Answers
Answer:
[tex]A=522.97\ \text{cm}^2[/tex]
Step-by-step explanation:
Given that,
The diameter of the cylinder, d = 8 cm
Radius, r = 4 cm
Height of the cylinder, h = 16.8 cm
We need to find the surface area of this cylinder. The formula for the surface area of the cylinder is given by :
[tex]A=2\pi r^2+2\pi rh\\\\=2\pi r(r+h)\\\\=2\times \dfrac{22}{7}\times 4\times (4+16.8)\\\\=522.97\ \text{cm}^2[/tex]
So, the surface area of the cylinder is [tex]522.97\ \text{cm}^2[/tex]
Related Questions
Nine times the sum of a number and 6 equals 7. nown number
Answers
Help with this question plzz
Answers
Answer:
I think it is 4 white and 3 blue
Step-by-step explanation:
Because they have 3 cups of white then 6 cups of white so i think they multiplied it. Then they have 4 cups of blue then 8 cups of blue. So if you multiply it, it will give you the answer. I hope this is right and it helped and can you mark me brainliest!!!!!!!!
At a restaurant, the amount of your bill before taxes and tip is $19.83. A 6% sales tax is applied to your bill, and you leave a tip equal to 19% of the original amount. Use mental math to estimate the total amount of money you pay to the nearest dollar.
Answers
Answer:
$24.7875
Step-by-step explanation:
Step one:
given data
your bill before taxes and tip is $19.83
6% sales tax
tip equal to 19% of the original amount.
Required
The total expenses
Step two:
let the total expenses be y
let us calculate the cost of tax and the tip
Tax
=6/100*19.83
=0.06*19.83
=$1.1898
Tip
=19/100*19.83
=0.19*19.83
=$3.7677
Total
Y= 19.83 +1.1898 +3.7677
Y= $24.7875
please help!! I will give brain liest for whoever answers them right
Answers
Answer:
1 - 6x+8
2 - 4y+5
3 - 7g+5
4 - 2w+4
5 - 14d-12
6 - -3r+5
7 - 8
8 - -10p+10
carlos earned 57 points on one section of a test and 26 points on the other section. Which equation expresses his total score.
HELP PLS BROOO
Answers
Hi can someone please help me with this question
Answers
Answer: B. 3x + 1/5
tom's pencil is longer than Ellen's pencil:
5x + 2/5 - (2x + 1/5) = 5x - 2x + 2/5 - 1/5 = 3x + 1/5 (cm)
Step-by-step explanation:
Carmen runs 4 miles in 30 min. At the same rate, how many miles would she run in 48min?
Answers
Answer: 360 miles hope this helps :D
Step-by-step explanation: 30/4= 1 mile every 7.5 min
7.5min times 48 equals 360 miles
Please help everything you need is on the picture.
Answers
What's the rate of inflation, this one will be worth 100 points for whoever gives me the correct answer and brainliest (If I can spell)
Answers
Step-by-step explanation:
it is 4.5% rate in inflation
I think it helps you
Answer:
a 4.5 % rate in change
Step-by-step explanation:
Factor x2 – 8x + 15.
Which pair of numbers has a product of ac and a sum of b?
What is the factored form of the trinomial?
Answers
Answer:
x^2-8x+15
X^2+(a+b)X+ac
=X^2-(5+3)X+(1)(15)
a+b=8
ac=15
=x^2-5x-3x+15
=x(x-5)-3(x-5)
=(x-3)(x-5)
Answer:
a) -3 and -5
a) (x - 3) (x - 5)
Step-by-step explanation:
What is the value of the expression
245-4) - 3 x (2+1)
7
19
51
1.75
Answers
Answer:
Step-by-step explanation:
(245 - 4) - 3 x (2 + 1)
241 - 3 x 3
241 - 9
232
or if u wrote the problem wrong
(45 - 4) - 3 x (2 + 1)
41 - 3 x 3
41 - 9
32
actually comment what the actual equation is and I'll solve that, bc I don't think you typed it right
Which ordered pair is a solution of the equation?
52 - 2y = 18
Answers
Answer: y=17
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
52−2y=18
52+−2y=18
−2y+52=18
Step 2: Subtract 52 from both sides.
