Answers
Answer:
2.37×10^-11 milliliters
Step-by-step explanation:
The exponential model for decay is ...
y = a·b^x
where 'a' is the initial value, 'b' is the decay factor, and x is the number of intervals over which the decay is taking place.
__
Here, you're given an initial value of a=500 mL.
The decay factor is 1 more than the decay rate, so is ...
b = 1 -12% = 0.88
We are asked for the remaining amount after 240 intervals (breaths), so that will be ...
y = 500·0.88^x
y = 500·0.88^240 ≈ 2.37×10^-11 . . . . milliliters
__
Additional comment
That's about 640 million molecules of air--not very much. After 400 breaths, there is about 1 molecule of the original air remaining.
Related Questions
100 POINTS What is the IQR for the data set?
{31, 76, 34, 35, 39, 49, 55}
Drag and drop the correct answer into the box.
IQR
Answers
set : {31, 76, 34, 35, 39, 49, 55}
arrange ascending to descending:
{ 31, 34, 35, 39, 49, 55, 76 }
given,
first quartile: 34third quartile: 55I.Q.R:
interquartile range : third quartile - first quartile 55 - 3421Answer:
21
Step-by-step explanation:
Place the numbers in order from smallest to largest:
31, 34, 35, 39, 49, 55, 76
The median (Q2) is the middle value = 39
Q1 is the middle value of the numbers smaller than the median = 34
Q3 is the middle value of the numbers larger than the median = 55
IQR = Q3 - Q1
= 55 - 34
= 21
Stella is creating a volcano in the shape of a cone for her science project. The height of the volcano is 12 inches and the radius of the base is 5 inches.
What is the slant height?
Answers
Answer: V≈314.16
Step-by-step explanation:
V=πr2h
3=π·52·12
3≈314.15927
Which units are most appropriate for describing the amount of water in the pool when it is full?
milliliters
cubic centimeters
quarts
millions of liters
Answers
Answer:
Cubic centimetres
Step-by-step explanation:
Milimetres will be very big numberQuarts are not applicableMillions of liters will give decimal unitsCubic centimetres is perfect
As
1cm³=1l4. The scores awarded to 25 students for an assignment were as follows:
4 7 5 9 8 6 7 7 8 5 6 9 8 5 8 7 4 7 3 6 8 9 7 6 9
What is the mode?
1. 6
2. 8
3. 7
4. 9
Answers
Answer:
7 The answer is no. 3 because it is more than the others
Find the area of the figure.
12 mm
6 mm
5 mm
CAN SOMEONE PLS HELPP
Answers
In the figure AB = AC and angle A = 48° What is the size of angle C?
Answers
Answer:
The answer is 25
Step-by-step explanation:
Which coordinates represent point E?
• (3, 7)
(4,8)
o (7,3)
(8, 4)
5
4
3
o
2
1
ws
0
1 2
3
4
5
6
7
8
9
10
1
2
3
4
5 6
Giving 100pts
Answers
Answer:
(4,8)
Step-by-step explanation:
(x,y) on the X line it is at 4 and on the Y it is on 8 so that would be (4,8)
A bag contains an unknown number of marbles. You know that P(red) = 1 and P(green) = 1. What can you conclude about how many marbles are in the bag?
Answers
The number of marbles in the bag illustrates probability
The conclusion about the number of marbles in the bag is that the bag can only contain one type of marble
The number of marbles in the bag?The probabilities are given as:
P(Red) = 1
P(Green) = 1
For a distribution, the sum of all probabilities must equal to 1.
This means that:
P(Red) + P(Green) = 1
So, we have:
1 + 1 = 1
This gives
2 = 1
The above equation is false because 2 does not equal to 1.
So, the conclusion about the number of marbles in the bag is that the bag can only contain one type of marble i.e. either red marbles are in the bag or blue marbles are in the bag
Read more about probability at:
https://brainly.com/question/251701
Why at is 4x^2 -24x+7=3
Answers
Answer:
can you clear more I don't understand
HELP!!!!!!!!!!!!!!!!!!!!!!
