Answer:
9 is an extraneous solution.
Step-by-step explanation:
one-third of a number, n, minus 7
ALGEBRAIC EXPRESSION
ASAP ASAP ASAP
Answer:
[tex] \frac{n}{3} - 7[/tex]
Step-by-step explanation:
The comma is important here, otherwise "one third of a number n minus 7" is
[tex] \frac{n - 7}{3} [/tex]
The algebraic expression represents “one-third of a number, n, minus 7
” could be; 1/3n - 7.
What is an expression?Expression in mathematics is defined as the collection of numbers variables and functions by using signs like , subtraction, addition, multiplication, and division.
The Numbers constants, variables, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols.
We are given that “one-third of a number, n, minus 7”
Therefore, the number n and 7 then it can be written as
1/3n - 7
The algebraic expression represents the statement is 1/3n - 7.
To know more about an expression follow;
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There were some zombies in the kitchen, however, the lunch lady was able to eliminate 5 zombies. There are now 12 zombies in the kitchen. How many zombies were in kitchen before the lunch lady took care of a few? J K L 60 8 17
According to the graph, what is the solution (ordered pair) of this system of equations?
Answers:
(2, -3) and (3, -3)
==================================================
Work Shown:
Since f(x) = -3, we'll replace f(x) with -3 and solve for x
f(x) = x^2 - 5x + 3
-3 = x^2 - 5x + 3 .... f(x) replaced with -3
0 = x^2 - 5x + 3 + 3 ... adding 3 to both sides
0 = x^2 - 5x + 6
x^2 - 5x + 6 = 0
(x - 3)(x - 2) = 0 .... factor; you can also apply the quadratic formula
x-3=0 or x-2=0
x = 3 or x = 2
So that explains where that '2' comes from when they listed (2, ?)
-------------
To find what replaces the question mark, we will plug x = 2 into the function
f(x) = x^2 - 5x + 3
f(2) = 2^2 - 5(2) + 3
f(2) = 4 - 10 + 3
f(2) = -3
We could have skipped this portion and said that the solution is (2,-3) but plugging x = 2 into the function to get the output y = -3 helps confirm that x = 2 is one of the x solutions.
-------------
Let's do the same for x = 3
f(x) = x^2 - 5x + 3
f(3) = 3^2 - 5(3) + 3
f(3) = 9 - 15 + 3
f(3) = -3
We end up with the same output, so x = 3 is confirmed as well.
The graph below visually helps reinforce these confirmations. Each solution is an intersection between the two curves.
Answer:
cool
Step-by-step explanation:
I'm not sure I'm just getting points
I need this asap ty:p
Which of the following equations are equations of a direct variation? Choose all that apply.
(a) x=−2y
(b) x+2y=12
(c) 3x−2y=0
(d) 5x^2+y=0
(e) y =0.3x +1.6
(f) y−2=x
Answer:
(a) x = -2y
(c) 3x - 2y = 0
Step-by-step explanation:
You can tell if an equation is a direct variation equation if it can be written in the format y = kx.
Note that there is no addition and subtraction in this equation.
Let's put these equations in the form y = kx.
(a) x = -2y
y = x/-2 → y = -1/2x This is equivalent to multiplying x by -1/2, so this is an example of direct variation.(b) x + 2y = 12
2y = 12 - x y = 6 - 1/2x This is not in the form y = kx since we are adding 6 to -1/2x. Therefore, this is NOT an example of direct variation.(c) 3x - 2y = 0
-2y = -3x y = 3/2x This follows the format of y = kx, so it is an example of direct variation.(d) 5x² + y = 0
y = -5x²This is not in the form of y = kx, so it is NOT an example of direct variation.(e) y = 0.3x + 1.6
1.6 is being added to 0.3x, so it is NOT an example of direct variation.(f) y - 2 = x
y = x + 2 2 is being added to x, so it is NOT an example of direct variation.The following equations are examples of direct variation:
x = -2y 3x - 2y = 0Answer:
(a) x = -2y
(c) 3x - 2y = 0
Step-by-step explanation:
You can tell if an equation is a direct variation equation if it can be written in the format y = kx.
Note that there is no addition and subtraction in this equation.
Let's put these equations in the form y = kx.
