Answer:
13 seconds.
Step-by-step explanation:
Given
Required
Determine a reasonable solution for t
To do this, we equate h to 0.
becomes
Divide through by -4.9
Reorder the expression
Split
or 
This gives:
or 
But time can't be negative, So:
-5 is the same as -5/1
Flip the fraction:
-1/5
2/9 / 1/4
Flip the 2nd fraction and multiply:
2/9 * 4/1
Multiply the numerators and denominators:
8/9
Let y = the length of the 3rd side
x+3 + 2x+4 + y = 6x
x + 2x + 3 + 4 + y = 6x
3x + 7 +y = 6x
7 + y = 3x
y = 3x - 7
The length of the third side in terms of x is 3x-7
5x = 2x + 9, where 5x > 0 and 2x + 9 > 0 ;
Then, 3x = 9 ;
Then, x = 3 ;
Verify : 5 × 3 = 2 × 3 + 9 ;correct !
5 × 3 > 0 ; correct !
2 × 3 + 9 > 0; correct !
Answer:
D
Step-by-step explanation:
three meters is 118.11 inches, so if you were to round that you would get 120 inches. That means the answer is D.
