How much of the total population of the earth does 16 people make up?
So currently there are roughly 7.9 Billion people on the earth. What percentage of that does 16 people make up?
Answer:
Australia/New Zealand (56%), Northern Africa and Western Asia (46%), Australia/New Zealand (28%), Central and Southern Asia (25%), Latin America and the Caribbean (18%), Eastern and Southeastern Asia (3%), and Europe and Northern America (2%).
Step-by-step explanation:
PLEASE HELP ASAP!!! PLEASE ALSO GIVE EXPLANATION WITH EQUATION AND WORDS!!
Using proportions, it is found that the two cities are 27.5 miles apart.
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
From the given scale, we have that each inch of distance represents 10 miles. Hence the distance in miles for a distance of 2 and 3/4 miles = 2.75 miles is given by:
D = 10 x 2.75 = 27.5 miles.
Hence, the two cities are 27.5 miles apart.
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The total number of atoms represented by Cd(CH₂CICO₂)2 is:
O a) 13
Ob) 16
O c) 17
Od) 15
Oe) 14
The total number of atoms represented by Cd(CH₂CICO₂)₂ is 15.
What is addition?In addition, items are combined and counted as a single large group. The process of adding two or more numbers together is known as addition in mathematics. The terms "addends" and "sum" refer to the numbers that are added and the result of the operation, respectively.
To find the total number of atoms represented by Cd(CH₂CICO₂)₂, we need to count the number of atoms of each element in the molecule and add them up.
Cd(CH₂CICO₂)₂ contains:
1 cadmium (Cd) atom
2 carbon (C) atoms
6 hydrogen (H) atoms
4 oxygen (O) atoms
2 chlorine (Cl) atoms
Adding these up, we get:
1 + 2 + 6 + 4 + 2 = 15
Therefore, the total number of atoms represented by Cd(CH₂CICO₂)₂ is 15.
The answer is (D) 15.
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What is the equation of the line in slope intercept form?
Answer:
y = x + 60
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
calculate m using the slope formula
m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)
with (x₁, y₁ ) = (20, 80) and (x₂, y₂ ) = (40, 100) ← 2 points on the line
m = \(\frac{100-80}{40-20}\) = \(\frac{20}{20}\) = 1
the line crosses the y- axis at (0, 60 ) ⇒ c = 60
y = x + 60 ← equation of line
Find the ratio a:b, if it is given that ...
7a=3b
Answer:
a:b
3:7
Step-by-step explanation:
a:b also means a/b
Taking the equation
7a = 3b
Dividing each side by b
7a/b = 3b/b
7 a/b = 3
Divide each side by 7
a/b = 3/7
The ratio is 3/7
a:b
3:7
Answer:
a:b = 3/7
Step-by-step explanation:
we need to find the ratio a:b which is the same as a/b.
7a=3b
Devide left and right of the = sign by b gives
7a/b = 3 * b/b
7a/b = 3 * 1
7a/b = 3
Multiply left and right of the = sign by 1/7 gives
1/7 * 7a/b = 1/7 * 3
7/7 * a/b = 3/7
1 * a/b = 3/7
a/b = 3/7
Since a/b is the same as a:b, we now have the answer.
a:b = 3/7
Walter works for SCI Energy. His retirement plan contributions are $4,200 at the beginningof each 6-month period.Assume that the account grows at 5% semiannually for 15 years. Find the interestearned.
Given:
Principal = P = $4,200
Time = t = 15 years
Rate = r = 5% = 0.05
semiannually , n = 2
So, the total amount = A
\(\begin{gathered} A=P\cdot(1+\frac{r}{n})^{nt}=4200\cdot(1+\frac{0.05}{2})^{2\cdot15} \\ \\ A=4200\cdot1.025^{30}=8809.78 \end{gathered}\)The interest earned = A - P = 8809.78 - 4200 = 4609.78
so, the answer will be The interest earned = $4,609.78
Question
If the number 629000 is written in scientific notation, it will be in the form 6.29 x 10”.
Answer:
6.29 x 10^5
Step-by-step explanation:
You move 5 decimal points behind the 0s, hence it's powered by 5.
Answer:
6.29 x 10^5.
Step-by-step explanation:
629000.
Counting the number of digits after the first digit (6), we get n = 5.
Mofor has homework assignments in five subjects. He only has time to do two of
them.
The decision of which two homework assignments to complete depends on Mofor's individual circumstances and priorities.
If Mofor only has time to do two homework assignments out of the five subjects, he will need to choose which subjects to prioritize. The specific subjects he chooses to work on will depend on various factors such as his strengths, weaknesses, upcoming deadlines, and personal preferences. Here are a few strategies he could consider:
1. Prioritize based on importance: Mofor can prioritize the homework assignments that carry more weight in terms of grades or have upcoming deadlines. This way, he ensures that he completes the assignments that have a higher impact on his overall academic performance.
2. Focus on challenging subjects: If Mofor finds certain subjects more difficult or time-consuming, he can prioritize those assignments to allocate more time and effort to them. This approach allows him to concentrate on improving his understanding and performance in subjects that require extra attention.
3. Balance workload: Mofor can choose to distribute his efforts evenly across subjects, selecting two assignments from different subjects. This strategy ensures that he maintains a balanced workload and avoids neglecting any particular subject.
The decision of which two homework assignments to complete depends on Mofor's individual circumstances and priorities. It is essential for him to consider his academic goals, time constraints, and personal strengths to make an informed decision.
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7.
If one United States dollar is worth $6.46 in yen (Chinese currency) in Euro money,
how much is $100 in Yen worth in United States money, to the nearest cent?
Answer:
$15.48
Explanation:
100 ÷ 6.46 = 15.479876
Help please
Sarah's rectangular dining table has a area of 9000 sq ft and the length is 20 in less then four time the width find the length and width
Given that,
The area of a rectangular dining table = 9000 sq ft
Solution,
Let the width is b ft. Length is 20 less then four time the width.
Length = (4b-20) ft
The formula for the area of a rectangle is given by :
A = lb
Substitute all the values,
\(9000=b(4b-20)\\\\4b^2-20b-9000=0\\\\\text{It is a quadratic equation, when we solve it we get :}\\\\b=50,-45\ feet\)
Neglecting negative value, b = 50 ft
Length, l = (4(50)-20)
l = 180 ft
So, the length is 180 ft and width is 50 ft.
Solve for θ if−10sinθ−8=5√3−8 and 0≤θ<2π.
The solutions are θ = 5π/3 and θ = 4π/3 for equation -10sinθ - 8 = 5√3 - 8, option D is correct.
The given equation is -10sinθ - 8 = 5√3 - 8
Adding 8 to both sides, we get:
-10sinθ = 5√3 - 8 + 8
Simplifying, we get:
-10sinθ = 5√3
Dividing both sides by -10, we get:
sinθ = -5√3/10
Simplifying the fraction, we get:
sinθ = -√3/2
We know that sinθ = -√3/2 when θ = 4π/3 and θ = 5π/3 (among other angles).
However, since 0 ≤ θ < 2π, only the angles in the second and third quadrants are valid solutions for sinθ = -√3/2.
Therefore, the solutions are θ = 5π/3 and θ = 4π/3, option D is correct.
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i need help! please, this is confusing
The cost of the 28 inches and 36 inches diagonal Smart TVs, based on the quadratic cost function are;
28 - inch diagonal; $134
36 - inch diagonal; $165
What is a quadratic function?A quadratic function is a function of the form f(x) = a·x² + b·x + c, where a ≠ 0, and a, b, and c are numbers.
The cost of the Smart TV as a function of the diagonal length is C(d) = 0.322·d² - 16.776·d + 351.444
The above function indicates that the cost of a Smart TV that is 28 inches long is; C(28) = 0.322 × 28² - 16.776 × 28 + 351.444 ≈ 134
A Smart TV with a diagonal of 28 inches costa about $134The cost of a Smart TV with a diagonal of 36 inches is therefore;
C(36) = 0.322 × 36² - 16.776 × 36 + 351.444 ≈ 165
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A line has 2/3 and y intercept -2 which answer is the equation of the line
Answer:
A line has a slope of 2/3 and y–intercept -2. The equation of the line is y = (2/3)x - 2.
Step-by-step explanation:
Hope this helps
Answer:
y = (2/3)x - 2
Step by step explanation:
The slope of a line is nothing but the change in y coordinate with respect to the change in x coordinate of that line.
Given, slope of the line is 2/3
y-intercept is -2.
The equation of the line in slope-intercept form is given by
y = mx + c
Where, m is the slope
c is the y-intercept.
y = (2/3)x - 2
1. Which one of the following is NOT true about polynomial functions f(x) and g(x) if deg (f) = man * d deg * (g) =n?
A. deg (f + g) = max(m, n)
B. deg (f_{g}) <= m + n
C. If g is a factor of f then deg( f )<= m
D. The deg (f ^ 3) = 3m
The option that is not true about polynomial functions is:
Option D. The deg (f ^ 3) = 3m
How to Interpret the degree of Polynomial functions?For polynomial functions f(x) and g(x), if deg(f) = m * deg(g) = n, then we have the following:
Option A: deg(f + g) = max(m, n)
This is true because we know that the degree of the sum of two polynomials is the maximum of their individual degrees.
