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3 years ago

Charlotte is running a rate of 9 km per hour. What is her rate at meters per second?

1 answer:

8 0

1 km = 1000 meters and 1 hour = 3600 seconds.

9x1000= 9000

9000/3600= 2.5

Your answer would be 2.5 meters per second.

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If a → b is true, then ~a → b is also true.

Rasek [7]

Answer:

False

Step-by-step explanation:

To determine whether the statemaent "If $a\Rightarrow b$ is true, then $\neg a\Rightarrow b$ is also true" holds, you can form the truth table:

$\begin{array}{ccccc}a&b&a\Rightarrow b&\neg a&\neg a\Rightarrow b\\1&1&1&0&1\\1&0&0&0&1\\0&1&1&1&1\\0&0&1&1&0\end{array}$

When the result of the column $a\Rightarrow b$ takes value 1 (true), the result of the column $\neg a\Rightarrow b$ is not always 1, then the statement is false.

7 0

3 years ago

What is a coefficient ?

Ahat [919]

A coefficient is a number that is attached to a term.

For example:

3x² - 5x + 6 = 0

The coefficient of x² is 3.

The coefficient of x = -5.

Hope this explains it.

8 0

3 years ago

You used a 35% off coupon and purchased a skateboard for 55.25. What was the original price of the skateboard?

Firlakuza [10]

Answer: It should be 74.5875

Step-by-step explanation: If you did 0.35*55.25= you should get a number then if you add that with the discounted price, $55.25, you should get 74.5875

7 0

3 years ago

Solve for p 2(p + 1) = 24

Makovka662 [10]

Answer:

p=11

Step-by-step explanation:

2(p + 1) = 24

Divide each side by 2

2/2(p + 1) = 24/2

p+1 = 12

Subtract 1 from each side

p+1-1 = 12-1

p =11

4 0

3 years ago

Need some help I'm stuck on this question in the image <br><br>thank you

saw5 [17]

Answer:

i think it's C

Step-by-step explanation:

i am very sorry if im wrong

3 0

2 years ago