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tiny-mole [99]
3 years ago
8

Expand and simplify (4x+1)(x+3)

Mathematics
2 answers:
Allisa [31]3 years ago
8 0
<span><span>(<span><span>4x</span>+1</span>)</span><span>(<span>x+3</span>)</span></span><span>
=<span><span>(<span><span>4x</span>+1</span>)</span><span>(<span>x+3</span>)</span></span></span><span>=<span><span><span><span><span>(<span>4x</span>)</span><span>(x)</span></span>+<span><span>(<span>4x</span>)</span><span>(3)</span></span></span>+<span><span>(1)</span><span>(x)</span></span></span>+<span><span>(1)</span><span>(3)</span></span></span></span><span>=<span><span><span><span>4<span>x2</span></span>+<span>12x</span></span>+x</span>+3</span></span><span>=<span><span><span>4<span>x2</span></span>+<span>13x</span></span>+<span>3</span></span></span>
kari74 [83]3 years ago
7 0
Answer is 4x^2+12x+1x+3 
  combine like term it will be
      4x^2+13x+3
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Arthur weighs 34 lb more than Lily. Their combined weight is 180 lbs less than four times Lily's weight. How much does Arthur we
mote1985 [20]
X = Lilys weight
x + 34 = Arthurs weight
4x - 180 = combined weight

x + x + 34 = 4x = 180
2x + 34 = 4x - 180
-2x           -2x
_________________
        34 = 2x -180
     +180        + 180
_______________
       214 = 2x
        107  = x  which is Lily's weight
         141 = x + 34 which is Arthur's weight
The total weight is 248

which is the answer that you get when you do 4(107) = 180 or
428 -180 = 248

5 0
3 years ago
Find the side length of a cube with a volume of 166 m
marin [14]
The answer is 5.5 m.


Cube
Volume = length x width x height

Since the length, width and the height are the same in cube, the formula can be:

Volume = length^3


Let x metres be the side length of the cube.

166 = x^3

x = ∛166

x = 5.495864.....

x = 5.5 (nearest tenth)
8 0
3 years ago
What are the solutions to the quadratic equation (5y + 6)2 = 24?
Ivenika [448]

Answer:

y = \frac{2\sqrt{6} }{5} -\frac{6}{5}  OR  y = \frac{-2\sqrt{6} }{5} -\frac{6}{5}

Step-by-step explanation:

Our quadratic equation is: (5y + 6)² = 24.

The first step is to square root both sides:

5y + 6 = ±√24 = ±2√6

Now subtract 6 from both sides:

5y = ±2√6 - 6

Finally divide by 5 from both sides:

y = \frac{2\sqrt{6} }{5} -\frac{6}{5}  OR  y = \frac{-2\sqrt{6} }{5} -\frac{6}{5}

And, those are the solutions to the equation.

7 0
3 years ago
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What is the formula to find the circumference of a circle and how do i do it?
Leni [432]

Answer:

circumference of a circle = 2*pi*radius

just multiply 3.14 (pi) by 2 by the radius/diameter divided by 2

3 0
3 years ago
Select all that apply.
omeli [17]
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