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Talja [164]
1 year ago
13

1. the best / most precise estimate of the mean value of y is located at the mean of the x values. true false -select- 2. if you

were thinking about opening up several new pizza places near colleges with 20,000 students, would you feel 95% confident that mean sales for those stores would be $175,000? yes no -select-
Mathematics
1 answer:
aliina [53]1 year ago
3 0

The first statement is false and answer to second statement is no.

The mentioned information does not state that x and y are linearly related or not. If they are not related in linear way, the mean value of y would not be located at the mean of the x values.

Confidence intervals indicate the mean or population of the sample. For the confidence interval of sales of pizza stores, the similar data would be required for comparison using statistics tool. Hence, the relevant data should be sales of nearby pizza stores till now. Thus, the mentioned statement is irrelevant.

Learn more about confidence interval -

brainly.com/question/17097944

#SPJ4

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4. Suppose you reflect a point using the y-axis as line of reflection. How would you describe its image?​
masya89 [10]

Answer:it would be exactly to the other side of y

Step-by-step explanation:

like say -2,1 would reflect as 2,1

4 0
2 years ago
HEYYYY GUYYYSSS HELPP MEEE, ILL MARK YOU BRAINIEST. PLEEEAAASEEEE thankkyouu
VikaD [51]

Answer:

Step-by-step explanation:

A dependent variable in an expression is one whose value can be determined only when the value of other variable (i.e independent) is known.

A. The cost at the fitness center depends on the number of months (x).

The cost is the dependent variable, and number of months (x) is the independent variable.

f(x) = 100 + 40x

Example, the cost paid for 12 months can be determined as;

f(12) = 100 + 40(12)

       = 100 + 480

       = 580

Thus, $580 would be paid for 12 months at the fitness center.

B. The lettuce is sold at $1.69 per pound. The cost depends on the number of pounds of lettuce bought.

The cost is the dependent variable, while the number of pounds of lettuce (x) bought is the independent variable.

So that;

f(x) = 1.69x

The cost of 10 pounds of lettuce can be determined as;

f(x) = 1.69(10)

     = 16.9

Thus, the cost of 10 lb of lettuce is $16.90.

6 0
2 years ago
Find the least common multiple of 5,9 and 30
Ratling [72]
5 least common multiple is 5 nines is 3 and thirty's is 3
6 0
3 years ago
-7h+3(4-6h)=127 is h= 25?
GREYUIT [131]

Answer:

No, h = (-23)/5

Step-by-step explanation:

Solve for h:

3 (4 - 6 h) - 7 h = 127

3 (4 - 6 h) = 12 - 18 h:

12 - 18 h - 7 h = 127

-18 h - 7 h = -25 h:

-25 h + 12 = 127

Subtract 12 from both sides:

(12 - 12) - 25 h = 127 - 12

12 - 12 = 0:

-25 h = 127 - 12

127 - 12 = 115:

-25 h = 115

Divide both sides of -25 h = 115 by -25:

(-25 h)/(-25) = 115/(-25)

(-25)/(-25) = 1:

h = 115/(-25)

The gcd of 115 and -25 is 5, so 115/(-25) = (5×23)/(5 (-5)) = 5/5×23/(-5) = 23/(-5):

h = 23/(-5)

Multiply numerator and denominator of 23/(-5) by -1:

Answer:  h = (-23)/5

4 0
3 years ago
Which three-dimensional figure is formed by the rotation given?.
Mars2501 [29]

Answer: Which three-dimensional figure is formed by the rotation given?.

Step-by-step explanation:

solid of rotation. The dashed line is the axis of rotation for the solid of rotation formed by rotating the green triangle. A cone

6 0
2 years ago
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