Answer:
- The product of an even number and an oven number
- The product of an odd number and an odd number
- The product of a perfect cube and a perfect cube
Step-by-step explanation:
The product of two even numbers will have at least two factors of 2, so will be even: <em>even numbers are closed under multiplication</em>.
The product of two odd numbers will be an even number plus 1, so will be odd: <em>odd numbers are closed under multiplication</em>.
The product of two cubes will be the cube of the product of their cube roots: <em>cubes are closed under multiplication</em>.
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The product of two negative numbers will be positive, so <em>the set of negative numbers is </em><em><u>not closed</u></em><em> under multiplication</em>.
Answer:Last choice "That means Mr. Roland’s class was more successful because his class’s lower quartile was the same as Mrs. Cai’s class’s upper quartile.
" is correct.
Step-by-step explanation:
From given scatter plot, we see that upper quartile of Mrs. Cai's class = 4
lower quartile of Mr. Roland’s class = 4
Both are equal so that means.
That means Mr. Roland’s class was more successful because his class’s lower quartile was the same as Mrs. Cai’s class’s upper quartile.
Hence last choice is correct.
Answer:
2/5
Step-by-step explanation:
Flip the second fraction, change the divide to multiply, and simplify:
(1/5)/(1/2) = (1/5) x (2/1) = 2/5
2/5 is your answer.
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Finding 33.3 percent of something is the same as multiplying it by So, which is 33.3(repeating)percent of 81
Answer:
120m²
Step-by-step explanation:
Area¹ = (6*5) = 30*2 surfaces = 60m²
Area² =(6*6) = 36m²
Area of Triangle =(1/2*4*6) = 12* 2 surfaces = 24m²
Total surface area = 60 + 36 + 24 = 120m²
=/120m²