A rectangle has a perimeter of 110 inches. The rectangle' s length is five more than twice the width.
1 answer:
Answer:
Length is 38 inches
Width is 16 inches
Step-by-step explanation:
Let the width be x inches
The length will be 2x + 5 inches
The perimeter is 110 inches
Perimeter is given by (2 × length) + (2 × width)
2(2x + 5) + 2x = 110 inches
4x + 10 + 2x = 110 inches
6x = 100 inches
x (width) = 100/6 = 16 inches
Length = 2(100/6) + 5 = 38 inches.
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Answer:
1) x= 3i, x= - 3i
2) x= +i, x = - i
Step-by-step explanation:
1) x^2+9=0
(x+3i)(x-3i)=0
x= 3i, x=-3i
2) x^2-4=-11
x^2=-7
x= ±i
x= +i, x = - i
hope this helps!! :))