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Nastasia [14]
2 years ago
7

(9x-5)°+(6x+20)°=180

Mathematics
1 answer:
Radda [10]2 years ago
4 0

Answer:

67

Step-by-step explanation:

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Give the center, radius, and equation of the circle in the graph.
dexar [7]

Answer:

(x-2)^2+(y+3)^2=4

Step-by-step explanation:

  • A circle's equation consist on the following expression: (x-a)^2+(y-b)^2=r^2, where r is the magnitude of the radio, and (a,b) are the coordenates of the center of the circle.
  • In this case, a=2 and b= - 3, because the circle is centered in (x,y)=(2, - 3).
  • The radio, which is the distance between the center of the radio to any point in its border, equals r=2 (because of the scale of the graphic, in this case two squares of the grid equal 2 units, then r=2).
  • Finally, using the previous information to replace in the equation (x-2)^2+(y+3)^2=4, where the fact that r=2 and 2^2=4 was used.
3 0
3 years ago
Hazel bought a bread toaster from an online company the original price of the Bread toaster Was $50 she received a 20% discount
alexgriva [62]
C. 20% minus 10% is 10%.
3 0
3 years ago
Solve y=x^2 + 7 for x
crimeas [40]
Hello! To solve for x means to isolate x:

y = x^2 + 7
y - 7 = x^2
sqrt(y - 7) = x

Answer:
x = sqrt(y - 7)

Hope this helps!
5 0
3 years ago
The length of a square is 6 2/3 inches. What is the Perimeter of the square?
Kruka [31]

Answer:

<u><em>26 2/3 inches</em></u>

Step-by-step explanation:

<em><u>P=4s</u></em>

P= 4 × 6 2/3

P= <em><u>26 2/3 inches</u></em>

3 0
3 years ago
7w + w - 15 = 17 solve the equation. Check the solution
Rasek [7]

Answer:

Step-by-step explanation:

7w+w-15=17

8w=17+15  add like terms

8w=32 divide

w=32/8=4

now check

7*4+4-15=17

28+4-15=17

17=17

7 0
3 years ago
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