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3 years ago

Two concentric circles with different radii share how many common tangent lines?

1 answer:

7 0

The answer is a.0

Concentric means these circles would have the same center, thus, the smaller circle must be inside the bigger circle. Any tangent line to the smaller circle wont be a tangent line to the bigger circle, since that tangent line would intersect at the bigger circle at 2 points. Any tangent line to the big circle will not touch the small circle... so the answer would be 0.

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Two angles from a linear pair. the measure of one angle is 2/3

posledela

Answer:

First angle = 117 degrees.

Second angle = 63 degrees.

Step-by-step explanation:

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3 years ago

Determine the greatest common factor of 15xy^7z and 30x^2y^7z

yawa3891 [41]

Answer:

$15x {y}^{7} z$

Step-by-step explanation:

<h3>Factorize the Expressions</h3>

$15x {y}^{2} z = 3 \times 5 \times x \times y \times y \times y \times y \times y \times y \times y \times z$

$30 {x}^{2} {y}^{7} z = 2 \times 3 \times 5 \times x \times x \times y \times y \times y \times y \times y \times y \times y \times z$

<h3>Factor out the Common Factors</h3>

$gcf = 3 \times 5 \times x \times y \times y \times y \times y \times y \times y \times y \times z$

<h3>Multiply the Common Factors</h3>

$3 \times 5 \times x \times y \times y \times y \times y \times y \times y \times y \times z = 15x {y}^{7} z$

The Factored expressions are

$15x {y}^{7} z$

And

$15x {y}^{7} (2x)$

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3 years ago

What is 3 1/4 as a decimal?

timurjin [86]

Answer:

3.25 :)

Step-by-step explanation:

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3 years ago

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A school needs 25 butterfly breeding kits, and places an order with an educational company. They already have 7 kits, and they r

Nina [5.8K]

25 - 7 = 18 | 18 - 3 = 15 The school received 15 kits in the box. The reason why is because there are 3 kits that they haven't received yet. Then there were 7 that they already had, so that means there are 10 kits that wont be included in the box.

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3 years ago

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The range of the inverse of f(x) is ?

sashaice [31]

Answer:

{ -4,-2,0,2,4}

Step-by-step explanation:

The range of the inverse is the domain of the function

The domain of the function is the x values

Domain{ -4,-2,0,2,4}

This is also the range of the inverse