Answer:
6:7
Step-by-step explanation:
both values can be divided by 3
give the slope of a line perpendicular to the given line.
6x+3y=18
Answer:
1/2
Step-by-step explanation:
the first one trust me
Given: triangle ABC and triangle EDC, C is the midpoint of BD and AE.
Prove: AB || DE
Step-by-step explanation:
1. ΔABC=ΔCDE: a) according to the condition BC=CD and AC=CE; b) m∠(BCA)=m∠(DCE).
2. if ΔABC=ΔCDE, then m∠(BAC)=m∠(DEC) and m∠(ABC)=m∠(CDE).
3. if m∠(BAC)=m∠(DEC), then AB || DE (or if m∠(ABC)=m∠(CDE), then AB || DE).
How much time required to complete a10days work if it could complete by 3 worker in 4days and 6worker in 3.05 days,if 5 workers is involved in it? please reply
Answer:
This seems to be a linear relationship:
A linear relationship can be written as:
y = a*x + b
where a is the slope and b is the y-axis intercept.
For a line that passes through the points (x1, y1) and (x2, y2), the slope can be written as:
a = (y2 - y1)/(x2 - x1).
We know that 3 workers can complete the job in 4 days.
Then if we define W as the rate at which a single worker can complete the work, we have the ordered pair (3 workes, 4 days)
And we also know that 6 workers can finish the job in 3.05 days, then we also have the ordered pair (6 workers, 3.05 days)
Then using these two, we can find the slope of the line:
a = (3.05 days - 4 days)/(6 workers - 3 workers) = -0.35 days/worker.
Then we have the equation:
y = (-0.35 days/worker)*x + b
Where:
y represents the time to complete the job
x represents the number of workers.
b is the y-intercept, to find the value, we could just replace one of the points in the equation, for example with the point (3 workes, 4 days) we need to replace x by 3 workers, and y by 4 days:
4 days = (-0.35 days/worker)*3 workers + b
4 days = -1.4 days + b
4 days + 1.4 days = 5.4 days = b
then the equation is:
y = (-0.35 days/workers)*x + 5.4 days.
Now we can find the number of days needed for 5 workers to finish the job, we just need to replace x by 5 workers:
y = (-0.35 days/workers)*5 workers + 5.4 days
y = 3.65 days.
Pls help I’ll brainlest for the right answer
Answer:
48
Step-by-step explanation:
64*3/4=48
answer:
increase, $80
Write the slope intercept form of the equation with slope 8 and y intercept (0,7)
Answer:
y=8x+7
Step-by-step explanation:
Use the form y=mx+b
M= the slope
B= the y-intercept
y=8x+?
Since the y coordinate of (0,7) is 7
b=7
So y=8x+7
Please help!! 13 points and marked as brainy list!!
please can u solve ir for me.
Answer:
Step-by-step explanation:
x+y=180; y+z=180
145+z=180
z= 35
y=180-35
y =145
x=180-145
x= 35
---------------------
2x-10=x+80
x=90
3y-4 =y+20
2y = 24
y = 12
Rachel found three pieces of wire in her tool drawer. Here are their lengths (in centimeters) 5 , 9.33 ,19.9 What is the total length of the three pieces?
Answer:
34.23 centimeters roughly 11 inches
An oak tree is planted when it is 650 centimeters tall. What is this height in meters?
The height of the oak tree is
meters.
Answer:
The answer is 6.5 meters tall
Step-by-step explanation:
650 divided by 100
do your 2 loops to the left and you get 6.5
If m(x) = x2 + 3 and n(x) = 5x + 9, which expression is equivalent to (mn)(x)?
5x3 + 9x2 + 15x + 27
25x2 + 90x + 84
x2 + 5x + 12
5x2 + 24
Answer:
5x3+9x2+15x+27
Step-by-step explanation:
The expression that is equivalent to (mn)(x) is 5x³ + 9x² + 15x + 27.
Option A is the correct answer.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example: so
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
To find the product of m(x) and n(x), we need to multiply the two polynomials term by term:
m(x) = x² + 3
n(x) = 5x + 9
mn(x) = (x² + 3) (5x + 9)
Multiplying the two polynomials using the distributive property.
