Can someone explain this to me if you can.​

Answer:

see explanation

Step-by-step explanation:

2B + 3C

= 2 [tex]\left[\begin{array}{ccc}4&-5\\-2&1\\\end{array}\right][/tex] + 3 [tex]\left[\begin{array}{ccc}1&-1\\-6&3\\\end{array}\right][/tex]

Multiply each element in the matrices by the scalar quantity, that is

= [tex]\left[\begin{array}{ccc}8&-10\\-4&2\\\end{array}\right][/tex] + [tex]\left[\begin{array}{ccc}3&-3\\-18&9\\\end{array}\right][/tex]

Add corresponding elements from each matrix

= [tex]\left[\begin{array}{ccc}8+3&-10-3\\-4-18&2+9\\\end{array}\right][/tex]

= [tex]\left[\begin{array}{ccc}11&-13\\-22&11\\\end{array}\right][/tex]

Answer:

1 is true

2 is true

3 is true

Answer:

1 check

2 check

3 no check

4 no check

5 check

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

math

Answer:

Don't cheat that's lame

Answer:

12.56

Step-by-step explanation:

143.45+22.55=157.00

157×.08= 12.56

Answer:

-2

Step-by-step explanation:

Answer:

Bedroom = x^2 ft^2

Closet = 25 ft^2

Bathroom = 6x ft^2

Total Area = x^2 + 6x + 25 ft^2

Given:

Total number of tickets = 600

Cost of adult ticket = $6.00

Cost of student ticket = $4.00

Total sales = $2900.00

To find:

The number of tickets of each type.

Solution:

Let the number of adult tickets be x and number of student tickets be y.

According to the question,

[tex]x+y=600[/tex]        ...(i)

[tex]6x+4y=2900[/tex]      ...(ii)

Multiply equation (i) by 4 and subtract the result from (ii),

[tex]6x+4y-4(x+y)=2900-4\times 600[/tex]

[tex]6x+4y-4x-4y=2900-2400[/tex]

[tex]2x=500[/tex]

Divide both sides of 2.

[tex]x=250[/tex]

Put x=250 in (i).

[tex]250+y=600[/tex]

[tex]y=600-250[/tex]

[tex]y=350[/tex]

Therefore, number of adult tickets is 250 and number of student tickets is 350.

Answer:

33/28

Step-by-step explanation:

(3/4) + (3/7) = 33/28

~1,18

Answer: I think it might be sss or sas

Step-by-step explanation:

Answer:

I think AAA is the answer because similarity is mostly proved by AAA axiom

Answer:

njblhgkc dggh,bn bhjvbhj,n hg cfxzedsetxdrycfuvgibkhjnm

Step-by-step explanation:

Answer:

e+a=110° because e and a are corresponding angles ♥️

Answer:

[tex]10\frac{9}{25}[/tex]

Step-by-step explanation:

Answer:

10 9/25

Step-by-step explanation:

i did mathsss i hope this does help tho

Answer:

Step-by-step explanation:

y2-y1

x2-x1=

4-3    

4-1 =  1/3

y=1/3x

Answer:

ummm there's no question dude but it's good to know that because i never knew that

Step-by-step explanation:

...

Answer:

12 Hours

Step-by-step explanation:

So it says he writes 8 pages in 2 hours. Which would mean he takes an hour to write 4 pages. You divide 48 pages by 4 hours and you get 12.

Answer:

x = 5

Step-by-step explanation:

Here, from what we have, the angle and the sides facing it are equal

Since we have pi oh both sides

Thus;

6x + 6 = 9x-9

9x-6x = 9 + 6

3x = 15

x = 15/3

x = 5

Answer: Cody rented the bike for 7 hours.

Step-by-step explanation:

$65-$16=$49

$49/$7=7 hours

Answer:

804.672 km

Step-by-step explanation:

Answer:

It's 804.672 long in kilometers. If needed to be round then about 805 kilometers.

Step-by-step explanation:

You know that:

1 mile = 1.609344 km

So you'll do

500 * 1.609344 = 804.672 km

Answer:

3:2 6:4 24:16

Step-by-step explanation:

Answer:

6 days

Step-by-step explanation:

You just divide 3/8 by 3 3/4. Hope this helps you!!!

