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3 years ago

What is the radius for the circle given by the equation x^2+ (y- 1)^2=12

Mathematics

1 answer:

anzhelika [568]3 years ago

3 0

Answer:

2√3

Step-by-step explanation:

circle pass (h,k): (x-h)² + (y-k)² = r²

radius = √12 = 2√3

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Simplify:<br> 3(8) ° . (3) -2

jek_recluse [69]

3 x 8 = 24

3 x -2 = -6

reply if you this was wrong or you needed a different answer pls >:(

3 0

4 years ago

Does anyone know the answer?? i’ll mark brainlists

vovangra [49]

I’d say D as the answer

7 0

3 years ago

Let x be the amount of time (in minutes) that a particular San Francisco commuter must wait for a BART train. Suppose that the d

larisa [96]

Answer:

a) $P(X$

$P(X>14) = 1-P(X$

b) $P(7< X$

c) We want to find a value c who satisfy this condition:

$P(x$

And using the cumulative distribution function we have this:

$P(x$

And solving for c we got:

$c = 20*0.9 = 18$

Step-by-step explanation:

For this case we define the random variable X as he amount of time (in minutes) that a particular San Francisco commuter must wait for a BART train, and we know that the distribution for X is given by:

$X \sim Unif (a=0, b =20)$

Part a

We want this probability:

$P(X$

And for this case we can use the cumulative distribution function given by:

$F(x) = \frac{x-a}{b-a} = \frac{x-0}{20-0}= \frac{x}{20}$

And using the cumulative distribution function we got:

$P(X$

For the probability $P(X>14)$ if we use the cumulative distribution function and the complement rule we got:

$P(X>14) = 1-P(X$

Part b

We want this probability:

$P(7< X$

And using the cdf we got:

$P(7< X$

Part c

We want to find a value c who satisfy this condition:

$P(x$

And using the cumulative distribution function we have this:

$P(x$

And solving for c we got:

$c = 20*0.9 = 18$

3 0

3 years ago

Find the mode of the following data set.

Bas_tet [7]

Answer:

31.

Step-by-step explanation:

The mode is the value which occurs the most.

Stem = 3 and leaf = 1, 1,6 so that is 2 31's.

4 0

4 years ago

What is the y-intercept and x-intercept for the equation -3x - 4 = -5y - 8

BARSIC [14]

Step-by-step explanation:

=> -3x - 4 = -5y - 8

=> 8 - 4 = 3x - 5y

=> 4 = 3x + (-5)y

=> 1 = (3x/4) + (-5y/4)

=> 1 = x/(4/3) + y/(-4/5)

Compare this with x/a + y/b = 1 where a and b are x & y intercepts.

Here,

x intercept = 4/3

y intercept = -4/5

6 0

3 years ago