Circle A with equation (X – 10)2 + (y - 3)2 = 16 is enlarged to match circle B with equation (x - 10)2 + (y - 3)2 = 49. Determine the scale factor needed for this
enlargement

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

this is answer of 144 cubic meters

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -