3 years ago

Please help See the picture Line A , B , C OR D ? Help

Mathematics

1 answer:

emmainna [20.7K]3 years ago

8 0

Answer:

It's the one on the bottom left

Step-by-step explanation:

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The diameter of a circle 8 centimeters. What is the circles area?use 3.14 for n

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Answer:

50.24 cm^2

Step-by-step explanation:

Area = Pi r^2

A = (3.14) (4^2)

A = 50.24 cm^2

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3 years ago

Which of the following is irrational?

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Answer:

Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers. This is opposed to rational numbers, like 2, 7, one-fifth and -13/9, which can be, and are, expressed as the ratio of two whole numbers.

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3 years ago

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kolbaska11 [484]

Answer:

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Step-by-step explanation:

The constant of proportionality for Andy is 1.

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3 years ago

a cell phone carrier charges flat fee 40 dollars total cost talking 20 minutes 41 dollars what is the rate of change of the cost

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4 years ago

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Find the solution of this system of equations <br> -6y=-50-4x <br> 5x-6y=-49

Maslowich

Answer:

Step-by-step explanation:

Rewrite the first equation

$-6y=-50-4x\\\\4x-6y=-50$

Now we have the following system of equations

$4x-6y=-50\\5x-6y=-49$

To solve the system of equations multiply the first equation by -1 and add it to the second equation

$-1*4x-(-1)*6y=-50*(-1)\\\\-4x+ 6y=50$

$-4x+ 6y=50$

$5x-6y=-49$

-----------------------------------

$x + 0 =1\\\\x=1$

Now substitute the value of x in any of the two equations and solve for y

$5(1)-6y=-49$

$5-6y=-49$

$-6y=-49-5$

$-6y=-54$

$y=\frac{54}{6}$

$y=9$

The solution is:

$(1,\ 9)$

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3 years ago

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