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liubo4ka [24]
3 years ago
14

AO ⊥ (BCD)

Mathematics
1 answer:
Inga [223]3 years ago
4 0

Answer:

V = 272.3 cube units

The surface area is 418.34 square units

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For all real numbers  x  and  y, if  x # y = x(x-y), then x # (x # y) =
kati45 [8]
x\#y=x(x-y)\\\\x\#(x\#y)\\\\x\#y=x(x-y)=x^2-xy\\\\x\#(x\#y)=x\#(x^2-xy)=x[x-(x^2-xy)]=x(x-x^2+xy)\\\\=x^2-x^3+x^2y


x^2-x^3+x^2y=8\\\\x^2(1-x+y)=8\\\\x^2(1-x+y)=2^2\cdot4\iff x^2=2^2\ and\ 1-x+y=4\\\\x=2\ and\ y=4-1+x\\\\x=2\ and\ y=3+2\\\\x=2\ and\ y=5
8 0
3 years ago
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My sisters age is greater than 40 but less than 50. Her age is divisible by 2, 4, 8, and 12. How old is my sister?
Elodia [21]

Answer:

48

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5 0
2 years ago
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Here's the rest of the math questions 17 and 18
Lelu [443]

17. On average, Nestor works 7.5 hours of overtime in 4 weeks, so works an average of 7.5/4 = 1.875 overtime hours per week.

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Each week Rita gets paid for 8×5 + 1.5×3 = 44.5 hours, so is paid

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___

* The half-cent that shows up in Nestor's average weekly pay does not actually show up in Nestor's paycheck. Here, it is an artifact of dividing his monthly hour total by 4 to get a weekly average. Nestor's total pay for any given week is whole number of cents.

7 0
3 years ago
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Pose a question for which a two-way table is appropriate. Be creative here!
arlik [135]
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6 0
3 years ago
Rachel paid $46 in tax for the money she earned
Harman [31]

Answer:

not enough information to give accurate answer

Step-by-step explanation:

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