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VashaNatasha [74]
3 years ago
7

A spill of two gallons of methane occurs in the men's room. Methane has a half life of seven years. How much remains in 20 years

Mathematics
2 answers:
arlik [135]3 years ago
5 0
I think the answer is None because half life of seven years means it's full life is 14 years and after 20 years there would not be any left 

r-ruslan [8.4K]3 years ago
3 0

I think it may be a quarter of it left


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7th grade math problem! Please help!
ANTONII [103]

Volume of the hexagonal prism = 1732.7772 ft³

Solution:

Height of the prism (H) = 15.4 ft

Side of the hexagon base (b) = 6.58 ft

Height from center to the side length (h) = 5.7 ft.

Let us first find the area of the base.

Area of the base (B) =  6\times\frac{1}{2}\  bh

                                 $=6\times\frac{1}{2}\times 6.58 \times 5.7

Area of the base (B) = 112.518 ft²

To find the volume of the hexagonal prism:

Volume of the hexagonal prism = Area of the base × Height

                                                     = 112.518 × 15.4

                                                     = 1732.7772 ft³

The volume of the hexagonal prism is about 1732.7772 ft³.

3 0
3 years ago
Let f(x)=3x^2-x+2 and g(x)= 5x^2-1. find f(g(x))
LenKa [72]
F (5x^2 - 1) = 75x^4 - 35x^2 + 6
3 0
4 years ago
Read 2 more answers
Will give, Branliest.​
Vlad [161]

Answer:

24

Step-by-step explanation:

x * 5 - 17 = 103

x * 5 = 120

x = 24

4 0
3 years ago
Read 2 more answers
Need help with these two questions please
lisabon 2012 [21]
You can figure out the answer by doing this:

8% = 2300/x 

and do the same for the second one
(and solve)
4 0
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Find the set of values of k for which the equation 2x2 - 10x + 8 = kx has no real root
Masja [62]

Answer: k= -10x+12

Step-by-step explanation:

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3 years ago
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