Answer:
Diana's score is better.
Step-by-step explanation:
In Diana case :
Score = 92
Mean score , μ = 71
Standard deviation σ = 15
So,
P( x ≥ 92 ) = 1 - P( x ≤ 92 )
= 1 - P(z ≤ )
= 1 - P( z ≤ )
= 1 - P( z ≤ 1.4 )
= 1 - 0.9192
= 0.0808 = 8.08 %
⇒P( x ≥ 92 ) = 8.08%
∴ we get
Diana score is > 91.92% other students in the class.
In Micheal case :
Score = 688
Mean score , μ = 493
Standard deviation σ = 150
So,
P( x ≥ 688 ) = 1 - P( x ≤ 688 )
= 1 - P(z ≤ )
= 1 - P( z ≤ )
= 1 - P( z ≤ 1.3 )
= 1 - 0.9032
= 0.0968 = 9.68 %
⇒P( x ≥ 688 ) = 9.68%
∴ we get
Micheal score is > 90.32% other students in the class.
From both scores , we can conclude that
Diana's score is better.
Answer:
answer is C f(n) = 4(3)n; f(5) = 972
Step-by-step explanation:
i took the test, also
<u>Answer with step-by-step explanation:</u>
We are given two figure for which we have to find their areas.
To make it easier, we will break down these figure into recognizable shapes and then find the total area.
<u>Figure 1:</u>
Area of rectangle = 110 x 140 = 15400 cm^2
Area of triangle = 0.5 x (180 - 110) x 90 = 3150 cm^2
Area of figure 1 = 15400 + 3150 = 18550 cm^2
<u>Figure 2:</u>
Area of square = 8 x 8 = 64 cm^2
To find the area of triangle, we need to find the length of the base using the Pythagoras Theorem:
Area of triangle = 0.5 x 6 x 8 = 24 cm^2
Area of figure 2 = 64 + 24 = 88 cm^2
Answer:
who are you
I really don't get the question
sorry
Answer:550
Step-by-step explanation: first you need to find the unit rate ( or how many miles per gallon) by dividing 440 by 20 which would get 22, then you would take that and multiply it by 25 to get 550. Hope this helps!