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Alona [7]
3 years ago
7

Which expression is equivalent to108--3? O 5/3) O 63 O 73i

Mathematics
1 answer:
Wewaii [24]3 years ago
4 0

Answer:

(A) option

Step-by-step explanation:

becoz according to me when I solved this sum then answer was 5√3

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Determine a quadratic equation, in standard form, that has the pair of root: x=-3, x=5
Mama L [17]

Answer:

x^2 -2x -15=0

Step-by-step explanation:

\text{Given that, the roots are,}~ \alpha=-3 ~ \text{and}~ \beta=5 .\\\\\text{The quadratic equation with roots}~ \alpha ~ \text{and}~ \beta ~ \text{is,}\\\\~~~~~~~~x^2 - (\alpha + \beta )x +\alpha \beta = 0\\\\\implies x^2-(-3 +5) x +(-3)(5) = 0\\\\\implies x^2 -2x -15=0

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2 years ago
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Gwar [14]

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2 years ago
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URGENT PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER ABC factory brought a pile of coal. If the factory burns 1500 kilogram
wolverine [178]

Solving a system of equations, we will see that there are 6000 kg of coal on the pile.

<h3>How many kilograms of coal are in the pile of coal?</h3>

Let's say that there are N kilograms of coal, and it is planned to burn it totally in D days, these are our variables.

We know that:

  • If the factory burns 1500 kilograms per day, it will finish burning the coal one day ahead of planned.
  • If it burns 1000 kilograms per day, it will take an additional day than planned.

Then we can write the system of equations:

(1500)*(D - 1) = N

(1000)*(D + 1) = N

Because N is already isolated in both sides, we can write this as:

(1500)*(D - 1) = N = (1000)*(D + 1)

Then we can solve for D:

(1500)*(D - 1) =  (1000)*(D + 1)

1500*D - 1500 = 1000*D + 1000

500*D = 2500

D = 2500/500 = 5

Now that we know the value of D, we can find N by replacing it in one of the two equations:

(1500)*(D - 1) = N

(1500)*(5 - 1) = N

(1500)*4= N = 6000

This means that there are 6000 kilograms of coal on the pile.

If you want to learn more about systems of equations:

brainly.com/question/13729904

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7 0
2 years ago
HELP PLEASEEEEEEEEEEEEEE!! 10 POINTS
zhannawk [14.2K]

Answer:(x+6)(x^2-9)

Step-by-step explanation:

6 0
3 years ago
A package of 6 pairs of insulated gloves costs 38.34. What is the unit price of the pairs of gloves?
devlian [24]

Answer:

6.39

Step-by-step explanation:

divide the total cost by the total amount of the item for the unit price:

38.34/6=6.39

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3 years ago
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