Answer:
Step-by-step explanation:
the figure is divided into a cube and a cuboid
for the cube,
volume = a^3
= 6^3 = 216 cm^3
for the cuboid,
volume = l × b × h
= 13 × 6 × 6
=468 cm^3
so total volume = volume of the cube + volume of the cuboid
= 216 + 468
=684 cm^3
hope this helps
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Answer:
Option 2 and 4
Step-by-step explanation:
The time taken for the smaller pipe to fill the pool by itself is 15.71 hours
<h3>Rate of work</h3>
- Time taken for both pipes = 6 hours
- Time taken for long pipe = x
- Time taken for small pipe = x + 6
- Rate of work of both pipes = 1/6
- Rate of work of long pipe = 1/x
- Rate of work of small pipe = 1/x + 6
1/6 = 1/x + 1/(x+6)
1/6 = (x+6)+(x) / (x)(x+6)
1/6 = (x+6+x) / x²+6x
1/6 = (2x+6)(x² + 6x)
1(x² + 6x) = 6(2x+6)
x² + 6x = 12x + 36
x² + 6x - 12x - 36 = 0
x² - 6x - 36 = 0
x = 9.71 or -3.71
The value of x cannot be negative
Therefore, the
Time taken for long pipe = x
= 9.71 hours
Time taken for small pipe = x + 6
= 9.71 + 6
= 15.71 hours
Learn more about rate of work:
brainly.com/question/24900258
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Answer:
None of them
Step-by-step explanation:
-16 y+13
16(−y+2) = -16 +32
−16(−y+13)
= 16y -208
−16(y+2) = -16y -32
16(−y+13)= -16y+208
a^2 + b^2 =c^2
so to find your answer you do,
16.5^2 - 9.2^2= b^2
key- ^2 is squared (to the power of two) hope this helps x
