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Nezavi [6.7K]
3 years ago
8

What is the answer to this question

Mathematics
1 answer:
solmaris [256]3 years ago
5 0

Answer:

Number of protons

Step-by-step explanation:

The atomic number represents the number of protons that are in the nucleus. This says what chemical properties something has and where it is located on the periodic table.

Best of Luck!

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Which expression is equivalent to (3c)-2?
fredd [130]

Answer:

Assuming that the notation there is meant as:

(3c)^{-2}

then the answer would be 1/(9c²)

If the -2 is indeed just subtraction and not an exponent, then it is simply 3c - 2

4 0
3 years ago
Audrey takes a sheet of paper and makes a diagonal cut from one corner to the opposite
Elodia [21]

\large{\underline{\underline{\pmb{\frak {\color {blue}{Solution:}}}}}}

Let us take the width of the paper as base, the cut she made be hypotenuse and the paper's length be perpendicular.

Here,

Hypotenuse (H) = 87 inch

Base (B) = 60 inch

Perpendicular (P) = [To be calculated]

As, we can use Pythagoras theorem to find. So by using Pythagoras theorem :

H² = P² + B²

{87}^{2}  =   {P}^{2}  +   {60}^{2}  \\  \\  \implies \: 7569 =   {P}^{2}  + 3600 \\  \\  \implies \: 7569 - 3600 =  {P}^{2}  \\  \\  \implies3969 =  {P}^{2}  \\  \\  \implies \: P =  \sqrt{3969}  \\  \\ \implies \: P = 63

The length of the paper is 63 inches.

\boxed{ \frak \pink{BrainlyDamurai}}

5 0
2 years ago
I need help with this please
Allisa [31]

Answer:

0.45

Step-by-step explanation:

Using the x and y slope formula you divide then get 0.45

8 0
3 years ago
What is the axis of symmetry for the function f(x) =-2x^2+4x+1 is the line x=1 where is the vertex of the function located?
Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

hello :

f(x) =-2x²+4x+1       Completing The Square : f(x) =2(x²+2x)+1

f(x) = -2((x²-2x+1)-1)+1

f(x) = -2((x-1)²-1)+1

f(x) =2(x-1)²+1  ... verex form   when the vertex is (1,1)

the axis of symmetry  is x=1

5 0
3 years ago
What is the trigonometric ratio for cos N?
bagirrra123 [75]
If we look at our SOHCAHTOA rule:
cos(x) = adj/hyp

The adjacent side of N is 36, and the hypotenuse is 39.

Therefore:
cos(N) = 36 / 39
5 0
4 years ago
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