How do I find matrices

Answers

Answer 1
Multiply a by the determinant of the 2×2 matrix that is not in a's row or column.
Likewise for b, and for c.
Sum them up, but remember the minus in front of the b.

Related Questions

A half of a pound of fudge cost$5.72,what is the unit rate per pound

Answers

Answer:

$11.44

Step-by-step explanation:

Since half a pound of fudge costs $5.72, then you just have to multiply by 2

5.72 x 2 = 11.44

So one pound of fudge costs $11.44

Hope this helps :)

Answer:

I think it's $1.39 per ounce.

Step-by-step explanation:

BD bisects LABC. Solve for x and find m2ABC. m_ABD = 4x-2, mZCBD=2x + 6​

Answers

Answer:

i) x = 4°

ii) <ABC = 28°

Step-by-step explanation:

Given that BD bisects <ABC then it is true to say that;

Angle m < ABD=m < CBD

Hence;

4x-2 = 2x +6

4x-2x = 6 +2

2x = 8

x=8/2 = 4

x= 4°

Hence

Angle m< ABD = 4x-2 = 4*4 -2 = 16-2 =14°

Angle m < ABC = 2* 14° = 28°

What is the answer plz?

Answers

Answer:

15$

Step-by-step explanation:

Write y=x^2−6x+4 in vertex form. Then identify the vertex.

Answers

64

Step-by-step explanation:

The CPU of a personal computer has a lifetime that is exponentially distributed with a mean lifetime of six years.
A) What is the probability that the CPU fails within three years? (6 points) (Round your answer to 4 decimal places)
B) Assume that your corporation owned 10 CPUs, and assume that the CPUs fail independently. What is the probability that at least one fails within three years? (8 points) (Round your answer to 4 decimal places)

Answers

Answer: 0.393 ; 0.9933

Step-by-step explanation:

Given that :

Mean lifetime follows an exponential distribution (m) = 6

a. What is the probability that the CPU fails in the next three years?

Using the poisson distribution formula :

1 - e^-λt

λ = 1/m = 1 / 6 = 0.1667

Probability of failure in next 3 years :

P(X < 3) = 1 - e^-λx

P(X < 3) = 1 - e^-0.1667*3

P(X < 3) = (1 - e^-0.5)

P(X < 3) = 1 - 0.6065306

P(X < 3) = 0.3934693

= 0.3935

b. Assume that your corporation has owned 10 CPUs for three years, and assume that the CPUs fail independently. What is the probability that at least one fails within the next three years?

Number of pc owned = 10

CPU failure is indepndent

Probability of atleast one fails :

1 - P(X ≥ 3)^n

P(X ≥ 3) = 1 - P(X < 3)

P(X ≥ 3) = 1 - 0.3935 = 0.607

Hence,

1 - P(X ≥ 3) = 1 - 0.6065^10

1 - P(X ≥ 3) = 1 - 0.0067345

1 - P(X ≥ 3) = 0.993265

= 0.9933

can you please help me with this question ​

Answers

Answer:

the answer would be 1800 feet

slope = 1; y-intercept = -4


Write the linear equation in slope intercept form

Answers

Answer:

y = x - 4

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

m - slope b - y-intercept

Step-by-step explanation:

Step 1: Define

Slope m = 1

y-intercept b = -4

Step 2: Write function

y = x - 4

2++2++2+2+222+22222222222+++222=

Answers

Answer:

thank you thank you thank youuuu:))))) i will make our question now

Step-by-step explanation:

:***

Answer:

umm here is the slide cause i couldnt add it on the other question

Step-by-step explanation:

Which graph represents a function, f(x) that has a slope of 3 units and f(0) = 14?

Answers

Answer:A

Step-by-step explanation:

Since the slope is 3, hence it passes through the point (-4.67, 0). Hence the equation of the line is y = 3x + 14.

A linear equation is in the form:

y = mx + b;

where m is the slope, b is the y intercept and y, x are variables.

Since f(0) = 14, hence the y intercept is 14, hence the graph passes through point (0, 14).

Also, since the slope is 3, hence it passes through the point (-4.67, 0). Hence the equation of the line is y = 3x + 14.

Therefore the graph is attached below.

Find out more at: https://brainly.com/question/13911928

When graphing a linear inequality, the origin can always be used as a test point for determining which side of a
boundary line should be shaded. True or False

Answers

True! Hope this helps :)

Answer: True

Step-by-step explanation:

Please help!!!!!
Richard had a balance of -$322.25 in his account, and Scott had a balance of -$241.75 in his account.


