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Viefleur [7K]
3 years ago
6

Assuming part a is correct, how do you do b and c?

Mathematics
1 answer:
zubka84 [21]3 years ago
8 0

Step-by-step explanation:

B. Yes, we are 99% confident that the population mean is within the interval.

C. Yes, 225 is below the interval minimum, so it is reasonable to conclude the average cholesterol level is greater than 225 mg/dl.

D. No.  Increasing the sample size would decrease the margin of error, so the ends of the interval would move closer to the sample mean of 251.9.  So the interval minimum would still be higher than 225.

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irina1246 [14]
2/3(6x+3)
2/3 x 3(2x+1)
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4x+2
Therefore your answer is 4x+2
5 0
3 years ago
2. John and Jen went to the farmers market to buy fruit. John bought 3 boxes of oranges and 9 boxes of cherries for $78. Jen bou
jenyasd209 [6]

Answer:

Let the cost of orange be X and cost of cherry be y

3x + 9y = 78

8x + 4y = 58

Solving equation using elimination method

multiplying eq 1 with 8 and eq 2 with 3

8(3x + 9y ) = 78(8)

3( 8x + 4y) = 3(58)

24x + 72 y = 624

24x + 12y = 174

subtracting,

60 y = 450

y = 7.5

3x + 9(7.5) = 78

3x + 67.5 = 78

3x = 78 - 67.5

3x = 10.5

x = 3.5

<h2>Box of orange = $3.5 </h2><h2>Box of cherry = $7.5</h2>
7 0
2 years ago
Need help with slope practice assignment eight greade
Viktor [21]

Answer: Option D is correct. The function equation y= -16x^2 + 9x + 4

is non-linear.

Step-by-step explanation:

It is not linear because it is a quadratic function.

You can see this on the graph in the photo below:

,  Hope this helps :)

Have a great day!!

6 0
3 years ago
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What is 11x - 3 = 5x + 11
astra-53 [7]
11x - 3 = 5x + 11

11x - 5x = 11+3
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4 years ago
Line cd has endpoints c(1,4) and d(5,0) line ef has endpoints (4,5) and (2,-1).​
amm1812

Answer:

yo what up

Step-by-step explanation:

8 0
3 years ago
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