subject
Mathematics, 02.02.2020 11:45 cherry12345627

Use cramer’s rule to solve for x: x + 4y − z = −14 5x + 6y + 3z = 4 −2x + 7y + 2z = −17
a=
ax=
a= -240, -120, 120, 240.
ax= -240, -120, 120, 240.
x=

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:00, ddoherty88
How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?
Answers: 1
image
Mathematics, 21.06.2019 18:00, ahmedislife
Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =
Answers: 2
image
Mathematics, 21.06.2019 19:10, iziyahh902
How many solutions does the nonlinear system of equations graphed below have?
Answers: 2
image
Mathematics, 21.06.2019 19:30, Flaka2809
Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours
Answers: 1
You know the right answer?
Use cramer’s rule to solve for x: x + 4y − z = −14 5x + 6y + 3z = 4 −2x + 7y + 2z = −17
a=

Questions in other subjects:

Konu
Mathematics, 10.01.2021 04:50