Answer:
a ) dAt/dt = 50,24 in/min
dh/dt = - 0,125 in/min
Step-by-step explanation:
The area of the top is At :
At = π*r²
a) Tacking derivatives with respect to time:
dAt/dt = 2* π*r * dr/dt
At t = t₁ r = 16 in and dr/dt = 0,5
Then
dAt/dt = 2*3,14*16*0,5 in/min
a ) dAt/dt = 50,24 in/min
b) The volume of the cylinder is:
Vc = π*r²*h ( where h is the heigh of the cylinder )
Tacking derivatives with respect to time
dVc/dt = 2* π*r*h*dr/dt + π*r²*dh/dt
But dVc/dt = 0 since the volume remains constant, then:
π*r²*dh/dt = - 2* π*r*h*dr/dt
r*dh/dt = - 2*h*dr/dt
dh/dt = - 2*0,5*2/16 in/min
dh/dt = - 0,125 in/min
Lee and Marisol are conducting a science experiment to identify different kinds of macromolecules in food. They prepare the following table to help them remember the chemical reactions that indicate the presence of each type of macromolecule they are studying.
Answer:
Step-by-step explanation:
Three times the number of polar bears is more than
twice the number of polar bears plus 45.
a. Write an inequality to model this situation.
b. Which of the following could possibly be the
number of polar bears?
A. 38
B. 40
C. 45
D. 48
Answer:
a. [tex]3x>2x+45[/tex] b. [tex]48[/tex]Step-by-step explanation:
For b the number of polar bears must be greater than 45 in order for there to be more on the left side.
Hope this helps! :)
Which number line shows -3, -2, 1, and 3 correctly plotted?
Answer:
i need a picture of the graphs
Step-by-step explanation:
there are 20 orange and purple pencils. the number of orange pencils is 1 less than 2 times the number of purple pencils. how many orange and purple pencils are their?
Answer:
im so srry 25 im not sure
Step-by-step explanation:
i need points :(
PLEASE HURRY FOR BRAINLIEST I BEG YOU!!
Answer:
5
Step-by-step explanation:
i did this before
can anyone help me thanks
Answer:
b
Step-by-step explanation:
dbhdkcnsbnadjfmmfejsdbfjkgkf
An estimated 3 out of every 25 men are left-handed.
What percent of men are lert-handed?
Answer:
12%
Step-by-step explanation:
3 / 25 = 0.12
Move the dot 2 places to the right to get a percentage.
Answer:
12%
Step-by-step explanation:
3/25 * x/100
25x = 300
x=12
1 point
19. Write the equation for this line in slope-intercept form. (y=mx+b)*
Answer:
y=-4x+5...
Step-by-step explanation:
y=-4x+5...
In Mona’s new video game she earns 30 points for each fish caught and 80 points for each octopus captured, but she loses 15 points every time she captures a crab. Which expression represents the total number of points Mona will earn if she catches x fish, y octopi, and z crabs?
95 (x + y minus z)
110 (x + y) minus 15 z
30 x + 80 y minus 15 z
30 + x + 80 + y minus 15 + z
Answer:
c. 30x+80y-15z.
Step-by-step explanation:
Answer:
CCCCCCCCCCCC
Step-by-step explanation:
PLZ RESPOND ASAP! 50 POINTS
classify which numbers are rational or irrational
The given numbers are:
5/4
√100
7.3
0.00247
√4/9
√2/24
0.01 with the line above the 1
Answer:
5/4 = rational √100 = rational 7.3 =rational 0.00247 = rational √4/9 = irrational √2/24 = irrational 0.01 (with the line) = irrational
Step-by-step explanation:
an irrational number is an infinitely repeating number that can not be written as a fraction, instead it must be written as a decimal. A rational number is a number that can be made by dividing two integers (an integer is a number with no fractional part).
The numbers are,
a. 5/4 = Rational
b. √100 = Rational
c. 7.3 = Rational
d. 0.00247 = Rational
e. √4/9 = Irrational
f. √2/24 = Irrational
g. 0.01 (with the line above the 1) = Irrational
What is Number system?
A system of writing to express the number is called number system.
Given that;
The numbers are,
5/4, √100 , 7.3 , 0.00247, √4/9 , √2/24 , 0.01 with the line above the 1.
Now,
Check the numbers as;
5/4 = 1.25
So, The number is a Rational number.
√100 = 10
So, The number is a Rational number.
7.3 = 7.3
So, The number is a Rational number.
0.00247 = 247/100000
So, The number is a Rational number.
√4/9 = 2/3 = 0.666.......
So, The number is a Irrational number.
√2/24
So, The number is a Irrational number.
0.01 with the line above the 1
So, The number is a Irrational number.
Thus, The numbers are,
a. 5/4 = Rational
b. √100 = Rational
c. 7.3 = Rational
d. 0.00247 = Rational
e. √4/9 = Rational
f. √2/24 = Irrational
g. 0.01 (with the line above the 1) = Irrational
Learn more about the Rational number visit:
https://brainly.com/question/22221295
#SPJ2
Enter the midpoint of the segment whose endpoints are (8, 7) and (-2, 16).
Answer:
(3, 11.5)
Step-by-step explanation:
The coordinates of midpoint are ( [tex]\frac{x_{1} +x_{2} }{2}[/tex] , [tex]\frac{y_{1} +y_{2} }{2}[/tex] )
( [tex]\frac{-2 + 8}{2}[/tex] , [tex]\frac{16+7}{2}[/tex] ) = ( 3 , 11.5 )
Answer:
(3, 11.5)
Step-by-step explanation:
midpoint=X1 + X2 , y1+y2
2 2
= 8 + (-2) , 7 + 16
2 2
= ( 6 /2 , 23/2)
= ( 3, 11.5)
Use the drop-down menus to label the points on the number line.
Answer:
Step-by-Use the drop-down menus to label the points on the number line.
Point A is at . - 1 2/4
Point B is at . - 3/4
Point C is at 3/4.
Point D is at explanation:1 3/4
The position of the points A, B, C, and D on the number line will be –3/2, –3/4, 3/4, and 7/4.
What is coordinate geometry?Coordinate geometry is the study of geometry using the points in space.
The number line is shown below.
From the figure, we can observe that there are 4 sections between each successive numbers.
The point A is at –1 2/4 that is –3/2.
The point B is at –3/4.
Then the point C is at 3/4.
And the point D is at 1 3/4 that is 7/4.
More about the coordinate geometry link is given below.
https://brainly.com/question/1601567
#SPJ2
NEED HELP PLEASE 16. A car dealer has 90 cars in the new car lot. The partially completed two-way table shown categorizes the cars by their color and whether or not they have backup
cameras. How many cars on the lot do not have backup cameras?
A. 45
B. 64
C. 53
D.8
Answer:
its 53. i just took the test
Step-by-step explanation:
License plates are made using letters followed by digits. How many plates can be made if repetition of letters and digits is allowed
How many plates can be made if repetition of leters and digits is allowed? 26*26*10*10=67,600 plates can be made.
this is what i looked up and got sry if its not
Given f(x) = X-2 and g(x)= 1/x-2 which of the following values is not in the domain of (fog)(x)?
0
1/2
2
4
Answer:
The answer is 2
Step-by-step explanation:
Edge 2021
need help with trig homework!
what is value of expression 3x7+2^3/(3+1)
Answer:
The value of the expression is 23.
Step-by-step explanation:
3x7+2^3/(3+1) <----- Here is the original problem.
3x7+2^3/4 <----- Simplify what's in the parentheses.
21+2^3/4 <----- Do your multiplication (in the front)
21+8/4 <----- Simplify the exponent. (2 x 2 x 2 = 8)
21+2 <---- Do the division.
23 <----- Here is the correct answer.
Hope this helps! :D
IF a= 6 and b= 7, then 4a(3b+5) + 2b =?
Answer:
64
Step-by-step explanation:
4a(3b+5)+2b
Substitution
4(6)[3(7)+5]+2(7)
Order of operations (PEMDAS)
4(6)[21+5]+2(7)
4(6)+26+2(7)
24+26+14
50+14
64
Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, be safe and wash your hands. Happy Holidays.
