Answer:
2.968
Step-by-step explanation:All you have to do is subtract 11.033 from 8.065 which gives you 2.968.And since the first number is higher than the second number, the change is positive.
Answer: ∠ACB= 60°, ∠DCE= 65°, ∠BCD= 55°
Step-by-step explanation:
1) Since ΔABC is an equilateral, we know ∠ACB= 60°
2) Since we know ΔCDE is an isosceles, we know that ∠DCE= 1/2 (180-50), which is 65°
3) We can add the 2 angles and then subtract them from 180 degrees to get ∠BCD= 55°
2 and 3 are both 58 as well. For 4 do 180-58 because a straight line is 180 degrees.
We are given with the cost of concrete equal to $98 per cubic yard. Paul needs is $108.89. Hence the cubic yard is equal to $108.89/ $98 per cubic yard or 1.1111 cubic yards. 1.1111 cubic yards is equal to 30.0024 cubic feet. From the given, 12 feet long length and 0.5 feet height, we get the width equal to 30.0024 cubic feet/1<span>2 feet/0.5 feet or 5 feet. The width needed is 5 feet.</span>