Option B: deg(f * g) <= m + n
This is true because we know that the degree of the product of two polynomials is at most the sum of their individual degrees.
Option C: If g is a factor of f, then deg(f) <= m
This is true because If g is a factor of f, it means that f can be divided by g without leaving a remainder. In this case, the degree of f is less than or equal to the degree of g.
D. The deg(f ^ 3) = 3m
This is not true because the degree of the polynomial f raised to the power of 3 is not necessarily equal to 3 times the degree of f. The degree of f^3 will depend on the individual terms and their exponents.
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Bruce needs to practice the piano for 1 2/3 hours. He has been practicing for ¾ of an hour. How much longer must he practice?(first person gets brain plz help i need it for test its a alot of my grade
Answer:
55 minutes.
Step-by-step explanation:
1 2/3 - 3/4 = 11/12 hours
11/12 hours = 55 minutes.
Please give the right answer
Answer:
Just do 180-48!!
The answer is 132 degrees
Step-by-step explanation:
solve for x. 8×-3=5(2×+1)
Answer:
x = -4
Step-by-step explanation:
8x - 3 = 5(2x + 1)
8x - 3 = 10x + 5
8x - 10x = 5 + 3
-2x = 8
x = 8/-2
x = -4
Select the correct answer from each drop-down menu.
The graph represents the complex numbers z₁ and z2. What are their conjugates?
The conjugates of z1 and z2 are given below:
• z1* = 7-2i• z2* = -3+iWhat is a Conjugate?In mathematics, a pair of binomials with identical phrases that part opposite arithmetic operators in the midst of these similar terms are referred to as conjugates.
For instance, the conjugate of p + q is p - q.
'
With this in mind, the conjugate which is the same number with the imaginary part negated is given as:
The conjugate of 7+2i is 7-2i;
the conjugate of -3-i is -3+i.
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find the distance between the following pairs of points (-1,5)and(-7,-3)
The distance between the points (-1, 5) and (-7, -3) is 10 units.
What is the distance between the given points?The distance formula used in finding the distance between two points is expressed as;
D = √( ( x₂ - x₁ )² + ( y₂ - y₁ )² )
Point 1 (-1,5)
x₁ = -1y₁ = 5Point 2 (-7,-3)
x₂ = -7y₂ = -3Plug the given values into the distance formula and simplify.
D = √( ( x₂ - x₁ )² + ( y₂ - y₁ )² )
D = √[(-7 - (-1))² + (-3 - 5)²]
D = √[(-7 + 1)² + (-3 - 5)²]
D = √[-6² + (-8)²]
D = √[36 + 64]
D = √100
D = 10
Therefore, the distance is 10 units.
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The function h(T)= 200- 16t represents the height of a ball dropped from 200 feet.
How far had the ball traveled after falling for 7 seconds?
Answer: 112 feet
Step-by-step explanation:
i need help please it's due today
Step-by-step explanation:
work is on the paper for you, somthing that might help you with your future with math is PEMDAS always do exponents first when it's an equation like your first, second, and third question. I hope this helped.
Use the limit definition to find the equation for the slope of any tangent line, the slope of the tangent line at the given value, and the equation of the tangent line at the given value of x.
Answer:
Given function is:
\(f(x)=\frac{3}{x}\text{ at x=3}\)To find the slope of any tanget line using limit definition.
we get,
Slope m is
\(m=\lim _{h\to0}\frac{f(3+h)-f(3)}{h}\)\(=\lim _{h\to0}\frac{\frac{3}{3+h}-1}{h}\)\(=\lim _{h\to0}\frac{3-3-h}{h(3+h)}\)\(=\lim _{h\to0}\frac{-h}{h(3+h)}\)\(=\lim _{h\to0}\frac{-1}{3+h}\)\(=-\frac{1}{3}\)Slope is -1/3
f(x) at x=3 is,
Put x=3 in f(x), we get
\(\begin{gathered} f(3)=\frac{3}{3}=1 \\ f(3)=1 \end{gathered}\)we know that, the equation of line with slope m and point (x1,y1) is given is
\(y-y1=m(x-x1)\)Here m=-1/3 and (x1,y1)=(3,1)
Substitute we get,
\(y-1=-\frac{1}{3}(x-3)\)\(y-1=-\frac{1}{3}x+1\)\(y=-\frac{1}{3}x+2\)The required equation of a tangent line at x=3 is y=-1/3 x+2.
Represent "sum of a number and five" algebraically? (Use n to represent "a number")
The algebraic representation of "sum of a number and five" can be written as
n + 5
Where n represents the "number".
