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bulgar [2K]
3 years ago
5

770 is 70% of what number?

Mathematics
1 answer:
Andreyy893 years ago
3 0

Answer:If you are using a calculator, simply enter 770×100÷70, which will give you the answer.

Step-by-step explanation:

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A new park in the shape of a hexagon will have 66 sides of equal length. On a scale drawing, the coordinates of the vertices of
solniwko [45]
The answer is: 13 units.  
__________________________________________________
Each side of the park is 13 units long.
_______________________________
(Assuming hexagonal shape will have 6 (SIX) sides of equal length).
_________________________________________________
Explanation:
__________________________
Let us assume you meant to write that the: "...new park, in the shape of hexagon, will have 6 (six) side of equal length."
_________________________________________
From the coordinates given, we can infer that this is a "regular" hexagon. 
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Here is one way to solve the problem:  Find the length of ONE side of the hexagon.
_____________________
Let us choose the following coordinates: (18,0), and (6.5, 5).  Let the distance between these points , which would equal ONE side of our hexagon, represent "c", the hypotenuse of a right triangle. We want to solve for this value, "c".
_____________________
Let the distance on the x-axis, from (6.5, 0) to (18.5, 0);  represent "b", one side of a right triangle.  
   → We can solve for "b" ;  → b = 18.5 - 6.5 ;  → b = 12 .
___________________________________________________'
Let the distance from (6.5, 0) to (6.5, 5) ; represent "a"; the remaining side of the right triangle.
__________________
 → a = y₂ - y₁ = 5 - 0 = 5 ; 
________________________________________________
{Note: We choose the particular coordinates, including "(6.5, 0)", because the distances between the coordinates chosen form a "right triangle";  (with "c", representing a "hypotenuse", or "slanted line segment"; which would be also be "ONE line segment of the given regular hexagon", which is our answer, because each line segment is the same values, so we only have to find the value of ONE line segment, or side, of the hexagon.).
    When considering the given coordinates: "(6.5, 5)", and "(18.5, 0)", a "right triangle" can be formed at the coordinate, "(6.5, 0),

By choosing this particular letters (variables) to represent the sides of a "right triangle", we can solve for the "hypotenuse, "c", using the Pythagorean theorem for the sides of a right triangle: 
______________________
 → a² + b² = c² ; in which "c" represents the hypotenuse of the right triangle
and "a" represents the length of one of the other sides; and "b" represents the length of the remaining side. (Note: All triangles have three sides).
_____________________________
We have: a = 5 ;  b = 12 ; → Solve for "c" ; 
______________________________________
 → a² + b² = c² ;  ↔  c² = a² + b²  ; Plug in the known values for "a" & "b" ;
___________________________________
→ c² = a² + b² ;  → c² = 5² + 12² ;

→ c² = 25 + 144 = 169 ;   →  c²  = 169 ;
_________________________________________
→ Take the square root of each side; to isolate "c" on one side of the equation; and to solve for "c" ;
______________________________
 →  c²  = 169 ;  √(c²) = √(169) ;  →  c = ± 13; 
 
 → ignore the negative value; since the side of a polygon cannot be a negative number; 
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 →  c = 13 ; The answer is: 13 units.
________________________________
8 0
4 years ago
Read 2 more answers
HELP ME PLEASEEEE ASAP
ss7ja [257]

Answer:

C

Step-by-step explanation:

Remember that you flip the signs whenever you divide an inequality by a negative.

So here we divide both sides by negative four and then scan the signs to get

x ≥ -8

3 0
3 years ago
Read 2 more answers
Tony can grow 4 flowers with every seed packet. How many seed packets does Tony need to have in total of 16 flowers in his garde
TEA [102]

4 is your answer and brainliest if you don't mind

Explain: 1 seed packet 4 flowers 4 seed packets 16 flowers 4 x 4 =16

5 0
4 years ago
3. What is the sum or difference? 3x8 - 7x8​
sammy [17]

Answer:

-32

Step-by-step explanation:

3*8=24

-7*8=-56

-56+24=-32

8 0
3 years ago
Simplify (sinx + cosx) ^2/ sin2x
Aleksandr [31]

\csc 2x+1

Step-by-step explanation:

  • \frac{(\sin x+\cos x)^2}{\sin2x}

  • We expand (\sin x+\cos x)^2 using algebraic identity (a+b)^2=a^2+b^2+2ab

  • =\frac{\sin^2x+\cos^2x+2\sin x.\cos x}{\sin2x}

  • = \frac{1+\sin2x}{\sin2x}

  • =\frac{1}{\sin2x}+\frac{\sin2x}{\sin2x}

  • =\csc 2x+1
8 0
2 years ago
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