Answer:
28π
Step-by-step explanation:
surface area of a cylinder formula:
2πr²+2πrh
plugging in what we know
2π2²+2π2*5
8π+20π= 28π
Answer:
28π cm2
Step-by-step explanation:
they wrote the answers wrong the answers A
got it right on the test
"28π cm2"
Nate has 1.44 pounds of meat. He uses 0.24 pound of meat to make one hamburger. How many hamburgers can Nate make with the meat he has?
Answer: 6
Step-by-step explanation: 1.44 divided by 0.24 equals 6
please help me oout with this one and dont just put a random answer so u can get points its not like u can buy a CAR with it lol
Answer:
V - 1099.55742876
SA - 769.690200129
Step-by-step explanation:
The volume of a cone is denoted by the formula:
V = 1/3 * h * pi * r^2
We can substitute in the values we are given:
V = 1/3 * 10.5 * pi * 10^2
V = 3.5 * 100 * pi
V = 350pi
This is about: 1099.55742876
The formula for the surface area of a cone is:
SA = pi * r^2 + pi * r * s
We can substitute what we have:
SA = pi * 10^2 + pi * 10 * 14.5
SA = 100 pi + 145 pi
SA = 245 pi
This is about: 769.690200129
Let alpha and beta be the radiant measures of two angles. Then sin left parenthesis 2 alpha plus 2 beta right parenthesis is equal to
Answer:
sin2αcos2β + cos2αsin2β
Step-by-step explanation:
Given that
sin(A+B) = sinA cos B + cos A sinB
According to the question;
sin(2α+2β) = sin2αcos2β + cos2αsin2β
where A = 2α and B = 2β
It takes Chris 30 minutes to walk to work. If he drives, it takes him 1/3 of that time.
What is the latest time that Chris can leave to drive to work and arrive by 8:00?
Answer:
7:50
Step-by-step explanation:
cause.....
30/3=10
8:00- 10 min = 7:50
in 2decimal places 39.98015
Answer:
39.98
Explanation:
39.98015
0 < 5, so 2nd decimal stays at 8
Answer:39.98
Step-by-step explanation:
Hey! I’m not exactly sure what you’re asking, but if the question is how to write that number in only two decimal places, it would be 39.98. We would round it up or down in the hundredths place because that is the second decimal place. Since the number behind the 8 is 0, we can’t round up or down so we would just leave it how it is and cut off the rest.
Hope this helped! :D
Sorry it I didn’t answer what you were asking! You can comment and I will answer any further questions!
use the inverse operation to solve the following equation w + 125.2 = 255
Answer:
w=129.8
Step-by-step explanation:
w + 125.2 = 255
-125.2
w=225-125.2
w=129.8
Answer:
Hope this helps please mark me as branlist.
Step-by-step explanation:
Subtract 125.2 from both sides:
w=125.2=255
w=125.2-125.2=255-125.2
w=255-125.2
w=129.8
what term is used to best describe the spread of the data set?
A. Median
B. Mode
C. Mean
D. Range
I'm not that sure but I think the answer is Median (A)
Help please. It’s due tomorrow and I have in person class and I actually don’t understand. (It’s ok if not)
Answer:
I would’ve worked it out but it’s been years
Step-by-step explanation:
PLLLLLLLS HELP WILL GIVE BRAILEST 20 POINTS
colby is standing next to a water tower, he is 6ft tall and casts a 3 foot shadow.
if the water tow cast a 60 foot tall shadow, how tall is the tower?
30
120
180
240
Answer:
the water tower casts 60 ft shadow its 120 ft tall
Step-by-step explanation:
Answer:
180 I hope this is the correct answer
Use the distributive property to remove the parentheses. 5(v+6)
Answer:
5 x 6v
Step-by-step explanation:
what's the value of "x"? Show all your work.
Answer:
x=9
Step-by-step explanation:
a²+b²=c²
x²+6²=(√117)²
x²+36=117
x²=81
x=9
Answer:
3[tex]\sqrt{17}[/tex] or 12.37 cm
Step-by-step explanation:
use the Pythagorean Theorem:
6² + [tex]\sqrt{117}[/tex]² = x²
36 + 117 = x²
x² = 153
x = [tex]\sqrt{153}[/tex] which is [tex]\sqrt{9}[/tex][tex]\sqrt{17}[/tex] or 3[tex]\sqrt{17}[/tex]
in decimal form, 'x' is approx 12.37
Ivan says that the shape at the right is n octagon. Do you agree or disagree? Explain
Answer:
Disagree
Step-by-step explanation:
An octagon has eight sides while the shape on the right has nine sides.
