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Gemiola [76]
2 years ago
12

I need help with this questions

Mathematics
1 answer:
SSSSS [86.1K]2 years ago
6 0

Answer:

<u>Picture 1</u>

Your choice C is correct

  • (x - (-2))² + (y - 9)² = 5² ⇒
  • (x + 2)² + (y - 9)² = 25

<u>Picture 2</u>

  • (x + 5)² + (y - 6)² = 36
  • (x - (-5))² + (y - 6)² = 6²
  • r = 6, (h, k) = (-5, 6)

Correct choice is C

<u>Picture 3</u>

  • (x + 5)² + (y + 2)² = 81
  • (x - (-5))² + (y - (-2))² = 9²
  • r = 9, (h, k) = (-5, -2)

Correct choice is C

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A fence is being built around a rectangular garden that is 8 1 /2 feet by 6 1/ 3 feet. Fencing comes in panels. Each panel is 2
astra-53 [7]

Answer:

Step-by-step explanation:

Total perimeter of garden = 2(8.5+6.33) = 29.66 Sq. ft.

No. of panels required = (29.66)/(2/3) = 45 panels approximately

3 0
3 years ago
Which of the following points could be the initial point of vector v if it has a magnitude of 10 an the terminal point (-1,5)?
Eddi Din [679]
Let the initial point of the vector be (x,y). Then the magnitude of the vector v can be written as:

|v|= \sqrt{ (-1-x)^{2} + (5-y)^{2} }

The magnitude of vecor v is given to be 10. So we can write:

10= \sqrt{ (-1-x)^{2} + (5-y)^{2} } \\ \\ 100=(-1-x)^{2} + (5-y)^{2}

Now from the given options, we have to check which one satisfies the above equation. That point will be the initial point of the vector. 

The point in option d, satisfies the equation.

100=(-1+7)^{2} +(5+3)^{2}  \\  \\ &#10;100=36+64 \\  \\ &#10;100=100

Thus, the answer to this question is option D
7 0
2 years ago
Evaluate.<br> (4/9)^2 pleaseee
vekshin1

Answer:

simplified: (16/81)

rewritten: (2/3)^4

Step-by-step explanation:

hope this helps! if wrong you can delete it :)

3 0
2 years ago
70% of a number is 98.
hammer [34]
The solution is as follows:

Set up the proportion:

70% - 98
90% - x

70% / 90% = 98 / x

7 / 9 = 98 /x

(7 / 9) x = 98

x = 98 x 9/7

x = 14 x 9

x = 126

The answer is <span>D. 126.


I hope my answer has come to your help. God bless and have a nice day ahead!</span>
8 0
3 years ago
What is the answer 5(x-4)=3x+4
ruslelena [56]

Step-by-step explanation:

Simplify the left side:

5x - 20 = 3x + 4

Move all terms containing  x  to the left side of the equation:

2x - 20 = 4

Move all terms not containing  x  to the right side of the equation:

2x = 24

Divide each term by  2  and simplify:

x = 12

4 0
3 years ago
Read 2 more answers
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