Answer:
Equation of line perpendicular to given graph is:
[tex]y = -\frac{1}{2}x+4[/tex]
Step-by-step explanation:
Given equation of line is:
14x-7y=8
First of all, we have to convert the given equation into slope-intercept form to find the slope of the line
The slope-intercept form is:
[tex]y = mx+b[/tex]
Now
[tex]14x-7y=8\\14x-8 = 7y\\\frac{7y}{7} = \frac{14x-8}{7}\\y = \frac{14}{7}x - \frac{8}{7}\\y = 2x - \frac{8}{7}[/tex]
The co-efficient of x is 2 so the slope of given line is 2
Let m1 be the slope of line perpendicular to given line
The product of slopes of two perpendicular lines is -1
[tex]m.m_1 = -1\\2.m_1 = -1\\m_1 = -\frac{1}{2}[/tex]
The equation for line perpendicular line to given line will be:
[tex]y = m_1x+b\\y = -\frac{1}{2}x+b[/tex]
To find the value of b, putting (-2,5) in the equation
[tex]5 = -\frac{1}{2}(-2) + b\\5 = 1+b\\b = 5-1\\b = 4[/tex]
The final equation is:
[tex]y = -\frac{1}{2}x+4[/tex]
Hence,
Equation of line perpendicular to given graph is:
[tex]y = -\frac{1}{2}x+4[/tex]
Which expression is equivalent to -1/3(6x+15)?
Please help me :(
A) -2x+12
B)-2x+2
C)-2x-2
D)-2x-8
Answer:
-2x+5
Step-by-step explanation:
Bro the answer are wrong there should on more options of -2x+5
These is explainetation
-1/3 × 6x + -1/3 × 15 ( because -1/3 is multipled to whole bracket)
-2x + 5
Write the coordinates of the vertices after a dilation with a scale factor of 5, centered at the origin.
Q (-2, -1)
Q' (___,___)
Answer:
Q' (-10, -5)
Step-by-step explanation:
Multiply each coordinate by the scale factor.
-2 · 5 = -10
-1 · 5 = -5
Therefore, Q' (-10, -5).
In the first week of July, a record 1,120 people went to the local swimming pool.In the second week, 100fewer people went to the pool than in the first week. In the third week,140 more people went to the pool than in the second week. In the fourth week, 208 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four weeks?
Answer:
15%
Step-by-step explanation:
Given that:
Number of people who went to swimming pool in the first week = 1120
In second week, there are 100 fewer people, so
Number of people who went to swimming pool in the second week = 1020
In third week, there are 140 more people, so
Number of people who went to swimming pool in the third week = 1160
In fourth week, there are 208 fewer people, so
Number of people who went to swimming pool in the fourth week = 952
To find:
Percentage decrease in the number of people who went to the pool over the four weeks?
Solution:
Initial value = 1120
Final value = 952
Decrease in the value = Final value - Initial value
Decrease in the value = 1120 - 952 = 168
To find the percentage, we need to take the initial value in the consideration.
Therefore, percentage decrease is:
[tex]\dfrac{Decrease}{Initial\ value}\times 100[/tex]
[tex]\Rightarrow \dfrac{168}{1120}\times 100\\\Rightarrow \bold{15\%}[/tex]
Answer:
Step-by-step explanation:
Find the length of the altitude drawn to the hypotenuse. please help
Answer:
12.6
Step-by-step explanation:
You go for a run on monday you run 2.41Km on tuesday you ran the same distance how far did you ran altogether
Answer: 4.82 km
Step-by-step explanation:
You went for a run on Monday.
You then went on a run on Tuesday as well. On this day you ran 2.41 km and it is said that you ran the same distance on both days which means you ran for 2.41 km on Monday as well.
The total distance you ran is therefore:
= 2.41 + 2.41
= 4.82 km
PLEASE ANSWER QUICK!!! The volume of ammonia in a balloon is now 6.1 L after changing the temperature from 52 °C to 79 °C. What was the original volume?
Answer:
the original volume is 4.0L
Step-by-step explanation:
Step one:
given data
V1= ?
