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Pani-rosa [81]
2 years ago
11

1. The cos120" is equal to

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
8 0

Answer:

Value of Cos 120 is -½.

Step-by-step explanation:

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If x &gt; y, then will always be an integer.<br> True<br> Or false
gayaneshka [121]

Answer:true

Step-by-step explanation:

3 0
2 years ago
Evaluate √7x(√x−7√7) please Show your Work thanks.
Veronika [31]

 expand by multiplying <span><span>√<span>7x</span></span>⋅<span>√x</span></span> and <span><span>√<span>7x</span></span>⋅7<span>√7</span></span> 

<span><span>√<span>7x</span></span><span>(<span>√x</span>−7<span>√7</span>)</span>=<span>√<span>7x</span></span>⋅<span>√x</span>−<span>√<span>7x</span></span>⋅7<span>√7</span></span>

<span>You can make√<span>7x</span></span> into <span><span>√7</span>⋅<span>√x</span></span>

<span><span>=<span>√7</span>⋅<span><span>√x</span>⋅<span>√x</span></span>−<span>√7</span>⋅<span>√x</span>⋅7⋅<span>√7</span></span><span>=<span>√7</span>⋅<span><span>(<span>√x</span>)</span>2</span>−<span><span>(<span>√7</span>)</span>2</span>⋅<span>√x</span>⋅7</span></span>

since squaring and square roots are opposite, they cancel

<span><span>=<span>√7</span>⋅x−7⋅<span>√x</span>⋅7</span>=x√7−49√x
I hope the square root symbols worked. I had to copy and paste from word. Hopefully this is what you needed!
</span>
8 0
3 years ago
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A kennel has eight adult dogs and 14 puppies what is the ratio of adult dogs two puppies use a multiplication to have comparison
frez [133]

Number of adult dogs a kennel has = 8 dogs.

Number of puppies = 14 puppies.

<h3>We need to find the ratio of adult dogs to puppies = Number of adult dogs: Number of puppies.</h3><h3>= 8:14.</h3>

Now, we need to write 8:14 in fraction form \frac{8}{14} .

Greatest common factor of 8 and 14 is 2.

\frac{8}{14} = \frac{2\times 4}{2 \times 7}=\frac{4}{7}.

<h3>Therefore, ratio of  adult dogs to puppies is 4:7.</h3>
4 0
3 years ago
Write the equation in slope-intercept form y−6=−2/5(x−10)
stellarik [79]

Answer: y = -2/5x + 10

Step-by-step explanation:

y − 6 = − 2/5 (x − 10)

do distributive property

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boom the answer :v

5 0
2 years ago
What does this mean?
boyakko [2]

Answer:

Its the symbol "pi" which is 3.14

3 0
3 years ago
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