área = 6 lados ^ 2
volumen = lado ^ 3
caras rato es 2: 5
la proporción de áreas es 2: 5
para volúmenes,
longitud de 1 lado = √2: √5
cubo que
2√2: 5√5
la relación de volúmenes es 2√2: 5√5
Answer:
Part A: 272 teenagers surveyed like hard rock.
Part B: 200 is the total number of teenagers that Damian surveyed.
Part C: Polly surveyed 850 teenagers to find out their favorite type of music. She found that 132% of the teenagers surveyed like hard rock.
Step-by-step explanation:
Part A: % = 1/100, 32% = 32/100, so 32% of 850 is
32/100 x 850 = 272.
Part B: if Total is T, then 75% of T is = 150, i.e,
75/100 x T = 150, making T subject of relation, then T, Total = 200.
Given that μ=0, and σ=1, P(z>c)=0.1093
thus
P(z<c)=1-0.1093=0.8907
hence the value of c will be:
z-score=(c-μ)/σ
thus
1.23=(c-0)/1
c=1.23
Let the score on her seventh test be "x".
SO,
∴ He must get 104% on his seventh test to get an average score of 90%
