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mart [117]
3 years ago
10

What's another way to do this cuz I'm SAD rn cuz I got a virus on my computer

Mathematics
2 answers:
emmainna [20.7K]3 years ago
3 0
You need to add them all.
Valentin [98]3 years ago
3 0
First, you would do 4 - 3.  (4 - 3 = 1)
Next, you would do 1 x 5.  (1 x 5 = 5)
Finally, you would do 2 + 5. (2 + 5 = 7)

Hopefully this helps!
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Question 1 (5 points): Consider the system of linear equations x1 − 4x2 − x4 = −7 x2 − 2x4 = 3 x4 + 2x5 = 3 (a) Write down the c
Alika [10]

Answer:

Step-by-step explanation:

Given is a system of equations as

x1-4x2 - x4 = -7\\ \\x2 - 2x4 = 3 \\\\x4 + 2x5 = 3

We have 5 variables and 3 equations

a) coefficient matrix of this system is

1   -4   0   -1   0\\

0    1   0   -2   0\\

0    0   0    1    2\\

We find that x3 has no coefficient in any of the equations so we can omit x3 and write as equations for 4 variables as

1   -4     -1   0\\

0    1     -2   0\\

0    0     1    2\\

b) Augmented matrix is

1   -4     -1   0\\  7

0    1     -2   0\\ 3

0    0     1    2\\3

c) For row operations to ehelon form

we can do R1+4R2 = R1

We get

1   0   -9  0 \\  19

0   1  -2   0 \\   3

0   0   1   2  \\   3

Now let us do R1 = R1+9R3 and R2 = R2+2R3

1  0   0   0  \\ 46

0  1   0   0   \\  9

0   0  1   2   \\  3

d) We find that there are infinite solutions to  the system in parametric form, since x4 and x5 are linked with only one equation

e) x1 = 46, x2 = 9, x4+2x5 =3

Or x1 =46, x2 =9, x4 = 3-2x5, x5 = x5 is the parametric solution

 

8 0
3 years ago
What is the area of the parallelogram?
Ulleksa [173]

The area of a parallelogram is denoted by b * h, where b is the base and h is the height.

In this case, the b is 15 inches, and the h is 4 inches. Multiply these together and you get: 15 * 4 = 60 square inches.

6 0
3 years ago
The cost y (in dollars ) to spend an evening bowling is proportional to the number of games x that are bowled. it costs $16 to b
Liono4ka [1.6K]

Answer:

if the question is write an equation to find the total cost of a night of bowling then the answer is

y=16x

y=16(4)

y=64$

Step-by-step explanation:

6 0
3 years ago
PLZ HELP ASAPPPPPP find the rate of change from the points 5,24 and 36,7.5
Licemer1 [7]
Y₂-y₁ ÷x₂-x₁ =

(7.5 - 24) ÷ (36-5) =

-16.5 ÷ 31 = -16.5/31 ≈ -0.5322480

Or as a fraction: -33/62
7 0
3 years ago
How does one deal with inequalities again?
postnew [5]
You put the numbers you want to compare in a line with a space in the middle. the put
>
if the left is bigger and
<
if the right side is bigger.
4 0
2 years ago
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