Which statement explains why Richard owes the bank more than Scott?


A. -322.25 > -241.75

B. |-322.25| > |-241.75|

C. |-322.25| < |-241.75|

D. -322.25 < -241.75

Answers

Answer:

B is the answer

Step-by-step explanation:

because Richard owes the bank more than Scott

Answer:

it is B

Step-by-step explanation: I just took the test but i got it wrong so it is B

(Answer is 32) For the inverse variation equation p = 8/V, what is the value of p when V = 1/4 ?

1/32

1/2

2

32 <—— this is the correct answer!

Answers

Answer:

p  = 32

Step-by-step explanation:

Given expression:

             p  = [tex]\frac{8}{v}[/tex]  

Since v = [tex]\frac{1}{4}[/tex]  

Now insert the parameters and solve;

    p  = [tex]\frac{8}{\frac{1}{4} }[/tex]  

    p = 8  ÷  [tex]\frac{1}{4}[/tex]  

     p  = 8 x 4

    p  = 32

Where my Among Us fans at?!

Answers

Right here:)))))))))))))))))

Answer:

here

Step-by-step explanation:

i played it till 3 am once

Based on the given information, which statement best explains whether the quadrilateral is a parallelogram?

Answers

Answer:

It is a parallelogram because it has either two or more sets of parallel lines

write six hundred fifty-eight and twenty-nine thousandths in standard form​

Answers

Answer:

658.029

Step-by-step explanation:

hope this helps  (´▽`ʃ♡ƪ)

did 57urgkg zucfhuiiiiiiiii

A school goes on a field trip to the zoo. They bring 67 people.
Each ticket to the zoo costs $23. ABOUT how much did the school pay
to go to the zoo?

Answers

Answer:

since u said about i assume we round

67 to 70 ppl

23$ to 20$

70x20

1400 they payed around 1400$

accurate answer

67x23

1541$ they payed 1541$ exactly

13. The graph below shows the relationship between the number of hours Cody works and the
amount of money he earns at his job. Which of the following statements is not true about the
relationship?

Answers

Answer:

If Cody works 20 hours, he will earn $150.

Step-by-step explanation:

The graph goes up by 1, 10, meaning if you do 20 times 10 you'll get 200, not 150

Answer:

$160

Step-by-step explanation:

If 3 boxes weigh 10 pounds, how much do 4 boxes weigh?

Answers

Answer:

About 13.32 Pounds

Step-by-step explanation:

First. take the total weight of the three boxes and divide it by the number of boxes.

10/3 = 3.33 and so on

Now we know each box ways 3.33 pounds.

Now multiply 4 boxes by 3.33 pounds.

4 x 3.33 = 13.32

So the answer should be about 13.32 pounds.

Answer:

13.3pounds

Step-by-step explanation:

if 3boxes = 10pounds

4boxes= ?

4×10= 40÷3

13.3pounds

Which value is the solution for this equation
7y - 15 = 27

Answers

Answer:

Y = 7

Step-by-step explanation:

6 = y

Explanation:

7x6 = 42

42-15 = 27

If you don’t believe me open a calculator and do what I just did

Hope I helped ❤️
Plz mark me brainiest? :)

Which pair shows equivalent expressions? Hurry it’s timed

Answers

Answer:

B I'm pretty sure

Step-by-step explanation:

odd number between 20 and 40​

Answers

Answer:

30. i. dftjtuutuldrudtuftuftuftuftjxtuxtul who j t x t j x f h x g xg

which expression is equivalent to 16+2•36?​

Answers

L

Lllnubybybyyvybybybtcrxextvyb

You are negotiating a loan with a bank officer. The loan is at a moderate interest rate, and the term of the loan is six months. The bank officer tells you your monthly payment. Explain how you can quickly check whether or not the figure the bank officer gave you is reasonable. Choose the best answer.


A. Move the decimal point one place to the left. This is a reasonable estimate.

B. Multiply the interest rate by 100 and divide by 6. This should be the approximate amount of the payment.

C. Divide the loan amount by 6. This is the maximum you will be paying.

D. Divide the loan amount by 6. This is the minimum you will be paying.

Answers

Answer:

Step-by-step explanation:

I have this answer too and it's not B or D. So it might be A or C

To figure out if the figure the bank officer gave you is reasonable, divide the loan amount by 6. This is the minimum you will be paying.