Answers
If a + b - 3 = 0
then, a = 3 - b.
Let’s substitute it in the second expression.
(3 - b)^3 + b^3 + 9(3 - b)(b) - 26 = 27 - 27b + 9b^2 - b^3 + b^3 + 9(3b - b^2) -26 =
= 27 - 27b + 9b^2 + 27b - 9b^2 - 26 = 1
When ranking candidates running for office, describe how it would or would not be possible for a voter to give two people the same rank.
It would be possible to give two people the same rank, as it is always possible to have a tie-breaker vote if two candidates are ranked the same by all voters.
It would be possible to give two people the same rank, as there are so many votes generated during the election that one vote giving two people the same rank would not make a difference.
It would not be possible to give two people the same rank, as ranking candidates means that one and only one candidate is given a specific rank.
It would not be possible to give two people the same rank, as the reason candidates are ranked is to make sure there are no ties.
Answers
Answer:
I believe it is Option C.
Step-by-step explanation:
There has only been one single tie since the passing of the 12th Amendment. It is a very low chance for a possible tie to take place, so they would have no reason to ensure it doesn't happen as it's already unlikely, ruling out option D. Giving two people the same rank would definitely make a difference as you are basically adding not 1, but two votes. Though it would even the count out, each person would gain 1 point, so it would make a difference. Option B is ruled out. This also potentially explains debunking A as there's no possible way to plan a tie to that extent. Again. ties happen very rarely, so it would be unlikely that voting for both candidates would impact the choice at all.
please help me classify which numbers are integers
Answers
Answer:
An integer is a WHOLE number. No fractions and no decimals. so it would be... no, yes, yes, no, yes
Step-by-step explanation:
To clarify because they try to be tricky here. 27/3 is actually equal to 9 when simplified. Same thing with 40/8... when simplified it equals 5. Both are whole numbers and therefore integers.
Answer:
-76 is an integer and 27/3 and 40/8 could also be as well
Step-by-step explanation:
27/3 is and integer because if you simplify it, it equals 9, an integer. Same for 40/8, it equals 5.
Milk is on sale for 40% off when it is normally $3.75 per gallon. How much will a gallon of milk cost?
The discounted price for milk is $____(Round to the nearest cent.)
Answers
Answer:
$2.25
Step-by-step explanation:
You have to set up a proportion to show how much the cost of milk is when discounted per gallon. 0% off, the milk would be $3.75. 40% off, the milk would be x. Now I flipped the percents because that is how much you are actually paying.
Proportion would look something like this:
3.75/100 = x/60
solve for x:
225 = 100x
x= 2.25
How do you write 950% as a fraction, mixed number, or whole number?
Answers
Step 1: Write down the percent divided by 100 like this:
950% = 950/100
Step 2: Multiply both top and bottom by 10 for every number after the decimal point:
As 950 is an integer, we don't have numbers after the decimal point. So, we just go to step 3.
Step 3: Simplify (or reduce) the above fraction by dividing both numerator and denominator by the GCD (Greatest Common Divisor) between them. In this case, GCD(950,100) = 50. So,
(950÷50)/(100÷50) = 19/2 when reduced to the simplest form.
As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 950/100 is also equal to 9 1/2 when expressed as a mixed number.
what is the mode of the data set 29,22,19,20,29,23,29,19,31
Answers
Answer:
Mean (Average): 21.44444
Median (Middle): 22
Mode (Most Common): 29
Step-by-step explanation:
which one is the missing symbol.
4/5 ? 1/2
A. >
B. <
C. =
Answers
SOLVING STEPS: rearrange from smallest to largest
The correct symbol in between numbers is,
⇒ 4/5 > 1/2
What is Inequality?A relation by which we can compare two or more mathematical expression is called an inequality.
