Given matrices A and B shown below, find (3)A+(8)B.

Given Matrices A And B Shown Below, Find (3)A+(8)B.

Answers

Answer 1

Answer:

[tex]\left[\begin{array}{ccc}32&-55\\3&39\end{array}\right][/tex]

Step-by-step explanation:

[tex]\left[\begin{array}{ccc}0&-15\\3&15\end{array}\right] +\left[\begin{array}{ccc}32&-40\\0&24\end{array}\right] =\left[\begin{array}{ccc}0+32&-15+(-40)\\3+0&15+24\end{array}\right] = \left[\begin{array}{ccc}32&-55\\3&39\end{array}\right][/tex]


Related Questions

Find the exact value​

Answers

Answer:

yrdfcghftfc 6

Step-by-step explanation:

jhfbvnhjyffvb

I need help with this please

Answers

Answer:

23 isnthe anseeerjfhdhvdvd hdjdbbe

If a bag contains 16 red, 4 yellow, 20 blue, and eight white balloons, what is the part to whole ratio of red balloons to all balloons?

Answers

Answer:  1:3

Step-by-step explanation:

(add) 16 + 4 + 20, + 8 = 48.

Then simplify 16:48 = 2:6 = 1:3

Hope this helped, have a great day/night!

~IFoundJiminsLostJams~

For this function: f(x)=I-3x-1I
find each of the following:
a. f(-1)
b. f(0)
c. f(3)

Answers

Step-by-step explanation:

a. f(-1)=(3-1)

=2

b.f(0)=(0-1)

=-1

c.f(3)=(-9-1)

=-10

The cost of making a cake is $9. The Baker wants to make a profit of $ 9 per cake and the cake is to be cut into 36 pieces, what is the selling price of each piece?

Answers

$9+$9=$18
36/18= 0.5
Each piece= $0.50

Answer:

$0.50

Step-by-step explanation:

Given

Cost price = $9

Selling price of the cake is:

$9 + $9 = $18

Selling price of each piece:

$18/36 = $0.50

I have more question then this

Answers

9514 1404 393

Answer:

  A. CCW 180° about the origin

Step-by-step explanation:

Figure B appears to be a reflection of Figure A across the origin. Such a reflection can be described by any of ...

reflection across the originrotation 180° CW about the originrotation 180° CCW about the originreflection across the x-axis followed by reflection across the y-axisreflection across the y-axis followed by reflection across the x-axis.

Find the distance between A(-4,4) and B(-2,2). Round your answer to the nearest tenth.

Answers

Answer:

6.3

Step-by-step explanation:

1) rule:

[tex]d=\sqrt{(X_A-X_B)^2+(Y_A-Y_B)^2)}[/tex]

2) according to the rule above:

[tex]d=\sqrt{36+4}=2\sqrt{10};[/tex]

d≈6.3

Answer:

6.3

Step-by-step explanation:

11. Find the slope of a line which passes through the points (3,4) and (8,-1).
a. -1
b. 1
c. ⅗
d. 5/3​

Answers

Answer:

A

Step-by-step explanation:

Slope = (change in y)/ (change in x)

          = (-1 - 4)/ (8 - 3)

          = -5/5

          = -1

(Pre calc) I only need to do part A i would love to have some help I will make it 120 Points

Answers

Answer:

The domain should be X

Step-by-step explanation:

I'm a bit unsure but I think it's correct

please help!!!!!!!!!!!!!!!!!

Answers

The answer is 0.06!!!

Also if I can I give brainiest answer to first person


10. A stockbroker charges his customers $30 to open an account and
$15 per month to manage the account. Write an equation to represent the
number of months, n, an account has been open if the total cost is $360.





Answers

Answer:

the answer is 22

the equation is 30 + 15n

Step-by-step explanation:

15n as it increases each month and 30 as it never changes and will always be a value of 30

Answer:

15n+30=360

Step-by-step explanation:

$15 per month is being charged

The flat fee is $30

The Total cost is 360

15n+30=360

The first day of Sam's vacation was a Monday.
What was the day of the week on Sam's 36
day of vacation?

Answers

Answer:

I think it was monday also

Answer:

The day of the week on Sam's 36th

day of vacation would be Tuesday.

help please

Make up two equations, one that is true and one that is false. State which equation is true and which is false.

Answers

Answer:

57+20= 90 (false)

40+39= 79 (true)

Answer:

14 * 9(-9) - 8 = 1142               9 - 45(-3) + 7 = 151

Step-by-step explanation:

14 * 9(-9) - 8 = 1142               9 - 45(-3) + 7 = 151

(This one is true)                  (This one is false)

Write the equation of the line , in slope - intercept form , with following information : rate of change: -1 point : (3, - 3)

Answers

Answer:

y = -x

Step-by-step explanation:

Slope-intercept form looks like this: y = mx + b, with m being the slope or rate of change and b being the y-intercept. We already know the rate of change, so we can put -1 as m: y = -1x + b. To find our y-intercept, we can plug the point (3, -3) into the equation and solve for b:

-3 = -1(3) + b

-3 = -3 + b

b = 0

So we have y = -1x + 0. This can be simplified to y = -x.

Which equation does not belong? Explain your reasoning 2x + y = 4 y = -2x + 4 f(x) = -2x + 4 2x + 2y = 4

Answers

Answer:

2x + 2y = 4  does not belong

Step-by-step explanation:

2x + y = 4     → y = -2x + 4

y = -2x + 4    → y = -2x + 4

f(x) = -2x + 4 → y = -2x + 4

2x + 2y = 4   → y = -x + 2

Angle ABC measures 35 and angel BAC meausures 115

Answers

Answer:

a. 115 degrees

b. 35 degrees

c. 30 degrees

Step-by-step explanation:

_
Write 0.34 as a fraction using the steps below.

