Answer:
18
Step-by-step explanation:
Khan Academy
what is the sum of -3x + 9x
Answer: I believe the answer is 6x.
Answer:
6x
Step-by-step explanation:
the -3x cancels out 3 from the 9x making it 6x :)
I think the answer is 47.73 not sure tho
Who knows both of them ??? pleaseee
Step-by-step explanation:
question 13: false
question 14: 1
I can't find x y or z
Answer:
x = 4[tex]\sqrt{3}[/tex]
y = 6
z = 8
Step-by-step explanation:
keep in mind I'm not doing that well with geometry so this might all be wrong lol
x is part of a 30 60 90 triangle.
so x is 4[tex]\sqrt{3}[/tex]
next, this is a right angle triangle so you can follow the a^2 + b^2 = c^2 formula.
4 + 6 = 10
10^2 = 100
100 = a^2 + b^2
y = 6 and z = 8 bc 36 + 64 = 100
What is the solutionif this is your equation 9+k=18
Answer:
9k=18
k=9
Step-by-step explanation:
What is the slope of the line shown below?
(1,7)
(3,5)
-10
-10
O A.
O B.
1
2
O c. 1
O D.-1
Given;
The graph of a line.
To find:
The slope of the line.
Solution:
From the given graph it is clear that the line passes through the points (1,7) and (3,5).
So, the slope of the given line is
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\dfrac{5-7}{3-1}[/tex]
[tex]m=\dfrac{-2}{2}[/tex]
[tex]m=-1[/tex]
Slope of the line is -1.
Therefore, the correct option is D.
Fay has a lemonade stand.
She spends £42 on ingredients.
She sells each glass of lemonade for £1.50.
If she sells 30 glasses of lemonade, what is her total profit?
Answer:
her total profit is 3
Step-by-step explanation:
1.50 x 30 = 45
to find total profit - 45-42= 3
Identify the y-intercept of the graph of the equation.
Answer:
3
Step-by-step explanation:
the y intercept is were x=0
Fill in the blanks below in order to justify whether or not the mapping shown
represents a function.
Set A: 1,2,9
Set B: 0,4,6,5
Answer:
Yes it is showing a function
Step-by-step explanation:
Find the length AB ?
Answer:
AB = 54
Step-by-step explanation:
DE is a midsegment of the triangle and is half of AB , that is
2x + 13 = [tex]\frac{1}{2}[/tex](13x - 37) ← multiply through by 2 to clear the fraction
4x + 26 = 13x - 37 ( subtract 13x from both sides )
- 9x + 26 = - 37 ( subtract 26 from both sides )
- 9x = - 63 ( divide both sides by - 9 )
x = 7
Thus
AB = 13x - 37 = 13(7) - 37 = 91 - 37 = 54
The area of the parallelogram below is ____ square meters.
A parallelogram with height labeled with 8 meters. The top horizontal side is labeled 6 meters. The base of the left triangle formed by the height is 2 meters.
WILL GIVE BRAINLIST WHO EVER ANSWERS
Answer:
48 m²
Step-by-step explanation:
Given that:
Height of parallelogram, h = 8 meters
Base length of parallelogram, b = 6 meters
The Area of a parallelogram is given by :
Base * height
8 meters * 6 meters
= 48 m²
please hurry , help please??? find the values of the variables
Answer:
x=60
Step-by-step explanation:
The angles here are alternate interior angles, this means that they are congruent. Congruent means that they are equal to each other, so to solve just set them equal! (Your variable is x so you're solving for that)
[tex]2x=120\\x=60[/tex]
Hope this helps! :)
all decimal numbers are:-
a) rational numbers
b) irrational numbers
c) real numbers
d) integers
The answer fam is..... c) real numbers
PLZ ANSWER QUICK IT WILL HELP A LOT!
Answer:
He reflected it over the y-axis
Step-by-step explanation:
If the x coordinate is made a negative, that means it was crossed over the line that determines the y coordinate
factor 3x^3y^6-81 no clue man
Answer:
too much to explain
Step-by-step explanation:
3. A dragonfly traveled at a rate of 35 miles per hour for
2.5 hours. What distance did the dragonfly travel?
Answer:
70 miles
Step-by-step explanation:
You multiply 35 by 2.5
The Fun Guys game rental store charges an annual fee of $5 plus $5.50 per game
rented.
The Game Bank charges an annual fee of $11 plus $2.50 per game.
For how many game rentals will the cost be the same at both stores?
Answer:
2 games
Step-by-step explanation:
Given data
The Fun Guys game
charges annual fee of $5 plus $5.50 per game
let the number of games be x
and the total charges be y
The expression for the total is
y=5+5.5x---------------1
The Game Bank
charges an annual fee of $11 plus $2.50 per game.
y=11+2.5x---------------2
Equate 1 and 2 above
5+5.5x=11+2.5x
collect like terms
5.5x-2.5x= 11-5
3x= 6
divide both sides by 3
x= 6/3
x= 2
It will take 2 games
Peyton buys cookies and apples at the store.
