The LCM<span> of 42 and 54 is 378.</span>
Answer:
D. x + 2y = 2
Step-by-step explanation:
0 + 2(1) = 2
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Culvert is a tunnel, therefore we can use the volume and area formula of a cylinder.
Circumference is given such as 280 cm and the circumference formula of a circle is C = 2*pi*r
Solving for the radius, we have:
280 = 2*3.14*r
r = 280/2*3.14
r = 44.59 cm
Area of one end:
Area = pi*r²
Area = 3.14 * 44.59²
Area= 6,243.2 cm²
The total area is times two of area since there were two ends in the culvert.
Total area = 6243.2 * 2
Total area = 12,486.32 cm²
Answer:
Step-by-step explanation:
To the nearest 1d.p=3.9
To the nearest hundredth=3.87