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3 years ago

13

Based on Rudy’s baseball statistics,the probability that he will pitch a curveball is 1/4.if rudy throws 20 pitches,how many pit

xhes most likely will be curveballs?

1 answer:

Aleks [24]3 years ago

6 0

Answer:

5

Step-by-step explanation:

Expected value = probability × number of trials

X = 1/4 × 20

X = 5

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If two points known on the line AB in the coordinate plane is (7,15) and (18,42), calculate the following..

Ksju [112]

<u>Answer:</u>

Slope = 27/11
AB = 29.15 u

<u>Step-by-step explanation:</u>

<u>Given :- </u>

Two points are given to us .
The points are A(7,15) and B(18,42)

<u>To Find</u> :-

The slope of the line .
The length of line AB .

We can find the slope of the line passing through the points $( x_1,y_1)$ and $( x_2,y_2)$ as ,

$\implies m = \dfrac{ y_2-y_1}{x_2-x_{1}}$

Plug in the respective values ,

$\implies m = \dfrac{ 42-15}{18-7} \\\\\implies \boxed{ m = \dfrac{ 27}{11 }}$

<u>Hence the slope of the line is 27/11 .</u>

$\rule{200}2$

<u>Finding the length of AB :-</u>

We can find the distance between them by using the Distance Formula .

$\implies Distance =\sqrt{ (x_2-x_1)^2+(y_2-y_1)^2} \\\\\implies Distance =\sqrt{ (18-7)^2+(42-15)^2 } \\\\\implies Distance =\sqrt{ 11^2 + 27^2 } \\\\\implies Distance =\sqrt{ 121 + 729 } \\\\\implies Distance = \sqrt{ 850} \\\\\implies \boxed{ Distance = 29.15 \ units }$

<u>Hence the length of AB is 29.15 units .</u>

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2 years ago

Hey guys so I need help with my math homework what is 4/5 to 1/6 one third away from

Tom [10]

Answer:

0.16

Step-by-step explanation:

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3 years ago

A store advertises 15% off an item that regularly sells $300. How is a 15% discount similar to a 15% decrease? Explain.

Kobotan [32]

Both a discount and decrease will make the cost the same which is $225 for the object. I think that's what your asking. I'm sorry if it is not that helpful.

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3 years ago

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What is the LCM of 5,9,6,10

astraxan [27]

Answer:

1

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2 years ago

11) the difference between the product of 4 and a<br><br> number and the square of the number

marta [7]

Answer:

$= 4x-x^2\\\\$

Step-by-step explanation:

Let the number be x;

The product of 4 and the number will be;

$= 4 * x\\\\= 4x$

The the square of the number is given as;

$= x^2\\$

Taking the difference of both expressions above;

$= 4x-x^2\\\\$

Factor out the common term:

$= x(4-x)\\\\$

Hence the difference between the product of 4 and a number and the square of the number is $= 4x-x^2\\\\$

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3 years ago