then the number converted to scientific notation. Scientific notation does not apply to the variables.
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If you write the numbers in scientific notation to start, then do the multiplication, the effect is virtually the same: an adjustment is needed in the product to get it back to scientific notation.
(7)(4) = (7×10⁰)(4×10⁰) = 7·4×10⁰⁺⁰ = 28×10⁰ = 2.8×10¹
Answer:
Step-by-step explanation:
Given
The attached image
Solving (a): The area (one side up)
This is calculated as:
Area= Area of semicircle + Area of rectangle
So, we have:
Where:
--- the rectangle dimension
--- the diameter of the semicircle
So, we have:
Solving (b): Area when both leaves are up.
Simply multiply the area in (a) by 2