Given that;
The numbers are,
⇒ 4/5 and 1/2
Now, We can make denominator equal as;
LCM of 5, 2 = 10
Hence, We get;
⇒ 4/5
⇒ 8/10
⇒ 1/2
⇒ 5/10
Thus, We get;
⇒ 4/5 > 1/2
Therefore, The correct symbol in between numbers is,
⇒ 4/5 > 1/2
Learn more about the inequality visit:
https://brainly.com/question/25944814
#SPJ7
Help please I’ll give you 45 points
Answers
Answer:
63 square inches
Step-by-step explanation:
You already have the polgygon divided into two rectangles, so we will use them.
The top rectangle has the dimensions of 5 and 9.
The bottom rectangle has the dimensions of 6 and 3.
To find the area of a rectangle:
area = length x width
A = lw
The area of the top rectangle:
A = 5 x 9
A = 45 square inches
The area of the bottom rectangle:
A = 6 x 3
A = 18 square inches
To find the total area, add the two areas together.
45 + 18 = 63 square inches
please help me? tysm!!!!!!!
Answers
Answer:
Round 55.99 to the nearest tenth is: 56.0
With the equation of the circle that has a center at the origin and passes through the point (1-6),
Answers
Answer:
[tex]\sf x^2+y^2=37[/tex]
Step-by-step explanation:
Equation of a circle: [tex]\sf(x-h)^2+(y-k)^2=r^2[/tex]
where (h, k) is the center and r is the radius
Given the center is at (0, 0)
[tex]\sf \implies (x-0)^2+(y-0)^2=r^2[/tex]
[tex]\sf \implies x^2+y^2=r^2[/tex]
Given the circle passes through point (1, -6):
[tex]\sf \implies (1)^2+(-6)^2=r^2[/tex]
[tex]\sf \implies r^2=37[/tex]
Therefore, the equation of the circle is:
[tex]\sf \implies x^2+y^2=37[/tex]
Equation of a circle passing through origin
x²+y²=r²So
As (1,-6) lies on circle it will satisfy
1²+(-6)²=r^21+36=r²r²=37Now
equation of the circle
x²+y²=37Hunter has a collection of 140 coins. How many coins represent 5% of his collection? Divide/scale down to solve for the missing percent.
Answers
Answer:
5% of his coins is 7
Step-by-step explanation:
140 X 0.05 = 7
A construction crew is lengthening a road that originally measured 53 miles. The crew is adding one mile to the road each day.
Answers
Answer:
Equation: 1=1
Length of the road after 16 days: 16 miles (if not adding to 53. if adding to 53, the answer is 69)
Explanation:
If they add one mile of road every day, its 1(mile) = 1(day.
Since its one mile every day, 16 days is 16 miles. Adding 53 + 16 = 69
Refer to the figure below. What are the answers for the four blanks?
Answers
Answer:
see explanation
Step-by-step explanation:
the figure is an isosceles trapezium
The legs are congruent , that is
BC = AD = 15 units
The upper base angles are congruent , so
∠ B = ∠ A = 145°
Any lower base angle is supplementary to any upper base angle, that is
∠ C + ∠ B = 180°
∠ C + 145° = 180° ( subtract 145° from both sides )
∠ C = 35°
The lower base angles are congruent , so
∠ D = ∠ C = 35°
find x for -3+x=2(x+3)
Answers
Answer:
x = -9
Step-by-step explanation:
find x for -3 + x = 2 (x+3)
-3 + x = 2 (x + 3) <== distribute
-3 + x = 2x + 6 <== subtract 1x from both sides
-x -x
-3 = x + 6 <== subtract 6 from both sides
-6 -6
-9 = x or x = -9
Hope this helps!
