All categories

3 years ago

What is 2A- 3B, if A = 12-13].and-[ -4 -2]

Mathematics

2 answers:

Liono4ka [1.6K]3 years ago

7 0

Answer:

Step-by-step explanation:

777dan777 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

2A-3B

2 multiplied by 'A' and 3 multiplied by 'B'

You will get

2A- 12 6

2 10

3B- 9 3

-12 -6

you will then have to subtract the two matrices and you will get

- 3 3

14 16 which is the second answer.

You might be interested in

Use CALCULUS to find coordinates of the turning point on C.

antiseptic1488 [7]

Oi

Just calculating the differential. Step by step:

$y=12 \sqrt{x} -x \frac{3}{2}-10 \\ \\ y=12x^{ \frac{1}{2} } -x \frac{3}{2}-10 \ \ \ \boxed{transform \ \sqrt{x} =x^{ \frac{1}{2} }} \\ \\ Differentiating \\ \\ y'=12. \frac{1}{2}.x^{ \frac{1}{2}-1 } -1.x^{1-1}. \frac{3}{2}-0 \\ \\ y'=6.x^{ -\frac{1}{2} } -x^{0}. \frac{3}{2} \\ \\ y'=6. \frac{1}{x^{ \frac{1}{2} }} -1. \frac{3}{2} \\ \\ \boxed{y'=\frac{6}{ \sqrt{x} } -\frac{3}{2}}$

If you want to know where the tangent has no slope:

$\frac{6}{ \sqrt{x} } - \frac{3}{2} =0 \\ \\ \frac{6}{ \sqrt{x} } = \frac{3}{2} \\ \\ 3 \sqrt{x} =12 \\ \\ \sqrt{x} = \frac{12}{3} \\ \\ \sqrt{x} =4 \\ \\ (\sqrt{x})^2 =4^2 \\ \\ x=16$

3 0

3 years ago

Use the Pythagorean Theorem to find which one of the

marissa [1.9K]

<h3>Hello There!!</h3>

<h3><u>Given</u>:-</h3>

Altitude (AB) = 9cm

Base (BC) = 12cm

Hypotenuse (AC) = ?

$\fbox \text{According To Pythagoras Theorem = }$

$\text{(Hypotenuse)² = (Altitude)² + (Base)²}$

Inserting The Values

$\text{(Hypotenuse)²} =( {9})^{2} + (12) {}^{2} \\ \\ \implies \text{(AC)} {}^{2} = 81 + 144 \\ \\ \implies \text{(AC}) {}^{2} = 225 \\ \\ \implies \text{AC} = \sqrt{225} \\ \\ \implies \text{AC} = 15$

$\therefore \text{Hypotenuse \: (AC)} = 15 \text{cm}$

Option B= <em>15cm</em> is the <u>correct answer</u>

<h3>Hope This Helps</h3>

8 0

3 years ago

Help with #1 please?

anygoal [31]

7/9 + 5/6 + 3 2/3
7/9 + 5/6 + 11/3
Common denominator is 18 so we get
14/18 + 15/18 + 66/18
= 95/18 cups of milk
Multiply this by 3 (since he uses 1/3 cups per latte)
= 285/18 = 15 15/18 = 15 5/6 cups of latte

7 0

3 years ago

If you have a qurter to all the time i listen to the same song how much money would i have

matrenka [14]

Answer:

How many times do you listen to the song

Step-by-step explanation:

8 0

3 years ago

Need some help with this

Mkey [24]

Answer:

the slope is 1

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers