3 years ago

What is 0.00025 in scientific notation

1 answer:

6 0

You just move the decimal as much as you need to to make it a number 1 through 9. Since in this case you're moving it to the right 4 times, you multiply it by 10^-4.

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Evaluate each expression.<br>3^4<br>2^5

umka2103 [35]

Answer:

Step-by-step explanation:

3 to the power of 4 is =81

2 to the power of 5 is =32

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2 years ago

Number 5 pleaseeeeee

Korvikt [17]

The answer is C. y= 3/2 x. You can check by multiplying 3/2 by 3, if you get 7, it is correct

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3 years ago

Oceanside bike rental shop charges fourteen dollars plus nine dollars an hour for renting a bike . Jason paid fifty-nine dollars

Dafna11 [192]

he payed 58 dollars to rent a bike for two hours because 40+9=49 & 49+9=58

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3 years ago

Beaker A contains 1 liter which is 30 percent oil and the rest is vinegar, thoroughly mixed up. Beaker B contains 2 liters which

alekssr [168]

Answer:

1.25 liters of oil

Step-by-step explanation:

Volume in Beaker A = 1 L

Volume of Oil in Beaker A = 1*0.3 = 0.3 L

Volume of Vinegar in Beaker A = 1*0.7 = 0.7 L

Volume in Beaker B = 2 L

Volume of Oil in Beaker B = 2*0.4 = 0.8 L

Volume of Vinegar in Beaker B = 1*0.6 = 1.2 L

If half of the contents of B are poured into A and assuming a homogeneous mixture, the new volumes of oil (Voa) and vinegar (Vva) in beaker A are:

$V_{oa} = 0.3+\frac{0.8}{2} \\V_{oa} = 0.7 \\V_{va} = 0.7+\frac{1.2}{2} \\V_{va} = 1.3$

The amount of oil needed to be added to beaker A in order to produce a mixture which is 60 percent oil (Vomix) is given by:

$0.6*V_{total} = V_{oa} +V_{omix}\\0.6*(V_{va}+V_{oa} +V_{omix}) = V_{oa} +V_{omix}\\0.6*(1.3+0.7+V_{omix})=0.7+V_{omix}\\V_{omix}=\frac{0.5}{0.4} \\V_{omix}=1.25 \ L$

1.25 liters of oil are needed.

6 0

3 years ago

please help me on this I'm struggling on this thanks for your helping of you answer.please show your work:-)

PilotLPTM [1.2K]

A. is 1/4 so that would be 25%
sorry thats all i know

6 0

3 years ago

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