A researcher compares the effectiveness of two different instructional methods for teaching physiology. A sample of 181 students using Method 1 produces a testing average of 57.5. A sample of 227 students using Method 2 produces a testing average of 65. Assume the standard deviation is known to be 14.26 for Method 1 and 7.48 for Method 2. Determine the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2. Step 1 of 2 : Find the critical value that should be used in constructing the confidence interval.

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation:

so the possibilities of the measurement of the side of the triangle are either it is longest side or not the longest side

when it is the longest side

s < 25 + 35s < 60

if it is not the longest side

35 < 25 + s10 < sso 10 < s < 60so the perimeter70 < p < 130

answer: i could not see part the question so ill explain how to get the answer

step-by-step explanation: for instance the distance she travele d is 10 and she traveled the same amout each mile so do 10 divided by how many miles she drove each time and you ge your answer.

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)