−2y+52−52=18−52
−2y=−34
Step 3: Divide both sides by -2.
−2y
−2
=
−34
−2
y=17
ACTIVITY #1:
A. Write each number in scientific notation.
1. 38,000,000,000
4.0.000000001
2. 2,016,000,000,000 5. 0.000000001007
3. 0.000000000091306
Answers
Answer:
baaababababbabababab
For each 13 mm of coloured fabric Gordon uses to make his curtains he also uses 1 cm of white fabric express the amount of white fabric to coloured fabric as a ratio in its simplest form
Answers
Answer:
[tex]\frac{10}{13}[/tex]
Step-by-step explanation:
In the question, the units of the length of both colored and white fabrics are not the same. So, convert the unit of the white fabrics into mm.
The length of colored fabric used = 13 mm.
The length of white fabric used = 1 cm
= 10 mm
To express the white fabric to colored fabric, we have;
[tex]\frac{length of white fabric used}{length of colored fabric used}[/tex] = [tex]\frac{10mm}{13mm}[/tex]
= [tex]\frac{10}{13}[/tex]
Thus, the amount of white fabric to colored fabric can be expressed as[tex]\frac{10}{13}[/tex].
A group of friends spent 1, 0, 2, 3, 4, 3, 6, 1, 0, 1, 2, and 2 hours online last night. What are the 1st and 3rd quartiles for this set of data?
Answers
Which of the following is an arithmetic sequence?
A 0,3, 8, 15, 24, 35, -..
B. 9, 4, -1, -6, -11, -16,
C. 1, 3, 6, 10, 15, 21,
D. -1, 0, 1, 0, 3, 0, ...
Answers
b
Step-by-step explanation: i don know
What is the slope of the line represented by the equation y = 4/5x-3?
Answers
Answer:
The slope is 4/5
Step-by-step explanation:
A perfectly spherical scoop of ice cream has a surface area of 36π cm2 and the same diameter as the open end of the ice cream cone it rests on. The cone is 11 cm tall. If the ice cream melts into the cone, what volume of ice cream will overflow?
Answers
Answer:
9.43 cm³
Step-by-step explanation:
Given that the surface area of the spherical scoop is 36π cm², we find its radius. The surface area of a sphere, A = 4πr² where r = radius
36π cm² = 4πr²
r² = 36π cm²/4π
r² = 9 cm²
r = √(9 cm²)
r = 3 cm
So, the volume of the spherical scoop of ice cream is thus V = 4πr³/3
= 4π(3 cm)³/3
= 4π(9 cm³)
= 36π cm³
The volume of the ice cream cone is V' = πr²h/3 where r = radius of cone = radius of spherical scoop = 3cm and h = height of cone = 11 cm
V' = π(3 cm)² × 11 cm/3
= 9π cm² × 11 cm/3
= 33π cm³
So, the volume of ice cream that will overflow is thus V - V' = 36π cm³ - 33π cm³
= 3π cm³
= 9.43 cm³
a/k + b = c/k make k as a subject
Answers
Answer:
By "make k as a subject", I assume you mean to solve for k?
If that is the case, then the answer is:
k = (c - a) / b
Step-by-step explanation:
Let's solve for k
a/k + b = c/k
Multiply both sides by k:
a + bk = c
Group terms containing k on the left:
bk = c - a
Divide both sides by k:
k = (c - a) / b
|-1|=-1 is this true
Answers
Answer:
False
Step-by-step explanation:
The question is asking for the absolute value of -1. The absolute value is the distance of a number from 0. Think of a number line. -1 is one place away from 0, so the absolute value of -1 is 1. Therefore, the statement is not true.
A line passes through the points (2, –2) and (–6, 2). The point (a, –4) is also on the line. What is the value of a?
A coordinate plane.
–6
–1
1
6
Answers
m=rise/run OR
m=(2+2)/(-6-2)
m=4/-8
m=-1/2
second we need to find the equation for the line using point-slope form:
y-(-2)=-(1/2)(x-2)
to find "a" we plug in the given y value and solve for x (in this case x=a):
so, a=6 and the point becomes (6,-4)
Answer:
the answer is option 4: 6
Step-by-step explanation:
Which of the following shapes are quadrilaterals ? Please choose 2 correct answers !!!!!!!!!! Will mark Brianliest !!!!!!!!!!!
