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leva [86]
3 years ago
9

Napstablook makes some very amazing spooky tunes

Mathematics
1 answer:
yan [13]3 years ago
8 0

Answer:

? is that the question? is there a link for it or something?

Step-by-step explanation:

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350 is 70% of what number <br> A) 500<br><br> B) 420<br><br> C)245 <br><br> D)280
cupoosta [38]

Answer:

A

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Pre-calculus Help Please! Express the complex number in trigonometric form.
lana66690 [7]
We have that

 3 = 3 + 0i -----------> rewrite as 3(1 + 0i) 

<span>So now what we have to do is figure out which of the above expressions has cos a = 1 and sin a = 0. </span>
<span>cos 0 = 1, and sin 0 = 0, so that's the answer that we want. 

</span><span>the answer is: </span>
3 = 3(cos 0 + i sin 0)
3 0
4 years ago
Factorise the expression 3a2-4ab as far as possible
horsena [70]
In this case, you have to find a common multiple of 3a^2 and 4ab. As only one of the numbers is divisible by two, this means that two cannot go outside of the bracket. The only other aspect that is in both sides of the equation is a, therefore, this goes outside the bracket. The best way to approach this is to divide both sides by a, and this will give you what is inside the bracket. 3a^2 divided by a is 3a, therefore, this is the first aspect in the bracket. -4ab divided by a, leaves -4b. Therefore, these go in the bracket.
3a^2- 4ab simplified is a(3a-4b)
Hope this helps 
7 0
3 years ago
In a 30°- 60° - 90° right triangle, the shorter leg has a length of 4.
Studentka2010 [4]
In a 30°-60°-90° triangle, the ratio of the legs is \sqrt{3}:1

So if the shorter leg is 4, then the longer leg is 4\sqrt{3}
5 0
4 years ago
Compute f '(x) algebraically for the given value of
Vlad [161]

f'(x) = - 6

hence f'(1) = - 6

f'(x) = - 6 for all real values of a

3 0
4 years ago
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