what is cramers rule.

Answers

Answer 1

Cramer's Rule is a method that uses determinants to solve systems of equations that have the same number of equations as variables

Answer 2

Answer:

it is a method that uses determinants to solve systems of equations that have the same number.

Step-by-step explanation:

hope this helps


Related Questions

Reduce this question to lowest terms 4/5 divided by 16/15

Answers

i found 3/4 but am not that sure if it's correct

Is 87 + 53 positive or negative?

Answers

Answer:

Positive

Step-by-step explanation:

Two positive numbers when adding equal a positive.

87 + 53 = 140 So Positive.

Hope this helped.

Answer:

This is Positive

Step-by-step explanation:

The Answer is positive because its just normal adding

Hope i could help

PLEASE HELP, DUE AT 12

Answers

Answer:

m<B = 28

Step-by-step explanation:

1. 2x+17=45

       -17  -17

2. 2x=28

/2      /2

3. x=14

4. B=2(14)

2. B=28

Please help I’ll
Give you brainiest!!!!

Answers

Answer:

A-(1,0),(0,2),B-78

Step-by-step explanation:

-4y+20=-x solve for y

Answers

Answer:

y = x/4 + 5

Step-by-step explanation:

Solve for y:

20 - 4 y = -x

Hint: | Isolate terms with y to the left-hand side.

Subtract 20 from both sides:

-4 y = -x - 20

Hint: | Solve for y.

Divide both sides by -4:

Answer: y = x/4 + 5

Answer:

y=1/4x+5

Step-by-step explanation:

Chester Boles reviewed his credit card's monthly statement. It shows a $2,376.10 previous balance and this month's new purchases of $875.22, $65.75, $45.22, and $21.23. It also shows a $875.22 credit and a $45.30 finance charge. He also made the minimum payment of 2.5% of the previous balance. What is the new balance?

Answers

The new balance after considering the new purchases, credits, finance charge, and minimum payment is $2,494.20.

Here,

To calculate Chester Boles' new credit card balance, we need to take into account the previous balance, new purchases, credits, and finance charge, as well as the minimum payment.

Add up the new purchases:

$875.22 + $65.75 + $45.22 + $21.23 = $1007.42

Add up the credits:

$875.22 (credit)

Calculate the total balance before the finance charge:

Previous Balance + New Purchases - Credits

$2,376.10 + $1007.42 - $875.22 = $2,508.30

Add the finance charge:

Total Balance + Finance Charge

$2,508.30 + $45.30 = $2,553.60

Calculate the minimum payment:

2.5% of the previous balance:

2.5% * $2,376.10 = $59.40

Subtract the minimum payment from the total balance:

$2,553.60 - $59.40 = $2,494.20

The new balance after considering the new purchases, credits, finance charge, and minimum payment is $2,494.20.

To earn more on addition click:

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Solve for the letter a. bc=ad

Answers

Answer:

the answer is bc/d

Step-by-step explanation:

please give me brainlest

Tyra buys 14 gallons of gas for 35$ how could she figure out how much 1 gallon of gas cost her

Answers

Answer: 2.50

Step-by-step explanation: you would divide the cost by the amount so 35 divided by 14.

Where is the answer to the expression 5 - 9 located on a horizontal number line?
O 9 units to the left of 5
09 units to the right of 5
4 units to the right of 5
4 units to the left of 5

Answers

Answer:

A 09 units to the left of 5.

Step-by-step explanation:

The reason this is the answer is because going left on the number line signifies subtraction (down) and with 5 being your starting number you would be going down (left) the number line by 9

given m ll n find the value of x

Answers

Answer:

35 degrees

Step-by-step explanation:

Since m || n, you can know that the angle 145 is corresponding to the to the other angle on top. After that, you use the supplementary angle formula and x is 180-145=35 degrees

what is the answer to 3n+16=7n

Answers

N = 4.
I’m not sure if that was what you were asking though.
Subtract 3n from 7n then you get 4n then divide 4n from 16 then n=4

Help plzzzzz????????????