T1= 52 °C
V2= 6.1L
T2= 79° C
Step two
applying the volume temperature relationship, which is
V1/T1= V2/T2
substituting we have
V1/52= 6.1/79
cross multiply we have
52*6.1= V1*79
317.2= 79V1
divide both sides by 79
V1= 317.2/79
V1=4.0L
Otto is told the average low temperature in January is 16.1∘C cooler than the average low temperature in November. What equation can Otto use to find the average low temperature in January?
Answer:
x - 16.1°C
Step-by-step explanation:
Given that average low temperature in January is 16.1 cooler Than average low temperature in November
Let average low temperature in November = x
Since, average low temperature in January is cooler than average low temperature in November, then, January temperature is less Than in November
Hence,
Average low temperature in January :
[Average low temperature in November - 16.1°C]
(x - 16.1°C)
Which operation should you do first when you simplify the expression below?
(15+4)x3
Answer:
I would assume you would use PEMDAS? thats what I would use
Answer:
Solve the parenthesis
Step-by-step explanation:
In the order of operations (PEMDAS), you would solve what's in the parenthesis first. So you would add 5 and 4, then multiply that by 3 to get the correct answer. Hope that helps!
Can someone help me with this question. Will mark brainliest.
Answer:
Choice 2
Step-by-step explanation:
Ask a friend or older sibling, they always have the answer (Not really)
How do you solve -2 = t/3 - 11?
______________________________
1.) Multiply both sides of the equation by 3:[tex]\frac{t}{3}[/tex] × [tex]3=t[/tex][tex]-11[/tex] × [tex]-3=-33[/tex]- We do this because we need to get x alone and separate from fraction from.
Equation at the end of Step 1:
[tex]-6=t-33[/tex]2.) Add 33 to both sides:[tex]-33+33=[/tex] Cancels Out[tex]-6+33=27[/tex]- We do this to cancel out an extra numbers in order to get only x alone with 1 number on the opposite side of the equal.
______________________________
Please help! I think I know the answer but I don't trust myself xD (Theres a screenshot attached)
Answer:
the second one
Step-by-step explanation:
Maribel sold 20% of the cupcakes she made. If she sold 35 cupcakes, then she made how many
cupcakes in all.
Answer:
20% x 5= 100%
35 x 5= 175
she has a total of 175 cupcakes
Determine the solution to the system of equations.
3x - y = 9
2x - y = 6
Answer:
(3, 0)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Solving systems of equations using substitution/eliminationSolving systems of equations by graphingTerms/CoefficientsStep-by-step explanation:
Step 1: Define Systems
3x - y = 9
2x - y = 6
Step 2: Rewrite Systems
2x - y = 6
Subtract 2x on both sides: -y = 6 - 2xDivide -1 on both sides: y = 2x - 6Step 3: Redefine Systems
3x - y = 9
y = 2x - 6
Step 4: Solve for x
Substitution
Substitute in y: 3x - (2x - 6) = 9Distribute -1: 3x - 2x + 6 = 9Combine like terms: x + 6 = 9Isolate x: x = 3Step 5: Solve for y
Define equation: 2x - y = 6Substitute in x: 2(3) - y = 6Multiply: 6 - y = 6Isolate y term: -y = 0Isolate y: y = 0Step 6: Check
Graph the systems to verify the solution set (3, 0) is the solution.
The solution set to the systems would be where the 2 lines intersect.
We see that the intersection point is x-intercept (3, 0).
∴ (3, 0) is the solution set to the systems of equations.
isolate and solve for y
Step-by-step explanation:
subtract y from both sides than divide the x values from bothe sides
Can anyone please help me solve this??
Answer:
X=4 Y= -5
Step-by-step explanation:
(3) Find the value of x.
Answer:
x=4
Step-by-step explanation:
since triangles are proportional by 2:1, then:
16/2=3x-4
8=3x-4
3x=12
x=4
Determine the value b
Answer:
17
Step-by-step explanation:
6x7= 42
42 divided by 2 = 21
21 - 4 = 17
answer = 17
Pls help it due in a hour
Answer:
The coordinates of the Midpoint of AB will be: (1/2, 5)
Step-by-step explanation:
Given the points
A(-2, 6)B(3, 4)Finding the midpoint between (-2, 6) and (3, 4)
[tex]\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)[/tex]
[tex]\left(x_1,\:y_1\right)=\left(-2,\:6\right),\:\left(x_2,\:y_2\right)=\left(3,\:4\right)[/tex]
[tex]M.P=\left(\frac{3-2}{2},\:\frac{4+6}{2}\right)[/tex]
[tex]=\left(\frac{1}{2},\:5\right)[/tex]
Therefore, the coordinates of the Midpoint of AB will be: (1/2, 5)
Item 6
Graph the solution of 4(7−x)<16.
