Answers
Answer:
Bk = 65
Step-by-step explanation:
BK as we can see is 4x + 1
If two triangles are similar, the ratio of the corresponding sides are the same
Thus;
2x+7/27 = 4x + 1/45
45(2x + 7) = 27(4x + 1)
90x + 315 = 108x + 27
108x-90x = 315-27
18x = 288
x = 288/18
x = 16
From the question;
BK = 4x + 1
BK = 4(16) + 1
BK = 64 + 1
BK = 65
Related Questions
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
Answers
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.
Can someone pls help
Answers
Answer:
44 bulldogs
Step-by-step explanation:
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
Answers
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
Multiply 9/20 and 5/35
Answers
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 ;)
ok now can u guys help me plz
Answers
Answer:
The 4 answer is yours
Step-by-step explanation:
-2x^3+2x
I need help pleaseeee
Answers
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
what is x?
plz, help with my homework.
Answers
Aswr:
i got undefined
Stp-by-stp explntin:
2x — 1) (3х2 + 5x — 2)
Simplify the expression to a polynomial in standard form
Answers
Answer:
nirvfivbndbgfbdfgdbgnbgfnbgnbf gnbvbnhgfnghfjhjhgjgjjhgjgj
Step-by-step explanation:
explanation:
distribute/foil the (2x - 1) to the (3x² + 5x -2)
(2x)(3x²) + (2x)(5x) + (2x)(-2) + (-1)(3x²) + (-1)(5x) + (-1)(-2)
6x³ + 10x² - 4x - 3x² - 5x + 2
then combine like terms
6x³ + 7x² - 9x + 2
Please help!! 13 points and marked as brainy list!!
Answers
explanation
take each radius and multiply it by 2, then add them all
(2 • 2) + (3 1/4 • 2) + (1 •2)
= 4 + 6 1/2 + 2
= 12 1/2 = 12.5
Factor the equation
Answers
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
help please help me come on
Answers
Answer:
A had to be the answer.
2. What is the slope of a line that goes through the points (-14, -10) and (12,
18) *
-4
28/27
14/13
Answers
Answer:
14/13 or 1.0769
Step-by-step explanation:
Used a Regression Calculator and typed in the points
I don’t understand this question someone please explain
Answers
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
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.
Answers
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
Ryan counts 505,515, 525, 535, 545, 555. By which number does Ryan skip count?
Answers
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?
Answers
Answer:
34.23 centimeters roughly 11 inches
please can u solve ir for me.
Answers
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
Pls help I’ll brainlest for the right answer
Answers
Answer:
48
Step-by-step explanation:
64*3/4=48
answer:
increase, $80
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.
Answers
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:
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.
Answers
Answer:
384 .cm2
Step-by-step explanation:
find 20-24 using the picture provide
Answers
Answer:
Um no picture but i know 20-24 is -4 hope that helps
Step-by-step explanation:
Identify the property you would use to solve this equation:
y - 7 = 28
Answers
The property used to solve y - 7 = 28 is the Addition Property of Equality
explanation: I ADDED the 7 to 28 to cancel out the 7, leaving me with y=35, hope this helped
give the slope of a line perpendicular to the given line.
6x+3y=18
Answers
Answer:
1/2
Step-by-step explanation:
the first one trust me
Write the slope intercept form of the equation with slope 8 and y intercept (0,7)
Answers
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
i giveee brainlilstttttttt
Answers
Answer:
A
Step-by-step explanation:
Answer:
thanksssssssss
Step-by-step explanation:
sssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
Given: triangle ABC and triangle EDC, C is the midpoint of BD and AE.
Prove: AB || DE
Answers
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).
What inequality is represented by this graph? A. x > 6 B. x _< 6 C. x < 6 D. x _> 6
Answers
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!
Use the number line.
Find WY=
Answers
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
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?
Answers
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].
Can somebody help me?
Answers
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
