Answer:
X = 13.13 feet
Step-by-step explanation:
Let the distance between Lila and Mark be x.
Let the distance between Avery and lila be A= 20
Let the distance between Avery and Mark be B= 30
Angle x = 200-180=20°
To solve this question we will use the cosine formula which is
X² = A²+ B² -2ABcosx
X²= 20² + 30² -2(20)(30)cos20
X²=1300-1127.6
X²= 172.4
X= 13.13
Answer:
x^3+9x^2-3x^2-3
Step-by-step explanation:
You can use a various of methods but when you use the box method you multiply each separately.
Like you would multiply x² by x, 8x by x, -3 by x (thats the first row)
x² by 1, 8x by 1, -3 by 1 ( for the second row)
Then you get those final variables and combine like terms getting the answer above
Answer:
28. the second and third one
29. 687.50 dollars
Step-by-step explanation:
2.49(2) + 1.79(2) + 0.89(4) = 12.12 no
2.49(3) + 1.79(2) = 11.05 yes
2.49(2) + 1.79(3) + 0.89 = 11.24 yes
2.49(4) + 1.79 + 0.89 = 12.64 no
area = length times width
a = 6.25 times 5
a = 31.25 square feet
31.25(22) = 687.50
Answer:
31/7
11/7
67/9
Step-by-step explanation: