3 years ago

Someone try this who smart

Mathematics

1 answer:

Lelechka [254]3 years ago

4 0

Answer:

Step-by-step explanation:

tHE center is F

the radio is from f to h

the chord is from r to U

and the diameter is from N to M

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2/5(d−10)−2/3(d+6) is

MissTica

Remove parentheses
2/5 • d-10 - 2/3 • d+6

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the answer
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3 years ago

I need help from uh all..

DanielleElmas [232]

Answer:

Step-by-step explanation:

Given expression is,

$\text{cot}A=\frac{1}{2}(\text{cot}\frac{A}{2}-\text{tan}\frac{A}{2})$

To prove this identity we will take the right side of the identity,

$\frac{1}{2}(\text{cot}\frac{A}{2}-\text{tan}\frac{A}{2})=\frac{1}{2}(\frac{1}{\text{tan}\frac{A}{2}}-tan\frac{A}{2})$

$=\frac{1}{2}(\frac{1-\text{tan}^2\frac{A}{2}}{tan\frac{A}{2}})$

$=\frac{1}{2}[\frac{2(1-\text{tan}^2\frac{A}{2})}{2tan\frac{A}{2}}]$

$=\frac{1}{2}(\frac{2}{\text{tan}A} )$ [Since $\text{tan}A=\frac{2\text{tan}\frac{A}{2}}{1-\text{tan}^2\frac{A}{2}}$ ]

= cot A

Hence right side of the equation is equal to the left side of the equation.

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3 years ago

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xeze [42]

Answer:

Step-by-step explanation:

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3 years ago

For a class trip, there are two adults for every 15 students. There are 238 people (adults and students) on the trip. How many s

-Dominant- [34]

Answer:

210

Step-by-step explanation:

x = num of adults

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Step-by-step explanation:

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