Consider matrix A.
What matrix results from the elementary row operations represented by −2R2+3R1?
Answer:
[tex]A = \left[\begin{array}{ccc}-3&3&2\\-25&-13&0\end{array}\right][/tex]
Step-by-step explanation:
Given the matrix
[tex]A = \left[\begin{array}{ccc}-3&3&2\\8&-1&3\end{array}\right] \\R1 = -3, 5, 2\\R2 = 8, -1, 3\\\\[/tex]
Before we can get the resulting matrix after the elementary operation, we need to get the new second row using the formula −2R2+3R1?
when R1= -3, R2 = 8
−2R2+3R1? = −2(8)+3(-3)
−2(8)+3(-3) = -16-9
−2(8)+3(-3) = -25
R1= 5, R2 = -1
−2R2+3R1? = −2(-1)+3(5)
−2(-1)+3(5) = 2-15
−2(-1)+3(5) = -13
when R1= 2, R2 = 3
−2R2+3R1? = −2(3)+3(2)
−2(3)+3(2) = -6-6
−2(3)+3(2) = 0
Hence the new R2 are -25, -13, 0
The resulting matrix will be:
[tex]A = \left[\begin{array}{ccc}-3&3&2\\-25&-13&0\end{array}\right][/tex]
Answer:
-25 17 0
8 -1 3
Step-by-step explanation:
I need help please i will give brainliest
Answer:
5 packages
Step-by-step explanation:
each would have five if they made 5 sandwhiches
Answer:
5
Step-by-step explanation:
Divide each number until the remainder is one
Multiply the numbers used to divide which is 2 6 and 5 to get the LCM which is 60
Edit:
60 eggs /12 =5
60 muffins/10 =5
I love you the way you are c:
Answer: Be careful on you love
Step-by-step explanation: I got heartbroken
What percent of 123 is 140? *
Answer:
172.2
Step-by-step explanation:
Answer:
113.8%
Step-by-step explanation:
let the unknown percentage be x%
hence we can re-write the given question as a mathematical equation
"What percent of 123 is 140" can be re-written mathematically as:
x% of 123 = 140
x/100 of 123 = 140
( x/100 )123 = 140 (multiply both sides by 100)
x(123) = 140 x 100
x(123) = 14000 (divide both sides by 123)
x = 14000 / 123
x = 113.8%
Write 173,200 in scientific notation.
Answer:
1.73 * 10^5
Step-by-step explanation:
evaluate the square root of x^16
Answer: its going to be x^4
Please help with the question, and if you can please explain how you got the answer. Thank you.
9514 1404 393
Answer:
C. p ∨ q
Step-by-step explanation:
The compound statement is of the form ...
p or q
where ...
p = Memorial day is in July
q = parallel lines intersect
The symbol ∨ is used to represent the disjunction (or).
The symbolic form of the given statement is ...
p ∨ q
__
As it happens, both p and q are false, which means the disjunction is false. That has no bearing on the symbolic representation of it.
_____
∧ represents conjunction (and).
How do you convert pizza into math?
Factor X^2 + 7x + 12
Answer:
(x + 3)(x + 4)
Step-by-step explanation:
(x + 3)(x + 4)
x^2 + 3x + 4x + 12
x^2 + 7x +12
Answer:
(x +3) (x+4)
Step-by-step explanation:
I took the test with this question, I hope this helps!
Which parent functions have a range of (-infinity , infinity) select all that apply
A. a parent even-degree power function
B. a parent odd-degree power function
C. a parent even-degree root function
D. a parent odd-degree root function
E. a parent exponential function with a base greater than 1
F. a parent exponential function with a base between 0 and 1
G. a parent logarithmic function with a base greater than 1
H. a parent logarithmic function with a base between 0 and 1
Answer:b,d,g,h
Step-by-step explanation:
A function assigns the value of each element of one set to the other specific element of another set. The correct option is B, D, G, and H.
What are the domain and range of a function?A function assigns the value of each element of one set to the other specific element of another set.
The domain is the set of values for which the given function is defined.The range is the set of all values which the given function can output.From the given functions the function that has a range of (-∞, ∞) can be found by plotting the graph. Therefore, the parent function that has a range of (-∞, ∞) are:
B. a parent odd-degree power function
D. a parent odd-degree root function
G. a parent logarithmic function with a base greater than 1
H. a parent logarithmic function with a base between 0 and 1
Hence, the correct option is B, D, G, and H.
Learn more about appropriate domain here:
https://brainly.com/question/20073127
#SPJ2
HELP ME ASAP!!
How many ways can four freshmen be chosen from eighteen to be members of the leadership board?
Answer:
trying your best I would say
hope this helps
3 /10 4/ 8 which one is bigger?
