Use the rules of significant figures to find the answer to the addition problem S= 25.4+14+16.67+3.903

1 answer:

6 0

S=59.973 all you have to do now is round it. So the real answer is S=60. All i did was add up all the numbers.
$25.4 + 16.67 = 42.07 + 3.903 = 45.973 + 14 = 59.973$

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ABC is the middle line of MN in an equilateral triangle. If AB = 8 cm, then find the perimeter MBN.

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Step-by-step explanation:

since the triangle is equilateral meaning all side of ABC is equal to each other AB= BC = AC= 8cm and MN is the middle line that divides AB and BC by two

thus, MB =BN= 4 cm. MN is the middle line thus will also be equal to the half of AC meaning MN=AC/2= 4cm. and perimeter is MBN = MN+MB+BN= 4cm+4cm+4cm =12cm

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