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3 years ago

What is 1000m in 2 minutes?

Mathematics

1 answer:

Norma-Jean [14]3 years ago

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The amount of time it takes Isabella to wait for the bus is continuous and uniformly distributed between 3 minutes and 17 minute

Arturiano [62]

Answer:

P(X>5) = 0.857

Step-by-step explanation:

Let X $\sim$ uniform(3.17)

$f(x) = \dfrac{1}{17-3} ; \ \ \ 3 \le x \le 17$

The required probability that it will take Isabella more than 5 minutes to wait for the bus can be computed as:

$P(X > 5) = \int ^{17}_{5} f(x) \ dx$

$P(X > 5) = \int ^{17}_{5} \dfrac{1}{17-3} \ dx$

$P(X > 5) =\dfrac{1}{14} \Big [x \Big ] ^{17}_{5}$

$P(X > 5) =\dfrac{1}{14} [17-5]$

$P(X > 5) =\dfrac{12}{14}$

P(X>5) = 0.857

6 0

2 years ago

Jordan cam make 8 friendship bracelts in 3 days

max2010maxim [7]

Answer : 15 days

Explanation?

Well considering it takes them 3 days to make 8, we would divide 40 by 8 which is 5 and multiply 3 and 5 to get 15 days in total.

(( Max ))

Mark this as Brainliest if you felt as if I got this right !

6 0

2 years ago

raj and his sister zia are both at secondary school. Raj is three years older than zia. the sum of the squares of their ages is

Cerrena [4.2K]

Let Zia's age be = x years

Raj is three years older than Zia, so Raj's age = x+3 years

As the sum of the squares of their ages is 369, so

$x^{2}+(x+3)^{2}=369$

$x^{2}+x^{2}+6x+9=369$

$2x^{2}+6x+9=369$

$2x^{2}+6x-360=0$

Factoring 2 out we have,

$x^{2}+3x-180=0$

Now solving this equation,

$x^{2}+15x-12x-180=0$

$x(x+15)-12(x+15)$

$(x+15)(x-12)$

x=-15 and x=12

Neglect the negative value as x cannot be negative

So x=12

Hence, Zia's age is 12 years and

Raj's age is 12+3 = 15 years

4 0

2 years ago

Points (−3, 5) and (3, 5) on the coordinate grid below show the positions of two players on a tennis court:

tester [92]

"Player 2's position is Player 1's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different." is the right answer.

6 0

3 years ago

Please help I will give brainliest

hram777 [196]

I’m pretty sure it’s n^15

7 0

3 years ago