Answer:
A) 12 over 13
Step-by-step explanation:
Sine = opposite side/hypotenuse
opposite side = 12
hypotenuse = 13
sin A = 12/13
Answer:
2x - y - 12 = 0
Step-by-step explanation:
the equation of a line in standard form is
Ax + By + C = 0 ( A is a positive integer and B, C are integers )
given
2x - 9 = y + 3 ( subtract y + 3 from both sides )
2x - y - 12 = 0 ← in standard form
Let the number be n. Then
n^2 - (n/2)^2 = 108.
n
From this we get n^2 - (---- )^2 = 108.
2
Mult. both terms by 4, with the result 4n^2 - n^2 = 432
Then 3n^2 = 432, and n^2 = 144. n could be either 12 or -12. You must check both answers by subst. them into the original equation.
Answer:
Step-by-step explanation:
34
Answer:
see explanation
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal
(a)
= 
, substitute values
= 
( cross- multiply )
7.2XZ = 117 ( divide both sides by 7.2 )
XZ = 16.25 cm
---------------------------------------
(b)
= , substitute values
= ( cross- multiply )
18QR = 122.4 ( divide both sides by 18 )
QR = 6.8 cm