Answer:
4/8
Step-by-step explanation:
3/10 is 0.30 and 4/8 is 0.5
gabrielle found a recipe that uses 5/6 cups of milk. If she only wanted to make half of the recipe how many cups of milk should she use
f(x) = x2
g(x) = (x – 6)
We can think of g as a translated (shifted) version of f.
To get function g , shift f right by 6 units.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Answer:
Right by 6 units
Step-by-step explanation:
Solve. 3(x-2)+17=2(x+7)
Answer:
3
Step-by-step explanation:
3x-6+17=2x+14
3x+11=2x+14
x=3
Select two fractions equivalent to 3/5
Answer:
6/10
And 9/15
Step-by-step explanation:
Graph y= -2x + 5. Help please.
Answer y intercept is 5, then move 2 units down from 5, then 1 unit to the right which is now (1, 3). So jus keep moving 2 units down and 1 unit to the right.
Assume a tax rate of 6.2% on $128,400 for Social Security and 1.45% for Medicare. No one will reach the maximum for FICA. Complete the following payroll register. (Use the percentage method to calculate FIT for this weekly period
Marital status - m
Allowance claimed – 4
Gross pay - $,2800
FIT
Social Security
Medicare
Net pay
Answer:
FIT: $340.76 (see comment)OASDI: $173.60Medicare: $40.60Net Pay: $2245.04Step-by-step explanation:
In addition to the information given in the problem statement, we need to know the applicable tax rates and allowance deductions. If we assume the tables we found (attachments 1 and 2) are the same as those in your text, the one additional fact needed is the gross pay to date. At the given wage rate, paychecks after the 44th week will have reduced FICA tax deductions.
Allowances: 4 × $79.80 = $319.20
Adjusted gross pay for FIT: $2800 -319.20 ≈ $2481 (rounded to nearest $)*
FIT: 0.22 × (2481 -1711) +171.36 = 0.22×2481 -205.06 = 340.76
Social Security & Medicare: 0.0765 × 2800 = 214.20
Net pay = $2800 -340.76 -214.20 = $2245.04
_____
* Comment on rounding
The IRS gives the option of rounding the pay or the tax, as long as it is consistently done. Here, the amount of tax on the unrounded gross pay would be 4 cents less: 340.72. The option of reducing the last digit of pay to zero is also offered. FIT on 2480 would be 340.54.
What is the slope of the line that passes through points (-3,5) and (11, 5)?
a-2=3+6a/3
What’s the value of a?
[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Linear Algebra
a-2= 3+6a/3
=> 3(a-2)= 3+6a
=> 3a-6= 3+6a
=> -6-3=6a-3a
=> -9=3a
hence, a=-3
Annie bakes cookies and cupcakes in a ratio of 2 to 7 for her gift boxes. Her school needs 36 desserts to sell in a bake sale. How many cupcakes will she bake? How many cookies will she bake ?
Let's say cookies are 2x. If there are 2x cookies then there are 7x cupcakes. Now, 2x cookies + 7x cupcakes = 36 desserts.
9x = 36
So, x = 4
Now, remember that cookies = 2x. 2x = 2 times 4 = 8.
She will bake 8 cookies.
Find the quotient.
5,400 / 90
Answer:
5,400 ÷ 90 = 60
Step-by-step explanation:
hope it helps!
wich graph and equation shows a proportional relation ship between x and y
1. y= 2.5 - 1.5
2. y= x= 1.5
3. y= 0.45x
4. y= 4.5
Answer: y=0.45x is the answer.
Step-by-step explanation:
PLEASE HELP
ILL GIVE BRAINLIEST
Answer:
4x times 5 k
Step-by-step explanation:
Mrs. Lodge is having new floor tiles installed in her kitchen. She is paying the flooring company $170.25 for the tiles and an installation fee of $3.78 per square foot. She receives a total bill of $586.05 for the job. Which equation could be used to find the number of square feet (x) of tile Mrs. Lodge is having installed?
What’s the answer to this
What is the length of AB?
A. 2
B. 6
C. 8
D. 4
Answer:
maybe ; the length of ab is 6
Evaluate 4
M-n if m= -7 and n = 2.
Answer:
-9
Step-by-step explanation:
3) For the ordered pairs given in the table, is the relation a function?
X
0,1,2,1 Y4,2,6,5
Answer:
Relation
Step-by-step explanation:
The domains, 0,1,2,1 repeat! (the 1's repeat twice:)
No it is not a function.
In the x-values there are two ones. Therefore it cannot be a function.
what is 1232 dived by 77 ? please show work
Answer:
16 is ur answer
Step-by-step explanation:
1. open calculator
2. write 1232/77
3. get 16