Answers
Answer:
B and D
Step-by-step explanation:
quadrilaterals only have 4 sides hence the prefix quad
Answer:
B and D
Step-by-step explanation:
C has five sides and A has three sides with a curve, curve doesn't count as a side
Which matrix will always give a determinant of 0?
a matrix having all nonzero numbers
a matrix not being the identity matrix
a matrix not having equal rows
a matrix having two equal rows
Answers
Answer:
It's D, a matrix having two equal rows
Step-by-step explanation:
Select an expression equal to 6(4q + 8r)
Answers
Answer: B: 24q+48r
Step-by-step explanation: 6(4q+8r)
=(6)(4q+8r)
=(6)(4q)+(6)(8r)
=24q+48r
Is the relation a function or no function?
Answers
Answer: I think is a function
Step-by-step explanation:
why is the graph of the rose curve r=4cos2theta
Answers
Answer:
The correct answer is B.
Step-by-step explanation:
Any point can be represented in polar form by using the notation:
[tex]A = (r, \theta)[/tex] (1)
And any polar function must satisfy the following definition:
[tex]r = f(\theta)[/tex]
Let [tex]r(\theta) = 4\cdot \cos 2\theta[/tex], where [tex]r[/tex] is the radial distance of any point of the curve from origin and [tex]\theta[/tex] is the direction of any point of the curve with respect to +x semiaxis, measured in radians.
Finally, we proceed to graph the function with the help of a graphing tool and attach the result.
Besides, we must remember that cosine is a bounded function, which means that domain and range in rectangular coordinates are represented by:
[tex]Dom\{f\} = [-4,4][/tex], [tex]Ran\{f\} = [-4,4][/tex]
Then, the correct answer is B.
I need some help ? Does anyone know this:)I’m new too this thats why im asking loll
Answers
A= L x W
9 x 4 = 36
Answer:
36
Step-by-step explanation:
area of rectangle =length x width
givens:
width=4 units
length=9 units
area=9x4=36 units squared
Can some one please solve these 10 questions I'm kinda confuse also please show the work for each willnmarl brianliest
Answers
Answer:
PEMDAS
Step-by-step explanation:
Follow this order to solve problems
Solve in
Parentheses
then
Exponents
then
Multiplication
or
Division
then
Addition
or
Subtraction
from left to right
Try to solve it on your own using this
Just to help ya out next time you have to answer these kind of questions
Answer:
1. 14 2. 64 3. 15 4. 27 5. 70 6. 62 7. 446 8. 23 9. 27 10. 102
Step-by-step explanation:
1. 4 + 84 / 7 - 2 2. 5 x 5 - 7 +82 / (2 x 1) + 5 3. (52-43) / 3 x (2 + 3)
4 + 12 -2 25 - 7 + 82 / 2 + 5 9 / 3 x 5
16 - 2 25 - 7 + 41 + 5 3 x 5
14 18 + 41 + 5 15
59 + 5
64
4. 40 / 1 + 3 - (3 x 7) + 7 - 2 5. 3 + 6 x 12 - 5 6. (54 / 6) - 7 + (4 x 15)
40 + 3 - 21 + 7 - 2 3 + 72 - 5 9 - 7 + 60
43 - 21 + 7 - 2 75 - 5 2 + 60
22 + 7 - 2 70 62
29 - 2
27
7. 5 x (49 / 1 - 5) x 2 + 9 - 3 8. 20 / 4 + 3 x 6 9. 19 + 63 / 9 x 3 - 13
5 x 44 x 2 + 9 - 3 5 + 18 19 + 7 x 3 - 13
220 x 2 + 9 - 3 23 19 + 21 - 13
440 + 6 40 - 13
446 27
10. (64 / 8) - 5 + (33 x 3)
8 - 5 + 99
3 + 99
102
please help my assignment is missing and I really need to finish it.
Answers
Answer: it is D
Step-by-step explanation:
f ( x ) = x/3 -2 f (42 )
Answers
Answer:
f(42) = 12
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = x/3 - 2
f(42) is x = 42
Step 2: Evaluate
Substitute in x: f(42) = 42/3 - 2Divide: f(42) = 14 - 2Subtract: f(42) = 12