3 years ago

Is area and radius the same thing

Mathematics

1 answer:

Igoryamba3 years ago

3 0

No , area is the surface area of a surface . It's unit is in cm square
radius is half of the diameter of a circle

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devlian [24]

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∠B ≈ 56.25°

Step-by-step explanation:

Since the triangle is right use the cosine ratio to solve for B

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B = $cos^{-1}$ ( $\frac{5}{9}$ ) ≈ 56.25°

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Show that the transformation T defined by T(x1, x2) = (2x1 - 3x2, X1+4, 5x2) is not linear.

erastovalidia [21]

Let u = (1, 0) and v = (0, 1). Then

T (u) = (2*1 - 3*0, 1 + 4, 5*0) = (2, 5, 0)

T (v) = (2*0 - 3*1, 0 + 4, 5*1) = (-3, 4, 5)

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but

T (u + v) = T (1, 1) = (2*1 - 3*1, 1 + 4, 5*1) = (-1, 5, 5)

=> T (u + v) ≠ T (u) + T (v)

which means T does not preserve addition, so it is not linear.

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