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3 years ago

What two expressions are equivalent to (-8)(-12)(2)

Mathematics

1 answer:

Dmitrij [34]3 years ago

3 0

I am somewhat confused on what this is asking.

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Please help question in picture!

eduard

Answer:

Step-by-step explanation:

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3 years ago

A card is drawn from a standard deck of cards. Find the probability, given that the card is a non dash face card. P(nine)

sattari [20]

Answer:

Step-by-step explanation:Knowing that

There are 26 black cards and 26 red ones. Face card consists of jack (J), queen (Q), king (K). There are (26-6)=20 non face red cards. “Either ... or ...” here means bundle of both kinds of cards.

So, there are (26+20)=46 expected cards.

If you also ask for the probability, so the probability of the question asking above is equal to

23/26

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3 years ago

Arc AB is 1/6 of the circumference of a circle. What is The radian measure of the central angle?

Novosadov [1.4K]

Answer:

It’s b pie over 3

Step-by-step explanation:

I just know this I did the work

3 0

3 years ago

Read 2 more answers

How to solve this problem

uranmaximum [27]

The answer will be C. I hope this helped you! ^^

4 0

2 years ago

See question in attached photo.

statuscvo [17]

9514 1404 393

Answer:

(a, b) = (-2, -1)

Step-by-step explanation:

The transpose of the given matrix is ...

$A^T=\left[\begin{array}{ccc}1&2&a\\2&1&2\\2&-2&b\end{array}\right]$

Then the [3,1] term of the product is ...

$(A\cdot A^T)_{31}=\left[\begin{array}{ccc}a&2&b\end{array}\right]\cdot\left[\begin{array}{ccc}1&2&2\end{array}\right]=a+2b+4$

and the [3,2] term is ...

$(A\cdot A^T)_{32}=\left[\begin{array}{ccc}a&2&b\end{array}\right]\cdot\left[\begin{array}{ccc}2&1&-2\end{array}\right]=2a-2b+2$

Both of these terms in the product matrix are 0. We can solve the system of equations by adding these two terms:

(a +2b +4) +(2a -2b +2) = (0) +(0)

3a +6 = 0

a = -2

Substituting for 'a' in term [3,1] gives ...

-2 +2b +4 = 0

b = -1

The ordered pair (a, b) is (-2, -1).

8 0

3 years ago