Answer:
3x^2 - 12x·y^2 - 9y^2·y^4
Step-by-step explanation:
Apply the distributive property of multiplication here.
x times (3x - 3y^2) is 3x^2 - 3x·y^2.
3y^2 times (3x - 3y^2) is 9x·y^2 - 9y^2·y^4.
Thus, the desired product of the given binomials is the sum of the above results:
3x^2 - 3x·y^2 - 9x·y^2 - 9y^2·y^4
which shortens to 3x^2 - 12x·y^2 - 9y^2·y^4
choose the correct snapshot graph d(x,t=0s) of this wave at t=0s.
The snapshot of the graph of the function d(x, t=0s) of the wave is illustrated below.
The term function in math referred as a relation between a set of inputs having one output each.
Here we have given that d(x,t=0s) of this wave at t=0s.
And we need to find graph of the function
While we looking into the given question we have identified that the history graph of the wave is given at distance is written as,
=> x=2m
Then the velocity of the wave is given as v= 1 m/.sec
Here we have identified the wave is traveling to the right.
Then snapshot graph shows the displacement of the wave with respect to the position at a given time whereas a history graph shows the displacement of the wave with respect to the time at a given position.
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the rescue center currently has 9 snow geese each goose gets 16 oz of seed's there is 1,656 seeds in all how many days of food until the shelter runs out
Answer:
A soultion is provided that makes assumptions about missing information.
Step-by-step explanation:
The statement ". . . each goose gets 16 oz . . ." is missing some information about a time frame. Is it 16 oz per day, week, month? The question cannot be answered without this information.
We also don't know the relationship between the number of seeds and ounces. Is 16 oz 1 seed, 10 seeds, 1000 seeds? Again, we cannot solve this without additional information.
To add some insight how to solve the problem, lets make two assumptions:
Assume 16 oz/week. We can write this as a conversion factor: (16 oz food)/(1 snow goose).
Assume 10 seeds/oz.
The Rescue Center has 1,656 seeds in total.
(1,656 seeds)
Each snow goose gets 16 oz of seeds a week. That is (16 oz)*(10 seeds/oz) = 160 seeds/week per goose.
There are 9 geese, so they consume (9 geese)*(160 seeds/week/goose) = 1440 seeds/week
There are 1,656 seeds. At 1,440 seeds/week, they will last (1,656 seeds)/(1,440 seeds/week) = 1.15 weeks.
Are all equilateral triangles congruent Yes No?
No, All equilateral triangles need not to be always congruent with one another .
Justification of answer:
The reason is that although an equilateral triangle's angles are all 60 degrees, their corresponding sides are not necessarily the same .
Properties of an equilateral triangles:1. All 3 side of an equilateral triangles have same length .
2. All 3 angles of an equilateral triangles have same measure.
3. Each angles of an equilateral triangles is 60 degree .
4. Area of equilateral triangles = [tex]\frac{\sqrt{3} }{4} * a^2[/tex]
5 . Perimeter of an equilateral triangles = 3*a
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Determine if each pair of lines is parallel, perpendicular, or neither.
Answer:
a)perpendicular
b) parallel
c) none
d) parallel
e) none
Step-by-step explanation:
In 2015, about 895. 5 million passengers traveled by plane in the united states. Which value is the best estimate of the number of passengers?.
As per the unitary method, the best estimate of the number of passengers is 9 x 10⁸
the term unitary method in math is defined as the quantity of one object when the quantity of another object and the ratio between two are given.
Here we have given that in 2015, about 895. 5 million passengers traveled by plane in the united states.
And we need to find the best estimate of the number of passengers
While we looking into the given question, we know that the about 895. 5 million passengers traveled by plane in the united states.
So, it can be written as,
=> x = 895.5 million
Here we know that 1 million = 1 x 10⁶
So, it can be rewritten as the number of passengers as,
=> x = 895.5 x 10⁶
Here we have to round off the values, then we get
=> x = 900 x 10⁶
When we further simplify this then we get
=> x = 9 x 10⁸
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i would really appreciate if u help me
solve it please
What SAT score do you need for Harvard?
How to find this probability?
