Rori is observing elite marching bands as part of her dissertation study. She is particularly interested in drum major leadership styles and behavior. She has found that the drum major at her current research site is very interested in showing off for her. This is an example of:

a. response bias.
b. researcher bias.
c. sampling bias.
d. instrumentation bias.

answer

point o.

step-by-step explanation:

hi,

6x times 4 is 24x and 5 times 4 is 20, so the answer is 24x+20.

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4th option is correct xy=-10

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x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a