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3 years ago

The x- and y- coordinate have opposite signs

Mathematics

1 answer:

Sladkaya [172]3 years ago

8 0

Please explain in more detail.

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Seven weightlifters are competing in the dead-lift competition. In how many ways can the weightlifters finish first, second, and

Airida [17]

I think the answer is 21 you just multiply the number of weightlifters by the number of places so 7 x 3.

7 0

3 years ago

After the 4th half life how much of the sample is left if the mass is 100g.

vazorg [7]

Answer:

$\huge\boxed{\sf 6.25 \ g}$

Step-by-step explanation:

After every Half life , Half of the mass is left.

After 1st Half life = 100 g / 2 = 50 g

After 2nd Half life = 50 / 2 = 25 g

After 3rd Half life = 25 / 2 = 12.5 g

After 4th Half life = 12.5 / 2 = 6.25 g

$\rule[225]{225}{2}$

Hope this helped!

6 0

3 years ago

If A and B are independent events, P(A) = 0.25, and P(B) = 0.3, what is P(AB)?

Marrrta [24]

Answer:

$P(A) = 0.25, P(B= 0.3$

And if we want to find $P(A \cap B)$ we can use this formula from the definition of independent events :

$P(A \cap B) =P(A) *P(B) = 0.25*0.3= 0.075$

And the best option would be:

$P(A \cap B) =0.075$

Step-by-step explanation:

For this case we have the following events A and B and we also have the probabilities for each one given:

$P(A) = 0.25, P(B= 0.3$

And if we want to find $P(A \cap B)$ we can use this formula from the definition of independent events :

$P(A \cap B) =P(A) *P(B) = 0.25*0.3= 0.075$

And the best option would be:

$P(A \cap B) =0.075$

3 0

3 years ago

Write this rate as a unit rate.<br> 7/5<br> ——<br> 2/3<br> What is the unit rate

stiv31 [10]

Answer:

1.4 ,0.667

Step-by-step explanation:

14/10 or $1\frac{4}{10}$

6 0

3 years ago

Is 2 6/7+5 1/3 irrational or rational?

Julli [10]

Answer: rational

Step-by-step explanation:

5 0

3 years ago

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