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Brums [2.3K]
2 years ago
8

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Mathematics
1 answer:
Vesna [10]2 years ago
3 0

Answer:

150

Step-by-step explanation:

150+30=180 (180= straight line)

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Find all polar coordinates of point P where P = (9,pi divided by 5).
RSB [31]

Answer:

(-9, π/5 + (2n + 1)π)

Step-by-step explanation:

Adding any integer multiple of 2π to the direction argument will result in full-circle rotations, which are identities, so this family is equivalent to the give coordinates:

(9, π/5 + 2nπ), for any integer n

Also, multiplying the radius by -1 is a point reflection, equivalent to a half-turn rotation. Then add π to the direction for another half turn, and the result is another identity. So this too is equivalent to the given coordinates:

(-9, π/5 + (2n + 1)π), for any integer n

7 0
3 years ago
Mr. Parker bought a coat when it was on sale. He paid 70% of the original price. He paid $42 for the coat. What was the original
fenix001 [56]

Answer:

70percent =42

100percent ×42 ÷70

100/7×42

10/7×42=60

therefore the original cost was $60

6 0
2 years ago
Read 2 more answers
Select the two binomials that are factors of this trinomial.
const2013 [10]

\huge{ \mathfrak{ \underline{question  : }}}

Select the two binomials that are factors of this trinomial.

x_2 + 8x + 12

\huge{ \mathfrak{  \underline{Answer   : }}}

  • {x}^{2}  + 8x + 12

  • {x }^{2}  + 6x + 2x + 12

  • x (x + 6) + 2(x + 6)

  • (x  + 2)(x + 6)

We got the factors as :

A. \: (x + 6)

and

D. \:  (x + 2)

\#TeeNForeveR

7 0
2 years ago
Paul is 20 years old. He is four times older than his sister.
attashe74 [19]

Answer: Paul will be 30 years old

Step-by-step explanation:Let the age of her sister be x, then from the given data

=> 4x = 20

=> x = 5 years

The age of her sister is 5 years

In the second case, paul is twice as old as his sister

=> Age of paul = 2(x)

=> Age of paul = 10 years

Paul will be 10 years old when he is twice as old as his sister

3 0
1 year ago
Read 2 more answers
What’s the x intersect of the equation<br> -25 - 12x = -(-8x - 6) -3(5x+12)
erik [133]

-25 - 12x = -(-8x - 6) - 3(5x + 12)

Distributive property.

-25 - 12x = 8x + 6 - 15x - 36

Combine like terms.

-25 - 12x = -7x - 30

Add 12x to both sides.

-25 = 5x - 30

Add 30 to both sides.

5 = 5x

Divide both sides by 5.

x = 1

The x-intersect is 1.

8 0
3 years ago
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