To find the probability of an event, you will need to use the probability formula
which is expressed as P(Event) = Favorable Outcomes/Total Outcomes = x/n. You can calculate the probability by dividing the favorable number of outcomes by the total number of possible outcomes. The value of the probability of an event to happen can lie between 0 and 1, as the favorable number of outcomes can never cross the total number of outcomes, and the favorable number of outcomes cannot be negative.
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What is the coefficient of x² in 5x²y?
The coefficient of the variable x squared is number 5.
What are the coefficients?
The coefficients are the numbers on the left side or before each variable.
What is an algebraic expression?Is a set of numbers and letters that make up an expression that has a meaning, the letters are variables and the numbers are coefficients or independent terms, algebraic expressions can be part of an equation and model mathematical processes.
In this problem we have an expression given by:
5x²y
And we want to know what is the coefficient of x²
5 is the coefficient
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Given g(x)= -5x+1, find g(1)
a population grows exponentially with a proportionality constant of . how long will it take the population to double?
When population grows exponentially with a proportionality constant, k , this population will take 4.620 time to double.
What is Exponential Growth of a Population?If the population is growing exponentially, the rate of population change is directly proportional to its current size. So assume that the total population at some point in time t is y.
Next, write the differential equation subject to the condition that it increases in proportion to its magnitude. We can get rid of the proportional sign by introducing a constant of proportionality. We then isolate and integrate the variables of the differential equation thus formed and use the initial values to find the value of the constant of proportionality. We have , a population grows exponentially.
The proportionality constant, k = 15% = 0.15
The exponential growth function is y = y₀ eᵏᵗ
where y₀ --> initial population or at t = 0
k --> proportionality constant
t --> time
y --> is value of y at any t
let there be population y₀ at t = 0 . Then, we have to calculate how much time take the population to double.
2 yo = yo e⁰·¹⁵ᵗ
=> 2 = e⁰·¹⁵ᵗ
Introducing natural logarithms on both sides of above equation,
=> ln (2) = ln ( e⁰·¹⁵ᵗ )
=> ln (2) = 0.15t ( since ln e = 1)
=> t = ln(2)/1.5 = 4.620
Hence, required time is 4.620.
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Please help with this geometry problem and explain it step by step
Answer:
x = 26
Step-by-step explanation:
Angles ABC and CBD are supplementary, so they add up to 180.
(2x - 10) + (5x +8) = 180
7x - 2 = 180
7x = 182
x = 182/7 = 26
To find out how much raw material will be removed from a product your company manufactures, find the common denominator needed to subtract the following fractions. The common denominator is _____ five-sixths minus two-sevenths.
The common denominator needed to subtract the given fractions is 42.
Given that,
5/6 - 2/7
The denominator is the number that is placed below the horizontal line of a fraction. It is the bottom number of a fraction that shows the total number of equal parts an object is divided into.
Subtracting fractions include the subtraction of two or more fractions with the same or different denominators. Like fractions can be subtracted directly but for unlike fractions we need to make the denominators the same first and then subtract them.
Here, the LCM of denominators 6 and 7 is 42.
Now, 35/42 - 12/42
= 23/42
So, the common denominator is 42.
Hence, the common denominator needed to subtract the given fractions is 42.
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The quantity written below a fraction's horizontal line is known as the denominator. The total number of equally spaced sections into which an object is divided is indicated by the bottom number of a fraction.
When subtracting fractions, it's possible to use either the same or distinct denominators for two or more of the fractions. While unlike fractions must first have their denominators made the same before being subtracted, like fractions can be done so immediately.
The LCM of denominators 6 and 7 in this case is 42.
Now, 35/42 - 12/42
= 23/42
Therefore, 42 is the common denominator.
Consequently, 42 is the common denominator required to remove the provided fractions.
the inductor in (figure 1) is a 9.0-cm-long, 2.0-cm-diameter solenoid wrapped with 300 turns.
As per the solenoid turn the measure of the current is written as 23.45
Here we have given that the inductor in is a 9.0-cm-long, 2.0-cm-diameter solenoid wrapped with 300 turns.
And we need to find the measure of the current flow.
