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lora16 [44]
3 years ago
7

What is the best estimate of the mean price of all the sunglasses on the rack?

Mathematics
2 answers:
Gwar [14]3 years ago
7 0
The mean of the sample is
  (12 +12 +14 +15 +18 +20 +20 +25)/8 = 136/8 = 17

The best estimate of the mean of the population is
  $17
Morgarella [4.7K]3 years ago
5 0
$17 is the answer to this problem
.
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Solve this quadratic form 3x-2x²=7 this is grade 9​
Pani-rosa [81]

Answer:

x

=

3

±

i

√

47

4

x=3±i474

Step-by-step explanation:

7 0
3 years ago
If you have an old fish tank in the form of a circular cylinder and it is 2 feet in diameter and 6 feet tall, how many cubic fee
yuradex [85]

Answer:

The old fish tank hold <u>18.84 cubic feet</u> of water.

Step-by-step explanation:

Given:

An old fish tank in the form of a circular cylinder and it is 2 feet in diameter and 6 feet tall.

Now, to find the cubic feet of water the fish tank hold.

Dimensions of old fish tank are:

<em>Diameter is 2 feet so. we find the radius first.</em>

Radius (r) = \frac{Diameter}{2}=\frac{2}{2}=1\ feet.

Height (h) = 6\ feet.

Now, to get the cubic feet off water the tank hold we put formula:

<u><em>(Taking the value of π as 3.14.)</em></u>

Volume=\pi r^2h\\\\Volume=3.14\times 1^2\times 6\\\\Volume=3.14\times 1\times 6\\\\Volume=18.84\ cubic feet.

Therefore, the old fish tank hold 18.84 cubic feet of water.

7 0
2 years ago
The deli server put 0.25 pound (lb) of meat on each sandwich. She used the equation 0.25s = 50 to determine the number of sandwi
LenKa [72]
200 is the value of s
6 0
3 years ago
A group of 570 students were surveyed about the courses they were taking at their college with the following results:
garri49 [273]

Answer:

The number of students who took English and History, but not Math is 143.

Step-by-step explanation:

Denote the subject choices as follows:

<em>M</em> = a students was taking Math

<em>E</em> = a students was taking English

<em>H</em> = a students was taking History

The data provided is as follows:

N (M) = 257

N (E) = 282

N (H) = 323

n (M ∩ E) = 154

n (M ∩ H) = 171

n (E ∩ H) = 143

n (M ∩ E ∩ H) = 80

Consider the Venn diagram below.

From the provided data and the Venn diagram the value of the set E and H minus M is 143.

Thus, the number of students who took English and History, but not Math is 143.

7 0
2 years ago
Sara and Collin's ages add up to 85. Sara is ten years older than foustimes
malfutka [58]

Answer:

Collin is 37.5 and Sara is 47.5

Step-by-step explanation:

s+c=85

c+10=s

(c+10)+c=85

2c+10=85

2c=75

c=37.5

s+(37.5)=85

s=47.5

8 0
3 years ago
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