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VladimirAG [237]
3 years ago
9

Find the area of the circle. Round your answer to the nearest hundredth. diameter=3 in

Mathematics
1 answer:
NARA [144]3 years ago
5 0

Answer:

7.065 if pi is 3.14

Please list as brainlist so I can level up (I have pts but little brainlists)

Hope this helps

Step-by-step explanation:

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What is the surface area?
Orlov [11]

Answer:

20.49 maybe?

Step-by-step explanation:

6 0
2 years ago
Is 4x^ -3 - 4x + 6 nonlinear or linear
Sedbober [7]

Answer:

non linear

Step-by-step explanation:

because it isn't solved yet. x needs its value to continue.

4 0
3 years ago
a construction company charges $15 per hour for debris removal , plus a one -time fee for the use of the trash dumpster.the tota
ser-zykov [4K]

Let h be the numbers of hours, f be the one-time fee and c the cost charged. The equation is

c=15h+f

Since you pay $15 per four, plus the fee. We can solve this equation for the fee:

f=c-15h

If we plug c=195 and h=9, we have

f=195-15\cdot 9=195-135=60

6 0
3 years ago
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:

8 0
3 years ago
Factor completely 3x − 12.<br><br> 3(x − 4)<br><br> 3(x + 4)<br><br> 3x(−12)<br><br> Prime
garri49 [273]
3x - 12
3(3x/3 - 12/3)
3(x - 4)

The answer is: 3(x - 4).
6 0
3 years ago
Read 2 more answers
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