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2 years ago

(x-4)(x+3)(x-5) I am confused

Mathematics

2 answers:

jok3333 [9.3K]2 years ago

6 0

X^2-6x^2-7x+60
Roots
x = -3
x = 4
x = 5

The graph

Fynjy0 [20]2 years ago

5 0

ANSWER:

x³ - 6x² -7x + 60

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Step-by-step explanation:

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3 years ago

John is selling tickets to an event. Attendees can either buy a general admission ticket, x,

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John sold 18 general admission tickets and 11 VIP tickets.

Step-by-step explanation:

Given,

Cost of each general admission = $50

Cost of each VIP ticket = $55

Total tickets sold = 29

Total revenue generated = $1505

Let,

x represent the number of general admission tickets sold

y represent the number of VIP tickets.

x+y=29 Eqn 1

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Multiplying Eqn 1 by 50

$50(x+y=29)\\50x+50y=1450\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(50x+55y)-(50x+50y)=1505-1450\\50x+55y-50x-50y=55\\5y=55$

Dividing both sides by 5

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Putting y=11 in Eqn 1

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John sold 18 general admission tickets and 11 VIP tickets.

Keywords: linear equation, elimination method

Learn more about elimination method at:

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3 years ago

Sally finds a coin with a radius of 1.5 centimeters and a thickness of 0.25 cm. It has a measured mass of 18.54 grams. How can S

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Step-by-step explanation:

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<u>Volume of a cylinder</u>

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Given:

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Substituting given values into the formula to find the volume:

$\sf \implies V=\pi (1.5)^2(0.25)$

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$\sf \rho=\dfrac{m}{V}$

where:

$\rho$ = density
m = mass
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Given:

m = 18.54 g
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Substituting given values into the density formula:

$\implies \sf \rho=\dfrac{18.54}{0.5625 \pi}$

$\implies \sf \rho=10.49149385\:g\:cm^{-3}$

Given:

$\textsf{Density of Lead}=\sf 11.3\:g\:cm^{-3}$

$\textsf{Density of Silver}=\sf 10.49\:g\:cm^{-3}$

Therefore, as $\sf \rho=10.49\:g\:cm^{-3}$ the coin is made from silver.

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