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soldier1979 [14.2K]
2 years ago
13

A variable has a mean of and a standard deviation of . observations of this variable have a mean of and a sample standard deviat

ion of . Determine the observed value of the
Mathematics
1 answer:
RideAnS [48]2 years ago
8 0

Answer:

the mean is 26

Step-by-step explanation:

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If the perimeter of the triangle is 73 mm, find the value of x.
Ipatiy [6.2K]
To find x, we simply need to subtract the sum of the other two sides from 73.
35+11=46
73-46=27

So x = 27mm
7 0
3 years ago
The sides of a rectangle are in the ratio 2:5. The perimeter of the rectangle is 70 cm. What is the width of the rectangle?
EleoNora [17]

Width = 10cm

Length = 25cm

<u>Explanation: </u>

Given, width:length = 2:5

Let width = 2x ,

So, length = 5x

Perimeter of rectangle = 2x(length + width)

According to the question,

70cm = 2X(5x + 2x)\\70cm = 2X(7x)\\35cm = 7x\\x = 5cm

Hence,

Width = 10cm

Length = 25cm

4 0
3 years ago
A food store makes a 12-lb mixture of granola, clusters, and raisins. The cost of granola is $1.00 per pound, clusters cost $3.0
Semenov [28]

Answer:

The food store used  3 lbs of clusters, 6 lbs of granola, and 3 lbs of raisins.

Step-by-step explanation:

Given that:

A food store makes a 12-lb mixture of granola, clusters, and raisins.

The cost of granola = 1.00 per pound

The cost of clusters = 3.00 per pound

The cost of raisins = 2.00 per pound

Let granola be = g; cluster be c and raisins be r

Then, g + c + r = 12

Similarly, the mixture calls for twice as much granola as clusters.

2c + c + r = 12

3c + r = 12

r = 12 - 3c

2c(1) + 3c + 2r = 21

2c + 3c + 2r = 21

5c + 2r = 21

5c + 2(12 -3c) = 21

5c + 24 - 6c = 21

24 - c  = 21

-c = 21 - 24

c = 3

Thus, cluster c = 3 lbs

granola = 2(c) = 2(3) = 6 lbs

raisins = 12 - 3c

= 12 - 3(3)

= 12 - 9

raisins = 3 lbs

4 0
3 years ago
PLEASE HELP ASAPPPP THANK YOU IF YOU HELP
xz_007 [3.2K]

Answer: the area of the whole shape is 0.77. hope this helped.

Step-by-step explanation:

4 0
3 years ago
Consider quadrilateral LMNO. If quadrilateral LMNO is a parallelogram, what must the measure of angle LMN be?
NISA [10]
The answer is 105, did the assignment got it right
7 0
3 years ago
Read 2 more answers
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