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aleksklad [387]
3 years ago
7

Which of these numbers are irrational?

Mathematics
1 answer:
aleksley [76]3 years ago
5 0

Answer:

its A

Step-by-step explanation:

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How is the formula for the circumference of a circle derived? Drag and drop the correct word into each box to complete the expla
n200080 [17]

Answer:

diameter

circumference

\pi

diameter

Step-by-step explanation:

First, find the length of the diameter (d) and the length of the circumference of the circle (c).

Next, divide the length of the circumference c by the length of the diameter d and set up an equation

\dfrac{c}{d}=\pi

where the ratio equals to \mathbf{\pi } (the definition of \pi)

Then, solve the equation for the circumference c:

c=\pi d

Finally, substitute 2 times the radius for the diameter

c=\pi \cdot 2r=2\pi r

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3 years ago
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Solve the system.<br><br> {y=5/6x+1<br> {−x+y=2
astraxan [27]
You can substitute the value of y(5/6 x + 1) from the first equation for y in the second and get -x + ( \frac{5}{6} x+1) = 2&#10; which becomes - \frac{1}{6} x + 1 -1=2-1&#10; and you get 
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4 years ago
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What is the area of this composite figure? <br> A . 12ft²<br> B. 80ft²<br> C. 88ft²<br> D. 100ft²
Eva8 [605]

Answer:

c.)88^2

Step-by-step explanation

4 0
3 years ago
Find the 11th term from the end of the A.P 10,7,4.... -62.​
Mademuasel [1]

Term 11=a+10d

Here

a=10

d= 7-10= -3

Term 11;

=10+(10×-3)

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3 0
3 years ago
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Solving radical equations
My name is Ann [436]

Answer:

  • top: no solution
  • bottom: x = 7

Step-by-step explanation:

I find a graphing calculator very helpful to solving radical equations. It helps avoid extraneous solutions.

<u>top</u>

  √(-14x +2) = x -3

  -14x +2 = x² -6x +9 . . . . . square both sides

  x² +8x +7 = 0 . . . . . . . . . .subtract the left side

Descartes' rule of signs tells you this has no positive real solutions. (There are no sign changes among the coefficients.) The value of the radical will be non-negative, so we must have x-3≥0, or x≥3. Since there are no positive real solutions to the quadratic, there are no values of x≥3 that will satisfy the equation. NO SOLUTION

__

<u>bottom</u>

  4√(x -3) = 8 . . . . . given

  √(x -3) = 2 . . . . . . divide by 4

  x -3 = 4 . . . . . . . . . square both sides

  x = 7 . . . . . . . . . . . add 3

3 0
4 years ago
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