work out the inverse function
y=x-2
Answer:
x + 2
Step-by-step explanation:
Replace the x with y.
Making is x = y -2
Solve for x=y-2
and you get x+2
Answer:
x+2
Step-by-step explanation:
When doing inverse functions, you switch the x and y.
x = y-2
Then you solve for y (add the 2 to the other side to get "y" by itself)
y = x+2
Which of the following is an equivalent expression to the given expression using the commutative property of addition?
2(xy)+5x
Question 1 options:
(xy)2+5x
(2x)y+5x
5x+2(xy)
x(2y+5)
Answer:
I think it's the 2rd equation
Math question help, it’s in the photo. Thank you!
Instructions: Write and solve an equation to find the measure or angle x.
Answer:
x = 30
Step-by-step explanation:
Okay the triangle should add up to 180.
The square represents a right angle = 90°
So just do this
60° + 90° + x = 180 (collect like terms)
150° + x = 180 (subtract 150 on both sides)
x = 30
Hope this helps ya!
Answer:
x = 30
Step-by-step explanation:
the trinagle has an angle of 180.
and the trainage has a 90° next to the 60
So
60° + 90° + x = 180 (there are term)
150° + x = 180
subtract 150 on both sides
150 - 150 180-150 = x = 30
Please help I am doing a timed test I will choose brainliest
Write the standard form of the equation of a line with a slope of 3 passing through the point (-1, -5).
Select one:
a. -x + 3y + 14 = 0
b. x - 3y - 14 = 0
c. 3x - y - 2 = 0
d. -3x + y + 2 = 0
Step 1: We start by writing the equation of the line in slope-intercept form by solving for b.
[tex]-5 = 3(-1) + b\\\\-5 = -3 + b\\\\-2 = b\\[/tex]
Step 2: Now we set up the equation of the line in slope-intercept form.
[tex]y = 3x - 2[/tex]
Step 3: We can now convert the above equation from slope-intercept form to standard form.
[tex]y = 3x - 2\\\\-3x + y = -2\\\\-3x + y + 2 = 0[/tex]
The equation of the line in standard form is: D: -3x + y + 2 = 0.
( 6 x − 10 ) + 1 3 ( 6 + 9 x )
Answer:
123x + 68
Step-by-step explanation:
Pull out like factors :
6 + 9x = 3 • (3x + 2)
(6x - 10) + 39 • (3x + 2)
Final result : 123x + 68
Answer:
123x + 68
Step-by-step explanation:
(6x - 10) + 78 + 117x
6x - 10 + 78 + 117x
123x + 68
Check the photo. ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Answer:
4/25
Step-by-step explanation:
Its 4/25 as a fraction
Just 2 and 3 .....................................
Answer:
i
Step-by-step explanation:
Please help me solve this it’s I center
Answer:
Think about it this way:
triangle KDI is supplementary to EHK. SO if we find the angles of KDI we can do the same for EHK. Additionally, the m<H in the triangle HKF is 90 degrees and since it is supplementary to EHK then the measure of h in EHK is also 90 degrees. So m<h is 90. All three angles will equal to 180 since the interior angles of any triangle equal 180°
Now, lets find the measures of KDI so we can solve for the measure of K in the triangle EHK
D in KDI is 19 degrees and the square on I in KDI indicates its a 90 degree angle. Those add up to 109 degreess meaning measure of k must equal 71 degrees (180=109=71) since the interior angles of any triangle equal 180. Therefor in the triangle EHK, h is 90, and k is 71 degrees by vertical angles theorem. 90 and 71 add up to 161 degrees meaning angle E is going to be equal to 19 (180-161=19). this, therefore means 17x-7=19
solve:
17x-7=19
17x=26
x=26/17
x=1 9/17
You can write it as a decimal, improper fraction or mixed number.
Step-by-step explanation:
Find the total interest:
$40,900 at 6.2%
for 2 years
6.2% of 40,900 is $2535.8
To find out how much money it'll be in 2 year, you have to use multiplication.
2535.8 x 2 = $5071.6
The interest after 2 years is $5071.6
your welcome
EASY HIGH POINTS
In parallelogram WXYZ, the longer sides are three times the length of the shorter sides.
Parallelogram W X Y Z. The length of sides W Z and X Y are 12 inches.
If W Z = 12 inches, what is the length of ZY?
