Answers
===============================================================
Explanation:
If you used scissors to cut a vertical slice down the lampshade, then it can be unrolled to form a rectangle.
The horizontal portion of this rectangle is the distance around the circle, which is the perimeter of the circle, or the circumference. That's C = 2pi*r. Check out the diagram below to see what I mean.
The diagram shows that the diameter is 20 cm, so the radius is half that at 20/2 = 10 cm.
The circumference is C = 2*pi*r = 2*pi*10 = 20pi cm exactly
The height of the rectangle is the height of the cylinder, which is h = 30 as shown in the diagram.
The area of the rectangle is length*height = (20pi)*(30) = 600pi square cm exactly.
If we were to use something like pi = 3.14, then its approximate area is 600*pi = 600*3.14 = 1884 square cm
Let's bump this up by 10%. To do so, we'll multiply by 1.10
1.10*1884 = 2072.4
Related Questions
Jocelyn is going to the amusement park, where she has to pay a set price of admission
and another price for tickets to go on each of the rides. The total amount of money
Jocelyn will spend is given by the equation y 3.5x + 28, where y represents the
total amount of money, in dollars and cents, and x represents the number of rides
Jocelyn goes on. What could the number 28 represent in the equation?
Answers
What is the percentage change from 99 to 35
Answers
Step-by-step explanation:
(35-99):99*100 =
(35:99-1)*100 =
35.353535353535-100 = -64.65
Percentage change from 99 to 35 is -64.64% .
Negative sign indicates that the number is decreased from the initial value.
Percentage change : When a number is increased or decreased from its original value is termed as percentage change.
Given, that number changes from 99 to 35.
Formula of percentage change = [tex]\frac{Final - Initial}{Initial}[/tex] × [tex]100[/tex]
Final number = 35
Initial number = 99
Substitute the values in the above formula,
Percentage change = [tex]\frac{35 - 99}{99} *100[/tex]
Percentage change = -0.6464 *100
Percentage change = -64.64%
Negative sign indicates that the number is decreased from the initial value.
Know more about percentage change,
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A system of equations is shown below. Which statement about the ordered pair (-7,-3) is true?
3x + 3y = - 30
2x + y = -17
a) It is not a solution to either equation.
b) It is one of many solutions to the system.
c) It is the only solution to the system.
d) It is a solution to the first but not the second equation.
Answers
C) It is the only solution to the system.
Step-by-step explanation:
3x + 3y = -30
2x + y = -17
3(-7) + 3(-3) = -30
-21 + -9 = -30
-30 = -30
True
2x + y = -17
2(-7) + (-3) = -17
-14 + -3 = -17
-17 = -17
True
It must be the point of intersection so it is the only solution to the system
Please I need help Please I need help Please I need help Please I need help Please I need help
Answers
Answer:
please help my friend 99ooooooooooooooooooooooooooooooooooo9ooooo my mjjjkjjidhjubsjuxsvuvjxehxf
The dot plot below shows the numbers of years of experience of the teachers at City High School.
++
0 2 4 6 8 10 12 14 16 18 20
Years of Experience
Determine where a gap is present in the data set.
between 14 and 18 years
between 5 and 7 years
oooo
between 2 and 4 years
between 11 and 19 years
Submit
Reset
Answers
Answer: Between 14 and 18 years
Step-by-step explanation:
There are no dots in that area.
Solve the compound inequality. Graph the solution
Answers
Answer: Choice B
Work Shown:
[tex]-2 \le 2x-4 < 4\\\\-2+4 \le 2x-4+4 < 4+4\ \text{ ... add 4 to all sides}\\\\2 \le 2x < 8\\\\2/2 \le 2x/2 < 8/2\ \text{ ... divide all sides by 2}\\\\1 \le x < 4\\\\[/tex]
This says that x is between 1 and 4; it can equal 1, but it can't equal 4.
To visually represent this, we'll have a closed circle at 1, an open circle at 4, with shading in between these circles. This is represented by graph B.
Let f(x) = -6x + 3 and g(x) = 5x + 4. Find f • g and state its domain.
