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Anastasy [175]
3 years ago
8

I need help with number 3 and 4. Please

Mathematics
1 answer:
noname [10]3 years ago
6 0

For #3 the slop is 4/3 .

The y intercept is -5.

So the equation is

y=4/3x -5

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When a water-cooled nuclear power plant is in operation, oxygen in the water is transmuted to nitrogen-17. After the reactor is
wolverine [178]

Answer:

The differential equation is \frac{dR}{dt} = -kR

Step-by-step explanation:

Differential equation for the rate of change in radiation level:

Radiation level is R.

Rate of change indicates that the radiation level R varies in function of time t, which mathematically means that we have:

\frac{dR}{dt}

After the reactor is shut down, the radiation from the nitrogen-17 decreases in such a way that the rate of change in the radiation level is directly proportional to the radiation level.

Rate of change is k. Decreases means that k is negative. Proportional to the radiation level of R means that -k multiplies R. So the differential equation is:

\frac{dR}{dt} = -kR

7 0
3 years ago
4 x 4/12=<br> Sheeeeeeeeeeeeeeeesh
Crazy boy [7]

Answer:

1.3 or \frac{13}{10}

Hope this helps!

6 0
3 years ago
Read 2 more answers
Sorry i have another question what is the inequality of 8x−8≤−72.
vova2212 [387]

That answer is x≤−8


Inequality:

8x−8≤−72


Step number  1:  You have to Add 8 to both sides.

8x−8+8≤−72+8

8x≤−64



Step number 2: You have to Divide both sides by 8.

8x /8  ≤  −64 / 8


Ur Answer:

x≤−8


Hope this helps :)


7 0
3 years ago
Read 2 more answers
At the market, 7 apples cost $4.55. How much do 9 apples cost?
Dvinal [7]
7 apples = 4.55
To find the single cost of an apple, divide 4.55 by 7
4.55/7 = 0.65 per apple
Let's check to see if this is right.
0.65 x 7 = 4.55 = correct
0.65 x 9 = $5.85 for 9 apples

6 0
3 years ago
Read 2 more answers
A new business has total sales of $10,000, applied $1,000 in merchandise discounts, and had returns of $100. Calculate the busin
devlian [24]
10,000-1,000=9,000 -100
8,900,i think maybe
5 0
3 years ago
Read 2 more answers
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