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Zigmanuir [339]

2 years ago

11

Which of the following pair(s) of circles have /as a common internal tangent? Select all that apply.

1 answer:

grigory [225]2 years ago

4 0

Answer:

A and B, A and C

Step-by-step explanation:

A and B touch at T same as A and C. The tangent is in between the two circles but through the touching points. B and C share the tangent but externally since at T it does not pass in between them.

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What is the product in simplest form x^2+9x+18/x+2 times x^2-3x-10/x^2+2x-24

german

$\dfrac{x^2+9x+18}{x+2}\cdot\dfrac{x^2-3x-10}{x^2+2x-24}=\dfrac{x^2+6x+3x+18}{x+2}\cdot\dfrac{x^2-5x+2x-10}{x^2+6x-4x-24}\\\\=\dfrac{x(x+6)+3(x+6)}{x+2}\cdot\dfrac{x(x-5)+2(x-5)}{x(x+6)-4(x+6)}$

$=\dfrac{(x+6)(x+3)}{x+2}\cdot\dfrac{(x-5)(x+2)}{(x+6)(x-4)}=\dfrac{(x+3)(x-5)}{x-4}\\\\=\dfrac{x^2-5x+3x-15}{x-4}=\dfrac{x^2-2x-15}{x-4}$

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2 years ago

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What is the area of the triangle in the coordinate plane?

AnnZ [28]

The answer to this is C.54 units² .

Area=1/2 base*height
base=12
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12*9=108
108/2=54
Area=54

5 0

3 years ago

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I suck at math lololol

Dima020 [189]

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Step-by-step explanation:

This image shows an example on corresponding angles.

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2 years ago

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Which ratio is not equivalent to -(1/3) (#6)

LuckyWell [14K]

Answer:

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Step-by-step explanation:

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2 years ago

Which expression is equal to 5^4 x 5^8 ? <br><br> A: 5^12<br> B: 5^4<br> C: 5^2<br> D: 5^−4

galben [10]

Something to remember is how to multiply terms with same bases, but different exponents:

$a^b \cdot a^c = a^{(b+c)}$

Essentially, we add the exponents.

Using the information above, we can find our answer:

$5^4 \cdot 5^8 = 5^{(4+8)} = \boxed{5^{12}}$

Our answer is $\boxed{5^{12}}$ , or A.

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2 years ago

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