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rusak2 [61]
3 years ago
8

5/3=23/6n+7/4-7/2n How to solve?

Mathematics
1 answer:
ser-zykov [4K]3 years ago
7 0

\dfrac{5}{3}=\dfrac{23}{6}n+\dfrac{7}{4}-\dfrac{7}{2}n\\\\LCM(2,\ 3,\ 4,\ 6)=12\\\\\dfrac{5}{3}=\dfrac{23}{6}n+\dfrac{7}{4}-\dfrac{7}{2}n\ \ \ \ |\cdot12\\\\12\cdot\dfrac{5}{3}=12\cdot\dfrac{23}{6}n+12\cdot\dfrac{7}{4}-12\cdot\dfrac{7}{2}n\\\\4\cdot5=2\cdot23n+3\cdot7-6\cdot7n\\\\20=46n+21-42n\\\\20=4n+21\ \ \ \ |-21\\\\-1=4n\ \ \ \ |:4\\\\\boxed{n=-\dfrac{1}{4}}

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<u>It's not given a scatter plot not the characteristics of the variables, but it can be safely assumed as shown below</u>

Answer:

<em>The diver's depth will be -42.9 after 30 minutes</em>

Step-by-step explanation:

The equation of the trend (or best fit line) for the scuba diver's depth in the ocean is:

y = -3.29x - 10

Where y is the diver's depth and x is the time in minutes.

To predict the diver's depth at x=30 minutes, substitute in the equation:

y = -3.29(10) - 10

y = -32.9 - 10

y = -42.9

Since no units are provided for y, the answer is:

The diver's depth will be -42.9 after 30 minutes

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4 years ago
Determine the equation of the parabola whose graph is given below. Write your answer in General Form. A parabola on a coordinate
dimaraw [331]

The equation of parabola becomes y = -2/25(x-3)^2 + 4.

According to the statement

we have given a graph and from this graph we have to find the equation of parabola in the general form.

So,

we know that the equation of parabola in general form is

y = a(x-h)^2 +k - (1)

From the graph we have:

a point on the graph is (x,y) = (-2,2)

the vertex of the graph is (h,k) = (3,4)

Now, substitute these values in the equation number (1)

Then

y = a(x-h)^2 +k

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2 = a(-5)^2 +4

2 = a(25) +4

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a = -2/25.

Now put a = -2/25 and (h,k) = (3,4) in the equation(1).

Then

the equation of parabola becomes y = -2/25(x-3)^2 + 4

So, The equation of parabola becomes y = -2/25(x-3)^2 + 4.

Learn more about equation of parabola here brainly.com/question/4061870

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6 0
2 years ago
Lena is asked to write an explicit formula for the graphed geometric sequence (3,6.25) (2,2.5) (1,1)
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The correct answer for this question is this one: "2.5"
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Hope this helps answer your question and have a nice day ahead.
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4 years ago
Read 2 more answers
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