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babymother [125]
3 years ago
9

A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only

wants a 3% margin of error at a 97.5% confidence level, what size of sample is needed?
Mathematics
1 answer:
Neporo4naja [7]3 years ago
5 0
Idk maybe it's is 10x32/20=60
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Can you guys help me?
ioda

Answer:

61.93°

Step-by-step explanation:

sin x=15/17

=0.8824

sin-1 0.8824

=61.93°

5 0
2 years ago
Order the ratios from least to greatest:
ss7ja [257]

Answer:

13:6 ; 9:4 ; 5:2 ; 20:7 ; 10:3

Step-by-step explanation:

8 0
2 years ago
Plz help me well mark brainliest if you are correct!..
koban [17]

Answer:

8

Step-by-step explanation:

all numbers must be positive when you have the lines on the side

8 0
3 years ago
Read 2 more answers
Pls help for this question! no wrong answers pls
ankoles [38]

Answer:

41.29 cm²

Step-by-step explanation:

From the question,

Area of the shaded portion = Area of the circle - area of the square.

A' = πr²-L²...… Equation 1

Where A' = Area of the shade portion, r = radius of the circle, L = length of the square, π = pie

Given: r = 4 cm, L = 3 cm

Constant: π = 22/7.

Substitute these values into equation 1

A' = [(22/7)×4²]-3²

A' = 50.29-9

A' = 41.29 cm²

Hence the area of the shaded portion is 41.29 cm²

8 0
3 years ago
Find the Area of the figure below, composed of a rectangle and a semicircle. There radius of the circle is shown. Round to the n
DochEvi [55]

Answer: 149.3

Step-by-step explanation:

5 0
3 years ago
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