Answer:
3(3+7)
Step-by-step explanation: you factor out the greatest common multiple. 3 times 3 is 9 and 3 times 7 is 21
9514 1404 393
Answer:
106
Step-by-step explanation:
Each of the whole numbers could be 4 greater than the value it is rounded down to. Then the maximum original sum is ...
90 +4 +4 +4 +4 = 106
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<em>Example</em>
The numbers could be 14, 24, 34, 34. Their rounded values are 10, 20, 30, 30, for a total of 90. The total of the original numbers is 106.
Answer:
96 cm²
Step-by-step explanation:
The lateral surface area (A) is the sum of the areas of the 4 slant faces.
The faces are triangular with area
bh , thus
A = 4 ×
× 8 × 6 = 2 × 48 = 96 cm²