Answer:
The value of b will be squared
Step-by-step explanation:
Recall that the quadratic formula is 
You will see that the only squared coefficient is b.
You just simply divide 7 by 30. The answer would be 0.233333
Answer: 4 hours
It says that she cuts the 144 pieces of baklava into 36 pieces on each pan so all you have to do is divide it which will give you 4 pans. It also takes an hour to bake each so since there are now 4 pans of baklava it will take her 4 hours to bake each one
Answer:
Length = 160 and width = 55 yards
Step-by-step explanation:
Perimeter = 2L + 2W where L = the length and W = the width.
L = 3W - 5 (given).
So substituting for L is the formula for the perimeter:-
2(3W - 5) + 2W = 430
6W - 10 + 2W = 430
8W = 440
W = 55 yards.
So the Length L = [430 - 2(55]) / 2 = 160 yards.
Patients who visit a clinic for the first time are asked to answer 15 questions about their health history.
Survey
A researcher randomly chooses 20 patients who come to the clinic with the flu and gives them an experimental drug. A randomly chosen group of 20 patients who come in with the flu receive a placebo.
Experiment
A doctor at the clinic asks patients who come in with a headache how many hours of sleep they get on a typical night.
Observational Study
