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tresset_1 [31]
3 years ago
8

Help ASAP! Will award brainliest!

Mathematics
2 answers:
AveGali [126]3 years ago
5 0

Answer:

The last (bottom) option in your list

Step-by-step explanation:

Do the product of the matrix one at a time as shown in the attached image:

Lady_Fox [76]3 years ago
3 0

Answer:

A^3=\left[\begin{array}{ccc}19&27&9\\6&19&18\\18&9&19\end{array}\right]\\\\PQ-not\ possible

Step-by-step explanation:

A^3=A\cdot A\cdot A

A³ - in the attachment

PQ is not possible, because

the dimensions of P are 3 × 3

the dimensions of Q are 2 × 2.

We can multiply two matrices A and B if the number of columns in A is equal to the number of rows in B.

n × m and m × k

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There are 4 students in a small class. To make a team, the names of 3 of them will be drawn from a hat. How many different teams
Volgvan

Answer:

Step-by-step explanation:

Order shouldn't make any difference.

3 C 4  = 4!/(3! 1!) = 4

Let's see if that is right.

1 2 3

1 2 4

1 3 4

2 3 4

Any other combination will produce a duplicate if order doesn't matter. For example

2 4 3 is the same thing as 2 3 4

8 0
3 years ago
Simplify 3(3x - (2-6y + 2x) + 3y)<br>LILL​
ryzh [129]

Answer:

=3x+27y−6

Step-by-step explanation:

3(3x−(2−6y+2x)+3y)

=(3)(3x+−2+6y+−2x+3y)

=(3)(3x)+(3)(−2)+(3)(6y)+(3)(−2x)+(3)(3y)

=9x−6+18y−6x+9y

=3x+27y−6

7 0
3 years ago
What is the answer to this problem
Ulleksa [173]

Answer:

A= 3, B=-5, C=2

Step-by-step explanation:

Put them in order of leading power.

3x^2-5x+2

6 0
3 years ago
the sum of two numbers is zero. when 15 times the smaller numbers is added to 10 times the larger, the result is 1. find the two
EleoNora [17]

We have two numbers say a, b. And a system of equations.

a+b=0\wedge\dfrac{a+b}{15}+10(a+b)=1

It looks a bit intimidating but it's actually very easy.

Instead of term a + b in the second equation we can say it's zero because the first equation describes a + b as being equal to 0.

So,

\dfrac{0}{15}+10\cdot0=1\Longrightarrow 0+0=1

The above equation is not true therefore numbers a and b do not exists in the real number domain.

a,b\notin\mathbb{R}

No solution.

Hope this helps.

7 0
3 years ago
Christian rented his books from the internet for a price represented by the equation below. Lela rented her books from the books
Aleks [24]
Could you add a image or message me the image, after you do that you can comment on this and I’ll come back to it.
8 0
3 years ago
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