All categories

2 years ago

10x - 4y = -4 -3x + 7y = -22 método de Cramer

Mathematics

1 answer:

-BARSIC- [3]2 years ago

6 0

(-2,-4)

Cramer's rule

10x - 4y = -4

-3x + 7y = -22

Main determinant : 58

Determinant of x : -116

Determinant of y : -232

So, (-2,-4)

Hope this helps and please consider marking branliest.

You might be interested in

5 less than a number is equivalent to 1 more than three times the number The number is ??

givi [52]

Answer:

-3

Step-by-step explanation:

Let x equal the mystery number

Our equation will be:

x - 5 = 1 + 3x

Subtract x from both sides

-5 = 1 + 2x

Subtract 1 from both sides

-6 = 2x

Divide both sides by 2

-3 = x

4 0

2 years ago

A box is filled with 7 brown cards, 3 yellow cards, and 8 red cards. A card is chosen at random from the box. What is the probab

Deffense [45]

7 brown, 3 yellow, 8 red...total of 18 cards

there are 15 cards not yellow and a total of 18 cards....so the probability of not picking a yellow card is : 15/18 rounds to 5/6

3 0

2 years ago

algol [13]

Answer:

Step-by-step explanation:

We have the two functions:

$f(x)=\sqrt{x}+12\text{ and } g(x)=2\sqrt{x}$

And we want to find (f-g)(144).

This is the same thing to f(144)-g(144).

So, let’s determine the value of f(144) and g(144) first:

$\begin{aligned} f(144)&=\sqrt{144}+12 \\ &=12+12 \\ &=24\end{aligned}$

And:

$\begin{aligned} g(144)&=2\sqrt{144} \\ &=2(12) \\ &=24 \end{aligned}$

Hence:

$\begin{aligned} (f-g)(144) &= f(144)-g(144) \\ &=24-24 \\ &=0 \end{aligned}$

Our final answer is 0.

6 0

2 years ago

Read 2 more answers

A designer is creating a rug for an oddly-shaped room. His design for the rug is shown below. If each blue square represents 1 s

likoan [24]

Answer:

btw we cant see the image sorry

Step-by-step explanation:

3 0

2 years ago

PLEASE HELP ME FOR A TEST AND SELECT ALL THAT APPLY!!!!!!! 5 STARS!!!!!!!

MAVERICK [17]

Answer: 9-2 & -2-(-9)

Correct me if I'm wrong.

Step-by-step explanation:

5 0

2 years ago