The formula of pi rs represents the formula to find the lateral surface area of a right cone.
Answer:
1926cm²
Step-by-step explanation:
Given
Dimension = 21cm by 18cn by 15cm
<em>The illustration in this question is to determine the surface area of the fabric and this is calculated using the surface area of a cuboid as follows:</em>
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Where L, B and H are the dimensions.
So,





<em>Hence, 1926 cm² of fabrics are needed to cover all surfaces.</em>
Answer:
A
Step-by-step explanation:
By completing the square, y = 2x^2 + 2x +1 will be y=2(x+1/2)^2+(1/2) the minimum point is the vertex of the parabola which is (-1/2, 1/2)
Answer:
50+25=75+x=75x
Step-by-step explanation:
75x nw czy dobrzee