Answer:
1. x+4x
2. 5x
3. 
4. 4x-2x+15
5. 
Step-by-step explanation:
To write expressions remember these key words:
- a number is a variable like x
- sum is +
- difference and subtracted is -
- quotient is ÷
- product is ×
- reciprocal means flip like
- square is an exponent of 2 like
1. x+4x
2. 5x
3.
Remember a quotient would be 
but the reciprocal is 
.
4. 4x-2x+15
5.
I think the answer is D and the reason why is because the picture shows
Answer:
732π cm^3
Step-by-step explanation:
Volume of the biggest cone
(15^2 * π *20)/3 = 1500π cm^3
Volume of the smallest cone
20^3 : 16^3= 1500π : x
x = (1500π * 4096)/8000= 768π cm^3
Volume of the frustum = 1500π - 768π = 732π cm^3
Answer: 2.29 x 10^4
Step-by-step explanation:
