Answer:
a. You used the restroom 13 times this year.
b. The equation is 65 minutes divided by 5 minutes = 13 times you left class.
Step-by-step explanation:
If you used the bathroom for 65 minutes, and each visit was 5 minutes, you divide 65 / 5 to get 13.
We can determine the mass of liquid mercury inside the vial by taking the diffrence between the filled vial and the empty vial. The weight of liquid mercury is 130.24 grams. The equivalent volume is obtained through the density. The volume is 9.626 cm3. If the substance inside is water, the volume is 130.632 grams
Answer:
0.8508
Step-by-step explanation:
In this question, we are asked to estimate the probability of getting at least 12 correct answers.
X ~ Bin ( n , p)
Where n = 60 , p = 1/4 = 0.25
Mean = np = 60 * 0.25 = 15
Standard deviation = sqrt [ n p ( 1 - p) ] = Sqrt [ 60 * 0.25 ( 1 - 0.25) ] = 3.3541
Using normal approximation
P(X < x) = P(Z < ( x - mean) / SD )
P(X >= 12) = P(X > 11.5)
= P(Z > ( 11.5 - 15) / 3.3541 )
= P(Z > -1.04)
= P(Z < 1.04)
= 0.8508
Answer:
Here you go
Step-by-step explanation:
i just drew it/. you werent specific so this is it
X = y
y = 4
By the substitution property, we can replace y with 4 in that first equation.
x = 4