Answer:

B.)58?

Step-by-step explanation:

Hope I helped..

Answer:

b: 58

Step-by-step explanation:

Answer:

120 minutes or 2 hours I think

Step-by-step explanation:

ok so you want to figure out how many hours it will take for her to bake 48 cookies. It takes 15 minutes to bake 6 cookies.

So 6x8=48 cookies.

Multiply 15 minutes times 8 since one batch of cookies (6) 15 minutes long and she wants to bake 48 cookies.

15x8=120

That's 120 minutes, but you want how many HOURS it takes.

there are 60 minutes on a hour so you will take 120 divided by 60

120/60= 2

To check, multiply 60x2= 120.

Hope this helps!

Answer:

Step-by-step explanation:

This might have been helpful to Newton as it allowed him to focus more clearly on his ideas. Newton was incredibly talented and ahead of his time in his field, which being in isolation helped him focus and develop on his ideas. This is not the case for the majority, most scientists tend to focus on a single aspect of a problem, usually the aspect that they have the most experience in. This can lead to them being blinded and not being able to see the possible solution. That is why working with others that are able to view the problem from a different perspective can help greatly.

Working in isolation might have helped Newton focus clearly on his ideas.

Working in isolation might be problematic in developing scientific ideas because of the tendency of having a narrow perspective about a problem and not being able to find possible solution.

Working in isolation means to work remotely or alone without the input or help from other people.

Working in isolation might have been helpful to Newton, who was quite talented, as it may have enabled him focus clearly on his ideas.

1. Tendency of having a narrow perspective about a problem.

2. Probability of not being able to find possible solution.

In summary, working in isolation might have helped Newton focus clearly on his ideas.

Working in isolation might be problematic in developing scientific ideas because of the tendency of having a narrow perspective about a problem and not being able to find possible solution.

Learn more about working in isolation on:

https://brainly.com/question/7353006

Answer:

[tex]b.)31\neq -22[/tex]

Step-by-step explanation:

Simplify each equation using PEMDAS:

Parentheses (x)

Exponents x²

Multiplication and Division, left to right × ÷

Addition and Subtraction, left to right - +

It is also important to follow PEMDAS when working within grouping symbols like parentheses.

Also, remember that two negatives make a positive, and when a negative and positive are multiplied, the result is always negative.

[tex](-2)(8+6+-3)\\\\-2*(8+6-3)\\\\-2*(14-3)\\\\-2*11\\\\-22[/tex]

Find which answer is not equal to -22.

a.) [tex](-2)(8+6)+(-2)(-3)\\\\-2*(8+6)-2*-3\\\\-2*14-2*-3\\\\-28-2*-3\\\\-28+6\\\\-22[/tex]

---------------------------------------------------

b.) [tex](-2)*(8+6)+(-3)\\\\-2*(8+6)-3\\\\-2*14-3\\\\-28-3\\\\-31[/tex]

---------------------------------------------------

c.) [tex](-2)(8)+(-2)(6)+(-2)(-3)\\\\-2*8-2*6-2*-3\\\\-16-2*6-2*-3\\\\-16-12-2*-3\\\\-16-12+6\\\\-28+6\\\\-22[/tex]

---------------------------------------------------

d.) [tex](-2)(8)+(-2)(6+-3)\\\\-2*8-2*(6-3)\\\\-2*8-2*3\\\\-16-2*3\\\\-16-6\\\\-22[/tex]

---------------------------------------------------

Option b is not equal to -22.

:Done

Answer:

I think it's 169

Step-by-step explanation:

since a straight line is 180⁰ I subtracted 11

Answer:

Step-by-step explanation:

Given Initial deposit = $125

If each moth $55 is being deposit, the balance each month will form an AP as shown;

125, 180, 235...

The nth term of the AP is expressed as;

y = a + (x-1)d

a is the first term = 125

d is the common difference = 180- 125 = 235-180 = 55

Substitute

y = 125 + (x-1)55

y =125+55x-55

y = 70+55x

y = 55x + 70

Step-by-step explanation:

(x_42)(x+42)...

....