Select the correct answer. If A = [5 -8 3 0] -and B = [2 -9 1 0] , which matrix is the result of 2A - 38?
A [4 11 3 0] B. (4 38 9 0] C. [4 11 9 0] D. [1 -18 1 0]

Answers

Answer 1

2A - 3B =
2 [5, -8, 3, 0] - 3 [2, -9, 1, 0] =
[10, -16, 6, 0] + [-6, 27, -3, 0] =
[10 - 6, -16 + 27, 6 - 3, 0 + 0] =
[4, 11, 3, 0] = A

I love linear algebra!

Answer 2

Answer: A

Step-by-step explanation: I got this right on Edmentum.

Related Questions

How do i solve this |6x-3|=7

Answers

Answer:

x=5\3,-2\3

Step-by-step explanation:

Long division 5th grade I’m sorry if I’m asking a lot but I’m really new to this

Answers

Answer:

95.2

Step-by-step explanation:

Answer:

95.2

Step-by-step explanation:

476÷5=95.2

[tex]\sqrt[5]{476} }[/tex]

9x5=45

47-45=2

bring down the 6

5x5=25

26-25=1

Since the one is excess the answer is 95 and 1/5

but 1 divided by 5 equals .2

so the answer would b 95.2

estimate the product by rounding each number to its greatest place value of 2342.7 times 784.3

Answers

Answer:

The answer is 1,837,379.61 but if you round, it's 2,000,000,.00.Hope this helps!

I Need Help With This Question

Answers

a because your not dividing it by 5 your subtracting 5 from k divided by 2

Answer:

Step-by-step explanation:

product means multiplication, but there isn't any multiplication happening

What is the solution to this system of equations?
X+ 2y = 4
2x-2y = 5
O (3.-53
0
(3.)
no solution
infinitely many solutions

Answers

Answer:

X+2y=4

4+2y=x

2(2+y)=x

2x-2y=5

2(x-y)=5

x-y=5/2

Answer:

(x, y) = (3, 1/2)

Step-by-step explanation:

x + 2y = 4

2x - 2y = 5

There is more than one way to do this. I will do it by substitution.

From the first equation, x + 2y = 4, so x = (-2y) + 4

Now, in the second equation, I will replace x with (-2y + 4)

2(-2y + 4) - 2y = 5

-4y + 8 -2y = 5

-6y + 8 = 5

-6y = -3

6y = 3

y = 3/6

---------------------------------> y = 1/2, one part of the answer

Now I can go back to the first equation, and relpace 'y' with 1/2

x + 2(1/2) = 4

x + 1 = 4

-----------------------------------> x = 3, the other part of the answer

So now we believe the solution is (x, y) = (3, 1/2)

Now check the answer, back in the original equations!!

------> In the first equation, we would have 3 + 2(1/2) = 4.

3 + 1 = 4

That is true

-------> In the second equation, we would have 2(3) - 2(1/2) = 5

6 - 1 = 5

That is true

Our answer is found and checked.

(x, y) = (3, 1/2)

a package has one face, no edges, and one vertex. what is the object?

Answers

Answer:

a cone

Step-by-step explanation:

Answer:

cone

Step-by-step explanation:

Triangle A is a scaled version of triangle B. The dimensions of triangle B are twice the dimensions of triangle A. The area of
triangle B is 144 sq cm.
What is the area of triangle A?

Answers

Answer:

576 sq cm

Step-by-step explanation:

For example imagine a rectangle, the area of which is width * height = area

If you multiply the dimensions by 2 you multiply the width AND the height which is 2 * width * 2 * height = 4 * width * height

This is true for all scalings, if you times the dimensions by n, you times the area by n^2

144 * 2^2 = 576

What is the median for the set of data?
6, 7, 10,12,12,13

Answers

Sorry but I need more information

QUESTION 1: Is the following equation proportional? How do you know? y=3x-4

QUESTION 2: Is the following equation proportional? how do you know? y=7x

Answers

Answer:

1: Yes because it is in the form y=mx+b

2: Yes because it is in the form y=kx

Step-by-step explanation:

I do this kind of stuff for math

PLEASE HELP
Kayla and John are reading a graphic novel. Kayla has read 35 pages and is now
reading 20 pages per day. John has read 85 pages and is now reading 10 pages per
day.

