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MrMuchimi
1 year ago
5

please help! a point is chosen at random in the square, what percent of the time will the point be in the circle,round to the ne

arest tenth of a percent?

Mathematics
2 answers:
vodomira [7]1 year ago
8 0

Answer:

78.5%

Step-by-step explanation:

You take the area of the circle which is pie*r^2

and divide it by the area of the square

Lelechka [254]1 year ago
4 0
The answer to your question will be 20%
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Without solving determine the number of real solutions for each quadratic equation
seropon [69]

Answer:

b^2-4b+3=0

b²-3x-b+3=0

b(b-3)-1(b-3)=0

(b-3)(b-1)=0

either

b=3 or b=1

.

2n^2 + 7 = -4n + 5

2n²+4n+7-5=0

2n²+4n+2=0

2(n²+2n+1)=0

(n+1)²=0/2

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x - 3x^2 = 5+ 2x - x^2

0=5+ 2x - x^2-x +3x^2

0=5+x+2x²

2x²+x+5=0

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x={-b±√(b²-4ac)}/2a ={-1±√(1²-4×2×5)}/2×1

={-1±√-39}/2

3 0
2 years ago
The average waist size for teenage males is 29 inches with astandard deviation of 2 inches. If waist sizes are normallydistribut
choli [55]

Answer:

The z-score of a teenage with waist size 33 inch is 2

Step-by-step explanation:

Mathematically, the z-score can be calculated using the formula;

z-score = (x- mean)/SD

where mean = 29 inches , SD = 2 inches and x = 33 inch

Plugging these values, we have

z-score = (33-29)/2 = 4/2 = 2

5 0
3 years ago
For the expression, use a property to write an equivalent expression, tell which property you used. Please help, and thank you :
raketka [301]
What about if you use the distributive property? You could do 1(x+13) because the 1 would distribute to the x and the 13 making it x+13. Hope that is helpful.
4 0
3 years ago
It costs $5.15 to buy 1/4 oz of walnuts. how much would it cost to purchase 4.5 oz of walnuts​
nalin [4]

Answer:

Step-by-step explanation: 1/4 is 0.25 so 0.25 X 18 = 4.5 so then 18X 5.15 = 81

3 0
3 years ago
Which expression is equivalent to log 3(x+4)
larisa86 [58]

Answer:

log 3(x+4) = log 3 + log (x+4)

Step-by-step explanation:

Because 3(x+4) is a product, log 3(x+4) = log 3 + log (x+4).

6 0
3 years ago
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