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dalvyx [7]
3 years ago
14

Please help me! I need this answered fast!

Mathematics
1 answer:
zysi [14]3 years ago
3 0

Answer:

Number 5 is D

Number 6 is A

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The total amount spent by some number of people on clothing and footwear In the years 2000-2009 can be modeled by the quadratic
FinnZ [79.3K]

For this problem, we are given a quadratic equation that models the total amount spent on clothing and footwear in the years 2000-2009. We need to use the model to determine the maximum amount spent during the period.

The equation is shown below:

f(x)=-4.462x^2+71.54x+97.44

Since the leading term is negative, the vertex of this function will represent an absolute maximum value. Therefore we can determine the vertex to answer the problem, the vertex's coordinates are given below:

\begin{gathered} x_{max}=\frac{-b}{2a}\\ \\ y_{max}=f(x_{max}) \end{gathered}

Then we have:

\begin{gathered} x_{max}=\frac{-71.54}{2\cdot(-4.462)}=8.017\\ \\ y_{max}=-4.462\cdot(8.017)^2+71.54\cdot(8.017)+97.44=384.2 \end{gathered}

In the year 2008, 384 billion was spent on clothing and footwear.

4 0
1 year ago
PLEASE HELP!! this is due today! I will mark the brainliest!
densk [106]

Answer:

the answer is C

Step-by-step explanation:

4 0
3 years ago
Which product represents the fraction of the circle that is shaded?<br> A<br> B<br> C<br> D
beks73 [17]
Answer:
The product that represent the fraction of the circle that is shaded should be B. 1/4*2/3

Step by step explanation:
That is because when multiplied it’s 1/6.
1/4* 2/3= 2/12
2/12 /2 = 1/6
3 0
3 years ago
Which triangles are similar?
Helga [31]
I believe the answer is B
8 0
2 years ago
What is the value of x in the triangle below?<br> 40<br> 70<br> 140<br> 160
Mumz [18]

Answer:

where is the Triangle below

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3 years ago
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