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katen-ka-za [31]
2 years ago
14

What is 2 divided by 9/10 ​

Mathematics
1 answer:
Phoenix [80]2 years ago
8 0

Answer:

20/9

Step-by-step explanation:

2/(9/10)=(2/1)(10/9)=20/9

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Percent increase : (new number - original number) / (original number)....then multiply that by 100 to get ur percent.

(5.98 - 4.6) / (4.6) = 1.38/4.6 = 0.3......0.3 x 100 = 30% <==
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The diagonals of a square are _____. A. Sometimes equal B. Never congruent C. Parallel D. Perpendicular
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A (not necessarily convex) 11-sided polygon can have at most how many right interior
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Consider the equation 5x^2-10x+c=0. What values of c result in the equation having a complex solutions? Represent your answer on
stiv31 [10]

Answer:

When we have a quadratic equation:

a*x^2 + b*x + c = 0

There is something called the determinant, and this is:

D = b^2 - 4*a*c

If D < 0, then the we will have complex solutions.

In our case, we have

5*x^2 - 10*x + c = 0

Then the determinant is:

D = (-10)^2 - 4*5*c = 100 - 4*5*c

And we want this to be smaller than zero, then let's find the value of c such that the determinant is exactly zero:

D = 0 = 100 - 4*5*c

    4*5*c = 100  

       20*c = 100

            c = 100/20 = 5

As c is multiplicating the negative term in the equation, if c increases, then we will have that D < 0.

This means that c must be larger than 5 if we want to have complex solutions,

c > 5.

I can not represent this in your number line, but this would be represented with a white dot in the five, that extends infinitely to the right, something like the image below:

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3 years ago
Estimate the product of 86 and 492
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86 × 492 = about 42,000
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