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hodyreva [135]
3 years ago
15

Evaluate the expression when n=3 60n(2 - n) = ?

Mathematics
1 answer:
alina1380 [7]3 years ago
3 0
The answer is -180..
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Solve the equation using the quadratic formula
amm1812

Answer:

Step-by-step explanation:

Rewrite this quadratic equation in standard form:  2n^2 + 3n + 54 = 0.  Identify the coefficients of the n terms:  they are 2, 3, 54.

Find the discriminant b^2 - 4ac:  It is 3^2 - 4(2)(54), or -423.  The negative sign tells us that this quadratic has two unequal, complex roots, which are:

     -(3) ± i√423        -3 ± i√423

n = ------------------- = ------------------

             2(2)                      4

3 0
3 years ago
5^2(7) <br> Pls solve I am stuck
AfilCa [17]

Answer:

5^{2}(7) = 175

Step-by-step explanation:

hope this helps! just follow the order of operations. :)

3 0
3 years ago
Find three consecutive integers whose sum is equal to −354. Three consecutive integers in ascending form are __,__,__
mixer [17]

Answer: -119, -120, and -121

Step-by-step explanation: This problem states that the sum of three consecutive integers is -354 and it asks us to find the integers. Three consecutive integers can be represented as followed.

X ⇒ <em>first integer</em>

X + 1 ⇒ <em>second integer</em>

X + 2 ⇒<em> third integer</em>

<em />

Since the sum of our three consecutive integers is -354, we can set up an equation to represent this.

X + X + 1 + X + 2 = -354

Now, we can simplify on the left side of the equation.

3x + 3 = -354

      -3      -3    ← subtract 3 on both sides of the equation

3x = -357

÷3     ÷3     ← divide both sides by 3

X = -119

X ⇒ <em>first integer = </em><em>-119</em>

X + 1 ⇒ <em>second integer = </em><em>-120</em>

X + 2 ⇒<em> third integer = </em><em>-121</em>

<em />

Therefore, our three consecutive integers are -119, -120, and -121.

6 0
3 years ago
Read 2 more answers
The area of the face of a cube is 9 square meters. what is the volume of the cuber
Helga [31]

Answer:

<h2>V = 27m³</h2>

Step-by-step explanation:

We know: All faces of a cube are squares.

The formula of an area of a square with a side <em>s</em>:

<em>A = s²</em>

We have <em>A = 9m²</em>

Substitute:

<em>s² = 9 → s = √9 = 3 m</em>.

The formula of a volume of a cube with an edge <em>s</em>:

<em>V = s³</em>

Substitute:

<em>V = 3³ = 27 m³</em>

6 0
3 years ago
What is the expanded form of 709.104
andreev551 [17]
700 + 9 + .1 + .04

Hope this helps that the answer
5 0
3 years ago
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