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Ratling [72]
3 years ago
15

Whats the answer how do you simplify this

Mathematics
1 answer:
Margarita [4]3 years ago
7 0
A^(-b) =  1 / (a^b), so

5^(-3) =  1 / (5^3)  = 1 / 125 = 0.008
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Lin’s job pays $8.25 an hour plus $10 of transportation allowance each week. She has to work at least 5 hours a week to keep the
devlian [24]

Answer:

x ≥ 5, 8.25x + 10 = 175, and x = 20 hours.

Step-by-step explanation:

Let Lin works x hours per week.

Now given that Lin’s job pays $8.25 an hour plus $10 of transportation allowance each week.

And she has to work at least 5 hours a week to $175 per week.

So, the inequality that can be written from the above condition is x ≥ 5 .......(1)

And the equation that can be written that

8.25x + 10 = 175 ....... (2)

So now we can write x = 20 hours

Hope this was helpful :)

3 0
3 years ago
A population of endangered salmon, S(t), starts out with 40 fish and decreases proportionally at a rate of 0.01 fish per year. L
I am Lyosha [343]

The particular solution to the differential equation which describes the number of fish over time will be y = 40(0.99)^t.

<h3>What is an exponent?</h3>

Consider the function:

y = a (1 ± r) ˣ

Where x is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.

If there is a plus sign, then there is exponential growth happening by r fraction or 100r %

If there is a minus sign, then there is exponential decay happening by r fraction or 100r %

A population of endangered salmon, S(t), starts out with 40 fish and decreases proportionally at a rate of 0.01 fish per year. Let t be measured in years.

Let y be the number of fish over time (t).

Then we have

\rm y = 40(1 - 0.01)^t\\\\y = 40(0.99)^t

Then the particular solution to the differential equation which describes the number of fish over time will be y = 40(0.99)^t.

More about the exponent link is given below.

brainly.com/question/5497425

#SPH1

6 0
2 years ago
Factorise 12x cubed - 9x squared
TiliK225 [7]

Answer:

3x²(4x-3)

Step by step explanation:

Factorise 12x³-9x²

first, find the HCF of the terms.

the HCF is 3x²

Then you can use the HCF to multiply all terms, each divided by the HCF.

3x²(12x³/3x²-9x²/3x²)

Dividing, we'll have

3x²(4x-3)

6 0
3 years ago
What would the output be?
ladessa [460]

Answer:

It would be 40

Step-by-step explanation:


8 0
4 years ago
Given the line y =2/3x-3
enyata [817]

Answer:

y= -3/2x + 5

Step-by-step explanation:

You do the opposite reciprocal of the original equation's slope.

Then you use the new slope from the point (4,-1) on the graph to find the y-intercept. Which is (0,5).

That gets your answer of -3/2x + 5.

4 0
3 years ago
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