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Nadya [2.5K]
3 years ago
14

Help,I don't understand.

Mathematics
1 answer:
lilavasa [31]3 years ago
6 0
How ever many out comes there are "n" under 2. Because soup + fish= 2 things.

Example:  \frac{2}{n}
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In a circle a chord 10 inches long is parallel to a tangent and bisects the radius drawn to the point of tangency. How long is t
Lorico [155]
Check the picture below.

keeping in mind that the point of tangency for a radius line and a tangent is alway a right-angle, since the "red" chord is parallel to the "green" tangent line outside, then the chord is cutting the "green" radius there in two equal halves at a right-angle, as you see in the picture.

we know the chord is 10 units long, so 5 + 5, since is perpendicularity with the radius will also cut the chord in two equal halves.

anyhow, all that said, we end up with triangle you see on the right-hand-side, and then we can just use the pythagorean theorem.

\bf \textit{using the pythagorean theorem}
\\\\
c^2=a^2+b^2
\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
-------\\
c=2a\\
a=a\\
b=5
\end{cases}\implies (2a)^2=a^2+5^2

\bf (2^2a^2)=a^2+25\implies 4a^2=a^2+25\implies 3a^2=25
\\\\\\
a^2=\cfrac{25}{3}\implies a=\sqrt{\cfrac{25}{3}}\implies a=\cfrac{\sqrt{25}}{\sqrt{3}}\implies a=\cfrac{5}{\sqrt{3}}
\\\\\\
\textit{and then we can \underline{rationalize the denominator} }
\\\\\\
a=\cfrac{5}{\sqrt{3}}\cdot \cfrac{\sqrt{3}}{\sqrt{3}}\implies a=\cfrac{5\sqrt{3}}{\sqrt{3^2}}\implies a=\cfrac{5\sqrt{3}}{3}

7 0
3 years ago
Which expressions have the same solution as –4(6)? Check all that apply.
geniusboy [140]

Answer:

4(-6), 6(-4), 12(-2)

Step-by-step explanation:

-4(6) = -4 x 6 = -24

so

4(-6) = 4 x -6 = -24

6(-4) = 6 x -4 =  -24

12(-2) = 12 x -2 = -24

8 0
2 years ago
Read 2 more answers
QR is the midsection of triangle GHJ, what is the length of QR?
Xelga [282]

Answer:

Step-by-step explanation:

QR = 27 ÷ 2 = 13.5

6 0
3 years ago
/Algebra/ please help, I'll help you if I can.​
viva [34]

Answer:

the answer is b and you can help by being my girl friend

Step-by-step explanation:

6 0
3 years ago
It'd be great if someone could help me on this!
Sever21 [200]

Answer: 144 cubic feet

Step-by-step explanation:

Volume = base times height.

Base = 20 square feet

Height = 7.2 feet

Volume = 20 square feet * 7.2 feet = 144 cubic feet

6 0
3 years ago
Read 2 more answers
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