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ANEK [815]
3 years ago
13

SOLVE each system by graphing PLEASSE

Mathematics
1 answer:
dexar [7]3 years ago
8 0

Answer:


Step-by-step explanation:

The given equations are:

y=-\frac{1}{3}x+3 and y=2x-4

On solving y=-\frac{1}{3}x+3 , we get the graph which is red in colour.

By Putting x=o in the equation⇒y=3

Putting x=-3⇒y=4

Now, plotting the graph for the equation y=2x-4, it is plotted as blue colour by putting x=0⇒y=-4 and by putting x=3⇒y=2, Following the same path, we can plot the two graphs for the given equations.

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If 800g of a radioactive substance are present initially and 8 years later only 450g remain, how much of the substance will be p
artcher [175]

A=Pe^(rt)

P = 800g

t = 8 years

A = 450g

r = This is what we will try and find to start with

450=800e^(r*8)

After running the math through a calculator, we end with r = -0.07192

Now we just re-input this information into our equation: A=800e^(-0.07192*16)

A=800e^(1.15072)

Now we will re-write the equation using the negative exponent rule:

A = 800 1/e^1.15072

Combine right side:

A = 800/e^1.15072

Then do the math:

A = 253.12709836......

That will give us A = 253 (rounded to the whole number)

I hope this helps! :)

5 0
3 years ago
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Serga [27]
(5 * sqrt(x^7))^3

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So we get (5*x^6 )^3

5*3 is 25, 6*3 is 18 (and exponent to an exponent multiplies)

Therefore the answer is 25x^18
7 0
3 years ago
Please solve this thank you :)
snow_lady [41]

Answer:

Scale= 3 x=9 y=15

Step-by-step explanation:

8 0
3 years ago
Which of the following ordered pairs represents a function? PLEASE HELP​
LuckyWell [14K]

Answer:

im  not that sure but i thinks its A or B

Step-by-step explanation:

3 0
4 years ago
What are the factors of the polynomial a^2 + a - 2? Select all that apply.
forsale [732]

Answer:

<h2>A) a - 1 and B) a + 2</h2>

Step-by-step explanation:

a^2+a-2=a^2+2a-a-2=a(a+2)-1(a+2)=(a+2)(a-1)

5 0
3 years ago
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