2. -y(6x + 23+
(1.2)
The diagram shows the curve y = (6x + 2) and the point A(1, 2) which lies on the curve. The tangent
to the curve at A cuts the y-axis at B and the normal to the curve at A cuts the x-axis at C.
(i) Find the equation of the tangent AB and the equation of the normal AC.
[6]

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Ответ:

janreyes39

23.07.2022

Mathematics

10.8109 amu

Step-by-step explanation:

The average atomic mass of boron is determined as the average of the atomic masses of both isotopes weighed by their respective abundances.

Therefore, the average atomic mass is given by:

$M=10.0129*0.1991+11.0093*0.8009\\M=10.8109\ amu$

The average atomic mass of boron isotopes is 10.8109 amu.

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2. -y(6x + 23+ (1.2) The diagram shows the curve y = (6x + 2) and the point A(1, 2) which lies on the curve. The tangent to the curve at A cuts the y-axis at B and the normal to the curve at A cuts the x-axis at C. (i) Find the equation of the tangent AB and the equation of the normal AC. [6]