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saul85 [17]
4 years ago
15

How do you find a percentage from a whole number

Mathematics
1 answer:
Vladimir79 [104]4 years ago
6 0

Answer:

Step-by-step explanation:

If you are finding a percentage of a whole number you will use the equation (final answer/whole number) or if its out of 100 you can easily just put a percentage sign in front of it as it is already a final answer over 100.

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Given the function f(x)=x2+2x+1, find: f(2b)
pashok25 [27]

I will do the first one only. The second question is done the same way.

Replace every x you see in the function with 2b and do the math.

f(x) = x^2 + 2x + 1

Let x = 2b

f(2b) = (2b)^2 + 2(2b) + 1

f(2b) = 4b^2 + 4b + 1

Did you follow? That's all there is to it.





4 0
3 years ago
Please #3 is wrong i need help i only need the answer to it
Vaselesa [24]

3x² + 4

3.-3.-3 + 4

27 + 4

31

hope it helps...!!!

7 0
2 years ago
Read 2 more answers
Here you gooooo 20 freeee pojntdsssss
yuradex [85]

Answer:

thanks

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Abby used the law of cosines for TriangleKMN to solve for k.
torisob [31]

Answer:

  m∠K = 37° and n = 31

Step-by-step explanation:

A lot of math is about matching patterns. Here, the two patterns we want to match are different versions of the same Law of Cosines relation:

  • a² = b² +c² -2bc·cos(A)
  • k² = 31² +53² -2·31·53·cos(37°)

<h3>Comparison</h3>

Comparing the two equations, we note these correspondences:

  • a = k
  • b = 31
  • c = 53
  • A = 37°

Comparing these values to the given information, we see that ...

  • KN = c = 53 . . . . . . . . . . matching values 53
  • NM = a = k . . . . . . . . . . . matching values k
  • KM = b = n = 31 . . . . . . . matching values 31
  • ∠K = ∠A = 37° . . . . . . . matching side/angle names

Abby apparently knew that ∠K = 37° and n = 31.

__

<em>Additional comment</em>

Side and angle naming for the Law of Sines and the Law of Cosines are as follows. The vertices of the triangle are labeled with single upper-case letters. The side opposite is labeled with the same lower-case letter, or with the two vertices at either end.

Vertex and angle K are opposite side k, also called side NM in this triangle.

5 0
2 years ago
33.33333 rounded to the nearest tenth
Airida [17]

Answer:

33.3

Step-by-step explanation:

since it's 3 and not higher than 5 the value would be rounded down

8 0
2 years ago
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