What is the greatest common monomial factor of this polynomial? 21x4y5z+28x2y4z4 Enter your answer in the box.
1 answer:
Answer:
Step-by-step explanation:
The greatest common factor of 21=7·3 and 28=7·4 is 7.
The greatest common factor of x^4 and x^2 is x^2 (the term with the smallest exponent).
The greatest common factor of y^5 and y^4 is y^4.
The greatest common factor of z and z^4 is z.
21x^4·y^5·z+28x^2·y^4·z^4 = 7x^2·y^4·z·(3x^2·y + 4z^3)
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Answer:
C.
Step-by-step explanation:
Alan and his classmates found that the line of best fit through the data had the equation
The slope of this line is
If a line would intersect this line of best fit at right angles, then the two lines are perpendicular to each other.
The slopes of perpendicular lines are negative reciprocals of each other,
Hence that line must have slope
Therefore we look for a line whose slope is from the given options.
That line is the third option