Answer:
The surface area of a cylinder is the surface area of rectangular piece of paper as you roll it into a cylinder
and the surface area of the base and top areas:
Assume that you had a rectangular piece of paper with the long side h, and short side w, let h be the height of the cylinder as you roll it, the surface area generated is the circumference of the circle with radius r multiplied by the height = 2 ¶ r h . The area of the top and bottom circular bases is 2 ¶ r2
The total surface area = 2 ¶ r h + 2 ¶ r2 = 2 ¶ r ( h+ r ) to express r in terms of w , w = 2 ¶ r the width of the rectangle equal to the circumference of the circle , then the total surface area = w ( h+ r )
but r = w / 2 ¶ , the surface area = w(h+w/ 2¶) = (wh+ w2/2¶)
Step-by-step explanation:
What is the area of a rectangle with a length of 313 feet and a width of 123 feet?
279 ft²
329 ft²
559 ft²
813 ft²
Answer:
the answer is 559
Step-by-step explanation:
I took the quiz
Four times a number added to 9 times the number is 65. What is the number?
Answer: 5
Step-by-step explanation:
Let the number = x.
4x + 9x = 65
13x = 65
x = 5
Answer:
5
Step-by-step explanation:
Let n represent the number. We can use this to set up an equation:
4n+9n=65
Combine like terms:
13n=65
Divide both sides by 13
n=5
The number is 5.
Diane is participating in a 6-day cross-country biking challenge. She biked for 54 , 50 , 47 , 55 , and 60 miles on the first five days. How many miles does she need to bike on the last day so that her average (mean) is 53 miles per day?
The formula for mean/average is m = sum of the terms/number of the terms. Basically, you add all the numbers provided and divide it by how many of them.
So our terms are 48, 54, 51, 69, 64. We are missing the last term, which the problem needs us to find, in order to meet the requirement of the average 58 miles per days, which is m.
Let's call the last term x.
m = sum of the terms/number of the terms
58 = (48 + 54 + 51 + 69 + 64 + x)/6
We need to work backward the formula to find x.
Because (48 + 54 + 51 + 69 + 64 + x) divided by 6 gives us the m, which is 58, we will multiply 58 by 6 to give us the sum of (48 + 54 + 51 + 69 + 64 + x)
58 * 6 = 348
So 348 is the sum of 48 + 54 + 51 + 69 + 64 + x. Let make it into an equation:
48 + 54 + 51 + 69 + 64 + x = 348. Now, simplify it by adding all the values except x.
286 + x = 348. Now what is left is to take 348 minus 286, which gives us 62.
Let's check by plugging 62 as x into the mean formula.
(48 + 54 + 51 + 69 + 64 + 62)/6 = m = 58
Hope this helps!
f(x) = 9x + 7
f(b) = 16
b = ?
»f(x) = 9x + 7
»f(b) = 16
x = b»f(b) = 9b + 7
»16 = 9b + 7
»16 - 7 = 9b
»9b = 9
»b = 9/9
»b = 1✅
[tex]\\ \rm\hookrightarrow f(b)=16[/tex]
[tex]\\ \rm\hookrightarrow 9b+7=16[/tex]
[tex]\\ \rm\hookrightarrow 9b=9[/tex]
[tex]\\ \rm\hookrightarrow b=1[/tex]
Big Points
What is the equation of a horizontal line that passes through the point (4, -5)?
Question 2 options:
y = 4
y = -4
y = 5
y = -5
Answer:
y = -5
Step-by-step explanation:
The coordinate point is in the format (x, y)
Therefore, the y-value of (4, -5) is -5
So the equation of the horizontal line is therefore y = -5
A horizontal line at point (4,-5) would need to pass through the The y value of the given point.
Answer: y = -5
I WILL GIVE YOU BRAINLIEST
Answer:
x<13
Step-by-step explanation:
you divide by -2 and it becomes 13 but you also have to flip the sign to make the answer x<13
Hello.
This is a one-step inequality, meaning that we can solve it in one step.
Divide both sides by -2:
x<13
Note:[tex]\bigstar[/tex] If you divide both sides of an inequality by a negative number, you flop the inequality sign.
Therefore, the answer is
[tex]\Large\boxed{x < 13}[/tex]
I hope it helps.
Have a nice day.
[tex]\boxed{imperturbability}[/tex]
PLEASE HELP IM DESPERATE I DID THIS KHAN AT LEAST 7 TIMES IM SO DEPRESSED I JUST WANT TO GET THIS DONE WITH!
Answer:
y = (-3/2) x + 3
Step-by-step explanation:
The line passes through (0, 3) and (2, 0)
Slope = (0 - 3)/(2 - 0) = -3/2
Let y = (-3/2) x + b
Use (0, 3) to get b:
3 = (-3/2)*0 + b, so b = 3
Then y = (-3/2) x + 3
One gallon of paint will cover 400 square feet. How many gallons of paint are needed to cover a wall that is 8 feet high and 100 feet long?
