If A+B+C=180 Prove that Sin2A+Sin2B+Sin2C=4sinASinBSinC

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

3 0

73.246.170.19673.246.170.196

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A=zm+z solve for m please help!!!!!

Svetach [21]

Answer:

(a-z)/z = m

Step-by-step explanation:

a = zm+z

Subtract z from each side

a-z = mz+z-z

a-z = mz

Divide by z

(a-z) /z = mz/z

(a-z)/z = m

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3 years ago

Which expression is equivalent to 8(− 5+1.25x)−105(0.6x+1)?

Mice21 [21]

So the right answer is of option C (-53x-145)

Look at the attached picture

Hope it will help you

Good luck on your assignment

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3 years ago

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Harry is saving for a vacation. He kept track of how much he saved each month over the last six months in the following table. W

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3 years ago

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Help!! Lots of points

murzikaleks [220]

$\frac{ {5}^{2} }{ {2}^{2} } = {( \frac{5}{2}) }^{2}$
Since they are both squared.

Evaluating 5^2 and 2^2 and finding the quotient also works.

$\frac{ {5}^{2} }{ {2}^{2} } = \frac{5 \times 5}{2 \times 2} = \frac{25}{4} = 6.25\\ \frac{ {5}^{2} }{ {2}^{2} } = {( \frac{5}{2} )}^{2} = 2.5 \times 2.5 = 6.25$
The third option, "Evaluate 5^2 and 2^2 ...," and the last option, "Rewrite the expression as (5/2)^2 ...," are the correct choices.

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3 years ago

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A boat goes 3/4 hours with a speed of 8mph and 1/3 hours with a speed of 12mph. What distance did the boat cover in all this tim

Ludmilka [50]

Answer:

10 miles

Step-by-step explanation:

Distance d = v t

v - speed/velocity

t - time

d = $\frac{3}{4}$ (8) + $\frac{1}{3}$ (12) = 6 + 4 = 10 miles