F(3) = $4 + $2.5(3)
f(3) = $4 + $7.5
f(3) = $11.50
Is there any picture so I can help you?
Angle DEG= 7.5 and angle GEF= 11.25
Answer: The number of days would be 7 days.
Step-by-step explanation:
Since we have given that
Variance = 30°
Standard deviation = √30 = 5.47
Mean = 4°
At 95% confidence, z = 1.96
So, number of days that the researcher select to measure the temperature would be

Hence, the number of days would be 7 days.
Answer:
B
Step-by-step explanation:
A: -(3/-2)=-(-3/2)=3/2
B:3/-2=-3/2
C:-(-3/2)=3/2
D:-3/-2=3/2