Answer:
No
Step-by-step explanation:
The shape shown in the picture has 9 sides(you can count) and therefore is not an octagon because octagons only have 8 sides.
There are 3000 student in the school 30% of the student are girls find
A) The total number of girl
B) The total number of student
Step-by-step explanation:
3000 [tex] 3000 \div 30 = 1000[/tex][tex]3000 \times 30 = 90000[/tex]What is the sequence of transformations?
9 Pts
A
Answer:
Its a
Step-by-step explanation:
An explanation is required or else not brainliest.
Answer:
16 meters
Step-by-step explanation:
[tex] In\: \odot F, \: \overline {RS} [/tex] is tangent to the circle at point R and FR is radius.
[tex] \therefore RF\perp RS[/tex] (Tangent radius theorem)
[tex] \therefore m\angle FRS = 90\degree [/tex]
So, [tex] \triangle FRS[/tex] is right angled triangle and FS is its hypotenuse.
Let FR = FT = r
FS = FT + ST = r + 9
Now, by Pythagoras theorem:
[tex]FR^2 + RS^2 = FS^2 \\ \therefore r^2 + (15)^2 = (r + 9)^2 \\ \therefore \cancel{ r^2} +225 = \cancel{ r^2} + 18r + 81\\ \therefore \: 225 = 18r + 81 \\ \therefore \: 225 - 81= 18r \\ \therefore \: 144= 18r \\ \therefore \: r = \frac{144}{18} \\ \therefore \: r =8 \: m\\ \implies \: d = 2r = 2(8) = 16 \: m[/tex]
Thus, the diameter of the fountain is 16 meters.
Which equation represents the line that is perpendicular to y = 5x + 4 and passes through the point (-5, 2)?
Answer:
y = (-1/5)x + 1
Step-by-step explanation:
The slope of this perpendicular line is the negative reciprocal of the slope of the given line y = 5x + 4: -1/5.
Applying the slope-intercept form of the equation of a line, we get:
2 = (-1/5)(-5) + b, or:
2 = 1 + b
Therefore, b = 1 and the desired equation is:
y = (-1/5)x + 1
Please, if you are given answer choices, share them.
What is the value of the expression 2 x 33 + 17 + 5 x 8
Answer:
Correct answer of this question is 123
Answer:
123
Step-by-step explanation:
sounds funny but its true
(2x33)+17+(5x8)
do parenthensies first
2x33=66
5x8=40
40+66=106=17=123
PLEASE ASAP ILL GIVE BRAINLIEST.
Answer:
A basket ball being held
Step-by-step explanation:
Hope this helps you out
can someone pls help
Answer:
Step-by-step explanation:
Answer:
b.
Step-by-step explanation:
I need help with this!
Answer:
4.25
Step-by-step explanation:
Since this is a parallelogram, the parallel sides have the same value.
And since the perimeter of a parallelogram is all of the sides combined, this means
WR + RJ + JS + WS, or
5x + 5x + 3x + 2 + 3x +2 = 16x + 4
The perimeter is 16, so
16x + 4 = 16
16x = 12
x = 0.75
Substitute into 3x + 2, or WS.
2.25 + 2 = WS
WS = 4.25
Step-by-step explanation:
perimeter of parallelogram =16
2(WR+RJ)=162(5x+3x+2)=1610x+6x+4=1616x=16-4x=12/16x=3/4so value of WS=3x+2
3×3/4+24.25cmhope it helps
stay safe healthy and happy.ncmmkksms ndsjms sks dnc dd jdjsks sbds
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What value of x makes the equation x+ 38 = 72 true?