A) 1/4
B) 1/2
C) 2
D) 4
Answer:
the correct answer is option c. hope it helps. please mark me as brainliest .
What is exactly the relation between a Rhombus, rectangle, parallelogram, and square explain please i will mark brainliest only IF you explain
Any rhombus is a parallelogram, but not the other way around. If you were to make a Venn Diagram, the "rhombus" portion is entirely inside the set of "parallelograms".
The same can be said about rectangles as well. Any rectangle is a parallelogram, but not the other way around.
If we overlapped the region of rectangles and rhombuses, then we form the region for squares. A square is a combination of a rhombus and a rectangle.
Any square has all four sides the same length (property of a rhombus) and all angles equal to 90 (property of a rectangle). Since a square inherits properties of a rectangle and rhombus, it automatically makes any square a parallelogram.
Check out the venn diagram below.
may someone please answer this for me
Answer:
Option D
Step-by-step explanation:
We can multiply the first one by 2 to get 8:20
4:10 × 2 = 8:20
We can divide the second one by 2 to get 8:20
16:20 ÷ 2 = 8:20
We can divide the third one by 3 to get 8:20
24:60 ÷ 3 = 8:20
We can divide the fourth one by 3.5 to get 8:20
28:70 ÷ 3.5 = 8:20
This process of dividing and multiplying was finding equivalent ratios to answer the question.
Select the correct answer.
What argument does Thomas Jefferson make in this excerpt from the Declaration of Independence?
Creator with
Function f(x)=|x| is transformed to create function g(x)=|x+6|−8. What transformations are performed to function f to get function g? Select each correct answer.
Answer:
[tex]\huge\boxed{\text{Translated left by 6 units, and down by 8}}[/tex]
Step-by-step explanation:
According to the rules f(x) --> f'(x + a) is a horizontal shift right by a factor of -a, and f(x) --> f'(x) + a is a horizontal shift up by a factor of a, you can deduce that because x becomes x + 6, and |x| becomes |x| - 8, the translations are as shown above.
Hope it helps :) and let me know if you want me to elaborate.
A translation left by 6 units and down by 8 units is performed to function f to get function g.
What is geometric transformation?It is defined as the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.
It is given that f(x)=|x| is transformed to create function g(x)=|x+6|−8.
If there is a horizontal or vertical shift, reflection around the x-axis or y-axis, or vertical stretch, the transformation may be found by comparing the function to the parent function.
The parental function is,
f(x)=|x|
If the horizontal Shift to the Left is 6 units and the vertical Shift is 8 units the following function g(x)=|x+6|−8 is obtained.
Thus, a translation left by 6 units and down by 8 units is performed to function f to get function g.
Learn more about the geometric transformation here:
brainly.com/question/16156895
#SPJ2
A rectangle has a area of 135ft2. What is the length if the width is 9ft?
Answer:
The length is 15 ft
Step-by-step explanation:
Area = length x width
135 = length x 9
135/9 = length
15 = length
The length is 15 ft
-Chetan K
solve 2x - 3 < x + 2 less than or equal to 3x + 5
show your work
Step-by-step explanation:
Find the following sets
Answer:
Step-by-step explanation:
a) 2,3,4,5,6,7
b)4,6,7
Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1059 adults, 88% said that they have a cell phone. Find the value of the test statistic.
Rewrite the product as a sum or difference.
sin(-x) sin(9x)
Answer:
[cos(10x) - cos(8x)]/2
Step-by-step explanation:
sin(-x) sin(9x) = {cos[9x - (-x)] - cos(9x + (-x)]}/2
= [cos(10x) - cos(8x)]/2
1) Find the domain and range of the rational function
v(x) = x^{2} - 25/ 2x^{2} + 13x + 15
A) Factor the numerator and denominator.
B) Determine the point of discontinuity if it exists
C) Determine the vertical asymptote.
D) Determine the horizontal asymptote.
E) Graph the function.
1) Fill in the table of values to find three or four points to plot for each
curve. Use a graphing calculator
Include the point of discontinuity:
Answer:
Factor the numerator and denominator
25 2
Determine the point of discontinuity if it exists.
x = -5
Determine the vertical asymptote.
x = - 3/2
Determine the horizontal asymptote.
y = 1/2
E) Graph the function
x −8 −3 −2 −1 0 2 5 10
v x( ) 11 11 9 7 5 1 5 15
Include the point of discontinuity
11
Solve the system of equations
y-2=4x
5y-2x=1
pls show how you got it/ pls show your work
So we have the equations:
y - 4x = 2 --- equation 1
5y - 2x = 1 --- equation 2
(equation 2) * 2
10y - 4x = 2 --- equation 3
(equation 2) - (equation 3)
-9y = 0 so y= 0 and thus x = -1/2
Hope that helps!
