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Over [174]
3 years ago
9

Expand and simplify(3x+2)^2-(2x-1)^2

Mathematics
1 answer:
MAXImum [283]3 years ago
8 0
If you would like to calculate (3 * x + 2)^2 - (2 * x - 1)^2, you can do this using the following steps:

(3 * x + 2)^2 - (2 * x - 1)^2 =
9 * x^2 + 12 * x + 4 - (4 * x^2 - 4 * x + 1) =
9 * x^2 + 12 * x + 4 - 4 * x^2 + 4 * x - 1 = 
5 * x^2 + 16 * x + 3

The result is 5 * x^2 + 16 * x + 3.
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F(x)= (x - 6)(x + 2)?<br> What is the vertex of the quadratic function
Mars2501 [29]

Answer:

With this form, we can tell that the x intercepts are x=6 and x=-2. So the x coordinate of the vertex is 2

Step-by-step explanation:

6 0
3 years ago
Assume Cylinder A and Cone B are the same height and the bases have the same radius. If A has a volume of 18π cm3, what is the v
disa [49]

Answer:

Option A  V_B=19\ cm^3

Step-by-step explanation:

The volume of a cone is:

V_B = \pi\frac{hr ^ 2}{3}

The volume of a cylinder is:

V_A = \pi(r ^ 2)h

Both figures have the same height h and the same radius r.

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We want to find the volume of the cone.

Then, we find r and h:

V_A = 18\pi = \pi(r ^ 2)h

We simplify.

V_A = 18 = (r ^ 2)h

Then the product of (r ^ 2)h = 18.

We substitute this in the cone formula and get:

V_B =\frac{\pi}{3}(18)\\\\V_B = \frac{18}{3}\pi\\\\V_B=19\ cm^3

8 0
3 years ago
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The total distance an object travels varies directly with the length of time it travels. If an object travels 24 meters in 9 sec
NeX [460]

24 / 96 = 9/x  

x = 9. 96/24 = 36

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3 years ago
Need help with math problem if do 5 stars
Novosadov [1.4K]
Here it is I hope this is what u needed

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Step-by-step explanation:

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