Indirect.
Real-life example: A jury begins with the assumption that the defendant is not guilty. Evidence is introduced that contradicts that assumption.
Answer:
0.375 feet-lb
Step-by-step explanation:
We have been given that the work required to stretch a spring 2 ft beyond its natural length is 6 ft-lb. We are asked to find the work needed to stretch the spring 6 in. beyond its natural length.
We can represent our given information as:
We will use Hooke's Law to solve our given problem.
Substituting this value in our integral, we will get:
Using power rule, we will get:
We know that 6 inches is equal to 0.5 feet.
Work needed to stretch it beyond 6 inches beyond its natural length would be
Using power rule, we will get:
Therefore, 0.375 feet-lb work is needed to stretch it 6 in. beyond its natural length.
change to improper fractions
8 1/2 = (2*8+1)/2 = 17/2
2 1/4 = (4*2+1)/4 = 9/4
17/2 divided by 9/4
copy dot flip
17/2 *4/9
17/9 *4/2
34/9
change back to a mixed number
3 remainder 7
3 7/9
Answer:
Number of sweets =54
Step-by-step explanation:
Let number of friends = x
Number of sweets = y
Glenda gives 6 to each of her friend,
6x = y ----------------(I)
If she gives each of them 4, 18 is left
4x + 18 = y ---------------(II)
From (I)& (II)
6x = 4x + 18
Subtract 4x from both sides
6x - 4x = 4x + 18 - 4x
2x = 18
Divide both sides by 2
2x/2 = 18/2
x = 9
y = 6x
= 6 * 9
y = 54
Number of sweets =54
If it is 2.25 yards per dress, and 4.15 a yard, multiply 2.25 by 4.15 and you get 9.3375 or just 9.34. if there are 4 girls, multiply 9.34 by 4 and you get $39.76