The local oil changing business is very busy on saturday mornings and is considering expanding. a national study of similar businesses reported the mean number of customers waiting to have their oil changed on saturday morning is 3.6. suppose the local oil changing business owner, wants to perform a hypothesis test. the null hypothesis is the population mean is 3.6 and the alternative hypothesis that the population mean is not equal to 3.6. the owner takes a random sample of 16 saturday mornings during the past year and determines the sample mean is 4.2 and the sample standard deviation is 1.4. it can be assumed that the population is normally distributed. the observed "t" value for this problem is

a. she will receive a refund of $278.

step-by-step explanation:

the area of a triangle is determined by the formula: base x height * 1/2

you'll need to assign a base to the triangle. based on the vertices given, the simplest base would be the line segment from (-2,1) to (2,1). the distance between any two numbers is found by just subtracting them. here, you should subtract the x values to find the distance of this side.

2 - (-2) = 4.

so the distance (aka the length of the base) is 4. the height of the triangle is the distance between the base and the highest point on the triangle which is (3,4). we should subtract the y values this time to find the height/distance.

4 - 1 = 3

so the height is 3.

base = 4

height = 3

hope this if needed hmu

if i knew id you bro,, my bad