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borishaifa [10]
3 years ago
12

If Matrix A is 4 x 4, and Matrix B is 4 x 3, what is the size of matrix AB? If AB is undefined, please state so.

Mathematics
1 answer:
skad [1K]3 years ago
8 0
I believe ab equals to 28!
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Find AB, BC, and AC
sp2606 [1]
This algebra one or two please mark me brainlist I need 1
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3 years ago
Some questions have the form y = kx, where k is a number. Drag each question to the correct category below. ( X = y/2 ),( y = .1
fomenos

Answer:

<u>Has the form y = kx</u>

( y = 0.11x)

(y = 0.04x)

<u>Can be put into form y = kx</u>

(z/x = 9)

<u>Other</u>

(5 = xy)

( x = y/2)

Step-by-step explanation:

<u>y = kx</u>

( y = 0.11x)

(y = 0.04x)

<u>kx = y</u>

(z/x = 9)

-----------

( x = y/2 )

( x - 5 = y)

(5 = xy)

8 0
3 years ago
Write the point-slope form of the equation of the line that passes through the point (1, 3) and has a slope of 2. include your w
zubka84 [21]
We must plug into point-slope form. 
Formula for point-slope: y-y1=m(x-x1)
Plug in the values: y-3 = 2(x-1)

And there you have your answer in point-slope form
8 0
3 years ago
fay makes necklaces to sell at a craft fairs she can make 18 necklaces in for 12 days.in simplest terms, at what rate does she m
wolverine [178]
(18 neclaces)/(12 days) = 1.5 necklaces/day

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Rate is generally expressed in terms of quantity per time period. ("Per" means "divided by" here.) So, to find the rate, you divide the quantity by the corresponding time period, as above. There are other sorts of rates, but this is perhaps the most common.
4 0
3 years ago
A survey asked 40 students If they play an instrument and if they are in band.
wel

Answer:

352x^2

Step-by-step explanation:

40\times 1.25x\times 2.20x\times 3.2040×1.25x×2.20x×3.20

(40)1.25x2.20x3.20

+ − .   ln > <

× ÷ /   log ≥ ≤

( )    logx = %

1 Take out the constants.

(40\times 1.25\times 2.20\times 3.20)xx(40×1.25×2.20×3.20)xx

2 Simplify  40\times 1.2540×1.25  to  5050.

(50\times 2.20\times 3.20)xx(50×2.20×3.20)xx

3 Simplify  50\times 2.2050×2.20  to  110110.

(110\times 3.20)xx(110×3.20)xx

4 Simplify  110\times 3.20110×3.20  to  352352.

352xx352xx

5 Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}x

​a

​​ x

​b

​​ =x

​a+b

​​ .

352{x}^{2}352x

​2

​​  

Done

3 0
3 years ago
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