Answers

Answer:

U should start cooking at 11:39

Step-by-step explanation:

It would take 5 hours and 6 minutes to cook all of the ham

Round 3.44 to the nearest whole number.

Answers

Answer:

3.44 rounded to the nearest whole number is 3

Parker has saved $1,200 for him and his
wife to go to an all-inclusive island resort.
He decides to take out a $1,000 simple
annual interest loan at 4.5% for 1 year
and stay in a suite. Is Parker being
financially responsible or financially
irresponsible? What is the monetary value
of his benefit or cost?

Answers

Answer:

I mean I think he is because the interest is less now, I still think it's irresponsible to take from his savings but ¯\_(ツ)_/¯

XY = 4x + 7 and YZ = 8x – 1 whats XZ

Answers

Answer:

12x + 6

Step-by-step explanation:

Given

XY = 4x + 7 and YZ = 8x – 1 XZ = ?

As per angle addition postulate

XZ = XY + YZXZ = 4x + 7 + 8x - 1 XZ = 12x + 6

Use the equation z = n - 7 to find the value of z when n
9.
Z =

Answers

Answer:

[tex]z=2[/tex]

Step-by-step explanation:

[tex]z=n-7[/tex]

In this case, I'm assuming that you're trying to say that n = 9.

1. Substitute in 9 for n

[tex]z = (9)-7[/tex]

2. Combine like terms

[tex]z=9-7\\z=2[/tex]

What is the slope for this scenario?
Population of Olde Town
y
10000
O -500
8000
O-250
O
6000
Number of People
O 200
4000
2000
10
24
Time (years after 2000)

Answers

Answer:

Step-by-step explanation:

The answer is b -250

Please help!!! I will mark Brainliest

Answers

Answer:

it would be A

Step-by-step explanation:

10 – 2(3x – 1) > 6x + 10


Pls solve with steps and explain

Answers

Answer:

x < 1/6

Step-by-step explanation:

In the equation 10 – 2(3x – 1) > 6x + 10, start by using the distributive property. Once you've done that, you'd now get 10-6x+2 > 6x+10.

Now, add 10 and 2 togther to get -6x+12 > 6x+10.

Subtract 6x to both sides and subtract 12 to both sides and now you'll get

-12x > -2.

Now, divide each side by -12 to get x < 2/12 or 1/6. Notice how the sign is flipped since you divided by a -.

10-2(3x-1)>6x+10
10-6x+2 > 6x+10
10+2> 12x+10
12> 12x+10
2> 12x
1/6>x

X is less than 1/6

In one study, researchers at a clinic looked at more than 120,000 patients enrolled in 14 international studies in the past 10 years. Among the patients with heart problems, researchers found at least one risk factor in 84.7% of the women and 80.7% of the men. If a woman is selected at random from the women with heart problems, what is the probability she has none of the risk factors? Write your answer as a percentage. % If a man is selected at random from the men with heart problems, what is the probability he has none of the risk factors? Write your answer as a percentage. %

Answers

Answer:

The probability she has none of the risk factors  [tex]P(N) =  15.3 \%[/tex]

The probability he has none of the risk factors [tex]P(M) =  19.3 \%[/tex]  

Step-by-step explanation:

From the question we are told that

    The  number of patients enrolled is  n  =  120,000

    The  number of international  studies is  N  =  14

    The  number of years is  y  =  10 years

    The risk  factor for  women  is  r = 84.7%

     The  risk factor for men is  R =  80.7%

     

Generally the probability that she has none of the risk factors is mathematically represented as

     [tex]P(N) =  100 - r)\%[/tex]

=>    [tex]P(N) =  100 - 84.7)\%[/tex]

=>    [tex]P(N) =  15.3 \%[/tex]  

Generally the probability that he has none of the risk factors is mathematically represented as

          [tex]P(M) =  100 - R)\%[/tex]

=>    [tex]P(M) =  100 -  80.7)\%[/tex]

=>    [tex]P(M) =  19.3 \%[/tex]  

     

PLEASE HELP
Talia begins at city and drives to city Q. She then drives to city S.
Which of the following should be included on the grid to represent
Talia's trip?
1 of 7 QUESTIONS
RS
RQ and Qs
RQ and QS
RQ and QS
Hos Terms Privacy Policy

Answers

I would say that it would be the third option

How many compounds are in the glucose chemical formula?