(a) x = -2y
y = x/-2 → y = -1/2x
This is equivalent to multiplying x by -1/2, so this is an example of direct variation.
(b) x + 2y = 12
2y = 12 - x
y = 6 - 1/2x
This is not in the form y = kx since we are adding 6 to -1/2x. Therefore, this is NOT an example of direct variation.
(c) 3x - 2y = 0
-2y = -3x
y = 3/2x
This follows the format of y = kx, so it is an example of direct variation.
(d) 5x² + y = 0
y = -5x²
This is not in the form of y = kx, so it is NOT an example of direct variation.
(e) y = 0.3x + 1.6
1.6 is being added to 0.3x, so it is NOT an example of direct variation.
(f) y - 2 = x
y = x + 2
2 is being added to x, so it is NOT an example of direct variation.
The following equations are examples of direct variation:
x = -2y
3x - 2y = 0
If an object has a mass of 450 kg and is moving at 15 m/s, What is that object's momentum?
[tex]p=mv=450\mathrm{kg}\cdot15\mathrm{\frac{m}{s}}=6750\mathrm{\frac{kgm}{s}}[/tex].
Hope this helps.
Members of a baseball team raised $1141.75 to go to a tournament. They rented a bus
for $880.50 and budgeted $23.75 per player for meals. Determine the number of
players the team can bring to the tournament.
Answer:11 players
Step-by-step explanation:
Find the value of X below
52° is your answer
Hope it helps
I need help please help with this question I will give brainliest this is a major grade so no joking around please
Answer:
A
Step-by-step explanation:
The transformation that describes reflection over the x-axis is (x,-y)
answer for brainliest
Answer:
A = 452.16
Step-by-step explanation:
A = 1/4 x 3.14 x d^2
Answer:
75.36
Step-by-step explanation:
did math
[tex](m{}^{2})(m {}^{?}) = m {}^{5} [/tex]
What is the answer for - ?
Answer:
5/2
Step-by-step explanation:
[tex](m^{2})(m^{?}) = m^{5}\\ m^{2*?} = m^{5}\\m^{2*5/2} = m^{5}\\(m^{2})(m^{5/2}) = m^{5}[/tex]
Does anyone know what the answer is?
The sum of a number and negative six is greater than 9
Answer:
x
−
6
Step-by-step explanation:
"Six less than.." means "Subtract 6 from".
Do not confuse this with "Six less..." which means "Subtract from 6".
Confusing, I know.
We know that "Double a number" means
2
x
, where
x
is your mystery number.
Therefore, we have:
2
x
−
6
, which translates to "6 less than 2x" or "6 less than twice a number"
please help!
both questions
i have 5 minuets please answer (image included)
Answer:
The second one !!
Step-by-step explanation:
You always start from the origin... (0, 0) !! From the bottom of that function, from the origin, you would move to the right 1, down 4 in order to get where the graph is in the picture !!
i hope this made sense... have a good day !
can anyone solve this?
6x^3 + 4x^2 - 10x
The answer is,
[tex]2x(3x + 5)(x - 1)[/tex]
sorry if wrong.
HELP PLEASEEEE
Tammy has a rectangular rug with an area of 21 square feet. The rug is 4 feet longer than it is wide. Which equation can be used to determine the length and the width of the rug?
A.
21 = 4w^2
B.
21 = w^2 + 4w
C.
21 = w^2 – 4w
D.
21 = w^2 + 4
Answer:
D
Step-by-step explanation:
The equation to determine the length and width of the rug is 21 = w² + 4w.
What is Rectangle?A rectangle is a four sided figure with opposite sides are equal .
Area of a rectangle = Length x width
Given that A rectangular rug with an area of 21 square feet.
The rug is 4 feet longer than it is wide.
Let 'l " be the length of the rug and 'w' be the width of the rug
Length is 4 feet longer than its width
l = w + 4
Area is 21 square feet.
Area = l x w
21 = (w + 4)w
21 = w² + 4w
The equation to determine the length and width of the rug is 21 = w² + 4w.
