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SSSSS [86.1K]
3 years ago
11

A combination lock requires three numbers from 1 to 25. how many combinations are possible? did you use the sum rule or the prod

uct rule? (note
Mathematics
1 answer:
Nostrana [21]3 years ago
4 0
25×3=75 combinations are possible
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.1√a^6 if a<0
Romashka-Z-Leto [24]

Answer:

The answer for first one is,

a³

Answer for Second one is,

n.

Answer for 3rd one is.

-3y

Answer for number four.

x⁹

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8 0
3 years ago
Read 2 more answers
The diameter of a circular garden is 18 feet. What is the approximate area of the garden?
nlexa [21]
Area of a circle = πr²

Radius = 18/2 = 9

A = (3.14)(9)²
A = 254.34

Hope this helps :)
4 0
3 years ago
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Which equation is represented by the table?
lys-0071 [83]
What table? i think you need to upload a picture of it or something
8 0
3 years ago
Sarah is doing research on the average age of first-year resident physicians. She wants her estimate to be accurate to within 1
WINSTONCH [101]

Answer: The number of first-year residents she must survey to be 95% confident= 263

Step-by-step explanation:

When population standard deviation (\sigma)  is known and margin of error(E) is given, then the minimum sample size (n) is given by :-

n=(\dfrac{z^*\sigma}{E})^2, z* = Two-tailed critical value for the given confidence interval.

For 95% confidence level , z* = 1.96

As, \sigma = 8.265, E = 1

So, n= (\dfrac{1.96\times8.265}{1})^2 =(16.1994)^2\\\\= 262.42056036\approx263\ \ \ [\text{Rounded to the next integer}]

Hence, the number of first-year residents she must survey to be 95% confident= 263

7 0
3 years ago
Find the rule. Solve for n. Х 12 15 20 Y 7 10 15 17 n Rule:​
Novosadov [1.4K]

Answer:

n =22

Step-by-step explanation:

12-5=7

15-5=10

20-5=15

n-5=17

collect like terms

n=17+5

n=22

4 0
2 years ago
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