All categories

3 years ago

Show and/or explain that sin C = sin(A+B) in any & ABC.

1 answer:

4 0

$\text{In any triangle ABC,}~\\\\A +B+C = \pi\\\\\text{Now,}\\\\\text{L.H.S}\\\\=\sin C\\\\=\sin\left[\pi - (A+B) \right]\\\\=\sin(A+B)\\\\=\text{R.H.S}\\\\\text{Showed.}$

You might be interested in

How many solutions can a single variable linear equation contain?

DENIUS [597]

One solution. Given that there is only one variable and it is linear, we know it must only have one solution. <span />

3 0

4 years ago

One minute after take off, an airplane altitude was 4,000 feet. Three minutes later , it was 20,000 feet what was the planes ave

Temka [501]

Answer:

The average altitude change of plane with time is 8,000 feet per min .

Step-by-step explanation:

Given as :

The initial height of plane after 1 min take off = 4,000 feet

The final height of plane after 3 min later = 20,000 feet

Let The rate of change of altitude in feet per min = s feet per min

Now, According to question

The change in altitude = final altitude - initial altitude

Or, D = 20,000 feet - 4,000 feet

I.e Distance change = 16,000 feet

The change in time = final time - initial time

Or T = 3 min - 1 min

I.e Time change = 2 min

Speed = $\dfrac{\textrm Distance}{\textrm Time}$

So, s = $\frac{16,000}{2}$ feet per min

∴ s = 8,000 feet per min

So, Rate of change of altitude with respect to time = s = 8,000 feet per min

Hence The average altitude change of plane with time is 8,000 feet per min . Answer

5 0

3 years ago

Tina is making a scale model of A monument that is 155 feet tall she uses a scale of 1 inch = 5 feet how tall should Tina make h

fenix001 [56]

Tina should make 31 inch tall model to replicate 155 feet tall monument.

Step-by-step explanation:

This problem can be solved by direct unitary methods easily-

Firstly, Scale is the ratio of the dimension of the original substance to the dimension of a model

Scale= original dimension/ model dimension

Model is the miniaturised representation of a substance.

The monument is 155 feet tall

Tina replicates it with a scale 1inch: 5 feet

Thus, this means that Tina would need 155*1/5 = 31 inch tall model to replicate the complete length of the monument.

Hence Tina needs to make 31-inch tall model.

3 0

3 years ago

Read 2 more answers

+87 points and guaranteed brainliest if you get it right :)

xenn [34]

The answer should be -10

8 0

3 years ago

Math Genius Needed :)

inessss [21]

Hey there!

the graph of g(x) is the graph of f(x) translated 3 units left .

7 0

3 years ago

Read 2 more answers