Answers

Answer:6 I believe. Not sure but I’m also pretty sure it’s 6

Step-by-step explanation:

Answer:

3 compounds. I could be wrong.

Triangle X Y Z is shown. Angle X Z Y is a right angle. The length of Z X is b, the length of Z Y is a, and the length of hypotenuse X Y is c.
Given right triangle XYZ, which correctly describes the locations of the sides in relation to ∠Y?

a is opposite, b is adjacent, c is the hypotenuse
a is the hypotenuse, b is opposite, c is adjacent
a is adjacent, b is the hypotenuse, c is opposite
a is adjacent, b is opposite, c is the hypotenuse

Answers

Answer:

C. A is adjacent, B is opposite, C is the hypotenuse

The locations of the sides in relation to ∠Y are that a is adjacent, b is opposite, and c is the hypotenuse. The correct answer would be an option (D).

What is the right triangle?

A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.

In the right triangle XYZ we have

The legs are represented by sides a and b, whereas the hypotenuse is represented by side c. (the greater side)

Angle Y's adjacent side is side a, while angle X's opposite side is side b.

Side b is the opposing side of angle Y and next to angle X.

The hypotenuse is represented by side c.

Because the angles X and Y are complementary, their total equals 90 degrees.

Therefore, we can conclude that a is adjacent, b is opposite, and c is the hypotenuse.

Hence, the correct answer would be an option (D).

Learn more about Trigonometric functions here:

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The question seems to be incomplete the missing figure has been attached below.

The attendance at a community block party was 3 children for every 2
adults. Which could be the number of children and adults at the block
party?

Answers

Answer:

you didnt give us multiple choice, so we dont know

Step-by-step explanation:

Find the sum of 7/13 and 11/26

Answers

Answer:

25/26

Step-by-step explanation:

7/13 = 14/26 + 11/26 = 25/26

(2/2 x 7/13)

HELP I NEED HELP ASAP

Answers

Answer:

your answer is y=-2x+3

h(x)=x^2 - 2 what is h(3)

Answers

Answer:

7

Step-by-step explanation:

x^2-2      x=3

Substitute the x to 3 and use Gema and/or Pemdas

3^2= 9

9-2= 7

Final answer: 7

I really need help on this!!

Answers

Answer:

D

Step-by-step explanation:

It's kind of grainy, but what I can see is that D. has a constant proportionality of up 4 over one to each point. So the slope would be 4.

It’s D (had it on a test)

Need help please, 30 points: Rewrite the expression with a rational exponent as a radical expression. five to the three fourths power all raised to the two thirds power the cube root of five squared the twelfth root of five the square root of five the cube root of five the fourth power

Answers

Correct arrangement of the question is;

Rewrite the rational exponent as a radical: five to the three fourths power all raised to the two thirds power

A) the cube root of 5 squared

B) the twelfth root of 5

C) the square root of 5

D) the cube root of 5 the fourth power

Answer:

Option C) the square root of 5

Step-by-step explanation:

We are given: five to the three fourths power all raised to the two thirds power

Translating that statement means 5 is raised to ¾ raised to ⅔.

In indices, when we have two powers attached to a number, the two powers will multiply each other.

Thus, 5 is raised to; ⅔ × ¾ = 2/4 = ½

Thus, 5 is raised to power ½.

Now, when a number is raised to the power ½, it is said to be square root of that number.

Thus, the right answer is square root of five.

A science club at Emily’s middle school has 25 members. Only 40% of the members attended Saturday meetings. What is the number of members that attended the Saturday meetings?

A. 6

B. 9

C. 10

D. 15

(Will give brainliest and a heart)

Answers

I’m pretty sure the answer is 15

lol i’m using this app to check my work

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