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Rus_ich [418]
3 years ago
15

This table shows the battery percentage of a phone after it

Mathematics
1 answer:
Vsevolod [243]3 years ago
5 0

Answer:

yint -= (0,100) slope = -5 2/3

Step-by-step explanation:

yint is (0,100) because thats where it hits the y axis

slope equation is (y1-y2)/(x1-x2), just pick out any two points to do this with

(83-66)/(3-6)

17/-3

-5 2/3

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Chris is 2 years old and Jenny is 4 years old. In how many years will Jenny be 7 years younger than twice Chris' age?
makkiz [27]
Let x be the unknown number of years.
Let C be Chris' age and J be Jenny's age.
Then J+x = 2(C+x)-7
    ... describes this situation.
          4+x = 2(2+x) - 7
           4+x = 4 + 2x - 7
               x  =  2x -7         becomes 7=x

In 7 years, Jenny will be 7 years younger than twice Chris' age.

Check:  Is this true?     4+7 = 2(2+7)-7
                                       11  =  18-7, or 11=11               TRUE
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Monica reads a 7 1/2 pages of a mystery book in 9 minutes. What is her average reading rate in pages per minute?
mrs_skeptik [129]

Answer:

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PLEASE HELP!<br> What is the relationship between vectors, complex numbers and polar coordinates?
Vera_Pavlovna [14]

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Given

\begin{gathered} \text{Circumference of Circle = 13.2 unit} \\ \pi\text{ = 3.14} \end{gathered}

Required :

\text{length of radius (r) = ?}

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\text{Circumference of circle = 2}\pi r

When we substitute and simplify:

\begin{gathered} 13.2\text{ = 2 }\times\text{ }\pi\text{ }\times\text{ r} \\ \text{making r the subject of formula} \\ r\text{ = }\frac{13.2}{2\text{ }\times\text{ 3.14}} \\ r\text{ = 2.1019} \\ \approx\text{ 2.1 unit (1.d.p)} \end{gathered}

6 0
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