We can determine that the ratio is simplified by checking that the numbers in ratio can be divided with the same number, if it can be divided then it is not simplified for example 9:12 is the ratio and we can divide both numbers with 3 and then we get 3 : 4.
Now we cannot divide 3:4 further with any same number so this is simplified form.

3 0

3 years ago

At the Canada Open Tennis Championship, a statistician keeps track of every serve that a player hits during the tournament. The

kondaur [170]

Answer:

a) 54 mph to 144 mph

Step-by-step explanation:

We don't know the shape of the distribution, so we use Chebyshev's Theorem to solve this question. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

At least eight-ninths of the player's serves.

8/9 is approximately 89%

Mean: 99, standard deviation: 15

99 - 3*15 = 54

99 + 3*15 = 144

So the correct answer is:

a) 54 mph to 144 mph

8 0

3 years ago

What are real-world examples of translation, reflection, rotation, and dilation\stretch.

bonufazy [111]

Answer:

Translation: Moving an apple from one area to another area.

Reflection: Mirrors.

Rotation: Rotating a car wheel.

Step-by-step explanation:

4 0

4 years ago

The ages of Lee's mother and aunt total 83 years. If her mothers age were doubled, then her mother would be 58 years older than

NemiM [27]

Answer:

sorry i dont know

Step-by-step explanation:

6 0

3 years ago