3 years ago

In ABC, if m find the measure of each angle.

Mathematics

1 answer:

monitta3 years ago

6 0

Answer:

Let the angles have measures 2x,3x,4x

Then 2x+3x+4x = 180

and the rest is easy

Step-by-step explanation:

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Cuanto es menos 7 mas 2

irina [24]

Answer:

the answer is -5. you could really just use a calculator this is pretty basic math.

Step-by-step explanation:

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3 years ago

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The question is in the screenshot

Sidana [21]

Answer:

b. -36/77

Step-by-step explanation:

As 0 < x < $\pi$ /2 => tan x > 0

As 0< y < $\pi$ /2 => tan y > 0

We have the formula:

$\frac{1}{sin^{2}x } =1 + cot^{2}x$ => $\frac{1}{(8/17)^{2} }$ = $1+cot^{2}x$ => $cot^{2} x=225/64$

As tan x = 1/(cotx) => $tan^{2}x = \frac{1}{cot^{2}x} =\frac{1}{225/64} = \frac{64}{225}$

As tan x > 0 => tan x = 8/15

$\frac{1}{cos^{2}y } = 1+tan^{2}y$ => $\frac{1}{(3/5)^{2} } = 1 + tan^{2} y$ => $tan^{2}y=\frac{16}{9}$

As tan y > 0 => tan y = 4/3

As tan (x-y)= $\frac{tan x - tan y}{1+ tanx * tany}$ $=\frac{(8/15)-(4/3)}{1+(8/15)*(4/3)} = \frac{-36}{77}$

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3 years ago

Find the surface area of the triangular prism.

Ivahew [28]

I think it's 462.99, rounded it's 463

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F(x) = –x^2– 10 Find f(-4)

Maksim231197 [3]

The answer would be -26
-(-4)^2-10
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3 years ago

PLEASE HELP SOLVE!!!!!!!! -72 < 8m < -32 -5r > -15 or r + 5 > 14

denis23 [38]

That's the first one

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3 years ago