Given Equation :
[tex]{\longrightarrow \pmb{\sf {\qquad - \: 3+x=2(x+3)}}} \\ \\[/tex]
Solution :
[tex] \\ {\longrightarrow \pmb{\sf {\qquad - \: 3+x=2(x+3)}}} \\ \\[/tex]
Using Distributive property for the right side we get :
[tex] \\ {\longrightarrow \pmb{\sf {\qquad - \: 3+x=2x+ 6 }}} \\ \\[/tex]
Now, subtracting 2x from both sides we get :
[tex] \\ {\longrightarrow \pmb{\sf {\qquad - \: 3+x - 2x =2x - 2x + 6 }}} \\ \\[/tex]
[tex]{\longrightarrow \pmb{\sf {\qquad - \: 3- x = 6 }}} \\ \\[/tex]
Now, Adding 3 to both sides we get :
[tex] \\ {\longrightarrow \pmb{\sf {\qquad - \: 3 + 3- x = 6 + 3 }}} \\ \\[/tex]
[tex]{\longrightarrow \pmb{\sf {\qquad- \: x = 9 }}} \\ \\[/tex]
Now, Multiplying both sides by (-1) we get :
[tex] \\ {\longrightarrow \pmb{\sf {\qquad (- 1)(- x) = ( - 1)9 }}} \\ \\[/tex]
[tex]{\longrightarrow \pmb{\sf {\qquad x = - 6 }}} \\ \\[/tex]
Therefore,
The value of x is (-9) .How is the change of base formula used in solving logarithmic equations?
Answers
Answer:
See below
Step-by-step explanation:
The change of base formula for logarithms is [tex]\log_a(x)=\frac{\log_b(x)}{\log_b(a)}[/tex]. This formula allows us to rewrite a logarithmic expression so that the new expression contains a different base.
what is the surface area of the cylinder
Answers
Answer:
The formula to calculate the total surface area of a cylinder is expressed as, total surface area of cylinder = 2πr(r + h). This total surface area includes the area of the 2 bases (2πr2) and the curved surface area (2πrh). Here 'r' is the radius and 'h' is the height of the cylinder.
Step-by-step explanation:
ion even know how to do this tbh
Answers
Perimeter of square
4×side4(12)48mPerimeter of two sides of triangle:-
10+1020mPerimeter of circle excluding diameter line
πd-d(π-1)d(3.14-1)122.14(12)25.7mTotal perimeter
48+20+25.768+25.793.7mhelp me please it’s almost due at 10 am
Answers
Answer:
a no. is the answer
Step-by-step explanation:
b=a+13
or, 14 = 1+13
or, 14= 14 {True}
Answer:
b=a+13
b=1+13
b=14
again,
b=a+13
b=6+13
b=19
so the relationship between a & b is b=a+13
find the value of X to the nearest tenth
Answers
Answer:
x = 22.6 degrees
Step-by-step explanation:
The triangle is a right triangle which means that you can use trigonometry to find the values for each angle.
cos(x) = opposite / hypotenouse.
So cos(x) = 12/13.
You can then solve using a calculator and find that the angle is 22.6 degrees.
A betta fish tank is in the shape of a cube. The volume of the fish tank is 216
cubic inches. What is the edge length, in inches, of the fish tank?
6)
Type the number in the box.
inches
Answers
To find this answer, we need to understand how to get the Volume.
We get the volume by the formula: L x W x H
L = Length
W = Width
H = Height
So, we can see that there are 3 units required to know for getting the volume, if that's true, then, to do the inverse operation of finding the volume. That can be done by using thie formula:
[tex]V=a^3[/tex]
a= edge
Solving for a
a=V⅓=216⅓=6
So hence, each of the Cube shaped Fish Tank is 6in³now, let's look at how to find whether our answer is right or wrong
6x6=36
36x6=216
So hence, our answer is right!
-------------------------------------------------------------------------------------------------------"The beautiful thing about learning is that no one can take it away from you!" B.B.King
Thanks!
Mark me brainliest!
Have a GREAT AWESOME day!
~ms115~
:D
The length of a betta fish tank that has a shape of a cube and volume of 216 cubic inches is 6 inches.
Volume of a cube
A cube has all its sides equal to each other. Therefore,
volume of cube = L³
where
L = lengthTherefore,
L = >
volume = 216 cubic inches
volume of cube = L³
216 = L³
cube root both sides
∛216 = ∛L³
L = ∛216
L = 6 inches
learn more on volume here: https://brainly.com/question/10961243
CAN SOMEONE HELP ME PLEASE ASAP!?
Answers
Answer:
4:1
Step-by-step explanation:
