Answer:
50π cm²/s
Step-by-step explanation:
Area of the circle A = πd²/4
Rate at which the area is changing with time is expressed as;
dA/dt = dA/dd*dd/dt
dd/dt is the rate at which the diameter is changing with time
dd/dt = 5cm/sec
dA/dd = 2πd/4
dA/dd = πd/2
Given that d = 20cm
dA/dt = dA/dd*dd/dt
dA/dt = πd/2*5
dA/dt = 20π/2 *5
dA/dd = 10π * 5
dA/dd = 50π cm²/s
Hence the area is changing at the rate of 50π cm²/s
can someone pls help
A movie theater is showing 1 musical and 7 other movies (8 movies in total). Each type of movie is equally likely to be chosen.
If 1,000 people go to the movies, how many people are expected to choose a musical? (*Hint* create and solve a proportion to help you)
Answer:
125
Step-by-step explanation:
1,000/8 because all the outcomes are evenly likely
what is the mean of 1,5,8,4,5,7,6,6,2,3
Answer:
4.7
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
4.7
Step-by-step explanation:
[tex]1+5+8+4+5+7+6+6+2+3=47\\47/10=4.7[/tex]
whats the answer?????????
Bryson hopes to win a three-day vacation in a drawing that is being held at his office. He purchased 40 raffle tickets. There were 500 raffle tickets sold. What is the theoretical probability of Bryson winning the trip?
StartFraction 2 over 25 EndFraction
One-fifth
Four-fifths
StartFraction 500 over 40 EndFraction
Answer:
A is correct 2/25.
Step-by-step explanation:
Thats what answer I got from doing the math
product of -3/7a and -21/15b
Answer:
182857142857/100000000000
Please help if you could! Thank you :D
Answer:
ur mummy
Step-by-step explanation:
ur mum is ur mum so yeah
➥ [tex]p=6a+8+12a+6a+8+10a-4[/tex]
[tex]p=6a+12a+6a+10+8+8-4[/tex]
[tex]p=34a+12[/tex]
Find the value of ''a''➽⇨ [tex]p=34a+12[/tex][tex]250=34a+12[/tex][tex]250-12=34a[/tex][tex]238/34=34a/34[/tex][tex]a=7[/tex]➳➳➳➳➳➳➳➳➳
hope it helps...
have a great day!!!
PLEASE assist me in this geometry problem !!!
Answer:
B=9*5=45m²
P=4+5+3=12m
H=9m
Now
S.A=P*H+2B=12*9+2*45=198m²
V=BH=45*9=405m³
here
B:base area of rectangle
P=perimeter of triangle
H=length of rectangle
S.A=surface area
V=Volume
plz help i beg!! 50 points
Answer:
63.25 sq. ft
Step-by-step explanation:
the area of fig. =
(½×8×6)+(½×3.14×5²)
= 24 + 39.25
= 63.25 sq. ft
Answer:
The area of the figure is 63.25 square feet
Step-by-step explanation:
yes
https://brainly.com/question/14200006
Which atomic model is missing from this set? Bohr's model Dalton's model Rutherford's model Thomson's model Mark this and return
Answer:
Dalton’s model
Step-by-step explanation:
Dalton model is the only missing model. Dalton's model was the first atomic model: the atom represented as a solid, indestructible and indivisible mass. An idea that was already accepted by that time since the ancient Greeks.
Answer:
daltons
Step-by-step explanation:
Please help I really need help on this I would really appreciate it anything helps !
Answer:
AXE and CXD are vertical angles
AXF and FXD are supplementary angles
DXC and BXC are complementary angles
EXA and AXB are adjacent angles
AXC and CXD are supplementary angles
EXD and AXC are vertical angles
Step-by-step explanation:
Andres buys 3 boxes of markers. Each box has the same number of markers. Andres now has 15 markers. Write and solve an equation to find how many markers are in one box.
help needed ASAP
Answer:
The answer is five
Step-by-step explanation:
Because 5 times 3 equals 15.
That's just basic multiplying. (*^*)
Have a good day!
What is the arithmetic mean for 8,10,8,5,4,7,5,10,8
Answer:
57.8
Step-by-step explanation:
I am sure that this is the answer.
