Answer:
21 Students played string instruments
Step-by-step explanation:
58 - 16 = 42, 42 ÷ 2 = 21 so 21 + 21 + 16 = 58. because there are sixteen more wind instruments that means you need to have the wind and string equal and then add 16 more winds which is what i did, if you have 21 string instruments and (21+16) 37 wind instruments then you have 58
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Answer:
370
Step-by-step explanation:
nearest ten would be 370
Answer:
C) 26π mi
Step-by-step explanation:
1. Find the diameter:
<em>24² + 10² = d²</em>, because of the pythagorean theorem.
Add: 676 = d²
Square root: <em>26 = d</em>, no negatives by domain
2. Find the circumference:
<em>C = dπ</em>
Plug in: C = 26π miles
Answer:
4
Step-by-step explanation:
Answer:
P [ Z < 66 ] = 35,15 %
Step-by-step explanation:
Normal Distribution
Population mean μ₀ = 75,4
Standard deviation σ = 5,2
Then:
P [ Z < 66 ] = ( 66 - 75,4 ) / 5,2
P [ Z < 66 ] = - 9,4 / 5,2
P [ Z < 66 ] = - 1,81
In z-table we look for the reciprocate area for that z score and find
P [ Z < 66 ] = 0,3515
P [ Z < 66 ] = 35,15 %
