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sesenic [268]
2 years ago
12

Elena randomly chooses a number from 1 to 10. What is the probability she chooses a number greater than 5?

Mathematics
1 answer:
zepelin [54]2 years ago
5 0

ANSWER

P(E)=\frac{1}{2}

EXPLANATION

From the given information, Elena chooses a number from 1 to 10.

The sample space is

S={1,2,3,4,5,6,7,8,9,10}

n(S)=10

The numbers greater than 5 are:

E={6,7,8,9,10}

n(E)=5

The probability that, she chooses a number greater than 5 is:

P(E) =  \frac{n(E)}{n(S)}

Substitute the values,

P(E) =  \frac{5}{10}

P(E) =  \frac{1}{2}

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True or false a translation is a certain type of Transformation​
natima [27]

yes it is a transformation because we're either making the point on a graph go up or down

4 0
3 years ago
Find the center and radius of the circle whose equation is x2 + y2 - 6x-2y+4= 0
marin [14]

Answer:

The center of the circle = (3, 1)

The radius of a circle is given as r = √6

Step-by-step explanation:

The equation of a circle is given as:

( x - a)² + (y - b)² = r²

where ( a , b) = center of the circle

r = radius of the the circle

In the question above, we are given the equation of a circle as

x² + y² - 6x - 2y + 4= 0

In order to find the center and radius of this circle we would use completing the square method to solve it

Step 1

Collect the like terms

x² - 6x + y² - 2y + 4= 0

Step 2

Complete the square for both x and y

x² - 6x + (-6/2)² + y² - 2y + (-2/2)² = - 4 +(- 6/2)² + (-2/2)²

x² - 6x + (-3)² + y² - 2y + (-1)² = -4 + (3)² + (1)²

x² - 6x + 9 + y² - 2y + 1 = -4 + 9 + 1

(x² - 6x + 9) + (y² - 2y + 1 )= -4 + 9 + 1

(x² - 3x - 3x +9) + ( y² - y - y +1) = 6

x(x - 3) -3( x - 3) + y( y - 1) - 1( y - 1) = 6

(x - 3) (x -3) +(y - 1) ( y - 1) = 6

(x - 3)²(y - 1)² = 6

Since,

The equation of a circle is given as:

( x - a)² + (y - b)² = r²

where ( a , b) = center of the circle

r = radius of the the circle

The equation of the the circle for the above question is calculated as:

(x - 3)²(y - 1)² = 6

where ( a , b) = center of the circle = (3, 1)

r = radius of the the circle

r² = 6

r = √6

8 0
2 years ago
PLEASEE HELP!!!!NO LINKS
tangare [24]

Answer:

I think it's choice B and D

Step-by-step explanation:

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8 0
3 years ago
What is the perimeter of a room that measures 14 1/3 feet long and 12 1/2 feet wide
bogdanovich [222]
28 2/3 + 25 = 32 1/3
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3 years ago
Next two terms 5, 3, 1.8, 1.08
Alenkinab [10]
Guessing geometric
so

hmm
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divide both sides by 5
what=3/5
what=0.6
each term is multiplied by 0.6

so
1.08 times 0.6=0.648
0.648*0.6=0.3888


the next 2 terms are 0.648 and 0.3888
5 0
3 years ago
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