The answer is: "
122.65625 cm² " ; or, write as: "
122 cm² " .
________________________________________________________Note: ________________________________________________________The area, "A", of a circle:
A =
* r² ;
in which: A = area of the circle;
= 3.14 ;
r = radius ;
To calculate radius, "r" = diameter/2 = 12.5 cm/2 = 6.25 cm .
r = 6.25 cm ;
So, to calculate the area, "A" of the circle:
A =
* r² ;
Plug in the values to find the Area, "A" of the circle:
A = 3.14 * (6.25 cm)² ;
A = 3.14 * (6.25)² * cm² ;
A = 3.14 * 39.0625 * cm² ; Note that "39.0625" = "
" .
A =
122.65625 cm² ; or, write as: "
122 cm² " .
___________________________________________________________
Answer:
52
Step-by-step explanation:
NOT SURE PLEASE TELL ME IF IM WRONG
Answer:
y = (1/3)x +4
Step-by-step explanation:
The line intercepts the y-axis at y=4. It has a "rise" of 1 unit for each "run" of 3 units, so its slope is rise/run = 1/3.
The slope-intercept form of the equation of a line is ...
y = mx + b . . . . . where m is the slope and b is the y-intercept.
When we put the proper numbers in the equation, we have ...
y = (1/3)x + 4
Answer:
16
Step-by-step explanation:
45 +25+25+10+10+19=134 so 150-135=16
Answer:
x=11, y=2
Step-by-step explanation:
We can set 1 equal to x-5y and then solve for x. and y.
x = 5y+1
y = x-1/5
We can use this information and plug back in the values for 3y-x or x-5y.
We can set -3 = 3y-x or 1 = x-5y.
To solve for x using -3 = 3y-x we can swap the values of x and y which would make it -3 = 3(x-1/5)-5(x-1/5)+1.
We can do a bit of algebra which would get us x = 11.
Knowing that y = x-1/5 we can plug in 11 for x. y = 11-1/5.
y=2
x=11, y=2