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3 years ago

A triangle has two angles that each measure 50° What is the measure of the third angle?

Mathematics

1 answer:

Lorico [155]3 years ago

6 0

Answer:

80 or 2

Step-by-step explanation:

triangles = 180degrees

50+50+x=180

x=80

Hope this helps plz hit the crown :D

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What is the surface area of the prism, in square centimeters?

elixir [45]

Answer:

182

Step-by-step explanation:

2( \frac{1}{2} \times 4 \times 6 ) + 2( 5 \times 10 ) + ( 6 \times 10 )

= {182cm}^{2}

7 0

3 years ago

A small box measures 5 in. across, 8 in. deep, and 6 in. tall. A book that measures 5 x 8 x 1 in. fits perfectly into the bottom

Kobotan [32]

Answer:

5x⋅(8x)⋅1=40x2

Step-by-step explanation:

Use the given functions to set up and simplify

5x⋅(8x)⋅1.

7 0

4 years ago

If cos⁡ x=−45, and 180° < x < 270°, what is tan⁡(2x)?

iVinArrow [24]

$Tan2x =\frac{-24}{7}$

<u>Step-by-step explanation:</u>

Here we have , cos x = -4/5 ( corrected as given -45 which is not possible ) ,

180° < x < 270° i.e. in third quadrant . We need to find tan⁡(2x) . Let's find out:

⇒ $Tan\alpha = \frac{sin\alpha }{cos\alpha }$

⇒ $Tan\alpha = \frac{\sqrt{1-(cos\alpha)^2} }{cos\alpha }$

⇒ $Tan\alpha = \frac{\sqrt{1-(\frac{-4}{5})^2} }{\frac{-4}{5} }$

⇒ $Tan\alpha = \frac{-5}{4}\sqrt{1-(\frac{16}{25}) }$

⇒ $Tan\alpha = \frac{-5}{4}\sqrt{(\frac{25-16}{25}) }$

⇒ $Tan\alpha = \frac{-5}{4}(\frac{3}{5}) }$

⇒ $Tan\alpha = \frac{-3}{4}$ , since in third quadrant . $Tan\alpha = \frac{-3}{4}$ remains same .

Now , $Tan2x = \frac{2tanx}{1-(tanx)^{2}}}$

⇒ $Tan2x = \frac{2tanx}{1-(tanx)^{2}}}$

⇒ $Tan2x = \frac{2(\frac{-3}{4})}{1-(\frac{-3}{4})^{2}}}$

⇒ $Tan2x = \frac{-3}{2}(\frac{16}{7})$

⇒ $Tan2x =\frac{-24}{7}$

Therefore, $Tan2x =\frac{-24}{7}$ .

5 0

4 years ago

Help Please!<br> Find the value of x for which ABCD must be a parallelogram.

Pepsi [2]

Answer:

Step-by-step explanation:

We know that the opposite sides of a parallelogram are equal so:

25x+1=7x+37

18x=36

x=2

4 0

3 years ago

What’s the sum of 4+4?<br> (Yw)

Olegator [25]

its just 4+4 its 8

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers