Answer:
3+3+y= y+3+3
y(3*y)= (y*y)*3
3*1*y= y*3
Step-by-step explanation:
The population of a city increases by 1.1% per year. What should we multiply the
current population by to find the next year's population in one step?
CA
Answer:
Basic Relationship
We will use the equation below to derive all the other forms:
(1) log(NN0)=rt
Where:
N0 (initial population) = The population at time t = 0.
N (future population) = The population at time t.
r (rate) = The rate of population change as a function of t (a 1% increase is expressed as 0.01).
This variable is called the Malthusian Parameter.
In population studies, r is usually taken to mean births minus deaths.
t (time) = The amount of time required to produce a growth in population proportional to N/N0.
Source: Wolfram Math World: Population Growth
Derived Forms
Here are the forms of equation (1) in terms of each of its variables:
(2) N=N0e(rt) (future population)
(3) N0=Ne(−rt) (present population)
(4) t=log(NN0)r (time)
(5) r=log(NN0)t (rate)
Note that e in the above equations is the base of natural logarithms, and log(x) refers to the natural logarithm of x.
Doubling time
At the present world population growth rate of 1.1% per year (Population Growth), how long will it take to double the world's population?
The appropriate equation for this case is (4) above, with the following arguments:
t=log(NN0)r=log(21)0.011=63.243 (years)
This equation shows that it will take about 63 years to double the world's population. If this prediction is borne out, there will be 14 billion people on Earth in 2074 (based on the 2011 population of 7 billion).
Rate of Increase
How many more people join us each day?
The base equation for this case is (2) above:
N=N0e(rt)
But because we want the increase per day, we will use this form:
Nd=N0e(rt)−
A coin jar has pennies, nickels and dimes in it. There are 145 coins that are worth $3.14.
If there are 13 more nickels than dimes, how many dimes are there?
7 : 15=63:____
Find the missing term in each pair of equivalent ratios
Answer:
Step-by-step explanation:
7/15=63/x
7x/15=63
7x=15(63)
7x=945
x=135
So the missing term is 135.
Jonathan owns a food truck that sells tacos and burritos. He sells each taco for $3
and each burrito for $6.75. Jonathan must sell at least $550 worth of tacos and
burritos each day. Write an inequality that could represent the possible values for the
number of tacos sold, t, and the number of burritos sold, b, that would satisfy the
constraint.
Here ya go!! Hope this helps :D
Answer:
3t+6.75b > 550
Step-by-step explanation:
Got it right on delta math but hope this helps
What is the value of AB
Answer: -15 i think..
Step-by-step explanation:
Hey so can someone do my delta math for me
like i give u the questions and u answer yeah ok thanks
if 3/4 of the 200 seeds sprouted, how many seeds did not sprout?
Answer:
The exact answer is 16.6666666667. Rounded would be about 17.
Step-by-step explanation:
Hope i was right and this helped!
Answer:
200 seeds
Step-by-step explanation:
Hope this helps
Please help I don't understand this
A student graphed an ordered pair on a coordinate plane that was located on the y axis and was 5 units above the origin. Write the ordered pair that the student graphed with these characteristics.
assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes (based on data from an LG Smartphone survey). If 8 adult smartphone users are randomly selected, find the probability that exactly 6 of them use their smartphones in meetings or classes.
Step-by-step explanation:
Given:
p=54 %=0.54
n=8
DEFINITIONS
Definition binomial probability:
[tex]P(X=x)=\frac{n !}{x !(n-x) !} \cdot p^{x} \cdot(1-p)^{n-x}[/tex]
Complement rule:
P( not A) = 1- P(A)
[tex]Addition rule for disjoint or mutually exclusive events[/tex]
[tex]P(A \text { or } B)=P(A)+P(B)[/tex]
Evaluate the definition of binomial probability at x=6
[tex]P(X=6)=\frac{8 !}{6 !(8-6) !} \cdot 0.54^{6} \cdot(1-0.54)^{8-6}=28 \cdot 0.54^{6} \cdot 0.46^{2} \approx 0.1469[/tex]
a tshirt company charges a $30.00 design fee plus $6.00 printing fee. How much would 5 shirts cost? 15 shirts? and 18 shirts cost
Answer:
For 5 t shirts it would cost 180$
For 15 t shirts if would cost 540$
For 18 t shirts it would cost 648$
Step-by-step explanation:
you pick a card, roll a die, and find the sum. How many different sums are possible?
If we pick a card, roll a die, and find the sum , the different sums possible is 17.
What is Permutation and Combination ?A permutation is an act of arranging the objects or numbers in order.
Combinations are the way of selecting the objects or numbers from a group of objects or collection, in such a way that the order of the objects does not matter.
If we pick any card and roll a die
The sum possible is
The highest it can be would be 13(card) + 6(die) =19
the Lowest it can be would be 1(card) + 1 (die) = 2
So the different sums possible is 19-2 = 17.
To know more about Permutation and Combination
https://brainly.com/question/13387529
#SPJ2
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Marie left her briefcase at home and had to return to get it. State which point represents when she
turned back around to go home and explain how you arrived at that conclusion.
I need help plzzzzzz
Step-by-step explanation:
160%is the answer
What is the area of the following circle?
Either enter an exact answer in terms of 7 or use 3.14 for a
and enter your answer as a decimal.
T=4
units
HELP ME
Answer:
16pi or 50.24
Step-by-step explanation:
Given the equation Square root of 2x plus 1 = 3, solve for x and identify if it is an extraneous solution
a paper cone with the radius 1.5 and height 4 inches is filled with shaved ice. assuming the ice completely fills the cone and forms a hemisphere above the cone, what is the total volume of the shaved ice to the nearest hundredth of a cubic inch ?
Answer: 9.42
Step-by-step explanation:
Answer:
16.49
Step-by-step explanation:
how long will it take a seal swimming at the speed of 8 miles per hour to travel 52 miles
Answer:
6 hours and 30 minutes :)
Step-by-step explanation:
Hope this helped :D
plsss help mee xoxox
Answer:
length is 20, so width would be 16
Step-by-step explanation:
Can u please help me
I’m not good with these somebody please help me
Answer:
la c es porque 2+2 4 de nada
The scatterplot contains data points, including the
number of hours a ski lift operates (x) and the number
of people carried on it during that time (y).
The line of best fit is line v because it minimizes
the
distance from each point to the line.
HELPPOPPO
Step-by-step explanation:
what is the question? please provide a question.
Answer:
the line of best fit is line B because it minimizes the VERTICAL distance from each point to the line.
Step-by-step explanation:
edge 2021
Which expression is equivalent to the following?
21x - 15
Answer:
3(7x-5)
Step-by-step explanation:
What is the volume of this composite solid
for f(x) = 2x² + 3x-10 and g(x) = 3(x-2)
find fog (3)
Plz help me solve this ill give brainliest
Answer:
No.1- 1,134. To get this multiply the length width and height.No.2 Also multiplying the length width and height to get 2,484.No.3- L.w.h- 280No.4- 2(l.w)+2(l.h)+2(w.h)- 244No.5-same as 4- 308No.6-same as 5- 750No.7- C= pi(3.14)×d or pi(3.14)×2×r- C=75.36.Which statement is true about the factorization of 30x2 + 40xy + 51y2?
Answer:
The statement is true about the factorization of 30x2 + 40xy + 51y2? is, The polynomial can be rewritten after factoring as 10(3x2 + 4xy + 5y2). Instead, the polynomial cannot be rewritten in the form of factors, as there are no common terms.
Step-by-step explanation:
2. A countertop for a kitchen is modeled with the dimensions shown below. An
18-inch by 21-inch rectangle will be removed for the installation of the sink.
8 ft
2 ft
Sink
18 in
21 in
5 ft
2 ft
What is the area of the top of the installed countertop, to the nearest square foot?
Answer: 19
Step-by-step explanation: i got the question wrong
Could you help with some geometry questions today!
Please only answer if you know the answer and can support it by showing you work. If you have a comment or do not know the answer, tell me that in the comment section, do not answer the question. Don't take my points and I want take yours!
Anyways, please show all of you work and explain your thinking! There are 3 parts to this, please do all 3! Good luck!
Answer:
A) 29, B) 18, C) 12Step-by-step explanation:
A) r = 29
Answered here: https://brainly.com/question/22226669B) The tangents to a circle have same length:
LK = LM4x - 2 = 3x + 34x - 3x = 2 + 3x = 5LM = 3*5 + 3 = 18
C) Use the intersecting secants theorem:
PQ*PQ = SQ*RQy² = (10 + 8)*8y² = 144y = 12pls help me ahhh srry its math
Answer:
c= 180-130
=50
d= 180-(50+60)
= 180-110
=70