Answers
Answer:
30x + 21 is your best answer
Does 9, 10 and 15 equal a right triangle
Answers
Answer:
By virtue of The pythagorean theorem,in a right triangle squares of the similar two sides equal the square of The largest side.Only 9,12 and 15 fit this rule.
Step-by-step explanation:
Hope it help you If you have any questions can ask in the comments
Pleaseee help ill mark brainliest please include explanation too
Answers
Answer:
TO place the triangle ABC on EDF flip the triangle so the you get the mirror image of the triangle and then place it on top of the triangle EDF
hope this helps!
find a rational number halfway in between the two numbers. 1/3 and 3/10
Answers
Answer:
39/60 is a rational number halfway b/w the given numbers.
Step-by-step explanation:
Add both of these numbers and then divide the result by 2.
(1/3+3/10)/2
=((30+9)/30)/2
=(39/30)*1/2
=39/60
HELPP MEEEEEEEEEEE PLSSSSSSSSSSSSSSS
Answers
Answer:
hmm looks like you are over thinking it its just 20-8
Step-by-step explanation:
solve the equation
4(2^m+1)-16^m=0
Answers
That’s the answer
[tex]\\ \rm\longmapsto 4(2^m+1)-16^m=0[/tex]
[tex]\\ \rm\longmapsto 8^m+4-16^m[/tex]
take 4common[tex]\\ \rm\longmapsto 4(2^m+1-4^m)=0[/tex]
[tex]\\ \rm\longmapsto 2^m-4^m+1=0[/tex]
[tex]\\ \rm\longmapsto 2^m=4^m[/tex]
[tex]\\ \rm\longmapsto 2^m=2^{2^m}[/tex]
[tex]\\ \rm\longmapsto 2^m=m[/tex]
[tex]\\ \rm\longmapsto m=\dfrac{1}{2}[/tex]
least common multiple of 2 and 3?i forgot how to do this completly over the summer lol
Answers
Answer:
6
Step-by-step explanation:
Multiples of 2: 2, 4, 6, 8, 10
Multiples of 3: 3, 6, 9, 12, 15
Brainliest, please!
Sophie bought snacks for her team's practice. She bought a bag of chips for $2.49 and
a 12-pack of juice bottles. The total cost before tax was $27.57. Write and solve an
equation which can be used to determine x, how much each bottle of juice costs?
Answers
how can i solve that equation
Answers
Answer:
C and E
Step-by-step explanation:
[tex]3 \tan( \beta ) = 2. \: \: \: \: \tan( \beta ) = \frac{2}{3} [/tex]
[tex] \frac{h}{x} = \tan( \beta ) = \frac{2}{3} [/tex]
[tex]if \: \: h = 2 \: \: \: x = 3 \: \: \: and \: \: \: t = \sqrt{ {h}^{2} + x } [/tex]
C. [tex]t = \sqrt{13} [/tex] ✅
○♧○♧○♧○♧○♧○♧○♧○♧○♧○♧○♧○
[tex] if \: \: \: h = 4 \: \: \: \: x = 6 \: \: \: and \: \: \: t = \sqrt{ {h}^{2} + {x}^{2} } [/tex]
E. [tex]t = 2 \sqrt{13} [/tex] ✅
The salary of A is 25% above that of B. How Much percent is B's salary below that of A?
Answers
Answer: 20% lower then A's salary.
Step-by-step explanation:
Determine whether each function is one-to-one, onto, both, or neither.
Answers
===================================================
Explanation:
We see that the function passes the horizontal line test. It is impossible to draw a single horizontal line and have that horizontal line cross the curve at multiple points. It's similar to the vertical line test.
Since the curve passes the horizontal line test, that makes it one-to-one. Any y value is paired with a unique x value, and vice versa.
The function is also onto because we can generate any y value output we want. The curve extends forever upward and downward. The range is the set of all real numbers.
Therefore, the function is both one-to-one and onto.
---------------------
Extra info:
The term "injective" is the same as "one-to-one" The term "surjective" is the same as "onto"The term "bijective" is a combination of injective and surjective at the same timeJulio, Amari, and Henry take turns unloading a trailer holding 240 cases of soda. First, Julio unloads 15 of all the cases. Next, Amari unloads 117 of the remaining cases.
