3 years ago

Rules ⬆️ a dinosaur park cost $5.00 to enter plus $0.75 taxes. How much does it cost if a family of 4 went to the park

Mathematics

1 answer:

Bas_tet [7]3 years ago

5 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

972

Step-by-step explanation:

so you put it up and down 72

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Solve the equation. x2 18x 81 = 25 a. 14, 4 b. –4, –14 c. 14, –14 d. –4, 4

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The answer is the option B

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Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

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in this problem we have

$x^{2}+18x+81=25$

$x^{2}+18x+56=0$

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substitute in the formula

$x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}$

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$x=\frac{-18(+/-)10} {2}$

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$x2=\frac{-18-10} {2}=-14$

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4 years ago

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