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Bond [772]
4 years ago
13

Square root of negative 72

Mathematics
1 answer:
Zina [86]4 years ago
3 0

Answer:

i6\sqrt{2} ,  i

( the comma means there is space between the sqrt of 2 and the i.

<em>Hope this helped and plz mark as brainliest!</em>

<em></em>

<em>Luna G.</em>

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Look at the PDF and help plz
KIM [24]
The answer should be b according to me
8 0
3 years ago
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A sequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n &gt; 2, an =
Licemer1 [7]
I think you mean a_n= \frac{a_{n-1}}{a_{n-2}}
basically that measn yo divide that term by the previous term
ok

a3=a1/a2=1/2
a4=a3/a2=(1/2)/2=1/4
a5=a4/a3=(1/4)/(1/2)=1/2
a6=a5/a4=(1/2)/(1/4)=2
a7=a6/a5=2/(1/2)=4
a8=a7/a6=4/2=2
a9=a8/a7=2/4=1/2
a10=a9/a8=(1/2)/2=1/4
ok, so notice a pattern
a3=a9
a4=a10
I therefor conclude that a_n=a_{n+6w} where w is a whole number
and n>2ok, so
241=6*39+7
so therefor
a_{241}=a_{7+6(39)}
therefor the 241th term is same as a7 or 4

I say a241 is 4
7 0
4 years ago
Read 2 more answers
Mary repairs microwaves. her revenue is modeled by the function r(h)=20+30h for every h hours she spends repairing microwaves. h
MrRa [10]
Answer: After 5 hours, Mary will be at the break even point.

To answer this question, we need to find the time when the cost equals the revenue.

Therefore, set our equations equal to each other and solve.

20 + 30h = 10h^2 - 80
0 = 10h^2 - 30h - 100
0 = h^2 - 3h - 10
0 = (h - 5)(h + 2)

Our solutions are h = 5 or h = -2. Only 5 hours makes sense in the context of this problem.
5 0
3 years ago
You have been asked to solve the system below. What method do you choose and why?
seropon [69]

Answer:

Elimination isn't exactly the easiest for this situation. But since the equations are in the same form and not solved for the same variable, I would go with elimination.  (If they were solved for the same variable, I would go with substitution.) It would require me to make a manipulation on both equations.

I would multiply first equation by 5 and second equation by -2.  The reason I would do this is because the y's would have opposite coefficients and when you add opposites you get 0.

The new set of equations would look like this:

20x+10y=45

-14x-10y=2

But I will slope here since we aren't asked to solve it.

Some texts use the term linear combination instead of elimination. They are the same.

7 0
3 years ago
Mattress Warehouse is having a sale on all mattresses. A twin and a king-size mattress are similar rectangles, and the ratio of
ivann1987 [24]

Answer:

Number 3

Step-by-step explanation:

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