3 years ago

Wordly wise book 5 lesson 17

Mathematics

1 answer:

Novay_Z [31]3 years ago

8 0

Answer: whats the question

Step-by-step explanation: put a image on the question

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What is the vertex of the quadratic equation y = - 1/3 (x + 2)^2 +5

Wewaii [24]

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Step-by-step explanation:

$\text{The vertex form of a quadratic equation:}\\\\y=a(x-h)^2+k\\\\(h,\ k)-vertex\\---------------\\\text{We have:}\\\\y=-\dfrac{1}{3}(x+2)^2+5=-\dfrac{1}{3}(x-(-2))^2+5\Rightarrow h=-2\ \text{and}\ k=5\\\\\text{therefore the vertex is:}\ (-2,\ 5)$

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In a art class, there are 32 pens to 40 brushes what is the ratio of pens to brushes written as a fraction in simplest form ?

kolezko [41]

32/40 is the fraction to 32:40 and if u simplify it, it would be 4/5

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3 years ago

Jamie recently started working as manager at a company. He will be paid an annual salary of $54,400 and will be paid monthly. Th

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2 years ago

The pilot of a plane wants to fly 800 miles east and 155 miles north of the airport. To the nearest degree, in what direction sh

Cerrena [4.2K]

Its b your welcome hope it helps

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3 years ago

The total revenue R earned (in dollars) from producing a gift box of candles is given by R(p)=-10p^2+800p, where p is the price

kherson [118]

A.) R(20) = -10(20)^2 + 800(20) = -10(400) + 16000 = -4000 + 16000 = $12,000

R(25) = -10(25)^2 + 800(25) = -10(625) + 20000 = -6250 + 20000 = $13,750

R(30) = -10(30)^2 + 800(30) = -10(900) + 24000 = -9000 + 24000 = $15,000

b.) For maximum revenue, dR/dp = 0
dR/dp = -20p + 800 = 0
20p = 800
p = 40

Therefore, the maximum revenue will be recorded when the price is set at $40.

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3 years ago