(GIVING BRAINLIYEST) 7. what is the volume of these 2 objects

Mathematics

2 answers:

inessss [21]3 years ago

6 0

3. 140 m^3
(3 x 6 x 7) + (1 x 2 x 7) = 126 + 14 = 140

4. 216 in^3
(4 x 4 x 9) + (3 x 4 x 6) = 144 + 72 = 216

kati45 [8]3 years ago

4 0

figure #1

smaller part

4x7x2= 56m

larger part

4x3x7= 84m

84+56= 140m³

figure #2

smaller part

2x4x3= 24m

larger part

4x4x12= 192m

192+24= 216in³

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1. From the attached graph you can see that

function is positive for $x\in \left(-\infrty, \dfrac{-15-\sqrt{513} }{4}\right)\cup \left(0,\dfrac{-15+\sqrt{513} }{4}\right);$
function is negative for $x\in \left(\dfrac{-15-\sqrt{513} }{4},0\right)\cup \left(\dfrac{-15+\sqrt{513} }{4},\infty\right).$