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Doss [256]
3 years ago
8

Which is the graph of f(x) = (x+1)(x-3)

Mathematics
2 answers:
wolverine [178]3 years ago
7 0

Answer:

The graph of the function  is attached below. Graph (b) is correct.

The function is

Explanation:

The given function is .

The graph of the function represents downward parabola as the function has negative sign.

Solve the function to obtain the zeroes.

The zeroes of the function are  and .

In graph 2 the zeros are  and .

The graph of the function  is attached below. Graph (b) is correct.

Graph (a) doesn’t represent the graph of the function.

Graph (b) represents the graph of the function.

Graph (c) doesn’t represent the graph of the function.

Graph (d) doesn’t represent the graph of the function

Step-by-step explanation:

ki77a [65]3 years ago
5 0

Answer:

3

Step-by-step explanation:

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Davette wants to buy flannel sheets. She reads that a weight of 190 grams per square meter is considered high quality. Davette f
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The answer is the one that is $42.  It is the lowest cost for the amount of flannel you get and the quality.  
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Find the length of the unknown side. Round your answer to the nearest tenth.
Paraphin [41]

Answer:

<em>The correct option is:  11.5</em>

Step-by-step explanation:

Suppose, the length of the unknown side is  x

So, here the length of hypotenuse is 14 and the lengths of other two sides are 8 and x.

As the given triangle is right angle triangle, so <u>using Pythagorean theorem</u>, we will get.........

8^2+x^2= 14^2\\ \\ 64+x^2=196\\ \\ x^2=196-64=132\\ \\ x=\sqrt{132}=11.489...\approx 11.5

<em>(Rounded to the nearest tenth)</em>

So, the length of the unknown side is 11.5

6 0
3 years ago
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The price of a car was increased from $3,600 to $4,500. What was the percent of the increase?
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Answer:

25%

Step-by-step explanation:

.25(3,600)=900

3,600+900=4,500

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3 years ago
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State whether the given scale factor would "enlarge", "reduce" or preserve" the size of a figure.
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Calculate the average rate of change over the interval 2
Morgarella [4.7K]

Answer:

Average rate of change over the interval 2<= x <= 5:

y = 3x + 5:        3

y = 3x^2 + 1:     21

y = 3^x:             78

<u />

Step-by-step explanation:

2<= x <= 5

Average rate of change over the interval 2<= x <= 5:

<u>y = 3x + 5</u>

y(5) = 3(5) + 5 = 20

y(2) = 3(2) + 5 = 11

Average rate of change = (20 - 11)/(5-2) = 9/3 = <u>3</u>

<u />

<u>y = 3x^2 + 1</u>

y(5) = 3(5^2) + 1 = 75 + 1 = 76

y(2) = 3(2^2) + 1= 13

Average rate of change = (76 - 13)/(5-2) = 63/3 = <u>21</u>

<u />

<u>y = 3^x</u>

y(5) = 3^5 = 243

y(2) = 3^2 =9

Average rate of change = (243-9)/(5-2) = 234/3 =<u> 78</u>

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3 years ago
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