Answer:
57.8
Step-by-step explanation:
8+10+8+5+4+7+5+10+8 ÷9 = 57.8
Hope this helps!
f
(
g
(
−
4
)
)
f(g(−4))
Answer:
What
Step-by-step explanation:
What’s this
hi guys i need help
cosx = 3/5
sinx+tanx = ?
cosx = 3/5
sin²x + cos²x = 1
sin²x = 1- 9/25
sin²x= 16/25
sinx = 4/5
tanx = sinx/cosx
tanx = 4/3
Please please pretty please answer this :)
Answer:
The question ain't clear
plz answer question two<33
Answer:
C
Step-by-step explaination
C is false since 4^3=8
im confused on how to do this
Answer:
150
Step-by-step explanation:
Surface area is the area of all the surfaces (or sides). To find the surface area, find the area of one side of the cube. Since a side of a cube is a square, all the lengths are the same. So, 5*5= 25. There are 6 sides to a cube, so multiply 6 by one of the faces 's area (aka sides), so 6*25=150.
Which ordered pair is the best estimate for the solution to this graphed system of
equations:
Answer:
(2.1, -1.3)
Step-by-step explanation:
Each line represents the set of points that satisfy the equation.
That means there's only one point that satisfies both equations (and thus, is the solution) - the point where they cross.
We can see it's a bit to the right of x=2 and a bit lower then y=-1, so the (2.1, -1.3) point looks like the most plausible estimate.
If m
x=49, y =41
x=90, y=49
x=90 y=41
x=41 y=49
Answer:
90
Step-by-step explanation:
90
Answer two questions about Equations AAA and BBB: A. 2x-1+3x=0 B.5x-1=0. How can we get Equation BBB from Equation AAA? and is equation A and B equivalent?
Answer:
you would simplify equation a by combining 2x plus 3x. yes they are equivalent. you can use any x to make the equation true.
Step-by-step explanation:
Answer:
Multiply/divide both sides by the same variable expression
No
The diagram shows a right-angled triangle.
to
3 cm
8 cm
Find the size of angle x.
Give your answer correct to 1 decimal place.
Answer:
24.c
Step-by-step explanation:
the a sweer is 24.3 ..
You are mowing your neighbor's lawn. He is going to pay you $20.00 for the first two hours and $5.00 for anything after that. Which algebraic expression represents how much you will be paid for working h hours?
Answer: H = 35
Step-by-step explanation:
You do 20.00+5*h
HELP PLEASE What is the area of the regular trapezoid below?
A trapezoid has a base of 10 centimeters, height of 8 centimeters, and top side length of 6 centimeters.
64 Centimeters squared
80 Centimeters squared
240 Centimeters squared
480 Centimeters squared
Answer:
64 Centimeters squared
Step-by-step explanation:
Formula for the Area of a trapezoid:
A = a+b
----- h
2
a (base) = 6
b (base) = 10
h (height) = 8
6+10 = 16
16/2 = 8
8 times 8 = 64
The equation of the line of best fit is y=3x+2. x=the number of ice cream sales and y= the number of days. Answer the following questions. Show your work as proof.
a. How many days did it take, if the number of ice cream sales is $40?
b. How much ice cream was sold on day 8?
Step-by-step explanation:
y = 3(40) + 2y = 120 + 2y =122.using the midpoint formula, solve for the midpoint of the segment with these pairs of endpoints (-8,21) and (32,-2)
Answer
(24,9.5) using the midpoint formula
Answer:
(12, 9.5)
Step-by-step explanation:
[tex]\frac{x_{1} + x_{2} }{2} , \frac{y_{1}+y_{2} }{2} = midpoint\\x:\frac{-8+32}{2} = 12\\y: \frac{21-2}{2} = 9.5[/tex]Help me please anyone! No Links!
Answer:
141.42 or 141.4 since its rounded to the nearest tenth.
Step-by-step explanation:
Formula for this certain question is:
D = [tex]\sqrt{L^2 + W^2 + H^2}[/tex]
Plug in:
60 cm for length (L)
80 cm for depth (D)
and 100 cm for height (H)
You can also use a calculator online or a physical one.
Which best describes a triangle
Answer:
i think the answer may be acute and isosceles
Total area of two room
Help due soon (no link)
If the height of the cylinder is 3 inches, what is the volume of the cylinder
Answer:
V = 27π or approx 85 cubic inches
Step-by-step explanation:
V(cyl) = πr²h
V = π·3²·3
V = 27π