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Stella [2.4K]
3 years ago
9

Factor the expression.

Mathematics
2 answers:
amid [387]3 years ago
6 0

Answer:15n - 18 = 3(5n -6)

Step-by-step explanation:

bija089 [108]3 years ago
3 0
15n - 18 = 3(5n -6)
I suppose that's all...
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laila [671]
The answer is B all angles are right angles.
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4 years ago
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Find the vertex and axis of symmetry for f(x)=2x^2-1
vfiekz [6]
<h3>Axis of symmetry is 0 and vertex is (0, -1)</h3>

<em><u>Solution:</u></em>

<em><u>Given is:</u></em>

f(x) = 2x^2 - 1

We have to find the vertex and axis of symmetry

<em><u>The general equation is given as:</u></em>

f(x) = ax^2 + bx + c

Comparing with given equation,

a = 2

b = 0

c = -1

<em><u>The axis of symmetry is given as:</u></em>

x = \frac{-b}{2a}

x = \frac{0}{2(2)}\\\\x = 0

Thus axis of symmetry is 0

The x coordinate of the vertex is the same

x coordinate of the vertex = 0

h = 0

The y coordinate of the vertex is:

k = f(h)

k = f(0)

f(0) = 2(0) - 1\\\\f(0) = 0 - 1\\\\f(0) = -1

Thus, y coordinate of the vertex is -1

Therefore, vertex is (0, -1)

3 0
3 years ago
Find the percent of increase:<br> Year 2005 2010<br> Population 3.2<br><br> (millions) 5.6
hjlf

Answer:

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Step-by-step explanation:

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3 years ago
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Find how many piranhas you can put in a cylindrical tank
mr Goodwill [35]

Answer: The correct answer is 10 piranhas.

Step-by-step explanation:

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Volume = Area * Height

Area = π * r²  , where r= radius

The diameter is always the twice the radius so the diameter is 4 feet in this case and the radius is 2 feet  so the area is

Area= 3.1416 * (2*2)

Area = 3.1416 * 4

Area = 12.5664 square feet

Volume = 12.5664 (area) * 1.25 (height).

Volume = 15.708 cubic feet

Each piranha needs 1.5 cubic feet so we have to divide the total Volume by the volume that each piranha needs

15.708/ 1.5 = 10.472 or ten pirahnas because we can't put a fraction of a piranha in the tank.

7 0
4 years ago
Tina is ordering pizza for a party.Peats pizza is offering a special of 4 pizza for $26. Pizza palace is selling 10 pizza for $7
Lana71 [14]

Answer:

Peat's Pizza is is the one Tina should order from.

Step-by-step explanation:

If 4-pizzas from Peat's Pizza is 26 dollars, and she wants to order the 4 pizza special, Multiply 26 and 10 to get $260. Now if she wanted to order 4 times from Pizza Palace, which costs 75 dollars for 10 pizzas, Multiply the cost, 75, and the amount of times you want to order, to get the total cost. (Please tell me if I'm wrong! I'm trying to identify what I can.)

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