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patriot [66]
3 years ago
9

HELPPPPP PLEASEEEE!!!

Mathematics
1 answer:
AveGali [126]3 years ago
4 0

Answer:

\frac{1}{5^{2}}

 

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The estimated product of 20.7 and 9.18, after rounding both factors to the nearest whole number,
lesya692 [45]

Answer:

20.7 --> 21

9.18 --> 9

21x9 is 189, thus the estimated product is 189.

Let me know if this helps!

7 0
2 years ago
The value of sin^2 30° - cos^2 30° is​
natulia [17]

Answer:

-1/2

Step-by-step explanation:

Im not going to go into detail about how to compute sin30 and cos 30, but know that sine and cosine are just the ratios between the sides of a 30-60-90 triangle with a hypothenuse of 1.

With that being said:

sin^2 30 - cos^2 30

=  (1/2)^2 - ((sqrt3)/2)^2

= 1/4 - 3/4

= -1/2

7 0
3 years ago
Read 2 more answers
What is the common differenice for this arithmetic sequence?
yaroslaw [1]

Answer:

The answer is D.

Step-by-step explanation:

The difference between each term is 4.

-2 - (-6) = 4

2 - (-2) = 4

6 - 2 = 4

10 - 6 = 4

8 0
3 years ago
Read 2 more answers
Simplify to create an equivalent expression <br> -4(-11 + 4n) -3(-2n + 9)
Marizza181 [45]

Answer:

-71 + 22n is the equivalent expression.

This is the simplified expression.

Step-by-step explanation:

4(-11 + 4n) -3(-2n + 9)

= -44 + 16n + 6n - 27

= -44 + 22n - 27

= -71 + 22n

7 0
3 years ago
Read 2 more answers
How to solve for x where (2^x)*x =n?
Molodets [167]
Tough call.  
You may have to use Newton's Method or something like that.
Graph y=2^x and then graph n/x on the same set of axes.  You may have to assign some arbitrary value to n to make this work.  From the graph you can read off the approximate coordinates of the point of intersection.
4 0
3 years ago
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