She pays a total of $51.26.
She pays a total of $6.54 for the cookies.
She buys 8 bags of apples that each cost the same amount.
Write and solve an equation which can be used to determine
x
x, how much each bag of apples costs.
I need an answer please
Answer:
Hope this helps sorry I'm in class right now
Step-by-step explanation:
How do I solve radical equations?
which expression is equivalent to 3 (x - 2) + 2x
Answer:
5x-6
Step-by-step explanation:
a) 4
If the perimeter of this figure is 62 what is the value of x?
A.) 4
B.) -4
C.) -7
D.) 7
Answer:
i think c
Step-by-step explanation:
what is 18/75 as a percent
Answer:
24%
Step-by-step explanation:
Answer:
24%
Step-by-step explanation:
Rihanna or Beyoncé and why
Answer:
Rihanna
Step-by-step explanation:
better butt
Answer: I don’t think I could choose either one but if I had to...... Beyoncé.
I say Beyoncé because I like how powerful her voice is and I just love her music and I love her as a person.
How can I solve this problem using substitution, please show the work. (x,y)
y=x+8
x+y=2
Answer:
(-3,5)
Step-by-step explanation:
To solve using substitution, first isolate one variable in one of the given equations. Then, substitute the value you received from that equation for the matching variable in the second equation. Finally, substitute that value back into any of the equations to have both the x and y values.
1) The y in y = x + 8 is already isolated, so let's substitute that value for the y in x + y = 2. Substitute x + 8 for y in x + y = 2, then solve:
[tex]x + y = 2\\x + (x + 8) = 2 \\x + x + 8 = 2\\2x + 8 = 2 \\2x = -6\\x =-3\\[/tex]
Therefore, the x-value of the solution is -3.
2) Substitute the x value back into any of the one equations to find the value. Any choice is fine - in my work, I chose to substitute -3 for the x in y = x + 8:
[tex]y = x + 8 \\y = (-3) + 8\\y = -3 + 8\\y = 5[/tex]
Therefore, the y-value of the solution is 5.
3) Thus, the solution is (-3, 5).
Give me 3 examples of a ratio
Answer:
2:4 like in a basketball game 2/4 like a fraction 2:4 like a competitive thing
Step-by-step explanation:
Can 4cm 6cm and 12cm make a triangle
¿Qué significa términos semejantes los cuales se pueden simplificar?
★Misma variables
★Mismos Coeficientes
★Mismo exponentes
★Mismas variables y mismos Exponentes
Porfa espero la respuesta
Answer:
no entiendo im sorry
Step-by-step explanation:
Answer: Los términos semejantes son términos que contienen las mismas variables elevadas a la misma potencia. ... Combinamos términos semejantes para acortar y simplificar expresiones algebraicas, para que podamos trabajar con ellos más fácilmente
Step-by-step explanation:
Hi. I need help with these questions (see image)
Please show workings.
Question : Find the derivative with respect to x of each of the following:
(see image)
Answer:
see explanation
Step-by-step explanation:
Note that [tex]log_{e}[/tex] x = lnx ( natural logarithm)
Using the standard derivatives
[tex]\frac{d}{dx}[/tex] (lnx ) = [tex]\frac{1}{x}[/tex] , [tex]\frac{d}{dx}[/tex] ([tex]log_{a}[/tex] x ) = [tex]\frac{1}{xlna}[/tex]
Using the chain rule
Given y = f(g(x)) , then
[tex]\frac{dy}{dx}[/tex] = f'(g(x))) × g'(x) ← chain rule
(c)
y = [tex]log_{10}[/tex] (x² - 2) then
[tex]\frac{dy}{dx}[/tex] = [tex]\frac{1}{(x^2-2)ln10}[/tex] × [tex]\frac{d}{dx}[/tex] (x² - 2)
= [tex]\frac{1}{(x^2-2)ln10}[/tex] × 2x
= [tex]\frac{2x}{(x^2-2)ln10}[/tex]
(d)
y = ln([tex]\frac{1}{x}[/tex] )
[tex]\frac{dy}{dx}[/tex] = [tex]\frac{1}{\frac{1}{x} }[/tex] × [tex]\frac{d}{dx}[/tex] ([tex]x^{-1}[/tex] )
= x × - [tex]x^{-2}[/tex]
= x × [tex]\frac{-1}{x^2}[/tex]
= - [tex]\frac{1}{x}[/tex]
Please help! Find the perimeter of the figure.
A point with a positive x-coordinate and a negative y-coordinate is reflected over the y-axis
Which sentence describes the coordinates of the new point?
The x-coordinato is nogativo, and tho y coordinato is positivo,
The x-coordinate is positivo, and tho y coordinato is positivo,
The x-coordinato is negative, and the y coordinato is negativo.
The x-coordinate is positive, and the y coordinato is nogativo.
Answer:
" The x-coordinato is negative, and the y coordinato is negativo. "
Step-by-step explanation:
Both are in the bottom left quadrant: -x -y
You started here:
And reflected across the ☝ line aka Y
Which means it would now be on the left