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3 years ago

N/n^2-1 over 3n/n^2+8n+7

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

6 0

Answer:

Step-by-step explanation:

i did it

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What is the equation of the graph below? A graph shows a parabola that opens up and crosses the x axis at negative two and negat

Anastaziya [24]

Answer:

$y=(x+3)^{2} -1$

Step-by-step explanation:

General equation of a parabola that opens up is $y=a(x-h)^{2} +k$ , a>0

So equation becomes $y=(x-h)^{2} +k$ which implies option A and option B can never be true for this parabola.

Also this parabola's vertex lies in 3rd quadrant where coordinates of both x and y will be negative.

So, the equation of parabola will be of the form $y=(x+h)^{2} - k$

Hence, option 4 that is $y=(x+3)^{2} -1$ is correct.

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3 years ago

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Hi please help with algebra 1(best if you could explain how you got the answer)

Eduardwww [97]

Answer:

x=5

Step-by-step explanation:

f(x) = 7

We want to find the x value so that y = 7

Looking at the graph, the x value when y = 7 is x=5

f(5) =7

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3 years ago

Evaluate r=5

Salsk061 [2.6K]

Answer:

$\sum (r+1)^2 = 90$

Step-by-step explanation:

Given

$\sum (r+1)^2; r = 1,2....5$

Required

Evaluate

$\sum (r+1)^2; r = 1,2....5$ is equivalent to :

$(1 + 1)^2 +(2 + 1)^2 +(3 + 1)^2 +(4 + 1)^2 +(5 + 1)^2$

$(2)^2 +(3)^2 +(4)^2 +(5)^2 +(6)^2$

$4 + 9 + 16 + 25 + 36$

$90$

Hence:

$\sum (r+1)^2 = 90$

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3 years ago

A recliner chair has a retail price of $260 and it is on a sale at a 30% discount . How much less is the sale price than the ret

andrezito [222]

Answer:

$78

Step-by-step explanation:

260 * 0.3 = 78

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3 years ago

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Sonya has a picture that is 5 inches tall and 12 inches wide. She would like to enlarge it to fit a space on her wall. If the sp

LenaWriter [7]

Answer:

40 inches tall

Step-by-step explanation:

h=5 w=12

5:12

so to increase to 96 inches wide and find height we can use the known ratio and arrive at...

40:96

h=40 w=96

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3 years ago