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jasenka [17]
3 years ago
12

Can you subtract a 2x3 and a 2x2 matrix

Mathematics
1 answer:
Marta_Voda [28]3 years ago
5 0

Answer:

Yes! You can

Step-by-step explanation:

1. If this is rows and columns it is doable, however if you are speaking columns by rows it isn't

2. You multiply them like normal except when you reach the end on your 2x2 matrix you repeat the cycle

3. http://www.calcul.com/show/calculator/matrix-multiplication_;2;2;2;3 there's a link to check your answer after you've done it

4

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alex41 [277]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
Rewrite by completing the square 2x^2+7x+6=0
Kitty [74]

Answer:

2x^2+7x+6=0\\\\2(x^2+\frac72x+3)=0\\\\2[x^2+2\cdot x\cdot\frac74+(\frac74)^2-(\frac74)^2+3]=0\\\\2[x^2+2\cdot x\cdot\frac74+(\frac74)^2]-2(\frac74)^2+6=0 \\\\2(x+\frac74)^2-2\cdot\frac{49}{16}+6=0\\\\2(x+\frac74)^2-\frac{49}8+\frac{48}8=0\\\\2(x+\frac74)^2-\frac18=0

6 0
3 years ago
What are the solutions of the equation 2x2 = 2?
kkurt [141]
2x^2=2\ \ \ |divide\ both\ sides\ by\ 2\\\\x^2=1\to \boxed{x=-1\ or\ x=1}
3 0
3 years ago
Mr. Stanford’s greenhouse has the dimensions shown. The volume of the greenhouse is 90 cubic yards. Find the missing dimension o
bulgar [2K]

Answer:

h=10\ yd

Step-by-step explanation:

we know that

The volume of the triangular prism of the figure is equal to

V=Bh

where

B is the area of the triangular base

h is the height of the triangular prism

Find the value of B

B=\frac{1}{2}(6)(3)=9\ yd^{2}

we have that

V=90\ yd^{3}

substitute the values and solve for h

90=9h

h=90/9=10\ yd

5 0
3 years ago
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