The hypotenuse is 2x, the base is x*sqrt(3) and the left base if x
X= width
length= 3x-7
Area: (x)(3x-7)=40
= 3x^2-7x=40
= 3x^2-7x-40=0
Factorise the equation: (3x+8)(x-5)=0
x=-8/3 (reject because width cannot be negative) or x=5
so width is 5cm and length is 3(5)-7= 8cm !
Answer:
w = -5
Step-by-step explanation:
Hello there!
9+7w-9=5w-10
Add 9 and -9 since we can add those
7w=5w-10
Use subtraction Prop of Equality (combining/simplifying like terms)
2w = -10
Now isolate the w by dividing 2w by 2 and use the division prop of equality
w = -5
Hope this helps. Feel free to comment for further explanation.
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Step-by-step explanation:
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