3 years ago

Solve the following system of equations by using the inverse of a matrix.

Mathematics

1 answer:

Zepler [3.9K]3 years ago

6 0

Answer:

(x, y, z) = (-8,4,-2)

Step-by-step explanation:

.......................................

You might be interested in

Question 2

SCORPION-xisa [38]

Where are the choices

4 0

3 years ago

Read the following description of a

Annette [7]

Answer:

$\sf a = \boxed{\bf 1} \ n+ \boxed{\bf 3}$

Explanation:

$\sf \underline{rate} \ = \ \sf \dfrac{y_2-y_1}{x_2-x_1} \ = \ \dfrac{rise}{run} \ = \ \dfrac{11-10}{8-7} \ = \ \underline{1}$

Equation:

$\Rightarrow \sf a - a1 = m(n - n1)$

$\Rightarrow \sf a - 10 = 1(n -7)$

$\Rightarrow \sf a = n - 7 + 10$

$\Rightarrow \sf a = n + 3$

3 0

1 year ago

Each pound of fruit costs $4. Write an expression that shows the total cost of fruit use the variable you identified in the ques

Gnesinka [82]

The expression would be j • $4

5 0

3 years ago

Read 2 more answers

Cassie has $20,000 in a savings account. The interest rate is 4% per year and is not compounded. How much interest will she lear

Mariulka [41]

Answer:

$24,000

Step-by-step explanation:

4 0

3 years ago

3/7 =9/x solve the following proportions ( they are fractions) thanks!

tresset_1 [31]

3/7 = 9/x
cross multiply because thats how u solve proportions
(3)(x) = (7)(9)
3x = 63
x = 63/3
x = 21

and if u will notice : 3/7 and 9/21 ....9/21 reduces to 3/7....so these are equivalent fractions...because proportions are nothing but equivalent fractions

6 0

3 years ago