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solmaris [256]
3 years ago
10

A science fair poster is a rectangle

Mathematics
2 answers:
mr Goodwill [35]3 years ago
7 0
Hello There!

Write formula:
Area = l x w
Substitute values in:
Area = 3 x 2
Solve:
Area = 6ft².
Convert to Square inches:
6ft² = 864in²

Hope This Helps You!
Good Luck :) 

- Hannah ❤
lesantik [10]3 years ago
5 0
1 ft = 12 inches

so 3 ft = 12 * 3 = 36 inches (length)
and 2 ft = 2 * 12 = 24 inches (width)

A = L * W
A = 36 * 24
A = 864 square inches <==
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What is the simplest form of the expression 6x(x − 4) − 16x2 − (9x − 1)
Sedbober [7]
Use distributie property which is
a(b+c)=ab+ac
therefor
6x(x-4)=6x^2-24x

distribute the negative 1 infroont of the (9x-1)
-1(9x-1)=-9x+1
now we have

6x^2-24x-16x^2-9x+1
gropu like terms
6x^2-16x^2-24x-9x+1
add like terms
-10x^2-33x+1 is simplest form
8 0
3 years ago
1. Jennifer earns 25% commission as a salesperson for her company. If she sells $1850 worth of product, how much commission does
elixir [45]

Answer:

$462.50

Step-by-step explanation:

Find 25% of 1850:

1850(0.25)

= 462.5

So, she earns $462.50 in commission

7 0
3 years ago
(1 point) Linear System - Three Variables Solve the following system of equations using Gaussian elimination method. If there ar
EastWind [94]

Answer:

x=\frac{-363}{70} ≈ -5.1857

y=\frac{-192}{35} ≈ -5.4857

z=\frac{313}{84} ≈ 3.7262

Step-by-step explanation:

Rewrite the equation system as:

6x+8y=-75

-3x+6y+6z=5

2x-9y=39

Now, write the system in its augmented matrix form:

\left[\begin{array}{cccc}6&8&0&-75\\-3&6&6&5\\2&-9&0&39\end{array}\right]

applying row reduction process to  its associated augmented matrix:

Swap R1 and R3, and then Swap R1 and R2:

\left[\begin{array}{cccc}-3&6&6&5\\2&-9&0&39\\6&8&0&-75\end{array}\right]

R3+2R1

\left[\begin{array}{cccc}-3&6&6&5\\2&-9&0&39\\0&20&12&-65\end{array}\right]

3R2+2R1

\left[\begin{array}{cccc}-3&6&6&5\\0&-15&12&127\\0&20&12&-65\end{array}\right]

15R3+20R2

\left[\begin{array}{cccc}-3&6&6&5\\0&-15&12&127\\0&0&420&1565\end{array}\right]

Now we have a simplified system:

-3x+6y+6z=5\\0-15y+12z=127\\0+0+420z=1565

-3x+6y+6z=5\hspace{5 mm}(1)\\0-15y+12z=127\hspace{3 mm}(2)\\0+0+420z=1565\hspace{3 mm}(3)

From (3):

z=\frac{313}{84} (4)

Replacing (4) in (2)

y=\frac{-192}{35} (5)

Finally replacing (5) and (4) in (1)

x=\frac{-363}{70}

7 0
3 years ago
What is the range of f(x)=x^3
Alecsey [184]
Infinity because it's a cubic function with no restricted range or domain
3 0
3 years ago
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sdas [7]
We can represent this situation by the equation 2x+4x+5x=33.

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6:12:15.

Do these 3 ages add up to 33?  6 + 12 + 15 = 33?  YES!

The children's ages are 6, 12 and 15 years respectively.
4 0
3 years ago
Read 2 more answers
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