How many liters of soup will fit in this hemispherical pot
PlS help
Answer:
3888pi cm^3 or 12214.5122372 cm^3
Step-by-step explanation:
To being, let's list out what we know
The volume of a sphere is
V = 4/3(pir^3)
But this is only half of a sphere, so the volume of it should be
V =2/3(pir^3)
With the diameter of the shape being
d = 36
We will first need to find the radius to use the formula above
r = d / 2
= 36 / 2
= 18
Now, let's start plugging in values
V = 2/3(pi18^3)
= 2/3 ( 5832pi)
= 3888pi or 12214.5122372
If you have any questions, please let me know in the comments section of this answer! If you could mark this answer as the brainliest, I would greatly appreciate it! :D
A theater has 1,008 seats in 36 equal rows. How many seats are in each row?
Answer:
28
Step-by-step explanation:
Rows are equal, so number of seats=N*36=1008
N-number of seats in a row
N=1008/36=28
168 divided by a number x equals 14
Answer:
x = 12
Step-by-step explanation:
=> 168 / x = 14
=> x = 168 / 14
=> x = 14 x 12 / 14
=> x = 12
find the coordinats of P
[tex]\textit{internal division of a line segment using ratios} \\\\\\ A(8,6)\qquad B(-2,-9)\qquad \qquad \stackrel{\textit{ratio from A to B}}{3:2} \\\\\\ \cfrac{A\underline{P}}{\underline{P} B} = \cfrac{3}{2}\implies \cfrac{A}{B} = \cfrac{3}{2}\implies 2A=3B\implies 2(8,6)=3(-2,-9)[/tex]
[tex](\stackrel{x}{16}~~,~~ \stackrel{y}{12})=(\stackrel{x}{-6}~~,~~ \stackrel{y}{-27})\implies P=\underset{\textit{sum of the ratios}}{\left( \cfrac{\stackrel{\textit{sum of x's}}{16-6}}{3+2}~~,~~\cfrac{\stackrel{\textit{sum of y's}}{12-27}}{3+2} \right)} \\\\\\ P=\left( \cfrac{10}{5}~~,~~\cfrac{-15}{5} \right)\implies P=(2~~,~~-3)[/tex]
PLEASE HELP IF YOU CAN
Answer:
the first option
Step-by-step explanation:
domain is represented by the x values (or the x axis) (how far left or right)
range is represented by the y values (or the y axis) (how far up or down)
the x values for these points are x= -2, 1, 4, 5
the y values for these points are y= -4, -1, 2, 3
hope this helps!
Divide 0.4 / 41 Enter your answer as a decimal in the box.
Answer:
0.4 / 41=0.009760
It starts to repeat the same numbers
Step-by-step explanation:
find the perimeter and area of the rectangle
Is 7x=5x-25+30 no solution,one solution, or all real numbers?
Thank you!
One solution let's find that
[tex]\\ \rm\hookrightarrow 7x=5x-25+30[/tex]
[tex]\\ \rm\hookrightarrow 7x=5x+5[/tex]
[tex]\\ \rm\hookrightarrow 2x=5[/tex]
[tex]\\ \rm\hookrightarrow x=5/2[/tex]
Answer:
one solution
Step-by-step explanation:
[tex]7x=5x-25+30[/tex]
[tex]\mathrm{Add/Subtract\:the\:numbers:}\:-25+30=5[/tex]
[tex]7x=5x+5[/tex]
[tex]\mathrm{Subtract\:}5x\mathrm{\:from\:both\:sides}[/tex]
[tex]7x-5x=5x+5-5x[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]2x=5[/tex]
[tex]\mathrm{Divide\:both\:sides\:by\:}2[/tex]
[tex]\frac{2x}{2}=\frac{5}{2}[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]x=\frac{5}{2}[/tex]
[tex]x=2.5[/tex]
~lenvy~
Given that ABCD is a rhombus. Prove ∠1≅∠2.
Answer:
1) ABCD is a rhombus
2) All sides of a rhombus are equal.
4) SSS
5) CPCTC
How does f(t) = 3 x 9 ^t change over the interval from t = 6 to t = 7?
Answer:
sorry got it wrong on the first try. Increases by 800% is the answer
Step-by-step explanation:
put x = 3 into f(x)=6x and you get f(x) = 18
Put x = 4 into f(x) and you get f(x) = 24
Subtract those two. 24 - 18 = 6
Also, f(x) = 6x it will always be 6 away from the next x you put into the equasion.
Or better said, it will be 6 more from 6x, because you are changing the x to X+1, hence,
6(x+1) = 6x + 6.
+6, it increases.
How many eighths do you shade to equal 1 half?
3
4
1
2
4
Step-by-step explanation:
it half of 8 4/8 or 1/2 that how I got it