Which point is located on the x-axis

Mathematics

2 answers:

goblinko [34]3 years ago

4 0

Download connects works everytime

stiks02 [169]3 years ago

4 0

Answer:

Point C

Step-by-step explanation:

X axis is bottom row and Point C is directly on it.

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write a fraction equal to 3/5 that has a denominator of 10 then write a fraction equal to 1/2 that has a denominator of 10

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A fraction equivalent to 3/5 with a denominator of 10
First, find another number that you can multiply your denominator by to get 10
5 x 2 = 10
Now, multiply both the numerator and the denominator by that number.
3 x 2 = 6
5 x 2 = 10
And put the new numbers into the fraction.
6/10
An equivalent fraction to 3/5 with a denominator of 10 is
6/10
A fraction equal to 1/2 with a denominator of 10
First, find a number that you can multiply the denominator by to get 10
2 x 5 = 10
Then, multiply the numerator and denominator by that number.
1 x 5 = 5
2 x 5 = 10
Now, put the new numbers into the fraction.
5/10
A fraction equal to 1/2 with a denominator of 10 is
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So, the two fractions are
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and
5/10, which is equivalent to 1/2

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scores on a college entrance examination are normally distributed with a mean of 500 and a standard deviation of 100% of people

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We have

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$\sigma = 100$

425 corresponds to a z of

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575 corresponds to

$z_2 = \dfrac{575 - 500}{100} = \dfrac 3 4$

So we want the area of the standard Gaussian between -3/4 and 3/4.

We look up z in the standard normal table, the one that starts with 0 at z=0 and increases. That's the integral from 0 to z of the standard Gaussian.

For z=0.75 we get p=0.2734. So the probability, which is the integral from -3/4 to 3/4, is double that, 0.5468.

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The equation to compute the time of a journey given the speed and distance is $t=\frac{d}{s}$ where $t$ is the time, $s$ is the speed and $d$ is the distance.