Answer:
x>3
Step-by-step explanation:
4 • (7 - x) - 16 < 0
3.1 Pull out like factors :
12 - 4x = -4 • (x - 3)
-4 • (x - 3) < 0
4.1 Divide both sides by -4
4.2 Add 3 to both sides
x > 3
4.3 Inequality plot for
-4.000 X + 12.000 > 0
Find the slope of a line that passes through (4, 1) and (6, 5).
plssss show your work thx plssss
Answer:
Slope = 2
Step-by-step explanation:
Answer:
is this what youre looking for ?
Step-by-step explanation:
Input Data :
Point A ( x A , y A ) = (3, 2)
Point B ( x B , y B ) = (7, 10)
Objective : Find the slope of a line that passes through points A and B.
Formula : Slope m = y B − y A /x B − x A
Solution: Slope m = 10 − 2 /7 − 3 = 8 4
m = 2
y=−2x+4 Complete the missing value in the solution to the equation. ( −2) Need it quick no explanation need.
Answer:
1 is missing value..... .....
What percent of 65 is 13
Answer:
20 percent
Step-by-step explanation:
Just divide 100 by 65 and multiply that number by 13.
Answer:
20%
Step-by-step explanation:
This is the answer because:
1) Convert the fraction to a decimal, then multiply by 100:
13 x 100 ÷ 65 = 20
Therefore, the answer is 20%
Hope this helps! :D
3. Which number is a factor of 18. but not a multiple of 2? (10 Points)
Answer:
Three or nine
Step-by-step explanation:
The question is in the photo please answer if you’re sure !! Thank you so much !!
Answer:
x=3
Step-by-step explanation:
The equation here is x=3. If it were y=3, then it would be a horizontal line.
PLEASE HELP ME
Will mark brainliest
Answer: Its the last one trust me
Step-by-step explanation:
A jar has 2 pennies, 5 nickels, 3 dimes, and 2 quarters. What is the probability of drawing a penny,
replacing it, and drawing another penny?
There is a 2 in 12 chance of drawing a penny
Step-by-step explanation:
Answer: 2/12
Step-by-step explanation:
There are 12 coins all together, and 2 pennies which means there is a 2/12 chance to draw a penny. Then they replace the penny and draw another time, so by replacing the penny the probability doesn't change and there is still a 2/12 chance of drawing a penny.
Which polynomial represents the algebra tile configuration shown?
x2 + 3x + 4
x2 + 3x −
−x2 − 7
−x2 + 3x − 4
Answer: I’m pretty sure the answer is D. −x^2 + 3x − 4
Step-by-step explanation:
Answer:-x^2 + 3x - 4
Step-by-step explanation:
Michael read 135 pages in 90 minutes. Select all of the rates that have the same constant rate of change as Michael's rate. 180 pages in 2 hours 180 pages in 2 , hours 60 pages in 30 minutes 60 pages in 30 , minutes 108 pages in 212 hours 108 pages in 21 half , hours 150 pages in 1 hour 150 pages in 1 , hour 225 pages in 150 minutes 225 pages in 150, minutes 210 pages in 2 hour 20 minutes
Answer:
180 pages in 2 hours
225 pages in 150 minutes
210 pages in 2 hours 20 minutes
Step-by-step explanation:
135 pages : 90 minutes
= 135/90
= 3/2
= 3 : 2
180 pages : 2 hours
180 pages : 120 minutes
= 180/120
= 3/2
= 3:2
60 pages : 30 minutes
= 60/30
= 2/1
= 2:1
108 pages : 2 1/2 hours
108 pages : 180 minutes
= 108/180
= 18/30
= 3/5
= 3:5
150 pages : 1 hour
150 : 60
= 150/60
= 10/6
= 5/3
= 5:3
225 pages : 150 minutes
= 225/150
= 9/6
= 3/2
= 3:2
210 pages : 2 hours 20 minutes
210 pages : 140 minutes
= 210/140
= 3/2
= 3:2
What is the center of the circle x² + y2 - 4 = 0?
