The answer for this is 2732
Answer:
All of the shapes are quadrilaterals.
Step-by-step explanation:
a quadrilateral is a four sided figure and all of the figures above contain 4 sides.
Answer:
solution of the equation are x = 3 and x = ±√3
Step-by-step explanation:
Given in the question an equation
x² / (2x-6) = 9 / (6x-18)
Step1
cross multiplication
x²(6x - 18) = 9 (2x - 6)
Step2
apply distributive law
6x³ - 18x² = 18x - 54
step3
rearrange the terms
6x³ - 18x² - 18x + 54 = 0
step4
divide by 6
x³ - 3x² - 3x + 9 = 0
x²(x-3) -3(x-3) = 0
(x-3)(x²-3) = 0
Step5
x = 3 and x² = 3
for factor x² = 3
take square root on both sides
√x² = √3
x = ±√3
Answer:
x=25
Step-by-step explanation:
x+y=100 (y being number of 8¢ stamps)
12x+ 8y = 900
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y = 100-x
12x + 8y = 900
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12x + 8(100-x) = 900
12x + 800 - 8x = 900
12x - 8x = 900 - 800
4x = 100
x=25