Answer: 76
Step-by-step explanation:
32x2=64
64+12
Answer:
8x-7y=6
or, -7y=-8x+6
or, y=8x/7-6/7
so the slope is 8/7
8x-y=-8
or, -y=-8x-8
or, y=8x+8
So the slope is 8
Both has different slope and they don't satisfy the property of being perpendicular to each others, so they're neither parallel nor perpendicular.
Answered by GAUTHMATH
Answer:
<u>Use the following identity:</u>
- a³ + b³ + c³ = 3abc if a + b + c = 0
<u>Substitute:</u>
<u>and get:</u>
- (3x)³ + (5y)³ + (4z)³ = 3(3x)(5y)(4z)
- 27x³ + 125y³ + 64z³ = 180xyz
Answer:
3.12 kg.
Step-by-step explanation:
Mass after t years:
The mass of the elements after t years is given by the following equation:
In which M(0) is the initial mass and r is the decay rate, as a decimal.
The half life of Cs-137 is 30.2 years.
This means that:
We use this to find r.
So
If the initial mass of the sample is 100kg, how much will remain after 151 years?
This is M(151), with M(0) = 100. So
The answer is 3.12 kg.