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2 years ago

HELP I WILL GIVE BRAINLIEST!

Mathematics

1 answer:

sesenic [268]2 years ago

7 0

Answer:

The answer is d the one with the 18 in it

Step-by-step explanation:

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If dn = ‾‾√24, what value of n makes this equation true?

WARRIOR [948]

Answer:

1/24

Step-by-step explanation:

7 0

3 years ago

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I need to know the distance between points x and y

USPshnik [31]

Answer:

Step-by-step explanation:

Distance between two points P(x1,y1) and Q(x2,y2) is given by: d(P, Q) = √ (x2 − x1)2 + (y2 − y1)2 {Distance formula} 2. Distance of a point P(x, y) from the origin is given by d(0,P) = √ x2 + y2.

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2 years ago

A poll agency reports that 75% of teenagers aged 12-17 own smartphones. A random sample of 234 teenagers is drawn. Round your an

GalinKa [24]

Answer:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

Step-by-step explanation:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

3 0

3 years ago

351,875 rounded to nearest hundred thousand

storchak [24]

The answer would be 400,000.

4 0

3 years ago

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A caircular fountian has a circumference of 21 feet. Which expression can be used to find the diameter of the fountian in feet?

KiRa [710]

Answer: $21 = 2\pi r$

Step-by-step explanation:

To find the circumference of a circle, you can use $2\pi r$ . You can set this equal to 21 (feet). The equation to solve at this point would be $21=2\pi r$ .

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2 years ago