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Nutka1998 [239]
3 years ago
5

What is the circumference of the following circle? diameter=9cm

Mathematics
1 answer:
Tom [10]3 years ago
7 0

Answer:

The circumference of the following circle is 9π (around 28.274)

Step-by-step explanation:

The circumference can be found by using the following formula, where d is the diameter of the circle...

dπ = 9π ≈ 28.274

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Donnie's height increased by 9 is 74 . Use the variable d to represent Donnie's height.
aliya0001 [1]
D= 74 -9 (which is 65)
5 0
2 years ago
Read 2 more answers
-4x+y=23 and 4x-9y=-15
astra-53 [7]

Answer:  x= -6; y= -1

Step-by-step explanation:

-4x + y = 23

4x - 9y = - 15

-4x + y = 23

      y = 23 + 4x     [Add 4x to both side]

4x - 9(23 + 4x) = - 15

4x - 207 - 36x = - 15

-32x - 207 = -15

-32x = 192             [Add 207 to both side]

    x = -6                [Divide -32 from both side]

-4x + y = 23

-4(-6) + y = 23          [Plug in -6 for x]

24 + y = 23              [Subtract 24 from both side]

       y = -1

5 0
3 years ago
(- 5x + 3y) (2x – 12y + 1)<br> Multiply
Sonbull [250]

The answer for this problem i −10x2+66xy−36y2−5x+3y

Let's solve it by step by step.

(−5x+3y)(2x−12y+1)

=(−5x+3y)(2x+−12y+1)

=(−5x)(2x)+(−5x)(−12y)+(−5x)(1)+(3y)(2x)+(3y)(−12y)+(3y)(1)

=−10x2+60xy−5x+6xy−36y2+3y

So, -10x2+66xy-36y2-5x+3y

If this didn't help you, you can also use blocks to help!

©HWsolver in brainly.com

3 0
3 years ago
The distance between the points (1,2) and (x,-1) is 5 units. Find the possible values of x​
Mariulka [41]

Answer:

-3,5

Step-by-step explanation:

d =  \sqrt{(x _{2}  - x _1)  {}^{2} + (y _{2} - y _{1} {} ) {}^{2}  }

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

5 =  \sqrt{(x - 1) {}^{2} + ( - 3) {}^{2}  }

25 = (x - 1) {}^{2}  + 9

16 = (x - 1) {}^{2}

4 = x - 1

x = 5

Or

- 4 = x - 1

x =  - 3

7 0
2 years ago
Community planners are planning to build a new community garden. They agree that the garden will be rectangular in shape, but th
skad [1K]

Answer:

2)

Step-by-step explanation:

To find the original width, multiply 15.8 by w, and by 5.2.

You'll get 327.65 = 15.8w + 82.16.

Next, do the opposite of the symbol from both sides, 327.65 - 82.16 = 15.8w + 82.16.

The constant is 82.16, and the symbol is +, the opposite of plus is -, and thus subtract the constant from both sides.

You'll get 245.49 = 15.8w.

Now do the opposite of the symbol (a number next to a variable is multiplication, so do division, and divide 15.8 on both sides.

245.49/15.8 = 15.8w/15.8, which equals 15.5373417722.

7 0
2 years ago
Read 2 more answers
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