A = 1/2 h (b1+b2)
so
h = 2A / (b1+b2)
h = [2(3x^2 + 5x)] / (2x + 1 + <span>x + 4)
h = (6x^2 + 10x)/(3x +5)
h = 2x(3x + 5)/(3x +5)
h = 2x
answer: </span><span>height of a trapezoid = 2x</span>
The answer is b since a is 5,0,3,-4 which does not work c is-6,3,1,4 which does not work and d is 12,-5,2,8 which also does not work and b is the on KY one left - 7,-3,0,4
Cosine law
a²=b²+c²-2ab*cosA
a²=13²+11²-2*13*11*cos(108)≈378.37
a≈19.45
2 = 7 r statement
2/7 = r divide both sides by 7
8/15 = x/6
Using cross multiplication let us find the value of x .
= 15 × x = 6 × 8
<h3>= 15x = 48 </h3>
= x = 48 ÷ 15 ( transposing ×15 from LHS to RHS changes ×15 to ÷+5 )
= x = 3.2
Therefore , the equation that can be used to solve the proportion :-
<h2>B. 15x = 48</h2>