SOMEONE HELP ME THIS IS DUE TODAYYYY
If you mix the blue cheese and the cream cheese together, how many cups will there be in all? Write your answer as a reduced fraction in the form a/b. Type your answer with a space between the fraction and whole number.
_______cups?
this is the working
The answer will be one and three eighth cups
Step-by-step explanation:
hope this helps
Learning Task No. 3: Solve the following equation. Then compare
your answer by writing <, > and = in your notebook.
1.5 + 8 - 2 - 7
26 = 13 x 10 - 17
2. 22 x 3 - 42 + 20
72 - 2 + 13 - 16
3. 12 + 13 - 4 x 5
16 - 4 x 3 - 7
4. 45 - 10 x 2 + 17
16; 8 x 9-5 + 30
Answer:
(1) <
(2) <
(3) =
(4) <
Step-by-step explanation:
[tex]By \ applying \ the \ rule \ of \ BODMAS \ (i.e. \ Bracket, \ of, \ Division,\ Multiplication, \ Addition,[/tex][tex]\ and \ Subtraction).[/tex]
(1)
5 + 8 - 2 -7 = 13 × 10 - 17
13 - 9 = 130 - 17
4 < 113
(2)
22 × 3 - 42 + 20 = 72 -2 + 13 - 16
66 - 22 = 72 + 11 - 16
44 < 67
(3)
12 + 13 - 4 × 5 = 4 × 3 - 7
12 + 13 - 20 = 12 - 7
5 = 5
(4)
45 - 10 × 2 + 17 = 8 ×9 - 5 + 30
45 - 20 + 17 = 72 + 25
42 < 97
HELP ASAP also the I couldn't fkfit the whole thing so that other part of the triangle is a O
Answer:
6/3 or 2?
Step-by-step explanation:
i am not completely sure though. I went purely based off of MN/RS, which gave me the ratio 6/3. That also equals 2.
3) The mean of a set of data is 4.68 and its standard deviation is 2.83. Find the z score for a value of 9.38.
Answer:
1.66
Step-by-step explanation:
The mean of a set of data is 4.68 and its standard deviation is 2.83. Find the z score for a value of 9.38
Given that :
Mean (m) = 4.68
Standard deviation (s) = 2.83
Value of x = 9.38
Zscore = (x - mean) / standard deviation
Zscore = (9.38 - 4.68) / 2.83
Zscore = 4.7 / 2.83
Zscore = 1.6607773
Hence, Zscore for a value of 9.38 is 1.66
What is grater -1.5 or -3/2
Answer:
the first on is greater
Step-by-step explanation:
please trust me
(2x-40)° = (x+10)° solve for x
Answer:
X = 50
Step-by-step explanation:
2x-x = 40 + 10
X =50
Take the x to be on the same sides and the normal numbers in the other side. Then work them out.
I need help, also give explantion please
Answer:
[tex] \huge \: 8 {x}^{3} \times 3 {x}^{9} = 24 {x}^{12} [/tex]
Arectangle on a coordinate plane is translated 5 units up and 3 units to the left. Which rule describes the translation?
x. y) x+5, y-3)
Oxy)- + 5.y + 3)
(K.)- K-3.y + 5)
(.)-(3.y+ 5)
Answer:
The first one x=5, y-3
Step-by-step explanation:
The dispersion among sample means is less than the dispersion among the sampled items themselves becausea:______
a. Each sample is smaller than population
b. Very large value are averaged down
c. Sampled items are all drawn from the same population
d. None of thesee.
e. b and c
Answer:
The dispersion among sample means is less than the dispersion among the sampled items themselves because:______
b. Very large values are averaged down
Step-by-step explanation:
The sample means represent average values obtained from both large and moderate values. Through the process of averaging, the data values obtained as the sample means are much closer to the true values. This is why the dispersions among the sampled items will be larger than the dispersions among the sample means. Sample dispersions describe how spread out the data values are on the number line.
= 3x + 4, what is y when x is 1, 2, and 3
Answer:
when x is 1 y is 7
when x is 2 y is 10
when x is 3 y is 13
Step-by-step explanation:
please help i have 1 hour to complete this
Answer:
for the first one its C,D and E
but for the second one i dont
know so sorry
Step-by-step explanation: