Answer:
20 children and 20 adults
Step-by-step explanation:
20 + 20 = 40
Y = -1/2x - 3....slope here is -1/2. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So we need a slope of 2 for our perpendicular line.
y = mx + b
slope(m) = 2
(6,-4)...x = 6 and y = -4
now we sub and find b
-4 = 2(6) + b
-4 = 12 + b
-4 - 12 = b
-16 = b
so ur perpendicular equation is : y = 2x - 16
Answer:
The probability that the operation is successful and infection-free is 0.9831
Step-by-step explanation:
Let the infections be denoted by I and the fails be denoted by F then
P(I)= 2% = 0.02
P (F)= 11% = 0.11
P(I∩F)= 0.5 % = 0.005
First we find the probability of infection or fail by using the general rule of addition
P (infection or repair) = P(I) +P (F) - P(I∩F)
= 0.02 + 0.11 -0.005
= 0.125
Now using the complement method to find the no infection or repair successful
P(no infection or repair successful)= 1- P (infection or repair)
= 1- 0.125= 0.875
P( Successful) = 1- P (F)= 1- 0.11= 0.89
The probability that the operation is successful and infection-free is given by the conditional probability
P( Successful given that no infection) = P(no infection or repair successful)/P(successful)
P( Successful given that no infection) = 0.875/0.89= 0.9831
Answer:
A) 12.5 B) 11 C) 11.5
Step-by-step explanation:
1p/4$
A 50/4 = 12.5
B 44/4= 11
C 46/4
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Answer:
Brad average typing rate in words per minute is 21
1260 divided by 60 = 21
(In case you meant 30 minutes)
1260 divided by 30 = 42
Step-by-step explanation:
In a typing class, the average number N of words per minute typed after t weeks of lessons is
N=157/(1+5.4e^-0.12t)
N=157/(1+5.4e
−
0.12t)
. Find the time necessary to type 75 words per minute