Answer: Simple random sampling
Step-by-step explanation:
Given: A market researcher obtains a list of all streets in a town. She randomly samples 10 street names from the list, and then administers survey questions to every family living on those 10 streets.
Since she randomly samples street names , therefore the type of sampling is simple random sampling.
- A simple random sample is a sample that is a subset of the population the researcher surveyed selected in a way such that all the individuals in the population has an equal chance to be selected.
Step-by-step explanation:
substitution:
7x-9= 3x-1
4x= 8
x=2
The formula is y=mx+b
-3=34(-8)+b
-3=-272+b
-3-272=272-272+b
-275=b
Now that you have your slope and y-intercept plug that into your original equation.
y=34x-275
This is your final answer
Answer:
Correct option is c.
Step-by-step explanation:
The information provided is:
- It costs $83 a day to rent a car plus a required fee for insurance.
- The total cost for renting the car for 7 days is $621.
Then the cost of renting the car for 7 days will be, (83 × 7).
Let <em>b</em> denote the required fee for insurance.
Then the equation representing the total cost of renting is:
621 = 83(7) + b
Compute the value of <em>b</em> as follows:
621 = 83(7) + b
621 = 581 + b
b = 40
So, the correct option is c.
Answer:
So the value of sin20 = 0.342
Step-by-step explanation:
The value proportional or equivalent to sin20 can be gotten from calculator value directly or from a graph.
But right niw the most suitable answer is the value for the calculator because its difficulty and complications have been reduced
So the value of sin20 = 0.342