3. How long will it be before Kayla and John have read the same number of
pages?

Answers

Answer:

Five days

Step-by-step explanation:

The answer is 5 days.

Drag each equation to the value that makes it true.

Answers

Answer:

1).5d=7

5×14=70

2).d-6=8

18-6=8

3).1/3.d=6

1/3×18=6

4).180÷d=10

180÷18=10

5).d+1/3=1

2/3+1/3=1

Adam bought of fruit that weighed 6 3/8. If he bought a second box that weighed 7 2/5 kilograms, what is the combined weight of both boxes?

Answers

Answer:

The combined weight is 13 31/40.

Step-by-step explanation:

Which of the following is a polynomial?
A.
(x - 2)
(x++3)
B. +2
х

c. x2-1
D. x + x4 + 16

Answers

Answer:

x++3 is even equal sides

Step-by-step explanation:

Solve for n: 21 K - 3n + 9 p is greater than 3 p + 12

Answers

Answer:

n > p + 1 + 7k

Step-by-step explanation:

21k - 3n + 9 > 3p + 12

21k - 3n > 3p + 12 - 9

3n > 3p + 3

3n > 3p + 3 + 21k

n > (3p + 3 + 21k)/3

n > p + 1 + 7k

its scale factoring, please help thanks

Answers

45cm I’m sorry that’s not the answer I just need answers for my questions sis

What is -4(5 + (-2))

Answers

Answer:

-12

Step-by-step explanation:

5 + -2 = 3

-4 x 3 = -12

Answer:-12

Step-by-step explanation:

A bus traveling from Memphis to Nashville has an average speed of 53 mph. How long will the trip take in hours if the distance between the two cities is 220 miles? ( HOW DID YOU GET YOUR ANSWER PLEASE SHOW YOUR WORK, DO NOT BOTHER ANSWERING IF YOU DO NOT SHOW WORK AND TELL ME HOW YOU GOT YOUR ANSWER!!)
A. 48.14
B. 22.36
C. 192
D. 4.15
E. .50
F. 0
G. .251
H. 1.25
I. -135

Answers

Answer:

the answer is 4.15.

Step-by-step explanation:

this is super easy my ffriend. think about it. 53 miles per hour. how many miles do u go in an hour... 53 MILES PER HOUR. so you now know you go 53 miles every hour. so what you then do is see that it is 220 miles to ur destination. in an hour you go 53 miles so you take 220 DIVIDED BY 53 and you get ur answer.

After selling half his old games, Sam went and bought 8 new ones. He
now has 30 games. How many did he start with?

Answers

Answer: He started with 44

Step-by-step explanation: 44/2=22

22+8= 30

Find the measure of the missing angles.

Answers

Answer:

angles b and c should be 153° each.

Step-by-step explanation:

We know the smaller angle is 27°. The other small angle, vertical to the 27° angle is also 27° because they are vertical angles. Along the lines, two angles should form 180°. So 180-27=153°. All together the angles should be 360°. Check your answer by doing 153+153+27+27=360. therefore the missing angles are both 153°

Carlos brought 16 packs of cola to a party, and each pack had 8 cans. Heather brought 9 cans of juice. How many cans did they bring in all?