While we looking into the given question, here we have given that
Here the
R refers resistance of resistor = 30 Ω
V refers voltage of battery = 6.0 V
s refers length of solenoid = 9.0 cm = 0.09 m
d refers diameter of solenoid = 2.0 cm = 0.02 m
N refers number of turns of wire = 300
μ0 refers permeability of free space = 12.56 x 10⁻⁷ H/m
Then the flow of the current is calculated as,
=> [4π x 10⁻⁷ x 300 x 12.56 x 10⁻⁷] / 2 x 10⁻²
When we simplify this one then we get the result as,
=> 23.45
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What is set and number?
A group of clearly defined objects or elements make up a set. A collection of numbers is known to as an element and forms up a set.
A collection of numbers is known to as an element and forms up a set. The set of numbers can either be an endless or a limited collection. Using "{" and "}" with the elements separated by commas is one way to represent a set in roster notation; for example, the set {5,29} has the elements 5 and 29.
A group of clearly defined objects or elements make up a set. The cardinal number of a set is shown in a curly bracket next to the capital letter symbol for a set, which denotes the number of elements in a finite set.
Sets of integers are among the most frequent types of sets in mathematics. Numbers come in a wide variety of forms. We have natural numbers, whole numbers, integer numbers, rational numbers and real numbers.
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a contour map is shown for a function f on the square r = [0, 2] ⨯ [0, 2].
For a contour map as shown in the figure attached, for a function f on the square r = [0, 2] ⨯ [0, 2], estimated value of ∫∫f(x,y)dA using midpoint rule where m = n = 2 is 91 and the average value of f is 22.75.
Using the midpoint rule, the total volume
V ≈ ∑(i=1 to m) ∑(j = 1 to n) f(xij*⁻, yij*⁻)ΔA
where Δx = (b - a)/ m,
Δy = (c - d)/ n and
ΔA = ΔxΔy
Here r = [0, 2] ⨯ [0, 2] and m = n = 2
Therefore a = d = 0 and b = c = 2
Δx = (2 - 0)/ 2 = 1
Δy = (2 - 0)/ 2 = 1
ΔA = 1×1 = 1
∫∫f(x,y)dA ≈ ∑(i=1 to m) ∑(j = 1 to n) f(xij*⁻, yij*⁻)ΔA
= ΔA(f(0.5, 0.5) + f(0.5, 1.5) + f(1.5, 1.5) + f(1.5, 0.5))
= ΔA( 37 + 4 + 27 + 23)
= 1 × 91
= 91
The average value of f
f avg = 1/ A(r) × (∫∫f(x,y)dA)
f avg = 91/ (2×2)
f avg = 22.75
-- The question is incomplete, complete question is given below--
"A contour map is shown for a function f on the square r = [0, 2] ⨯ [0, 2].
a) Use the Midpoint Rule with m=n=2 to estimate the value of ∫∫f(x,y)dA.
b) Estimate the average value of f."
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NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! picture below.
Determine the domain of the following function: f(x)=x^2+3x-4/x(x^2-5)
Answer:
{x element R : x!=-sqrt(5) and x!=0 and x!=sqrt(5)}
(assuming a function from reals to reals)
So b:)
Step-by-step explanation:
Solve the word problem below. Enter your answer as a fraction in simplest
terms, using the slash (/) as the fraction bar.
If of all books at a library are nonfiction and of the nonfiction books are
4
biographies, then what fraction of the library's books are nonfiction
biographies?
Answer:
Step-by-step explanation:
Answer:
4/25
Step-by-step explanation:
There are a total of 25 books at the library, of which 4 are nonfiction biographies. Therefore, 4 out of the 25 books are nonfiction biographies, which can be expressed as the fraction 4/25.
population of ants is 10,000 at the start of April. since then, it triples each month. a. Complete the table. 2를 bits b. What do you notice about the population differences from month to month? 늘 마 number of ants months since April 0 1 2 3 4 c. If there are n ants one month, how many ants will there be a month later? #pt D. How many ants will be there in month 6?
Population of ants is 10,000 at the start of April. since then, it triples each month. Now, the calculated values become -
a) Table is complete below.
b) Notice that in every month there is an increase of 3 times population from month to month.
c) There are 8,10,000 ants in 4 months from April.
d) In the month of 6, there are 72,90,000 no. of ants.
