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blagie [28]
3 years ago
7

Please I need help on #3

Mathematics
1 answer:
tino4ka555 [31]3 years ago
3 0

Answer:

36 movies

Step-by-step explanation:

16/4=4 this shows that there are 4 4s in 16.

Because every 4 video games 9 movies are rented so 4*9=36 for the answer

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Answer:

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Step-by-step explanation:

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Solve the inequality 4-5&lt;25
SVETLANKA909090 [29]

Answer:

4_5=_1 then -1 is <25 25_1 25<-1

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2 years ago
Which point gives the vertex of ƒ(x) = –x2 + 4x – 3?
Dmitriy789 [7]

Answer:

The vertex is (2,1)

Step-by-step explanation:

ƒ(x) = –x^2 + 4x – 3

Factor out the negative

   = -(x^2 -4x+3)

 Factor

What 2 numbers multiply to +3 and add to -4

-3*-1 = 3

-3+-1 = -4

f(x) =  -( x-3)(x-1)

Find the zeros

0 = -( x-3)(x-1)

0 = x-3   0 = x-1

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The x value of the vertex is 1/2 way between the two zeros

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To find the y value, substitute x=2 in

f(2) =  -( 2-3)(2-1)

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4 0
3 years ago
write the equation of the parabola and a vertex form and standard form given the following information​
beks73 [17]

Answer:

see explanation

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

(9)

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y = a(x - 3)² - 2

To find a substitute (2, 3) into the equation

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y = 5(x² - 6x + 9) - 2

   = 5x² - 30x + 45 - 2

y = 5x² - 30x + 43 ← in standard form

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Here (h, k) = (2, - 5), thus

y = a(x - 2)² - 5

To find a substitute (5, 4) into the equation

4 = a(5 - 2)² - 5 ( add 5 to both sides )

9 = a(- 3)² = 9a ( divide both sides by 9 )

a = 1

y = (x - 2)² - 5 ← in vertex form

y = x² - 4x + 4 - 5

y = x² - 4x - 1 ← in standard form

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hllo dear

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