According to the question, the tenure of the loan is six months. The borrower is expected to pay back a fraction of the principal and interest each month. This is the maximum amount that the borrower can pay.

The minimum amount that the borrower can pay each month is obtained by dividing the loan amount by six .

Learn more: https://brainly.com/question/11324711

Part A: Under a dilation of scale factor centered at (3,7), PT becomes
RT", Determine the coordinates of R'T" and sketch R'T' on the
graph
Part B: Under a dilation of scale factors centered at (-1,9), PT becomes
LM. Determine the coordinates of LM and sketch TM on the
graph

Answers

9514 1404 393

Answer:

  see below

Step-by-step explanation:

Dilation changes the distance to the center of dilation by a factor equal to the scale factor.

Part A:

Point R is 2 grid squares left and 6 grid squares down from the center of dilation at (3, 7). So, point R' will be (3/2)(2) = 3 grid squares left and (3/2)(6) = 9 grid squares down from that center.

Likewise, point T is 2 square diagonals down and right of (3, 7), so T' will be 1 more square diagonal farther.

__

Part B:

As in Part A, the scale factor multiplies the distance from the center of dilation. L will be the midpoint between R and (-1, 9); M will be the midpoint between T and (-1, 9).

Which equation represents a line with slope 2/3 and y-intercept −6?

2x −3y= 18

3x −2y= 6

3x −2y= 12

2x +3y=−6

Answers

The answer is 2x-3y=18

A television normally sells for $320 this week it’s on sale for 60% off the normal price what is the price of the sale

Answers

Answer:

128 dollars

Step-by-step explanation:

You would multiply 60 (that's the percentage off) by 320 ( the price of the T.V) and then subtract the answer you got from multiplying the two from the original price of the T.v (320)

Hope this helps

write the equation for 30 is 75% of what number show your work​

Answers

Answer:

22.5

Step-by-step explanation:

How do you solve this question?

In order to find this answer, you must multiply the number given (30) by the percentage (75%). 75% is equal to .75. So, if you multiply 30 and 75%, you will get 22.5.

Hope this helps,

Philip

Brainliest always appreciated! <3

An endangered species of fish has a population that is decreasing exponentially (A - Apekt). The population 5 years ago was 1800. Today, only 800 of the
fish are alive. Once the population drops below 100, the situation will be irreversible. When will this happen, according to the model? (Round to the nearest
whole year.)
O 12 years from today
15 years from today
O 14 years from today
O 13 years from today

Answers

Answer:

13 years.

Step-by-step explanation:

I don't understand the original equation you entered, so I'm going to use another one.

[tex]A = A_0e^k^t[/tex]

Where A = initial population

A₀ = current population

e = Euler's constant

k = rate of decrease

t = time in years

Let's start off with what we know.

Today there are 800 fish left:

A₀ = 800

There were 1800 fish 5 years ago:

t = -5

A = 1800

The equation now looks like [tex]1800=800e^-^5^k[/tex]

First we find the rate of decrease.

[tex]\frac{1800}{800} = e^-^5^k[/tex]

⇒ [tex]2.25 = e^-^5^k[/tex]

⇒ [tex]ln(2.25) = -5k[/tex]

⇒[tex]\frac{ln(2.25)}{-5}[/tex]=k

⇒ k = -0.1621

The question asks when it will drop below 100, so make it equal to 100.

⇒[tex]100=800e^-^0^.^1^6^2^1^*^t[/tex]

⇒[tex]100/800=e^-^0^.^1^6^2^1^*^t[/tex]

⇒[tex]ln(1/8)=-0.1621*t[/tex]

⇒[tex]\frac{ln(1/8)}{-0.1621}[/tex] = t = 12.821

To the nearest year this is 13.

Find the slope of the tangent line to f(x) = 2x +3 at
at x = 2.

Answers

The slope is 2 at all points on f(x) since f’x is just 2

what is the square root of 125.3 rounded to the nearest hundredth ?

Answers

Answer:

11.19

Step-by-step explanation:

[tex]\sqrt{125.3} = 11.19374\\[/tex]

The hundreths place is the second digit to the right of the decimal point.

Since the number in the thousandths place is less than 5, the number in the hundreths place will remain as 9.

If the digit in the thousandths place had been 5 or greater, the answer would have been 11.20, as you would round the 9 up, consequently rounding the tenths place as well.

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