Answer:
E. V=225 cm^3.
Step-by-step explanation:
What you do is you use the formula for the volume of a pyramid which is V=lwh/3.
The length is 9 cm.
The width is 5 cm (but remember you have two.)
The height is 3 cm.
<em>V=9*5*5*3/3</em>
<em>V=675/3</em>
<em>V=225 cm^3. Is your answer. </em>
Add the 3 ratio portions together: 1 + 4 + 7 = 12
Divide total length by 12:
84/12 = 7
Multiply each ratio portion by 7:
1 x 7 = 7
4 x 7 = 28
7 x 7 = 49
The longest piece is 49 cm
Answer:
C. 2d+3=12
Step-by-step explanation:
So if you wrote it right, it’s gonna be
8a^2b - 16b
8b(a^2-2)
Time taken to reach Tamara
Time taken to reach Northvile
<u>Difference in time</u>
Time taken to reach Tamara <em>minus</em> time taken to reach Northvile
We expand brackets to obtain,
Regroup like terms on the right side of the equation to get;
We simplify to obtain,
Hence the difference in length of travel time is minutes.