Mathematics College

Matrices C and D are shown below.

2

1

0

a

b

-0.4

C= 0 3

4

D=0

-0.2

0.8

0

2

1

O

0.4

-0.6

What values of a and b will make the equation CD = I true?

a=0.5

b=0.1

O a=0.1

b=0.5

a=-0.5

b=-0.1

Submit

Answers

Answer 1

Answer:

it's b

Step-by-step explanation:

hope this helps! :D

Answer 2

Answer:

A

a=0.5

b=0.1

Step-by-step explanation:

edge2021

Related Questions

PLEASE HELP...! IM ON A TIME SPEED CORRECT ANSWER GETS 50 BRAINLIEST POINTS PLS ANSWER CORRECT

Answers

The answer is A.

Have a great day!

Answer:

It is 92 because 80+95+85+92=352 and then to find average you divide by how ever many numbers which in this case is four and it gets you 88

Step-by-step explanation:

I hope that this helps you out..

Russell sold 40 shares of a stock. The value of each share has decreased by $1 since he bought the stock. Express the amount Russell gained or lost as an integer.

Answers

Answer:

Integer = -40

Step-by-step explanation:

40 x -1

= -40

Therefore, -40 is the integer.

help me answer this please

Answers

Answer:

Step-by-step explanation:

1, 3, 4, 5, 2, 6, 7

What is the value of x?

Answers

Answer:

Is x = - 70

Step-by-step explanation:

If its wrong tell me

Express as a trinomial.
(3x - 1)(2x - 10)

Answers

Answer:

6x^2 - 32x + 10

Step-by-step explanation:

I used the FOIL method of factoring. Hope this helps!

3x • 2x = 6x^2
3x • (-10) = -30x
2x •(-1) = -2x
-1 • (-10) = 10

Combine Like Terms:

6x^2-30x-2x+10

Simplify:

6x^2-32x+10

Select all the equations that have 9 as a solution.

Answers

Answer: could I see the equtions pls

Step-by-step explanation:

Answer:

are you going to show the equation?

Step-by-step explanation:


Identify the causes and effects of the Great Depression.
Causes
Effects
| Select 1
[ Select

Select 1
[ Select)
[Select)
[ Select)

Answers

Answer:

causes

1.stock market crash of 1929

2.bank failures

3.reduction in purchasing across the board

4. american economic policy with europe

5. drought condition

Pls help I need a good grade

Answers

Answer:

y=3/2x

Step-by-step explanation:

Slope is 3/2 and starts at the origin.

find the sum of the following 2+4+6+8+.....+30​

Answers

Answer:

50

Step-by-step explanation:

Equation: 2+4+6+8+30

Sum: 50

8+2=10

4+6=10

10+10=20+30=50.

Final answer: 50

2x+22=5x-20, i need help with the steps and the answer. i suck at these :/

Answers

Answer:

x=14

Step-by-step explanation:

2x+22=5x-20

First, subtract 2x from both sides

22=3x-20

Then add 20 to both sides

42=3x

Then divide by 3 to both sides

14=x

Check your answer:

2(14)+22=5(14)-2050=50

Evaluate the expression 4ab; if a = 2 and b = 5

Answers

Answer:

40

Step-by-step explanation:

33 is 5% of what number?

Answers

Answer:

660

Step-by-step explanation:

We know that .05x=33

To solve this just divide by .05

33/.05=660

Answer:

Let the number be x

[tex]5\% \: of \: x = 33 \\ \frac{5}{100} x = 33 \\ x = \frac{33 \times 100}{5} \\ \boxed{x =660}[/tex]

660 is the right answer.

y = x+2
Given x = 1
y =

Answers

Answer:

Y=3

Step-by-step explanation:

y=3 because 1+2 is 3 and your trying to get what y= and since x=1 and since there is already a 2 you just add them

4,320 is divisible by please show your work

Answers

Answer:

The numbers that 4320 is divisible by are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, and 4320.

Step-by-step explanation:

Because if u multiply 1 and 4320, you get 4320

then if you multiply 2 and 2160, you get 4320

and just keep doing that with all of the other numbers

(8a+5b−3)+3(b−3) Simplify

Answers

Answer: 8a+8b−12

Step-by-step explanation: 8a+5b−3+3(b−3)

=8a+5b+−3+(3)(b)+(3)(−3)

=8a+5b+−3+3b+−9

=(8a)+(5b+3b)+(−3+−9)

=8a+8b+−12

8a+8b−12...............

What expression makes the equation true? (Photo found below)

Answers

im pretty sure A is true

answer so I can give you brainliest.

Answers

Answer:

no

Step-by-step explanation:

-7k + 3(-2k + 5)
What’s the answer

Answers

Answer:

if it's asking to simplify the expression: -13k + 15

Step-by-step explanation:

-7k + 3(-2k + 5)

-7k -6k + 15

-13k + 15

Answer:

−13+15

Step-by-step explanation:

Joanne invited 21 friends to her
party. Some of her friends couldn't
attend. She ended up having 16
friends at the party. How many
friends couldn't go to the party?

