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2 years ago

Roberto finished 2/3 of the race in 4 hours. How long is the entire race?

Mathematics

2 answers:

Tcecarenko [31]2 years ago

6 0

Answer:

6 hours

Step-by-step explanation:

because it took 4 hours to do 2/3 meaning that in one hour it took 2 hours so due to 3/3 being done at 2 hours a piece puts it at 6 hours

ivann1987 [24]2 years ago

6 0

6 Hours.
Just racking up points.

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ExtremeBDS [4]

The correct answer is A

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3 years ago

Please select the best answer from the choices provided

Ira Lisetskai [31]

<u>Answer:</u>

The correct answer option is c. $\frac{1}{9a^2}$ .

<u>Step-by-step explanation:</u>

We are given an expression $(27a^{-3})^{-\frac{2}{3} }$ and we are supposed to simplify it.

We can also write $(27a^{-3})^{-\frac{2}{3} }$ as $(\frac{3^3}{a^3} )^{-\frac{2}{3} }$ .

We know the power rule (a^m)^n=a^{mn} which means that to raise a power to a power you need to multiply the exponents.

So multiplying the exponents to get:

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3 years ago

Solve 3x^2 6x=12 by quadratic formula

kari74 [83]

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3 years ago

What is the truth value for the following conditional statement?

Studentka2010 [4]

Answer:

TT→T

Step-by-step explanation:

If p is false, then ~p is true.

If q is false, then ~q is true.

Now note that

If a and b are both true, then a→b is true.
If a is true, b is false, then a→b is false.
If a is false, b is true, then a→b is true.
If a and b are both false, then a→b is true.

In your case, both~p and ~q are true, then ~p→~q is true too (or TT→T)

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olga55 [171]

Answer:

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Step-by-step explanation:

lol I couldn't find the degree symbol so I just did that

hope this helps :)

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