2 years ago

Pleasee explainnnn #23

Mathematics

1 answer:

Lelu [443]2 years ago

5 0

Volume of a triangular pyramid is v=1/3AH so the answer is 8

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Claire is shopping at a shoe store. The store is having a sale and discounting all shoes by 35% of the marked price. She decides

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3 years ago

Help please just the answer needed

otez555 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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lisov135 [29]

$Domain:\\4-x\neq0\ \wedge\ 4+x\neq0\\x\neq4\ \wedge\ x\neq-4\\\\\dfrac{4}{4-x}=\dfrac{5}{4+x}\qquad\text{cross multiply}\\\\4(4+x)=5(4-x)\qquad\text{use distributive property}\\\\(4)(4)+(4)(x)=(5)(4)+(5)(-x)\\\\16+4x=20-5x\qquad\text{subtract 16 from both sides}\\\\4x=4-5x\qquad\text{add 5x to both sides}\\\\9x=4\qquad\text{divide both sides by 9}\\\\\boxed{x=\dfrac{4}{9}}$