Given:
μ = 70, the mean
σ = 10, the standard deviation
The random variable is x = 65.
Calculate the z-score.
z = (x - μ)/σ = (65 -70)/10 = - 0.5
From standard ables, obtain
P(x<5) = 0.3085 ≈ 30%
The score of 65 is in the 30th percentile.
Answer: 30th
Answer:
<h3>40°</h3><h3 />
Step-by-step explanation:
since ΔABC is ≅ to ΔEDC
where ∠A = 40°
∠E = 40° because ∠A ≅ ∠E
This queston is not of Algebra. It is of chemistry.
You have to work with the chemical formula of the compound, the atomic and molar masses and use proportions.
1) PH3:
element atomic mass number of atoms total mass
P 31 g/mol 1 31 g/mol
H 1.0 g/mol 3 3.0 g/mol
------------------
molar mass 34 g/mol
2) proportions
372 g H / x = 3.0 g H / 34 g PH3
=> x = 372g H * 34 g PH3 / 3.0 g H = 4216 g PH3
Answer: 4216 g
Answer:
$18
Step-by-step explanation:
1. Subtract 5-2 to get three
2. Divide 27 by three to get 9. Now you know how many $ is in one sectio
3. Multiply 9 by 2
4. Riley got $18
Answer:
sure what is the topic
Step-by-step explanation:
just tell me the topic and I might be able to