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sattari [20]
2 years ago
5

4x2 - 8x - 5

Mathematics
2 answers:
Alekssandra [29.7K]2 years ago
7 0
The correct answer is 56.8
nikdorinn [45]2 years ago
7 0
The correct answer is 56.8
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Gabriela drew a net of a rectangular prism on
shtirl [24]

Answer:

412 squares

Step-by-step explanation:

16o

140

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412

trust me on this

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3 years ago
For the data set 3,3,9,12,13, the mean is 8.What is the mean absolute deviation?
aleksandrvk [35]
The answer is C: The MAD is 4. Hope that helps
8 0
4 years ago
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A room has a rectangular floor that is 15 feet by 21 feet. What is the area of the floor in square yards ? ​
Soloha48 [4]

Answer:

Hey There!

Let's solve...

Here it is a rectangular floor with length =21 cm and width =15cm

So

area = l \times w \\  = 21 \times 15 \\  = 315 {ft}^{2} \\  \\

So now We need to convert it to yards square

315ft^{2} \times  \frac{ {1yd}^{2} }{ {9ft}^{2} } \\  \\  =  \cancel{315ft^{2}}  \: ^{35}  \times  \frac{ {1yd}^{2} }{ \cancel{9 {ft}^{2} }}  \\  \\  = 35 {yd}^{2}

So how this 9 ft^2 came??

Let's know

ft \to \: yards \\  \\ 3ft = 1yd \\  \\  {3ft}^{2} =  {1yd}^{2}  \\  \\  \boxed{ {9ft}^{2} =  {1yd}^{2}}

<h2>I hope it is helpful to you...</h2><h3>Cheers!_______</h3>
8 0
3 years ago
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Work out the area of a rectangle with base, b=28mm and perimeter, P=74mm.
zhannawk [14.2K]

Answer:

28 \times 2 =5 6 \\ 74 - 56 = 18 \\ 18  \div 2 = 9 \\ width  = 9 \\ area = 9 \times 28 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 252mm ^{2}

3 0
3 years ago
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If pr is 3x+14 and qr 7x-10 what is x
mr Goodwill [35]
Start the equation by putting the equations equal to each other 3x+14=7x-10
Next +10 on both sides
3x+14=7x-10
+10 +10
You are left with 3x+24=7x
because the 10's canceled each other out.
Next -3x on both sides
3x+24=7x
-3x +3x

You are left with 24= 10x
because like before the 3's canceled each other out
Now you will divide both sides by 10

24=10x
---- -----
10 10

2.4= X is the answer!
8 0
3 years ago
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