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stealth61 [152]
3 years ago
13

The sum of two numbers is 20.8 and their difference os 10.2. Find these numbers.

Mathematics
1 answer:
Slav-nsk [51]3 years ago
6 0

Answer:

the numbers are 10.6 and 10.2

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The area of a swimming pool is 120 sq meters. The width of the pool is 8 meters. what is the length of the pool in centimeters ?
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M is proportional to the cube of r. when r=3m,m=216.when r=5 find the value of m
klio [65]

Answer:

The value of m is 1000 for r=5

Step-by-step explanation:

Given that m is proportional to the cube of r

It can be written as:

m \propto\ r^3

When the proportionality symbol is removed a proportionality constant is introduced in the equation.

Let k be the proportionality constant

m = kr^3

Given

r=3,m=216

Putting the values

216 = k(3)^3\\216 = k * 27\\k = \frac{216}{27}\\k = 8

The equation will now become

m = 8r^3

Putting r = 5

m = 8(5)^3\\m = 8 * 125\\m = 1000

Hence,

The value of m is 1000 for r=5

7 0
3 years ago
14. The equation of the line that passes through the
KIM [24]

Answer:

5.   y = -x

Step-by-step explanation:

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Now, using either point substitute into the point-slope form for a line:

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Using (-2,2) for (x_{1} , y_{1} ) we get y - 2 = -1(x +2)

y - 2 = -x - 2

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Answer 5 is the correct answer

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3 years ago
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