Add the equations to eliminate p. That leaves w open to solve.
Answer:
The correct answer is - C. 24.1%
Step-by-step explanation:
Given:
mean μ = 65%
standard deviation δ = 7.1 %
solution:
Prob( X>70) = 1 - Prob(x<70)
= P (x-μ/δ ≥ 70 -65/7.1)
= 1 - Prob( (70-65)/7.1)
= 1 - Prob ( z < 0.7042553)
= 0.24065
the percentage of students scoring 70 or more in the exam
= 24.065*100
= 24.1%
Answer:
105ft^2
Step-by-step explanation:
1/2(21+14)*6
1/2(35)*6
17.5*6
105
A4 80g copy paper 297mm long ang 0.1mm thick so after 7 folds you would have 2.5mm of length 12.8mm of thickness.
Actually i cant fold it more than 6 times because the thickness going arund in each fold would consume to much.
Answer:
Step-by-step explanation:
y - 1 = 2(x + 2)
y - 1 = 2x + 4
y = 2x + 5
