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2 years ago

Which conclusion about the pole vaulters scores is true?

Mathematics

1 answer:

77julia77 [94]2 years ago

6 0

I think b is the best conclusion

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Help me with this question please!! :)

Anna11 [10]

Answer: 9516793/9765625

Step-by-step explanation:

We can subtract the probability none of them have been vaccinated from 1.

If 52% of people are vaccinated, then 48% of people are not vaccinated.

Thus, the probability is $1-(0.48)^{5} =\frac{9516793}{9765625}$

7 0

1 year ago

Which math expression means "the difference of 40 and 12"?

blsea [12.9K]

Answer:C

Step-by-step explanation:This is because c has subtract sign and you are trying to find the difference and difference you need to subtract.And you need to find the difference of 40 and 12 so u write 40- 12 which is choice c.

Hope it helps and it does please give Brainliest .Thanks ;)

6 0

2 years ago

Plz asap maxium points will mark brainliest

Mariana [72]

Answer:

Step-by-step explanation:

We know that AD=BC and that AB=CD. We also know the perimeter of the rectangle ABCD to be 54 units.

From this, we can add up the sides which will be equal to 54 units.

AD+BC+AB+CD=54

2x+2x+3x-3+3x-3=54

10x=60

x=6

Since we are trying to find the length of side BC we substitute this value back into 2x.

BC=2x =2*6=12

Therefore, the length of BC is 12 units.

4 0

2 years ago

Find the area of a triangle with a =33, b =51, and c =42.

PolarNik [594]

Answer:

d. 690.1 units²

Step-by-step explanation:

1. You can use the Heron's formula to calculate the area of the triangle, which is:

$K=\sqrt{s(s-a)(s-b)(s-c)}$

Where:

$s=\frac{a+b+c}{2}$

2. Calculate $s$ :

$s=\frac{33+51+42}{2}\\s=63$

3. Substitute values into the formula shown above and calculate the area, as following:

$K=\sqrt{63(63-33)(63-51)(63-42)}\\K=690.1units^{2}$

4. Therefore, the area is 690.1 units².

4 0

2 years ago

5y + 3 = 4y - 9 what is y?

Elena L [17]

$y = - 12$

Step-by-step explanation:

$5y - 4y = - 9 - 3 \\ y = - 12$

6 0

3 years ago