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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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In a toy​ store, the ratio of the number of dolls to the number of teddy bears is . If the store has 240​ dolls, how many teddy
forsale [732]

Answer:

<u>So, the way a ratio works is </u><u>"for every 1 of this, we have 4 of this"</u><u> for example. (the ratio I just described would be 1:4.) </u>

<u />

I believe I've seen this question before. If the ratio of dolls to teddy bears is 9:3 then for every 9 dolls you have 3 teddy bears.

So, since we have 240 dolls and a 9:3 ratio to teddy bears, all we have to do is take how many dolls we have (240) and divide it by 3 to see how many teddy bears we have.

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240 ÷ 3  = 80

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7 0
3 years ago
What is nine plus 12
lbvjy [14]

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Step-by-step explanation:

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3/4 + 5/6? What is the equation.
Virty [35]
The answer to your question is 1 7/12
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Find the value of the following expression (2^8 • 3^-5 • 6^0) write your answer in simplified form show all your steps Help Fast
vitfil [10]
{( {2}^{8} \times {3}^{ - 5} \times {6}^{0} })^{ - 2} \\ = \frac{1}{ {( {2}^{8} \times {3}^{ - 5} \times {6}^{0} })^{2} } \\ = \frac{1}{ {(256 \times \frac{1}{ {3}^{5} } \times 1 })^{2} } \\ = \frac{1}{ {(256 \times \frac{1}{243} \times 1 })^{2} } \\ = \frac{1}{ ({ \frac{256}{243} })^{2} } \\ = \frac{1}{ \frac{ {256}^{2} }{ {243}^{2} } } \\ = \frac{1}{ \frac{65536}{59049} } \\ = \frac{59049}{65536}
The answer is 59049/65539
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3 years ago
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