Answer:
The percent of these mothers are between the ages 30-35 is 36.53%
Step-by-step explanation:
we are given
mean of age =31.7 years

standard deviation of 5.2 years

For age=30 years:
x=30
we can find z-score

we can plug values


For age=35 years:
x=35
we can find z-score

we can plug values


now, we can use normal distribution table

now, we can find percentage

=36.53%
Answer:
the corrrect answer is B
Step-by-step explanation:
Answer:
3. JH is a line.
4. Line IK
Step-by-step explanation:
Answer: y=3/4x + 1/2
Step-by-step explanation: Parallel lines must have the same slope, so you already know the equation must be something like y=3/4x+b. You are given a point that the line goes thru(2,2), so you can plug this point into the equation to solve for b.
(2)=3/4(2) + b
2=6/4 + b
2= 3/2 + b
b= 2-3/2
b=4/2- 3/2
b=1/2
so y=3/4x + 1/2