What about population?A population is the entire set of people in a group, whether that group is a country or a collection of people who share a certain trait. A population in statistics is the group of people from which a statistical sample is taken for a research.
Month since April Number of Ants
0 10,000
1 30,000
2 90,000
3 270,000
4 810,000
Every month, the ant population triples so the multiply the previous population by 3 to find out the new population.
0 months from April = 10,000 × 1 = 10,000 ants
1 month from April = 10,000 × 3 = 30,000 ants
2 months from April = 30,000 × 3 = 90,000 ants
3 months from April = 90,000 × 3 = 2,70,000 ants
4 months from April = 270,000 × 3 = 8,10,000 ants.
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What are the zeros of FX x2 5x6?
The zeros of function f(x) = x2 - 5x + 6 are 3 and 2.
We can calculate the zeros of a polynomial using the quadratic equation.
The equation is:
x = [-b ± √(b2 - 4ac)] ÷ (2a)
In this case,
a = 1,
b = -5, and
c = 6.
Substituting these values into the equation, we get:
x = [-(-5) ± √((-5)2 - 4(1)(6))] ÷ (2(1))
Simplifying further, we get:
x = [5 ± √1] ÷ 2
Finally, we get:
x = 3 and 2
Therefore, the zeros of function f(x) = x2 - 5x + 6 are 3 and 2.
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An altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles. As a result, the altitude cuts the base into two equal segments. The length of the altitude is 13 inches, and the length of the base is 8 inches. Find the triangle’s perimeter. Round to the nearest tenth of an inch.
The perimeter of the triangle is 35.0 inches
How to calculate the perimeter of a triangle?We should know that perimeter of an object is the distance round the very object. the triangle has three sides, then the perimeter of the trianggle is the sum of the three sides.
Hence the altitude forms a right angled triangle, there are two right angled triangles.
Using the Pythagoras theorem, let the two sides of the triangle be x and y
X²=13²+4² (the altitude divided the base into 2)
x²=169+16
x²=185
Taking the square root of both sides
x=[tex]\sqrt{185}[/tex]
x=13.6 inches
For the length y
Use the same Pythagoras theorem
X²=13²+4²
x²=169+16
x²=185
x=13.6 inches
The perimeter is 8+13.6+13.6 = 35.2 inches
Therefore, the perimeter of the triangle to the nearest tenth is 35.0 inches
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A shape is equiangular with a total of 16 sides. How many degrees would just one of the interior angles have
Answer:
Step-by-step explanation:
jjj
help pls I will give you brainlist Homework #25
Why Is a Party Like Pouring Oil Into a Car? Do each exercise and find your answer at the bottom of the page. Write the letter of Ihe exercise in the box above or below the answer:
I. Find the measure of the angle that is complementary to the angle having the measure given:
20° 67° 14° 81° 45°
II. Find the measure of the angle that is supplementary to the angle having the measure given.
III. Find the angle measure that is not given.
I.
The measure of the angle that is complementary to the angle 20° is 70°, 67° is 23°, 14° is 76°, 81° is 9° and 45° is 45°.
The sum of the complementary angles is 90°
Thus,
The complement of the angle 20° is 90°-20°=70°
The complement of the angle 67° is 90°-67°=23°
The complement of the angle 14° is 90°-14°=76°
The complement of the angle 81° is 90°-81°=9°
The complement of the angle 45° is 90°-45°=45°
II.
The measure of the angle that is supplementary to the angle 120° is 60°, 56° is 124°, 29° is 151°, 162° is 18° and 83° is 97°.
The sum of the supplementary angles is 180°
Thus,
The supplement of the angle 120° is 180°-120°=60°
The supplement of the angle 56° is 180°-56°=124°
The supplement of the angle 29° is 180°-29°=151°
The supplement of the angle 162° is 180°-162°=18°
The supplement of the angle 83° is 180°-83°=97°
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A pilot was scheduled to depart at 4:00 pm, but due to air traffic, her departure has been delayed by 15 minutes. air traffic control approved a new flight plan that will allow her to arrive two times faster than she calculated in her original flight plan. let x represent the time, in minutes, of her original flight. create an equation that can be used to predict the number of minutes after 4:00 pm she will arrive at her destination.
