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zloy xaker [14]
3 years ago
10

Companies that design furniture for elementary school classrooms produce a variety of sizes for kids of different ages. Suppose

the heights of kindergarten children can be described by a Normal model with a mean of 38.2 inches and a standard deviation of 1.8 inches.
Require:
a. What fraction of kindergarten kids should the company expect to be less than 3 feet tall?
b. In what height interval should the company expect to find the middle 80% of kindergarteners?
c. At least how tall are the biggest 10% of kindergarteners?
Mathematics
1 answer:
pav-90 [236]3 years ago
8 0

Answer:

SDFGHJKLÑ

Step-by-step explanation:

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Ryan rode his bike of a mile. James rode his bike of a mile. Who rode farther? Exactly how much farther? Use the rectangles belo
34kurt

Answer:

Stewhapt

rectangles-by-step explanation:

5 0
3 years ago
Secx tanx=√3(0<×<360)​
Vladimir79 [104]

Answer:

x = 60°

Step-by-step explanation:

Bcz tan60° = √3

Hope you got it.

5 0
2 years ago
5(x+3)(x+2)-3(x2+2x+1)
mr Goodwill [35]

[ Answer ]

\boxed{5x^{2} \ + \ 13x \ + \ 27}

[ Explanation ]

  • Simplify: 5(x + 3)(x + 2) - 3(x2 + 2x + 1)

--------------------------------------

  • Add Similar Elements: 2x + 2x = 4x

5(x + 3)(x + 2) - 3(4x + 1)

  • Expand: 5(x + 3)(x + 2) - 3(4x + 1): 5x^{2} + 25x + 30

5x^{2} + 25x + 30 - 3(4x + 1)

  • Expand: - 3(4x + 1): -12x - 3

5x^{2} + 25x + 30 - 12x - 3

  • Simplify: 5x^{2} + 25x + 30 - 12x - 3: 5x^{2} + 13x + 27

= 5x^{2} + 13x + 27

\boxed{[] \ Eclipsed \ []}

4 0
2 years ago
Garret has a bag that contains cubic 2 7/16 feet of mulch. If he uses 8/9 of the bag in his garden how much mulch is left in the
Dimas [21]

Answer:

0.27 cubic feet of mulch is remaining

Step-by-step explanation:

Quantity in the bag = 2 7/16 cubic feet of mulch

Quantity used = 8/9 of the bag in his garden

Mulch used = 8/9 of 2 7/16

= 8/9 × 39/16

= 1/9 × 39/2

= 39/18

= 2 3/8 used

Total mulch left = Total mulch in the bag - mulch used

= 2 7/16 - 2 3/8

= 39/16 - 39/18

= 702-624/288

= 78/288

= 0.27 cubic feet of mulch is remaining

3 0
2 years ago
There were 47 bales of hay in the barn. Mike stacked more bales in the barn today. There are now 78 of hay in the barn. How many
ICE Princess25 [194]

Answer:

31

Step-by-step explanation:

78 - 47 is 31 bales of hay

8 0
2 years ago
Read 2 more answers
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