Answers

Well, If there is 16 packs and 8 in each pack then you multiply 16 and 8 which is 128, then add the extra 9 cans of juice and the answer is 137. Have a good rest of your day/night!!

which binomial is a factor of 8x^2y^3-18y

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Given the expression

[tex]8x^2y^3-18y[/tex]

Apply exponent rule: [tex]a^{b+c}=a^ba^c[/tex]

[tex]8x^2y^3-18y=8yy^2-18y[/tex] ∵ [tex]x^2y^3=yy^2[/tex]

[tex]=4\cdot \:2yy^2+9\cdot \:2y[/tex]

Factor out common term 2y

[tex]=2y\left(4x^2y^2-9\right)[/tex]

We know that the Binomial is an expression that consists of two terms. Thus,

(4x²y²- 9) represents the binomial factor of [tex]8x^2y^3-18y[/tex]

We can further simplify by Factoring 4x²y² - 9: (2xy + 3) (2xy - 3)

[tex]=2y\left(2xy+3\right)\left(2xy-3\right)[/tex]

Here:

(2xy + 3) and (2xy -3) are the binomial factors of [tex]8x^2y^3-18y[/tex] as each of them consists of two terms.

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Answers

Answer:

Umm Ok I will

Step-by-step explanation:

Go and follow his account.

Answer:

.....I have no words...

Step-by-step explanation:

A certain animal gets food from another animal without killing it. Identify the type of organism.
(A) Saprophyte
(B) Carnivore
(C) Parasite
(D) Autotroph

Answers

Answer:

The correct answer is C. Parasite.

Step-by-step explanation:

Parasitism describes the phenomenon within the animal and plant world that an organism or virus (parasite) misuses a usually considerably larger organism of a different species as a host. The host serves the parasite for food supply (mostly in the form of blood or other body secretions) and in some cases also as a long-term habitat. The host's health is damaged by the parasite, but usually remains alive. The consequences of parasitic infestation range from sting or bite injuries from massive physical complaints to serious infectious diseases and even death in extreme cases. The best known and most widespread human parasites are human lice, mosquitoes and various types of ticks and worms.

Which number is a part of the solutions for the inequality
7x- 5 ≥ −2

Answers

Answer:

Adding

(

−

)

on both sides, we get,

−

≥

−

⇒

≥

Step-by-step explanation:

PLEASE HELP ITS URGENT I HAVE 3 MINS AND IM FAILING I REALLY NEED A A ASAP PLEASE HELP

Answers

Answer:

I am pretty sure it is B I am not sure but this is what I think

Step-by-step explanation:

Which is the answer?

Answers

Answer:

Step-by-step explanation:

Is -7/3 equivalent to -7/-3?

Answers

Answer:

Step-by-step explanation:

If Oscar can make 5 doughnuts every 2 minutes, exactly how many minutes
would it take him to make 36 doughnuts?

Answers

The answer is 14.4 minutes

Raul crosses Main Street when he walks home from school. The graph of the function d(t)=4|t-0.75) shows Raul's distance, in miles, from Main Street after thours. The domain of the function is 0 <= x <= 1.5 The graph shows his entire trip

Answers

Answer: does someone have it cause I’m stuck to

Step-by-step explanation:

Lisa and Marie are both on the track team. During practice, Lisa ran 10 laps around
the track in 18 minutes. Marie ran 8 laps around the track in 14 minutes. Who ran at a
faster rate? If each runner continues at her same pace, how long would it take each
one to run 15 laps?

Answers

Answer:

Marie ran at a faster rate. It takes 27 minutes for Lisa to run 15 laps while it takes Marie 26.25 minutes to run 15 laps.

Step-by-step explanation:

18 ÷ 10 = 1.8 (Lisa's rate)

14 ÷ 8 = 1.75 (Marie's rate)

1.8 x 15 = 27 minutes (How long it takes for Lisa to run 15 laps)

1.75 x 15 = 26.25 (How long it takes for Marie to run 15 laps)

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Select the correct answer. If A = [5 -8 3 0] -and B = [2 -9 1 0] , which matrix is the result of 2A - 38? A [4 11 3 0] B. (4 38 9 0] C. [4 11 9 0] D. [1 -18 1 0]​

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Select the correct answer. If A = [5 -8 3 0] -and B = [2 -9 1 0] , which matrix is the result of 2A - 38?
A [4 11 3 0] B. (4 38 9 0] C. [4 11 9 0] D. [1 -18 1 0]