3
4
8
12
Answer:
D. 12
Step-by-step explanation:
12 by 3 is 36 and since its three times the length if you divide it by 3 it would be 12.
Answer:
4
Step-by-step explanation:
2 ¿Cuál es la relación entre el área del dibujo a escala y el área de la cancha de baloncesto real? escala 4.2 pulgadas A. Muestra cómo puedes hallar el área de 1 pulgada : 20 pies D. ¿La razón entre el área real y el área del dibujo es la misma que la razón entre la cancha en el dibujo a escala B. Muestra cómo puedes hallar la longitud y el ancho de la cancha real. C. ¿Cuál es el área de la cancha de baloncesto real? Muestra tu trabajo. las longitudes reales y las longitudes del dibujo? Explica tu respuesta,
Answer:
i don't have the answer but this is the translation guys
Step-by-step explanation:
What is the relationship between the area of the scale drawing and the area of the actual basketball court? 4.2 inch scale A. Show how you can find the area of 1 inch: 20 feet D. Is the ratio of the actual area to the area in the drawing the same as the ratio of the court in the scale drawing B. Show how you can Find the length and width of the actual court. C. What is the area of the actual basketball court? Show your work. the actual lengths and the lengths of the drawing? Explain your answer,
Sheila has 10 1/2 pounds of potato salad. She wants to divide the potato salad into containers, each of which holds 2 1/4 pounds. How many containers does she need? Complete the explanation.
Answer: 5 containers
Step-by-step explanation:
Step 1
Given that
Total amount of potato salad = 10 1/2
amount of salad in each container = 2 1/4
Total number of containers = ?
Step 2
Divide the total amount of potato salad by the amount of salad each container can hold
Total number of containers=10 1/2 / 2 1/4 = 21/2 x 4/9= 84/18 = 4 3/5
which can also be written as 10.5 / 2.25= 4.6
Sheila will need 5 containers because 4 will be filled and additional 1 will be partially filled.
I need help. A building with a height of 48 m casts a shadow that is 30 m long. A person standing next to the building casts a shadow that is 0.8 m long. How tall is the person?
Answer:
1.28 m
Step-by-step explanation:
48/30 = x/.8
cross multiply
30x = 48(.8)
30x = 38.4
x = 38.4/30
x = 1.28 m
Xavier can paint the average house in 4 hours, while Mohamad can do it in 12 hours. Find the number of hours, $$, that it would take to paint a house if they both worked together.
Answer:
3 hours
Step-by-step explanation:
Xavier can paint the average house in 4 hours
This means that in 1 hour, Xavier paints 1/4 of the house
Mohamad can do it in 12 hours
That means in 1 hour, Mohamad paints 1/12 of the house
Hence,
Together the amount of the house they can paint in 1 hour is
1/4 + 1/12
The Least common denominator is 12
(3 × 1 + 1 × 1)/1#
= 3 + 1/12
= 4/12
= 1/3
Together they can paint 1/3 of the house
The number of hours, that it would take to paint a house if they both worked together is
= 1/3 = 1
Cross Multiply
= 3 × 1
= 3 hours
CAN ANYONE DO IT PLEASE.
Answer:
85°Step-by-step explanation:
see attached image
please help! thank you
9514 1404 393
Answer:
y = (-7/3)x +3
Step-by-step explanation:
The line has a negative slope (eliminating choices B and C) that is steeper than a line with a slope of -1, The only answer choice with a negative slope less than -1 is choice D.
__
The slope is the coefficient of x. It is "rise"/"run". Here, the line goes through grid points (0, 3) and (3, -4), so drops 7 units (rise=-7) for each 3 units to the right (run=3). Then the slope is rise/run = -7/3.
The line crosses the y-axis at y=3, so the slope-intercept equation is ...
y = mx + b . . . . . . . . slope = m; y-intercept = b
y = (-7/3)x +3
Kyra is participating in a fundraiser walk a-thon . She walks 2 miles in 30 minutes . If she continues to walk the same rate , determine how many minutes it will take her to walk 7 miles
Answer:
2 miles in 30 minutes
1 miles in 15 minutes
7 miles in 105 minutes
Thank you and please rate me as brainliest as it will help me to level up
Answer:
Step-by-step explanation:
$&+!8
Find the slope and y-intercept. Also, determine if it is Proportional or Non Proportional
Answer:
Step-by-step explanation:
Slope of a line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is,
m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
From the table attached,
Two points lying on the graph are (1, 12) and (2, 24).
