Answer:
19d + 11
Step-by-step explanation:
7(d + 2) - 3 (1- 4d)
Expand the brackets.
7d + 14 - 3 + 12d
Add or subtract like terms.
7d + 12d + 14 - 3
19d + 11
Answer:
Option B (16 cm³)
Step-by-step explanation:
<u>GIVEN :-</u>
- Both cone and cylinder have same radius and height.
- Volume of cylinder = 48 cm³
<u>TO FIND :-</u>
<u>FACTS TO KNOW BEFORE SOLVING :-</u>
- Volume of a cylinder having radius 'r' and height 'h' is

- Volume of a cone having radius 'r' and height 'h' is

Hence ,
Volume of cylinder = Thrice the volume of cone
[OR]
Volume of cone = One third of volume of cylinder
<u>PROCEDURE :-</u>
Volume of cone = 
Answer:
B. 
Step-by-step explanation:
![\displaystyle x^2 = -8x - 7 → x^2 + 8x + 7 \\ \\ x^2 + 8x + 7 \\ [x + 1][x + 7]; -1, -7 = x](https://tex.z-dn.net/?f=%5Cdisplaystyle%20x%5E2%20%3D%20-8x%20-%207%20%E2%86%92%20x%5E2%20%2B%208x%20%2B%207%20%5C%5C%20%5C%5C%20x%5E2%20%2B%208x%20%2B%207%20%5C%5C%20%5Bx%20%2B%201%5D%5Bx%20%2B%207%5D%3B%20-1%2C%20-7%20%3D%20x)
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Answer:
180
Step-by-step explanation: