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aniked [119]
3 years ago
10

Write and solve a real-world problem that can be modeled by the equation 0.75x-18.50=0.65x Finding X the variable

Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
6 0
I got x=185

0.75(185)-18.50=0.65(185)

120.25=120.25
Ne4ueva [31]3 years ago
3 0
Dang 10/10 Bbg,but you have to think yourself about that one XD dm me my instagram is davidxduran,im the cute one,dm me
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Suppose a scatter plot contains the points (12, 28), (15, 33), (21, 44), (29, 62), and (33, 68). Which of these points would be
yawa3891 [41]

Answer:

Unsure, take a look at the visualisation:

desmos(dotcom)/calculator/fjze0od81o

Replace the (dotcom) with ".com"    (   links are not allowed :(   )

Explanation:

None of the points look as though they are an outlier from the line of linear regression, although (29,62) looks furthest from the line so could be a possible answer although I would probably say there is no outlier.

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3 years ago
Find the length of the tangent segment AB to the circles centered at O and O' whose radii are a and b respectively when the circ
bixtya [17]

Answer:

AB=2\sqrt{ab}

Step-by-step explanation:

From figure,

OA=a,  \quad \quad O'B=b\\\Rightarrow OO'= (a+b) \quad \quad \text{and}\quad OD=(a-b)

In triangle OO'D

  (OO')^2=(OD)^2+(O' D)^2

\Rightarrow (a+b)^2=(a-b)^2+(O' D)^2\\\Rightarrow a^2+b^2+2ab-a^2-b^2+2ab=(O' D)^2\\\Rightarrow 4ab=(O' D)^2\\\Rightarrow O'D=2\sqrt{ab} \\\Rightarrow O' D=2\sqrt{ab}=AB \quad \quad [\because O' DAB\;\; \text{is a rectangle.}]

Hence, AB=2\sqrt{ab}

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4567 divided by 13 please <br> help
katrin2010 [14]
351.3 you can use calculators you know lol
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2 years ago
Find the number that makes the ratio equivalent to 7:3.<br><br><br><br>84:?
vodka [1.7K]

Answer:

36

Step-by-step explanation:

Divide 84 by 7

84 ÷ 7 = 12

Now multiply 3 by 12

3 × 12 = 36

Then

7 : 3 = 84 : 36

7 0
2 years ago
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What is a factor of 17
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A factor of 17 is 1. Another is 17.
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2 years ago
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