Answer:
(0,0)
Desmos graphing calculator is a great way to enter the formula of a circle and see a visual example.
100 POINTS AND BRAINLIEST
two paintings were sold were for $50 and $350. find the mean and the median
Mean :
Median:
At a gallery show, three paintings were sold for $250, $400, and $1,200.
Mean :
Median:
oil paintings have been sold for $410, $400, and $375.
Mean :
Median:
YOUR ANSWER WILL BE REPORTED IF YOU PUT NONSENSE
Answer:
Here, for example, is square inch pricing, using a multiplier of 2.5 (ie, $2.50 per square inch):
4×4 inches = 16 square inches x 2.5 = $40
8×8 inches = 64 square inches x 2.5 = $160
16×16 inches = 256 square inches x 2.5 = $640
24×24 inches = 576 square inches x 2.5 = $1,440
32×32 inches = 1,024 square inches x 2.5 = $2,560
I don’t know about you, but $40 seems awfully small price for a painting by someone who commands $2,560 for a 32×32 canvas.
Here are the same canvas sizes using linear inch pricing, using a multiplier of 20 (ie, $20.00 per linear inch) — as you can see, the difference in price feels a lot less out-of whack:
4+4 inches = 8 linear inches x 20 = $160
8+8 inches = 16 linear inches x 20 = $320
16+16 inches = 32 linear inches x 20 = $640
24+24 inches = 48 linear inches x 20 = $960
32+32 inches = 64 linear inches x 20 = $1,280
Neither of these pricing methods is “right” or “wrong,” but once you determine your method and your multiplier, charging by size can be a very helpful way to eliminate the guesswork, and feel confident about your pricing.
Different Pricing for Different Media?
One possible modifier to your size-based pricing structure is the media you paint with. If you only paint watercolors, or only paint oils, there’s no problem, but if you paint both on canvas and on paper, as I do, it gets a little tricky.
For whatever reason, paintings on paper tend to sell for less than paintings on canvas — even though they require framing, which is an added expense. In my case, if I were to pay to have a piece framed, my costs become much higher for a work on paper than for a canvas painting! What’s an artist to do?
(And remember that pricing your prints is an entirely different topic.)
I don’t have a final answer to this question, except to refer you to the item below…
Step-by-step explanation:
Answer:
Here, for example, is square inch pricing, using a multiplier of 2.5 (ie, $2.50 per square inch):
4×4 inches = 16 square inches x 2.5 = $40
8×8 inches = 64 square inches x 2.5 = $160
16×16 inches = 256 square inches x 2.5 = $640
24×24 inches = 576 square inches x 2.5 = $1,440
32×32 inches = 1,024 square inches x 2.5 = $2,560
I don’t know about you, but $40 seems awfully small price for a painting by someone who commands $2,560 for a 32×32 canvas.
Here are the same canvas sizes using linear inch pricing, using a multiplier of 20 (ie, $20.00 per linear inch) — as you can see, the difference in price feels a lot less out-of whack:
4+4 inches = 8 linear inches x 20 = $160
8+8 inches = 16 linear inches x 20 = $320
16+16 inches = 32 linear inches x 20 = $640
24+24 inches = 48 linear inches x 20 = $960
32+32 inches = 64 linear inches x 20 = $1,280
Neither of these pricing methods is “right” or “wrong,” but once you determine your method and your multiplier, charging by size can be a very helpful way to eliminate the guesswork, and feel confident about your pricing.
Different Pricing for Different Media?
One possible modifier to your size-based pricing structure is the media you paint with. If you only paint watercolors, or only paint oils, there’s no problem, but if you paint both on canvas and on paper, as I do, it gets a little tricky.
For whatever reason, paintings on paper tend to sell for less than paintings on canvas — even though they require framing, which is an added expense. In my case, if I were to pay to have a piece framed, my costs become much higher for a work on paper than for a canvas painting! What’s an artist to do?
(And remember that pricing your prints is an entirely different topic.)
I don’t have a final answer to this question, except to refer you to the item below…
Step-by-step explanation:
answer pleaseesesese
Answer:
a
Step-by-step explanation:
its a bc a is the only one that is the answer