Well first you must find what 71/2 is equal to:
71 / 2 = 35.5
Now you should convert this to a decimal instead of a percent. All you have to do is move the decimal two places to the left when going from percent to decimal:
35.5% = .355
Now that you know the decimal value, you want to know what number is 12 35.5% of. To do this, think, if you were wondering what is 10% of 100, you would multiply 100 by .10 so in this case since you are going the opposite way, you would divide 12 by .335, which gives you:
35.8208955224
This can be approximated to:
≈35.82
Answer:
10*9+9*3-2=115
Step-by-step explanation:
it may help you to understand
Answer:
circumference of the plate
Step-by-step explanation:
Answer:
Centre = (2, -3)
radius = 5units
Step-by-step explanation:
The standard form of a circle is expressed as;
x²+y²+2gx+2fy+c = 0
Centre = (-g, -f)
radius r = √g²+f²-c
Given the equation;
x²+y²-4x+6y-12 = 0
Compare
2gx = -4x
2g = -4
g = -2
Similarly;
2fy = 6y
2f = 6
f = 3
Centre = (-(-2), -3)
Centre = (2, -3)
Radius = r = √(-2)²+3²+12
r = √4+9+12
r = √25
r = 5 units
Answer: 107 degrees.
Step-by-step explanation:
A quadrilateral is defined as a 2-dimensional closed shape which has four sides and four vertices.
By definition the interior angles of a quadrilateral add up 360 degrees.
We know that this quadrilateral has 2 right angles (which are angles that measure 90 degrees) and we know that the measure of the third angle is 73 degrees.
Let be "x" the measure of the fourth angle.
Then you can write this expression:
![360\°=90\°+90\°+73\°+x](https://tex.z-dn.net/?f=360%5C%C2%B0%3D90%5C%C2%B0%2B90%5C%C2%B0%2B73%5C%C2%B0%2Bx)
And finally solve for "x":
![360\°=253\°+x](https://tex.z-dn.net/?f=360%5C%C2%B0%3D253%5C%C2%B0%2Bx)
![360\°-253\°=x](https://tex.z-dn.net/?f=360%5C%C2%B0-253%5C%C2%B0%3Dx)
![x=107\°](https://tex.z-dn.net/?f=x%3D107%5C%C2%B0)