Answers

5 friends could got to the party
21-16=5

Which statements are true about points A, B, and C? Check all that apply.

Answers

Where are the choices and the points?

Eduardo opened a credit card at a department store with an APR of 22.29% compounded semiannually. What is the APY on this credit card? (2 points) a 44.58% b 11.15% c 23.53% d 49.55%​

Answers

Answer:

The correct option is c. 23.53%.

Step-by-step explanation:

The annual percentage yield (APY) can be calculated using the following formula:

APY = (1 + r / n)^n - 1 .............................. (1)

Where;

APY =  Annual percentage yield = ?

r = Annual percentage rate = 22.29%, or 0.2229

n = Number of compounding period per year = Semiannually = 2

Substituting the values into equation (1), we have:

APY = (1 + 0.2229 / 2)^2 - 1

APY = 0.2353211025, or 23.53211025%

Rounding to 2 decimal places, we have:

APY = 23.53%

Therefore, the correct option is c. 23.53%.

Is 6z-2z+4 and 4+2z-6z equivalent?

Answers

answer: no

explanation:
if simplify the two equations they are not equal
6z - 2z + 4 = 4z + 4
4 + 2z - 6z = 4 - 4z

4z + 4 ≠ 4 - 4z

what is (7g-6)-(-3n-4) help me wit this asap

Answers

Answer:

Step-by-step explanation:

7g-6+3n+4= 7g+3n-2

Hugo is considering buying a scratch-off lottery ticket that costs 3 dollars. If the ticket wins, he can redeem the
ticket for 50 dollars. If the ticket loses, the ticket is worthless. According to the lottery's website, 2% of all
tickets are winners.
Find the expected value of buying a scratch-off lottery ticket.

Answers

Answer: -2

Step-by-step explanation:

Two irregular pentagons are constructed so that every side has a length of 1 unit. Does this necessarily mean that these figures are congruent with one another? Why or why not? Type here to search I​

Answers

Answer:

No, their sides are congruent but their angles may not be congruent.

Step-by-step explanation:

cause im smart

A delivery company has 18 vehicles in its fleet.

It has 8 vans and 10 trucks.

All 18 vehicles are on the road every working day.

The company is reviewing its fuel expenses and therefore

gathers some information about each type of vehicle.

Average distance Average distance

Type of vehicle

travelled ber day (in km) travelled per litre (in km) All the vehicles use the

Van

198

9

same type of fuel at

£1.29 per litre.

Truck

620

6.2

Use this information to work out the total fuel bill for 1 working day.

You must show all your working.

Answers

Answer: £1517.04

Step-by-step explanation:

The fuel expenses for the vans will be calculated as:

Vans:

Since the average distance travelled per day is 198km and the average distance travelled per litre is 9km, the van would use:

= 198/9

= 22 litres

Since there are 8 vans, they'll use:

= 22 × 8 = 176 liters

Trucks:

Since the average distance travelled per day is 620km and the average distance travelled per litre is 6.2km, the truck would use:

= 620/6.2

= 100

Since there are 10 trucks, they'll use:

= 100 × 10 = 1000 liters

The amount of liters for both the van and the truck will be:

= 176 liters + 1000 liters

= 1176 liters

The fuel cost will then be:

= 1176 × 1£1.29

= £1517.04

Find the set of solutions for the equation 2x+5=2x

Answers

Answer:

hope i could help you

Step-by-step explanation:

have a nice day

(x + 2)(x + 3). This yields x = –2, –3.

What is the mean, median, mode, and range of 10,14,15,15,16,22,22,22,24,24,27,31,32,37,40,44.

Answers

Answer:

mean 16.75

median 15.5

mode 13

range 16

Answer:

25.5 is the median, 22 is the mode, 24.7 is the mean and 34 is the range

Step-by-step explanation:

mean is the average, you get this by adding up all the numbers and then dividing the total by the amount of numbers there are.

the median is the number with the middle value, in this case there were 2 medians because the was an even number of numbers so you average the medians

mode is the number the occurs the most out of the whole set. For example in this case all the numbers occurred twice except 22 which occured 3 times

Last is the range which takes the highest number and subtracts it by the lowest number. It's just that simple!

9. BUSINESS For maximum efficiency, a factory must have at least 100 workers, but no more than 200 workers on a
shift. The factory also must manufacture at least 30 units per worker.
a. Let x be the number of workers and let y be the number of units. Write four inequalities expressing the conditions in
the problem given above.
c. List at least 3 possible solutions.
b. Graph the systems of inequalities.

Answers

Answer:

? yes

Step-by-step explanation:

Given f(x) = -x – 4, find f(4).
I need help

Answers

Answer:

f(4) = -8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = -x - 4

f(4) is x = 4

Step 2: Evaluate

Substitute in x:                  f(4) = -4 - 4Subtract:                            f(4) = -8
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