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Bogdan [553]
4 years ago
12

The EPA standard for safe drinking water is a maximum of 1.3 milligrams of copper per liter of water. A water testing firm found

8.3 milligrams of copper in a 5-liter sample drawn from Jim and Sharon LeBlanc's
house. Is the water safe or not? By how much does the amount of copper exceed or fall short of the maximum allowed?

Is the water safe for drinking?

No
Yes
Mathematics
1 answer:
AnnyKZ [126]4 years ago
3 0
I think the answer is no
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I need help with finding intersecting lines for x+y=4 and x-y= -2
Naya [18.7K]
The answer to your question is (1,3) because I graphed it that is where they intersected at. I hope this helps. 
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Given the lines a and b are parallel and that m 2= 68, find m 5.
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3 years ago
What is the equation of the lines -6,-4 &amp; 4,6
Jet001 [13]
1. use the equation y -y1 = m(x-x1)
2. (-6,-4) is x1,y1 and (4,-6) is x2,y2
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6 0
3 years ago
A town recreation hall needs to build a ramp. The height of the ramp must be 2 ft. The ramp will start 6 ft from the door. To th
zimovet [89]

Answer:

6.32 feets

Step-by-step explanation:

Given that:

Height of ramp = 2 feets

Length of base = 6 feets

Length of ramp = l

Using Pythagoras rule :

Hypotenus = sqrt(opposite² + adjacent²)

Length of ramp = sqrt(height of ramp² + length of base²)

l = sqrt(2² + 6²)

l = sqrt(4 + 36)

l = sqrt(40)

l = 6.3245

Length of ramp = 6.32 feets

3 0
3 years ago
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