mn(x) = 5x³ + 9x² + 15x + 27
Thus,
The expression that is equivalent to (mn)(x) is 5x³ + 9x² + 15x + 27.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ5
find 20-24 using the picture provide
Answer:
Um no picture but i know 20-24 is -4 hope that helps
Step-by-step explanation:
Multiply 9/20 and 5/35
Answer:
9/140
Step-by-step explanation:
9/20⋅5/35
Factor the number: 35= 5⋅7
9/20⋅5/5⋅7
Cancel the common factor: 5
9/20⋅1/7
Apply the fraction rule
9⋅1/20⋅7
Multiply the numbers: 9⋅1=9
9/20⋅7
Multiply the numbers: 20⋅7=140
9/140
There's your answer ;)
i giveee brainlilstttttttt
Answer:
A
Step-by-step explanation:
Answer:
thanksssssssss
Step-by-step explanation:
sssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
Factor the equation
Answer:
y = (x + 4)²
Step-by-step explanation:
Given equation is,
y = x²+ 8x + 16
By using identity (a + b)² = a² + 2ab + b²
y = x² + 2(4)(x) + 4²
Here a = x and b = 4
y = (x + 4)²
Therefore, factored form of the given equation is y = (x + 4)²
2. What is the slope of a line that goes through the points (-14, -10) and (12,
18) *
-4
28/27
14/13
Answer:
14/13 or 1.0769
Step-by-step explanation:
Used a Regression Calculator and typed in the points
what is x?
plz, help with my homework.
Aswr:
i got undefined
Stp-by-stp explntin:
Can someone pls help
Answer:
44 bulldogs
Step-by-step explanation:
2x — 1) (3х2 + 5x — 2)
Simplify the expression to a polynomial in standard form
Answer:
nirvfivbndbgfbdfgdbgnbgfnbgnbf gnbvbnhgfnghfjhjhgjgjjhgjgj
Step-by-step explanation:
Use the number line.
Find WY=
Answer:
WY = 12 units.
Step-by-step explanation:
Given the number line
The location of W is at x = -5The location of X is at x = -1The location of Z is at = 4The location of Y is at = 7The distance between W and Y can be calculated such as:
WY = [Location of Y] - [Location of W]
WY = [7] - [-5]
WY = 7+5
WY = 12
Therefore, WY = 12 units
Can somebody help me?
Answer:
6/7
Step-by-step explanation:
because there are 28 properties in all
4 of them are railroads
but we're not looking for the probability of selecting a railroad, which would be 4/28 or 1/7, but for not selecting a railroad
and 24 of them are not railroads
So the probability of not selecting a railroad is 24/28, which simplified/reduced is 6/7
ok now can u guys help me plz
Answer:
The 4 answer is yours
Step-by-step explanation:
-2x^3+2x
The base of the pyramid is a square of side 12cm.
The height of the pyramid is 8cm.
X is the midpoint of QR and XT = 10cm.
A) Draw the front elevation of the pyramid from the direction of the arrow. Use a scale of 1 square to 1cm.
B) Work out the total surface area of the pyramid.
Answer:
384 .cm2
Step-by-step explanation:
help please help me come on
Answer:
A had to be the answer.
Identify the property you would use to solve this equation:
y - 7 = 28
The property used to solve y - 7 = 28 is the Addition Property of Equality
Ryan counts 505,515, 525, 535, 545, 555. By which number does Ryan skip count?
I don’t understand this question someone please explain
Answer:
1- they are proportional
2- that one is right
Step-by-step explanation:
k so
x and y are proportional bcuz y will always be 1/3 of x, and if u drew a line on the graph it would go thru the origin
What inequality is represented by this graph? A. x > 6 B. x _< 6 C. x < 6 D. x _> 6
Answer:
x<6
Step-by-step explanation:
b. x≤6
so the empty circle means it's (in this case) less than or equal to 6. the < looks like an L, so think, L is for Less than. Also, the < looks like part of <-, so that's the way the arrow points! hope this helps, good luck!
I need help pleaseeee
Answer:
Step-by-step explanation:
This expressions equals [tex]\sqrt{(x-2)^{2}[/tex]
You can simplify to absolute value of x-2 when x is less than 2
1) Emmi makes lines on rectangles to show four fourths. Which rectangle is incorrect? Explain. Rectangle I because there are no lines that go across the shape. Rectangle 3. because it does not show equal parts. 1 2. 1 Rectangle 2 because the parts are made by only two lines. 3 4 Rectangle 4, because it is not divided into the right number of parts.
Answer:
3
Step-by-step explanation:
Because i don;t have equal parts
Answer:
number 3 is wrong, because it does not show equal parts. All of the others have equal amounts shown.
Step-by-step explanation:
A farmer owns a total of 9 acres of land. The land is separated into 4 2/7 equally sized sections. How many acres are in each section?
Answer:
[tex]2\dfrac{1}{10}\ \text{acres}[/tex]
Step-by-step explanation:
[tex]9[/tex] acres of land split into [tex]4\dfrac{2}{7}[/tex].
Now
[tex]4\dfrac{2}{7}=4+\dfrac{2}{7}[/tex]
One section of land will be
[tex]\dfrac{9}{4+\dfrac{2}{7}}\\ =\dfrac{9}{\dfrac{30}{7}}\\ =\dfrac{63}{30}\\ =\dfrac{21}{10}=2\dfrac{1}{10}\ \text{acres}[/tex]
One section of the land is [tex]2\dfrac{1}{10}\ \text{acres}[/tex].
