7=3x-5
12=3x
4=x
Hope this helps
Answer:
10c^3 -30c^2 + 10c -30
Step-by-step explanation:
2c(5c^2+5) - 6(5c^2+5)
= 10c^3 + 10c - 30c^2 - 30
= 10c^3 -30c^2 + 10c -30
Answer:
The diameter of the pond is 38 m.
The radius of the pond is 19 m.
The area of the pond is 361 m^2.
Step-by-step explanation:
We know that the circumference C of a circle is equal to

In this case, C is equal to 120 m.
The diameter is then:

Rounded to the nearest whole number, the diameter is D=38 metres.
The radius is equal to half the diameter, so the radius of this pond is R=19 metres.

The area can be calculated from the radius as:

The area is 361 m^2
Answer:
502
Step-by-step explanation:
504-10=494
494+6=500
500+2=502
answer 502
Answer: 2 1/3
Step-by-step explanation:
Hi, I got my answer by making 3 groups and splitting 7 into them. When you get 1 left over, you separate it into 3, so everyone gets 1/3 of a piece. Therefore the answer is 2 1/3. :)