Answer:
72
Step-by-step explanation:
The area (A) of a rhombus is calculated as
A =
× d₁ × d₂ (d₁ and d₂ are the diagonals )
The diagonals bisect each other at right angles
d₁ = 2 × 6 = 12
Use the tangent ration in the upper left right triangle and the exact value
tan60° = 
tan60° =
=
=
( multiply both sides by 6 )
opp = 6
, then
d₂ = 2 × 6
= 12
Thus
A =
× 12 × 12
= 6 × 12
= 72
(3x - 1) + 5
Hope this helps!
Answer:
y= 126
Step-by-step explanation:
The given equation is: y= 3x-2x^2+5x^3
Substituting the value x=3 in the above equation,we get
y= 3(3)-2(3)^2+5(3)^3
⇒y= 9-2(9)+5(27)
⇒y= 9-18+135
⇒y= 126
<h2><u>
EXPLANATION</u></h2>
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Note : You only need to substitute, divide and eliminate the numbers to simplify.
Hope it helps.
<h2><u>
ANSWER DETAILS</u></h2>
<em>Subject : Mathematics</em>
<em>Class : 9th Grade</em>
<em>Chapter : -</em>
<em>Categorization Code : -</em>
<em>Keywords : Substitution, Algebra. </em>
Answer:

Step-by-step explanation:
(-2,-5) (6,-1)