Answer:
x = 34
Step-by-step explanation:
Given
x + 38 = 72 ( subtract 38 from both sides )
x = 34
Answer:
X=34
Step-by-step explanation:
Well, what you can do is bring the 38 to the other side and make it negative so you can subtract 38 with the 72. The 72-38 is= 34 and so x= 34
x+38=72
x=72-38
x=34
Hope this helps! ^^
A chemist has a solution that has 0.55 grams of alcohol per 1 mL of solution. If she needs 975 mg of
alcohol, how much solution does she need? Round your answer to the nearest hundredth. (1 gram = 1,000
milligrams)
Answer: 5000000
Step-by-step explanation:
0.55 x 1
975 = 5000000
For what values of x and y are the triangles congruent
Answer: b maybe
Step-by-step explanation:
Answer:
D.) x=5, y=2
Step-by-step explanation:
Triangle ABC
Hypotenuse, 2(5) + 3 = 13
Base,4(2)+2= 10
Triangle DEF
Hypotenuse, 3(5) - 2 = 13
Base, 9(2) - 8 = 10
Graph the line given by the equation: 2x+4y=-3
The area of a circle is 28.74cm2.
Find the length of the radius rounded to 2 DP.
Answer:
3.025 = 3.03
Step-by-step explanation:
A = (3.14)(r)(r)
28.74/3.14 = 9.152866
3.025 = r
Solve for x. Round your answer to the nearest tenth.
Answer:
x = 11.1
Step-by-step explanation:
Cosine theta = adjacent/hypotenuse
cos 42 = x/15
x = 15 cos 42
x = 11.1
Two phone companies one is 11/+.16/ min And another is 20+.11/min How many minutes will make both equal amounts
Answer:
Company one charges $11 + $0.16 per min.
Then if you talk for x minutes, the cost will be:
C₁(x) = $11 + ($0.16 per min)*x
For company two, the prize is $20 + $0.11 per min, and if yo talk for x minutes, the cost will be:
C₂(x) = $20 + ($0.11 per min)*x
Now we want to find the value of x, the number of minutes, such that the cost is the same with both companies.
C₁(x) = C₂(x)
$11 + ($0.16 per min)*x = $20 + ($0.11 per min)*x
($0.16 per min)*x - ($0.11 per min)*x = $20 - $11
($0.05 per min)*x = $9
x = $9/($0.05 per min) = 180 mins
If you speak for 180 minutes, the cost is the same in both companies.
Attendance at state park throughout the year is found to be periodic and can be modeled by a sine function. The attendance ranges from a low approximately 1,00,000 visitors in september to a high of approximately 2,00,000 visitors in march. If t is the month number, where t=1 is january, and N(t)is the attendance, in millions, of visitors, which of the functions can be used to model this behavior A: N(t)=0.5sin(π/6 t)+1.5 B: N(t)=1sin(π/6 t)-1 C: N(t)=0.5sin(2πt)+1.5 D: N(t)=1.5sin(π/6 t)+0.5
Answer:
A. N(t) = 0.5·sin((π/6)·t) + 1.5
Step-by-step explanation:
The given parameters are;
The model of the periodic function = Sine function
The low of the attendance = 1,000,000
The month of the low in attendance = September
The high in attendance = 2,000,000
The month number = t,
The month of January is represented by, t = 1
N(t) = The attendance in millions of visitors
The generic sine function which is given as y = a·sin(b·x + c) + d, ranges from -1 to 1
Period = 12 = 2·π/b
∴ b = 2·π/12 = π/6
c = 0
a = The amplitude = (The maximum - The minimum)/2 = (2,000,000 - 1,000,000)/2 = 500,000
Therefore, a = 0.5×1,000,000 = 0.5·N(t)
Therefore, given that the minimum, [tex]N(t)_{min}[/tex] = 1, we have;
For sin(b·x + c) = -1, a·sin(b·x + c) = -0.5, for the minimum of 1,000,000 = 1 × 1,000,000, we have;
a·sin(b·x + c) + d = 1
∴ -0.5 + d = 1
d = 1.5
Therefore, we have;
N(t) = 0.5·sin((π/6)·t) + 1.5
Answer:
N(t) = 0.5sin((π/6)t) + 1.5
Step-by-step explanation:
Josh has drawn a map of three destinations he wants to visit. What is the distance between destinations A and B
Answer:
73.5
Step-by-step explanation:
Please find the complete question in the attached image
Remember the notation SOHCAHTOA
We would be using cos because we have been given the hypotenuse and we are to determine the adjacent value
cos 37 = adjacent / hypotenuse
cos 37 = adjacent / 92
0.7986 = adjacent / 92
adjacent = 0.7986 x 92 = 73.5