<em>Answer:</em>
for question 4 the asnwer is 1.7
for question 6 the answer is 2
<em>Explanation: </em>
The volume of 4 is 18 length × width × height so 3 × 3 × 2 = 18
The mass 32kg divided by the volume 18 = 1.777777778
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The volume of 6 is 90 length × width × height so 10 × 3 × 3 = 90
The mass 180kg divided by the volume 90 = 2
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<em>Hope it helps, if you have any question comment down!</em>
Answer:
Step-by-step explanation:
Given :
l + m + n = 9
l²+ m² + n²= 31
l + m + n = 9
On squaring both sides
(l + m + n)²= 9²
(l²+m²+n²+2(lm+mn+nl) = 81
31 +2(lm+mn+nl) = 81
2(lm+mn+nl) = 81 - 31
2(lm+mn+nl) = 50
(lm+mn+nl) = 50/2
(lm+mn+nl) = 25
Hence, the value of (lm+mn+nl) = 25
Answer:
yes
Step-by-step explanation:
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