A cube has a side length A. The side lengths ate decreased by 20%. Write an expression in simplest form.
2 answers:
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Answer:
Option 3 is correct as Leon multiplied 8 by 2 when he should have raised 8 to a power of 2.
Step-by-step explanation:
Given : Leon evaluated the expression for a=8
(-4(8) - 6) + 82 , (-32-6) + 82 , (-38) + 82 , (-38) + 16 –19 + 16 –3
Leon's work is not so proper , Option 3 is correct as Leon multiplied 8 by 2 when he should have raised 8 to a power of 2.
Correct steps are :
Step 1 :
Step 2 : Put a=8 in the equation we get,
Therefore, correct answer is 26.
Answer:
Step-by-step explanation:
Volume of a pyramid =
Area of the rectangular base = Length × Width
= 8 × 6
= 48 mm²
Volume of the pyramid = 192 mm³
192 =
h =
h = 12 mm
Therefore, all the pyramids having height less than 12 mm will be fitted inside the given pyramid.
Height of the box(mm) Yes/No
10 Yes
13 No
8 Yes