Answers

Answer:

31/90

Step-by-step explanation:

3.1 x 10 = 31 which is the numerator

9x10 = 90 which would be the denominator

Answer:

It would be 17/50 hope that helps

HELPPPPP I NEEED TO GET A GOOD GRADE OR I'M BUSTEDDDDDDDD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

(MATH)

I WILL GIVE BRAINILEST! PIC DOWN BELOW!!

Answers

Answer:

D) -31

Step-by-step explanation:

use PEMDAS

3^2-(5 x 2^3)

3^2-(5 x 8)

3^2-40

9-40

-31

14)
Tammy uses 6 inches of wire to make a necklace and 3 inches of wire to make a
bracelet. How many necklace and bracelet sets can she make if she uses 28 inches of
wire in all?

Answers

Answer:

3 sets

Step-by-step explanation:

6+3 = 9 inches of wire

28/9 = 3 1/9

so 9 can go into 28 three times

so tammy can make three sets of neclaces and bracelets

Please help me solve questions 10 & 11 (WILL MARK BRAINLY)!!!!!!

Answers

Answer:

10 c 100 b 1000 D 8888 A 2337

ANSWER PLEASE !!!!!!

Answers

Answer:

B= 40 degress

Step-by-step explanation:

1x+ 5xc /3xc = 40

Find the distance from point A(15,−21) to the line 5x+2y = 4 . Round your answer to the nearest tenth.

Answers

Answer:

5.4 units

Step-by-step explanation:

5x + 2y - 4 = 0 and (15, - 21)

d = |(A*Px)+(B*Py)+C| / (sqrt A^ + B^2)

A=5, B=2, C= - 4 and Px=15, Py= -21

d =|(5*15)+(2*-21)+ -4| / (5^2 + 2^2)

= |75-42-4| / sqrt 29

= 29/sqrt 29 = 5.4

If 400 kids went to the amusement park and only 120 came back how many got lost?

Answers

Answer:

280

Step-by-step explanation:

400 - 120=280

280= number of children lost


[tex]-3\log_{3}\left(x-2\right)=-25[/tex]
Thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...........​

Answers

[tex] - 3 log_{3}(x - 2) = - 25 \\ = > log_{3}(x - 2) = \frac{ - 25}{ - 3} \\ = > log_{3}(x - 2) = \frac{25}{3} \\ = > (x - 2) = ( \frac{25}{3} ) ^{3} \\ = > x - 2 = \frac{15625}{27} \\ = > x = \frac{15625}{27} + 2 \\ = > x = \frac{15625 + 54}{27} \\ = > x = \frac{15679}{27} \\ = > x = 5226.33[/tex]

Answer:

5226.33 (approximate value)

Hope you could get an idea from here.

Doubt clarification - use comment section.

when we went shopping I had $15 i lent $5 and spen $8 then borrow $12 from down at the end did I have money in my purse or did I owe money how much​

Answers

You have 14 dollars so you would owe on dollar

Answer:

Step-by-step explanation:

In a circle L, M, N are the points on the circle forming a triangle with LM = LN and mZMLN is 35' then what is m(arc LN)?​

Answers

Answer:

145°

Step-by-step explanation:

ΔLMN is isosceles with angle L being 35°.

Angle  measure of M and N is same:

m∠M = m∠N = 1/2(180 - 35) = 72.5

Arc measure is twice the intercepting angle, since the angle is not central:

mLN = 2*72.5 = 145

Solve: x^3+3x^2+4x=0

Answers

Answer:

x^3 + 3x^2 + 4x = 0

0^3 + 3(0)^2 + 4(0) = 0

Step-by-step explanation:

x = 0

please help with finding the midpoint

Answers

Answer: (-4, -6)

Step-by-step explanation:

Find the middle so find the averages of the x points and the y points

average of -6 and 2 is -4

average of -8 and -4 is -6

the point is (-4, -6)

You have at most $20 to spend at an arcade. Arcade games cost $0.75 each, and snacks cost $2.25 each. Write an inequality that represents the numbers of games (x )you can play and snacks( y) you can buy.
The inequality is ??

Answers

Answer:

y ≤ -1/3x+80/9

Step-by-step explanation:

(1). 0.75(x)+2.25(y) ≤ 20

0.75 - Number of arcade games (X).

2.25 - Number of snacks (Y).

20 - The total.

(2). 0.75x+2.25y≤20

(After multiplying the x's and y's together, with the numbers).  

(3). 0.75x (-0.75x) + 2.25y ≤ 20 (-0.75x)

(Subtract -0.75x to each side, which allows the equation to get closer to the answer).

(4). 2.25y       -0.75x + 20

   ————   =   ————

    2.25            2.25

(Divide by 2.25 to each side).

(5). y ≤ -1/3x + 80/9

(The result and the inequality).

What is one of the distinctions between a population parameter and a sample statis- tic? A. A sample statistic changes each time you try to measure it, but a population parameter remains xed. B. A population parameter changes each time you try to measure it, but a sample statistic remains xed across samples. C. The true value of a sample statistic can never be known but the true value of a population parameter can be known. D. A population parameter is only based on conceptual measurements, but a sam- ple statistic is based on a combination of real and conceptual measurements.

Answers

Answer:

jaiana jsijejeren8sninsun9nsuns

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