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inna [77]
2 years ago
10

The radius of a circle is 5 feet. What is the circumference?

Mathematics
1 answer:
givi [52]2 years ago
7 0
The answer is 31.42ft
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If B is the midpoint of ac, ab=x+6, and ac =5x-6, then what is bc?
anygoal [31]
Subtract AB (x+6) from AC (5x-6) to obtain BC
BC should be equal to 4x-12
6 0
3 years ago
-3+3r=12 can u solve this using algebra??
Dima020 [189]
-3+3r = 12
3r = 12+3
3r = 15
r = 5
3 0
3 years ago
X + 8 = -15, x = ?<br> What is X? Please give a explanation on how you got your answer
Katarina [22]

Answer:

-23

Step-by-step explanation:

I just did 8+15=23 but made it negative. so you can do

-23+8= -15

8 0
3 years ago
Read 2 more answers
Hey i know this question is linked to Pythagorean theorem but i am still confused. So, please help me if you can ❤️
antiseptic1488 [7]

Step-by-step explanation:

From Pythagorean theorem, one of the sides can be determined as x^2 + y^2 =8^2

or y = (8^2 - x^2)^(1/2)

we can write the perimeter P as

P = 2x + 2y ---> 20 = 2x + 2(8^2 - x^2)^(1/2)

Dividing by 2, we get

10 = x + (8^2 - x^2)^(1/2)

Move the x to the other side,

10 - x = (8^2 - x^2)^(1/2)

Take the square of both sides to get rid of the radical sign:

(10 - x)^2 = 8^2 - x^2

Move everything to the left and expand the quantity inside the parenthesis:

x^2 + (100 - 20x + x^2) - 64 = 0

2x^2 - 20x + 64 = 0

or

x^2 - 10x + 32 = 0

Now we can see that a = -10 and b = 32

6 0
2 years ago
Read 2 more answers
Can you write this equation in point-slope form?<br><br> y = ½x + 4?
Svet_ta [14]
Yes.  This equation given:
______________________________
   " y = (½)x + 4 " ;  in point-slope form; also known as: "slope-intercept form" ; is:
______________________________________
    " y = (½)x + 4 " .
______________________________________
In other words, the equation given is ALREADY written in "point-slope form" ; or, "slope-intercept form".
______________________________________
Note:   An equation that is written in "point-slope form"
             (or, "slope-intercept form"), is written in the format of:
______________________________________
" y = mx + b " ;_________________
in which:_________________
"y" is a single, "stand-alone" variable on the "left-hand side of the equation"; "m" is the coefficient of "x"; also:
"m" is the slope of the line; which is what we want to solve for;
"b" is the "y-intercept"; or more precisely, the value of "x"
(that is; the "x-coordinate") of the point at which "y = 0";
that is, the value of "x" ; or the "x-coordinate" of the point at which
the graph of the equation crosses the "x-axis".
______________________________________
Note that in our given equation, which is written in "point-slope form" (or, "slope-intercept form" — that is:  " y = mx + b "  ;
_______________________________________
which is:  " y = (½)x + 4 " ;
_______________________________________
we have:
_______________________________________
  "y" isolated as "stand-alone" variable on the "left-hand side" of the equation;

  m = ½ ;
  b =  4 .
_______________________________________

4 0
3 years ago
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