15% of 40...
15% in decimal form is 0.15...
0.15(40)= 6
your answer is 6.
2W + 2L = 820
<span>LW = 42,000 or L = 42,000/W </span>
<span>substitute second equation into first equation: </span>
<span>2W + 2(42,000/W) = 820 </span>
<span>2W + 84,000/W = 820 </span>
<span>2W^2/W + 84,000/W = 820W/W </span>
<span>2W^2 - 820W + 84,000 = 0 </span>
<span>quadratic formula: </span>
<span>W = [820 +/- SQR(672,400 - 4(2)(84,000))]/2(2) </span>
<span>W = [820 +/- 20]/4 </span>
<span>W = 200, 210 </span>
<span>using second equation: </span>
<span>L = 42,000/200, 42,000/210 = 210, 200 </span>
<span>The dimensions of the parking lot are 200ft by 210ft.</span>
The answer is the 3rd option because 9^2+12^2=225
The sq. rt. of 225=15
So, the 3rd option demonstrates the Pythagorean theorem
Answer:
a.
5.4 cm; 133 degrees
Step-by-step explanation:
hope this helps
700 x .3 = 210
700 + 210 = 910