Slope of the line will be,
m = [tex]\frac{24-12}{2-1}[/tex]
Slope = 12
Since equation of a line passing through a point (x', y') and slope 'm' is,
y - y' = m(x - x')
Therefore, equation of the line passing through (1, 12) and slope 12 will be,
y - 12 = 12(x - 1)
y = 12x - 12 + 12
y = 12x
By comparing this equation with the equation,
y = mx + b
where 'b' = y-intercept = 0
Since, y-intercept is zero, table will represent the proportional relation between x and y.
Proportional or non proportional → Proportional
Please Hurry! Due by tonight!
Step-by-step explanation:
the y-intercept is 1 because it's on the y(axis). the line from 1 goes down 1 over three so the slope is 1/3.
your equation would be y=1/3x+1
Sarah pained her birdhouse this weekend. She painted 1/5 of her birdhouse with 2/3 cans of paint. How many cans of paint will she need to complete her birdhouse
Answer:
8/3 or 2.666666..........
Step-by-step explanation:
20% = 2/3
100 / 20 = 5
so it will take 5 * 2/3 or (10/3) to paint the whole house
but use had used 2/5
so the Answer is (10/3) - (2/5) = 8/3
plsss help me out i’m really having trouble a trying to figure this out
I'm pretty sure it's C. Both.
Answer:
only table A is a function
Table B has two inputes with the same outpute so it is impossible to be a function. but two of the same inputes can have different outputs
please help :) im stupid and bad at this lol
(i meant to put english not math)
name the four types of transition words and what type of relationship each shows.
Answer:
Addition. “Also, I have to stop at the store on the way home.” ...
Comparison. “In the same way, the author foreshadows a conflict between two minor characters.” ...
Concession. “Granted, you did not ask ahead of time.” ...
Step-by-step explanation:
If (x-9) is a factor of 2x^2 - 19x + k, what is the value of k?
Answer:
18
Step-by-step explanation:
at a vacation resort, you can rent a jet ski for $35 per hour plus a $20 rental fee. your bill came to $90.
write an equation that can be used to represent this situation?
Answer:
Step-by-step explanation:
You rent a 35 dollar jet ski and per hour plus a 20 dollar rental fee. Your bill came to 90 dollars.If 35 and 20 dollars equal to 55 that means you had payed something that was 1-35 dollars. 35 + 20 = 55
Karsyn is getting ready for her date. She has 20 outfits to choose from. Half of her
clothes are dirty. Her mom washed 3 more outfits, how many outfits would Karsyn have
had to choose from if she did her laundry?
Identify the variable:
Write the equation:
How many outfits did she have?
X+y=8
Y=3x
Solve with substitution
Correct answer gets Brainliest!!
Answer:
x=2, y = 6
Step-by-step explanation:
We see that y = 3x so we can substitute the y in x + y = 8.
x + 3x = 8.
Combine like numbers:
4x = 8.
Divide both sides by 4.
x = 2
Now plug in x to find y
2 + y = 8
Subtract 2 from both sides.
y = 6
What is -5 5/8 + 3 1/2
Answer:
-2.125
Step-by-step explanation:
find the inverse ratio of 12:13
Answer:
13/12
Step-by-step explanation:
PLEASE HELP DUE IN 5 MINUTES
Christo graphs AB with endpoints A( -3, -2 ) and B ( -1, -2 ) what are the endpoints of the image after a reflection of AB across the x axis?
1. (-3,2) and (-1,2)
2.(-3.-2) and (-1,-2)
3. (1,-2) and (3,-2)
4. (2,3) and (2,1)
5. none of the above
Answer:
1. (-3, 2) and (-1, 2)
Step-by-step explanation:
A credit card company uses your average daily balance to compute your finance charge. You charge $100 on May 2 and $200 on May 20. What is your average daily balance?
Answer:
$5.56Step-by-step explanation:
On may 2, charge = $100
On may 20, charge = $200
To get the average daily balance, we will use the concept of calculating slope;
let d be day of the month and c be the amount charged
when d1 = 2, c1 = 100
when d2 = 20, c2 = 200
average daily balance = c2-c1/d2-d1
average daily balance = 200-100/20-2
average daily balance = 100/18
average daily balance ≈ 5.56
Hence your average daily balance is approximately $5.56