In mathematics, an algebraic representation is a way of expressing a mathematical relationship or equation using symbols, letters, and mathematical operations. It is a symbolic representation of a mathematical expression or equation that allows us to work with abstract concepts and manipulate them according to certain rules.
For example, the equation y = 2x + 1 is an algebraic representation of a linear function, where y and x represent variables and 2x + 1 is an expression that relates them. Algebraic representations are often used in algebra, calculus, and other areas of mathematics to describe relationships between quantities, solve equations, and make predictions based on mathematical models.
Hence, the algebraic representation of "sum of a number and five" can be written as
n + 5
Where n represents the "number".
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What is the 5th term of the geometric sequence
9. 27. 81.243, ...?
Answer:
729
Step-by-step explanation:
You are multiplying 3 each time. The first 4 terms are given to you:
Term 1: 9
Term 2: 9 x 3 = 27
Term 3: 27 x 3 = 81
Term 4: 81 x 3 = 243
Term 5: 243 x 3 = 729
729 is the 5th term of the geometric sequence.
Answer:
729
Step-by-step explanation:
Each terms are multiplied by 3.
So the 5th term is 243*3 = 729.
What is the equation for the following table?* The total cost, y, for a taxi ride depends on the number of miles traveled, x. Distance (mi), x 1 5 10 Total Cost ($), y 2.50 5.00 15.00 27.50
Step-by-step explanation:
The slope is $2.50. The intercept is also $2.50 since (0, $2.50) is on the line.
The linear function is then y = $2.50 x + 2.50
Exercise 2.4.4: Showing a statement is true or false by direct proof or counterexample. About Determine whether the statement is true or false. If the statement is true, give a proof. If the statement is false, give a counterexample. (a) If and are even integers, then is an even integer. Solution (b) If is an even integer, then and are both even integers. (c) If , then . Solution (d) If x and y are real numbers and , then . Solution (e) If and are positive real numbers and , then . (f) The average of two odd numbers is an odd integer. (g) The average of two even numbers is even. (h) The average of two odd numbers is an integer. Solution
Answer:
Step-by-step explanation:
and ok thats the deal
Which expression has a value of 7/12
Answer:
there isn't any choices but 6/12+1/12=7/12
or 4/12+3/12=7/12
hope this helps
have a good day :)
Step-by-step explanation:
The equation y = 15x represents the total number of pages read in x days.
Use the equation to complete the table.
a =
b =
c =
d =
Answer:A= 75
B-150
C-225
D-300
Step-by-step explanation:. Y=15x, so you would take the x axis numbers and times it by 15, and then your answer will be there.
Answer:
order from top to bottom 75 150 225 300
Step-by-step explanation:
Picture a rectangular prism with a volume of 150 cubic units. What is the number of unit cubes that would fill the volume of this prism if they were packed without any gaps or overlaps?
Answer:
150 units woild fill the volume of the prism.
A wire is 71cm long . you wish to cut it into two pieces. One piece is bent into shape of triangle with legs of equal length .The piece is to be bent into shape of circle .
To solve this problem, we need to find the lengths of the two pieces when the wire is cut into two parts. Let's denote the length of each leg of the triangle as\(\(x\).\)
The perimeter of the triangle is the sum of the lengths of its three sides. Since the two legs are equal in length, the perimeter can be expressed as \(\(2x + x = 3x\).\)
The length of the wire is given as 71 cm, so we have the equation \(\(3x = 71\).\)
Solving for\(\(x\),\) we divide both sides of the equation by 3:
\(\(x = \frac{71}{3}\).\)
Now that we know the length of each leg of the triangle, we can proceed to the next part of the problem.
The circumference of a circle is given by the formula \(\(C = 2\pi r\)\), where\(\(C\)\)is the circumference and r is the radius. In this case, the wire of length xis bent into the shape of a circle, so we can set the circumference equal to x and solve for the radius r:
\(\(x = 2\pi r\).\)
Substituting the value of x we found earlier, we have:
\(\(\frac{71}{3} = 2\pi r\).\)
Solving for r, we divide both sides of the equation by \(\(2\pi\):\)
\(\(r = \frac{71}{6\pi}\).\)
Therefore, the two pieces of wire will have lengths\(\(\frac{71}{3}\)\)cm and the radius of the circle will be\(\(\frac{71}{6\pi}\)\) cm.
In summary, when the 71 cm wire is cut into two pieces, one piece will have a length o\(\(\frac{71}{3}\)\)cm, which can be bent into the shape of an equilateral triangle with legs of equal length, and the other piece can be bent into the shape of a circle with a radius of \(\(\frac{71}{6\pi}\)\) cm.
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