The equation y= 2x-15 can be used to estimate how many minutes will pass after 4:00 pm until she reaches her destination.
The following equation can be used to estimate how many minutes after 4:00 p.m. the pilot will reach her destination:
y = 2x - 15
This equation represents the number of minutes after 4:00 p.m. the pilot will arrive at her destination. The variable x represents the time, in minutes, of her original flight, and y represents the number of minutes after 4:00 p.m. she will arrive at her destination. The expression "2x" represents the time the pilot will arrive at her destination if she had traveled at twice her original speed, and the "-15" represents the delay caused by air traffic.
To solve this equation, you would substitute the value of x into the equation and solve for y. For example, if the pilot's original flight time was 60 minutes, the equation would be:
y = 2(60) - 15
= 120 - 15
= 105
This means that the pilot will arrive 105 minutes after 4:00 p.m., or at 5:45 p.m.
The complete question is:-
A pilot was scheduled to depart at 4:00 pm, but due to air traffic, her departure has been delayed by 15 minutes. Air traffic control approved a new flight plan that
will allow her to arrive two times faster than she calculated in her original flight plan. Let x represent the time, in minutes, of her original flight. Create an equation
that can be used to predict the number of minutes after 4:00 pm she will arrive at her destination.
y = 2x + 15
©y=-*x+15
y = x-15
y = 2x - 15
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How hard is pure maths?
Pure maths can be quite challenging. It requires the ability to think logically and to understand complex concepts.
What is pure math?
Pure mathematics is the branch of mathematics that deals with abstract concepts, such as numbers and equations, that are not related to any physical objects or phenomena. It is the study of abstract concepts and properties, including number theory, geometry, algebra, and analysis. Pure mathematics is used in many areas of mathematics, such as applied mathematics, which is the use of mathematical techniques for solving real world problems.
It also requires knowledge of calculus, geometry and trigonometry, as well as problem-solving and analytical skills. Pure maths is often used in physics, engineering and computing, making it a valuable tool for anyone in these disciplines. However, mastering pure math takes practice and dedication, as it can be difficult.
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7.5 as improper fraction
Answer:
15/2
Step-by-step explanation: Have a nice day
Simplify:
4y (4y-4)-4(-4y+5+4y ^2)
A. -20
B. 16y^+16y-20
C. 16y^2+16y
D. 16y – 20
Answer:
D. 16y – 20
Step-by-step explanation:
Answer:
-20
Step-by-step explanation:
16y^2-16y-4(-4y+5+4y^2)
16y^2-16y+16y-20-16y^2
16y^2-20-16y^2
16y^2-16y^2-20
-20
What does mean of 100 and standard deviation of 15 mean?
IQ scores follow a normal distribution, with a mean of 100 and a standard deviation of 15. Approximately 68% of people have IQ scores in the range [85,115].
What is mean?In mathematics and statistics, the mean is the average of a set of variables. The simple arithmetic mean (add the numbers and divide the total by the number of observations), geometric mean, and harmonic mean are all ways for calculating the mean. The mean (average) of a data set is computed by adding all of the numbers in the set and dividing by the number of values in the set. When arranging data from smallest to greatest, the median is the value in the middle. The mode is the most commonly occurring number in a data set.
Here,
In this example, the population mean is 100 and the standard deviation is 15. Based on the 68-95-99.7 Rule, approximately 68% of the individuals in the population have an IQ between 85 and 115. Values in this particular interval are the most frequent.
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. About 68% of individuals have IQ scores in the interval [85,115] .
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What is AAS and SSA?
AAS stands for Angle Angle Side
SSA stands for Side Side Angle
AAS Theorem (Angle-Angle-Side Theorem) states that if two angles and the included side of one triangle are equal to two angles and the included side of another triangle, then the two triangles are congruent. This theorem is important because it allows us to determine if two triangles are congruent without having to know all three sides and all three angles.
SSA Theorem (Side-Side-Angle Theorem) states that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, then the two triangles are congruent. This theorem is important because it allows us to determine if two triangles are congruent without having to know all three sides and all three angles.
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Is 800 a passing SAT score?