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In-s [12.5K]
3 years ago
5

Why when I sum the angles I don't get 180

Mathematics
2 answers:
Irina-Kira [14]3 years ago
6 0
You don't have all the numbers, you don't know what X equals, you need to know what X equals in order to complete the equation
babymother [125]3 years ago
3 0
5x+20+7x-80=180
12x-60=180
x=20
I think that's the answer
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Which expression is equivalent??? help!
dexar [7]

Answer:

The equivalent expression for the given expression \sqrt[3]{256x^{10}y^{7} } is

4x^{3} y^{2}(\sqrt[3]{4xy} )

Step-by-step explanation:

Given:

\sqrt[3]{256x^{10}y^{7} }

Solution:

We will see first what is Cube rooting.

\sqrt[3]{x^{3}} = x

Law of Indices

(x^{a})^{b}=x^{a\times b}\\and\\x^{a}x^{b} = x^{a+b}

Now, applying above property we get

\sqrt[3]{256x^{10}y^{7} }=\sqrt[3]{(4^{3}\times 4\times (x^{3})^{3}\times x\times (y^{2})^{3}\times y   )} \\\\\textrm{Cube Rooting we get}\\\sqrt[3]{256x^{10}y^{7} }= 4\times x^{3}\times y^{2}(\sqrt[3]{4xy}) \\\\\sqrt[3]{256x^{10}y^{7} }= 4x^{3}y^{2}(\sqrt[3]{4xy})

∴ The equivalent expression for the given expression \sqrt[3]{256x^{10}y^{7} } is

4x^{3} y^{2}(\sqrt[3]{4xy} )

5 0
3 years ago
Find the area of the sector.
kicyunya [14]

Answer:

D. 158.4 km²

Step-by-step explanation:

Area of sector = θ/360 * πr²

Where,

θ = 150°

r = 11 km

Substitute

Area = 150/360 * π * 11²

Area = 158.38863 ≈ 158.4 km² (nearest tenth)

3 0
3 years ago
Can inverse operations that undo Another operation
ohaa [14]

Answer:

yes they can

Step-by-step explanation:

5 0
3 years ago
PLEASE GEOMETRY HELP WILL MARK BRAINLIEST!!!
yan [13]
D is the correct answer
7 0
3 years ago
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Neporo4naja [7]
15/3 - 14/2 

This is the expression you are looking for 

( I'm not 100% sure but I believe this is correct ! ) 

6 0
3 years ago
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