Answer:
33.94 cms of ribbon
Step-by-step explanation:
Because you need two diagonals to form the x, therefore the amount of ribbon needed is the sum of the distance of both diagonals.
When crossing the diagonal, a rectangular angle is formed, where the diagonal would be the hypotenuse, we know that the distance of the hypotenuse can be calculated by means of the legs, which we know its value (12):
d ^ 2 = a ^ 2 + b ^ 2
a = b = 12
d ^ 2 = 12 ^ 2 + 12 ^ 2
d ^ 2 = 288
d = 288 ^ (1/2)
d = 16.97
16.97 cm is what it measures, a diagonal, therefore tape is needed:
16.97 * 2 = 33.94
A total of 33.94 cms of ribbon is needed
ANSWER ………………….____________
A. 0.02 0.2 2 20 200 2000
b. 3,400,000 , 34,000 , 340 ,3.4, 0.034
c. 85700 8,570 857 85.7 8.57 0.857
d. 444 4440 44,400 444,000 4,440,000 44,400,000
e. 0.095 9.5 950 95,000 9,500,000 950,000,000
Answer:
Jason reasoning is incorrect
Jason should have calculated the perimeter of the room instead of calculating the area
Step-by-step explanation:
we know that
The perimeter of the rectangular bedroom is equal to
where
substitute
we have that
so
Jason has enough border for the whole job
therefore
Jason reasoning is incorrect
Jason should have calculated the perimeter of the room instead of calculating the area
1st day = 1/12
2nd day = 2/12
3rd day = 3/12
4th day = 4/12
5th day = 5/12
6th day would be = 6/12
If it continues in that order, the sum of the walks would total 1 mile when:
They all add up to 12/12
Add = 1/12 + 2/12 + 3/12 + 4/12 = 10/12
That is still not up to 12/12
So we add up the 5th day also = 10/12 + 5/12 = 15/12 = 1 3/12 miles
So on the 5th day the sum of his walks total at least 1 completed mile.
At least 1 means 1 and above. As you can see the answer we got 1 3/12 is already more than 1.
