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Salsk061 [2.6K]
3 years ago
7

The scatterplot below shows the number of year of experience of 8 different wedding photographers and the number of weddings the

y photographed over
the last year. Based on the scatterplot, what would be the best prediction of the number of weddings that a photographer with 7 years of experience would
photograph in a year?
Mathematics
1 answer:
Lena [83]3 years ago
4 0

Answer: 57

Step-by-step explanation:

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Write the following quotient in the form a+bi.<br> -7i/2-7i
Helga [31]

Answer:

\large\boxed{\dfrac{49}{53}-\dfrac{14}{53}i}

Step-by-step explanation:

\text{Use}\\\\i=\sqrt{-1}\to i^2=-1\\\\(a-b)(a+b)=a^2-b^2\to(a-bi)(a+bi)=a^2+b^2\\\\\text{distributive property}\ a(b+c)=ab+ac\\---------------------\\\\\dfrac{-7i}{2-7i}=\dfrac{-7i}{2-7i}\cdot\dfrac{2+7i}{2+7i}=\dfrac{-7i(2+7i)}{2^2+7^2}=\dfrac{(-7i)(2)+(-7i)(7i)}{4+49}\\\\=\dfrac{-14i-49i^2}{53}=\dfrac{-14i-49(-1)}{53}=\dfrac{-14i+49}{53}\\\\=\dfrac{49}{53}-\dfrac{14}{53}i

8 0
3 years ago
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One liter of paint covers 100 square feet. How many gallons of paint does it take to cover a room whose walls have an area of 80
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Its 3200 square feet so 32 gallons
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A new car that sells for $19,000 depreciates (decreases in value) 21% each year. What is the decay factor, b? 0.79 0.21 79 21
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The decay factor is 0.21 ((:
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\frac{137+150+144+149+x}{5} =141

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7 0
3 years ago
4(y+8)=100 help me pls due today
Otrada [13]

Answer:

y=17

Step-by-step explanation:4(y+8)=100

We move all terms to the left:

4(y+8)-(100)=0

We multiply parentheses

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