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ss7ja [257]
2 years ago
11

Please asap maths homework

Mathematics
1 answer:
Nutka1998 [239]2 years ago
6 0

Answer:

77 red marbles

Step-by-step explanation:

the bag has R and B marbles

P(B)=1/12 = number of blue /total number of marbles

so 1/12=?/84

in the bag must be 84/12=7 marbles that are blue

84-7=77 red marbles

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What is the equation of a line perpendicular to 3X+6Y= -3 and passes through the points (1,-5)
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Answer:

Step-by-step explanation:

6y = -3x - 3

y = -1/2x - 1/2

perp. 2

y + 5 = 2(x - 1)

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3 years ago
What percent of 64 is 48?
melisa1 [442]
75% 
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8 0
3 years ago
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HELP I NEED HELP ASAP
Nady [450]

Answer:

A

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2 years ago
Refer to the technology output given to the right that results from measured hemoglobin levels (g/dL) in 100 randomly selected a
charle [14.2K]

Answer:

Step-by-step explanation:

a)

Confidence interval in less than symbol expressed as

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13.03 < \mu 13.42&#10;

b)

The given t interval is (13.032 , 13.418 )&#10;

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Solve these two equation by adding together.

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Solve this value of \bar{x} in equation \bar{x} - E = 13.032 and solve for E

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Best point estimate of \mu = \bar{x} = 13.225&#10;

Best point estimate of margin of error = 0.193

c)

Since sample size = 100 which is sufficiently large (Greater than 30) , it is no need to confirm that

sample data appear to be form a population with normal distribution.

8 0
2 years ago
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vova2212 [387]

Answer:

option 2,5 are correct

Step-by-step explanation:

mark me as brainliest ❤️

7 0
3 years ago
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