Simplify the given expression. 5a3(9ab3 – 5a2b2 + 2a3b)
Question 7 options:
45a4b3 – 25a5b2 + 10a6b
45a2b4 – 25a2b2 + 2a2b3
45a4b3 – 25a5b2 + 10a6b3
45a4b3 – 25a2b2 + 10a3b3

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.

answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.