<em>12</em>
<em>Step by Step, Following the rules of Pemdas</em>
<em>22 - (3.1 + 4.4) + 2.5</em>
<em>22 - 7.5 + 2.5</em>
<em>22 - 10</em>
<em>12</em>
<em />
<em>-Ɽ3₮Ɽ0 Ⱬ3Ɽ0
</em>
<em>
</em>
<em />
Answer:
Diameter = 19.33
Step-by-step explanation:
Imaging a radius line from O to the endpoints of the 7. call this line R.
Label the part of the vertical line from O to the 90 degree intersection y.
Now you have a right triangle.
Using the Pythagorean theorem:
R² = 7² + y²
also
y = R - 3
substitute for y:
R² = 49 + (R-3)²
R² = 49 + R² - 6R + 9
simplify:
0 = 58 - 6R
6R = 58
R = 9.6667
Diameter = 2(9.6667) = 19.33
Answer:
13cm
Step-by-step explanation:
substitute values we have into the formula:
1664 = 16 x w x 8
rearrange:
1664/16×8 = w
which equals 13