So width is 3 ft
Length = w +4
length = 3+4= 7 feet
Thus Length of the rug is 7 feet
Length of rug = 7 feet
width of the rug = 4 feet
Learn more information about ' Area of rectangle ' here;
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Find the slope (4,-1) (-2,6)
Answer:
7/-6
Step-by-step explanation:
y2-y1/x2-x1
6--1/-2-4
6+1/-2-4
7/-6
Hope This Helps!!
Which choice is equivalent to the expression below? √27 - √12 + √48
A. 29√3
B. 9√3
c. 21√3
D. 5√3
Answer:
D
Step-by-step explanation:
Using the rule of radicals
[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]
Simplifying each radical
[tex]\sqrt{27}[/tex]
= [tex]\sqrt{9(3)}[/tex] = [tex]\sqrt{9}[/tex] × [tex]\sqrt{3}[/tex] = 3[tex]\sqrt{3}[/tex]
[tex]\sqrt{12}[/tex]
= [tex]\sqrt{4(3)}[/tex] = [tex]\sqrt{4}[/tex] × [tex]\sqrt{3}[/tex] = 2[tex]\sqrt{3}[/tex]
[tex]\sqrt{48}[/tex]
= [tex]\sqrt{16(3)}[/tex] = [tex]\sqrt{16}[/tex] × [tex]\sqrt{3}[/tex] = 4[tex]\sqrt{3}[/tex]
Then
3[tex]\sqrt{3}[/tex] - 2[tex]\sqrt{3}[/tex] + 4[tex]\sqrt{3}[/tex]
= 5[tex]\sqrt{3}[/tex] → D
lee has 14 blueberry scones and 35 raspberry scones. He wants to make as many identical bags of scones as possible. Each bag should have an equal number of blueberry scones and an equal number of raspberry scones. What is the greatest number of bags Lee can fill?
Answer:
7 is the greatest number of bags Jason can fill.
Step-by-step explanation:
Given: Jason has 14 raspberry scones and 35 blackberry scones.
Solve the system of equations by substitution. Show all work neatly on your work page. Checking your answer is wise.
3x + 2y = 7
y = -3x +11
Answer:
15
Step-by-step explanation:
3x + 2y = 7
y = -3x +11
James is practicing proving geometric theorems. He writes the statements needed for the proof below in different boxes and mixes them up so they are not
Answer:
ao first you yoinl doink
Step-by-step explanation:
yoink if yoink is doink and doink is moink than fonk wonk is ey yo on the eebo
If 1+ 6/x = -5, then x =
Answer:
-1
Step-by-step explanation:
1 + 6/-1 = 15
need help to solve x²=256
Below are four cube roots. The cube root of a number is the factor we multiply by itself three times to get that number. For each cube root below, state between which two numbers does the cube root lie.
∛5
∛23
∛81
∛99
Your answer:
john picks numbers at random. 10 5 5 3 7 9. what is the probability he picked an even number?
Answer:
1/6 probability
Step-by-step explanation:
He only got one even number out of 6 attempts, so its a one in six 1/6.
PLEASE PLEASE HELP ME!!
Answer:
C. BC ≅ EC
hopes this helps :)
Answer:
Line AC is congruent to line DC (top answer)
Step-by-step explanation:
If a point is a midpoint of a line, then each half of the line (AC and DC in this case) is equal
Find the domain when f (x) = 5.
х
-5
-1
9
4
5
8
f(x) -6
-6 | 0
Answer:
Pues la función de 5 seria 4 porque si te fijas en la X es (4)
If your phone cord is wrapped up in a rectangle that is 2x1 feet, how far can it reach?
Answer:
6 feet
Step-by-step explanation:
You are basically finding the perimeter of this rectangle.
2+2+1+1 = 6
loooooook below answer number 1234 am giving brainliest
Answer: for number 1 - answer is 84.7
number 2 - answer is 24
number 3- answer is 47.5
number 4 - answer is 6.5
Step-by-step explanation:
1: 84.7
2: 24
3: 47.5
4: 6.5
A bottle of shampoo costs $4 at a store. It is on sale for 25% off, and the sales tax in 5.5%. What is the sales price of the shampoo?
please ACTUALLY HELP>DONT JUST SPAM >IM BEGGING U>I WORKED HARD FOR THESE POINTS>
Answer:
1.22 dollars after sales tax
Answer:
4
Step-by-step explanation:
that is the answer