Answer:
(0, 8 )
Step-by-step explanation:
Assuming the dilatation is centred at the origin then multiply the coordinates of point A by 2 , that is
A (0, 4 ) → A' (2(0), 2(4) ) → A' (0, 8 )
9514 1404 393
Answer:
a = √(b² +c² -2bc·cos(A))
a = √(c² -b²)
Step-by-step explanation:
For sides a, b, c, and opposite angles A, B, C, the general form of the law of cosines is ...
a² = b² + c² -2bc·cos(A)
An expression for 'a' can be written by taking the square root.
a = √(b² +c² -2bc·cos(A))
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If you recognize that cos(A) = b/c, then a substitution can be made:
a = √(b² +c² -2(bc)(b/c)) = √(b² +c² -2b²)
a = √(c² -b²) . . . . . . . same as the Pythagorean theorem
(5x-18)+(4x+7)=180
5x+4x=180+18-7
9x=191
x=191/9
Answer: x=191/9
Answer:
n=946 and n=947
Step-by-step explanation:
n + (n+1) = 1893.
2n + 1 = 1893.
2n + 1 - 1 = 1893 - 1.
2n = 1892
2n/2= 1892/2
n=946