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Annette [7]
3 years ago
14

An image of two concentric circles is shown with r2 = 6 and r1 = 2:

Mathematics
1 answer:
AysviL [449]3 years ago
5 0

The radius of the Outer circle (with r₂) is 6 and the radius of the inner circle (with r₁) is 2. When objects are similar, they have a proportional relationship. If we take the outer circle and squeeze by one third, we get a radius of 6 x 1/3 = 2. On the other hand, if we start with the inner circle and stretch it by 3, we get a radius of 2 x 3 = 6.


Thus, to make r₂ similar, we use a scale factor of 1/3. The third choice is best.

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a granulated cylinder actually contains 7.5 mL of water when Han measures the volume of the water inside the granulated cylinder
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A landscaper buys 1 gallon of plant fertilizer. He uses 1/5 of the fertilizer, and then divides the rest into 3 smaller bottles.
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Answer:

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Please help!!!<br><br> i need help with this
goblinko [34]

Answer:

Step-by-step explanation:

Combine like terms. Like terms have same variable with same power

a) (2xy + 4x) + (15xy - 5x)  = <u>2xy + 15xy</u> +<u> 4x - 5x</u>

                                         = 17xy - x

b) (6a + 4b² - 3) + (3b² - 5) = 6a + <u>4b² + 3b²</u>  <u>- 3 - 5 </u>

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d) (7b - 6a  + 9y) - (12b + 5a - 2y) =

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                                                   = 7b - 12b  -6a - 5a  + 9y + 2y

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Answer:

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