How many cases of soda are still left on the trailer for Henry to unload?
Answers
Answer:
answer: 55
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
240 - 15 = 225
225 - 117 = 8
if LN=9x-39, LM=47, and MN=3x+10 find MN
Answers
Answer:
11
Step-by-step explanation:
ML+LN=MN solve for x
(47)+(9x-39)=(3x+10) = 1/3
x = 1/3
plug into MN
3(1/3)+10=11
what is the total value in fraction.
Answers
Answer:
When we divide a whole into equal parts, each part is a fraction of the whole. For example, Fraction of a collection: Fractions also represent parts of a set or collection.
if my answer helps you than mark me as brainliest
What is six hundred five thousand, five hundred written in standard form
Answers
Answer:
the answer is in given bellow:
605500.
A dressmaker needs to cut 12-inch pieces of ribbon from rolls of ribbon that are 6 feet in length. How many 12-inch pieces can the dressmaker cut from 10 of these rolls of ribbon?
Before you try that problem, answer the question below.
How many inches of ribbon does the dressmaker have, in total?
Answers
Answer:
he can cut 60 strips or ribbon
Step-by-step explanation:
The dressmaker has 720 inches of ribbon
from each roll of ribbon, he can make 6 12-inch pieces or ribbon
she has 10 rolls
so 6(strips per roll) x 10(amount of rolls) = 60 strips :)
what is the answer to this? please
Answers
Step-by-step explanation:
hopefully it makes sense and is visible
:)
PLEASE HELP!!! I will give you brainliest!
Answers
Answer:
6
Step-by-step explanation:
The range of the middle 50% is the right side of the box subtracting the left side of the box
14-8
6
x + 2x + 3x = 6 . Find x
Answers
Answer:
1
Step-by-step explanation:
x + 2x + 3x = 6
Add the like terms,
6x = 6
=> x = 6/6
=> x = 1
Step-by-step explanation:
x+2x+3x=6
x+5x=6
6x=6
x=6÷6
x=1
Two functions are given ; f(x) = x^2+2x-1 and g(x) =5x+3 . Find the value of x if f(x) = g(x). . Also find f(-4) and g(9
Answers
Explanation:
Find x:
f(x) = g(x)
x^2+2x-1 = 5x+3
x^2+2x-5x-1-3 = 0
x^2-3x-4 = 0
(x-4)(x+1) = 0
=> x-4 = 0 => x = 4
=> x+1 = 0 => x = -1
Find f(-4):
(-4)^2 + 2(-4) - 1
= 16 - 8 - 1
= 7
Find g(9):
5(9) + 3
= 45 + 3
= 48
can someone explain to me how to do both of this question? tyvm
Answers
Answer: Hope this helps :)
Step-by-step explanation:
a) =Let the boys be x
girls = x-10
so
x + x - 10 = 50
or, 2x = 60
so, x = 30
boys = 30
girls = 30-10 = 20
Therefore, 30 boys participated in the activity.
b) = Let the zilong's stamp be x and miya's stamp be y
so
first
x+y = 40
y = 40-x
now
x - 10 = 2y
x-10 = 2(40-x)
x-10 = 80-2x
or, 3x = 90
so, x = 30
then y = 40-x
y = 40-30 = 10
Therefore, Zilong had 30 stamps and Miya had 10 stamps before.
Solve each proportion
Answers
Step-by-step explanation:
[tex]thank \: you[/tex]
There are 40 students in a summer cohort. Of those students, 20 are taking an accounting course, and 25 are taking a Spanish course. A total of eight students are taking both courses. How many students are not taking either course
Answers
Explanation:
Students that takes course one or both courses.
20 + 25 = 45
Students that take course. Not including both courses students.
45 - 8 = 37
Students that doesn’t take course.
40 - 37 = 3
3-7 + 2 2/6 * 4/5 =
what’s the answer?
Answers
3 - 7 + 2 2/6 * 4/5
-4 + 14/6 * 4/5
-4 + 7/3 * 4/5
-4 + 28/15
-32/15