Answer:We use the formula for exponential growth:P = Po exp(kt)Using the population data from 1993 to 1996, we can solve for the growth rate k76 = 72 exp(k(3))76/72 = exp(3k)ln (76/72) = 3kk = ln(76/72) / 3 = 0.0180In 10 years (2003), the population will be:P = Po exp(0.0180t)P = 72 exp(0.0180(10))P = 86.22 million
Step-by-step explanation:
adding and subtracting rational expressions. Complete the following steps to find the LCD and write the sum of the numerators for the given problem:1. x^2-3x-4 =2. x^2-6x+8 =The least common denominator is:(x-4)(x+___(3)____)(x-___(4)_____)
The least common denominator is [tex](x^2-3x-4)/(x-4)(x+1) + (x^2-6x+8)/(x-4)(x-2) = 2/(x-4)(x+1)(x-2)[/tex]
Simply put, a rational expression is the product of two polynomials. Or to put it another way, it is a fraction using polynomials as the numerator and denominator.
Reasonable expressions resemble fractions with variable denominators (and often numerators too).
For rational expressions, any value can be entered with the exception of those that set the denominator to 0 (because division by 0 is an undefinable operation).
In other words, all real numbers other than those that make a rational expression's denominator zero are included in the domain of a rational expression.
[tex]x^2-3x-4 = (x-4)(x+1)\\x^2-6x+8 = (x-4)(x-2)[/tex]
The least common denominator is: [tex](x-4)(x+1)(x-2)[/tex]
To add these two rational expressions, we need to rewrite each of them with the LCD as the denominator:
[tex](x^2-3x-4)/(x-4)(x+1) = [(x-4)(x+1)]/(x-4)(x+1)(x-2) = 1/(x-2)\\(x^2-6x+8)/(x-4)(x-2) = [(x-4)(x-2)]/(x-4)(x+1)(x-2) = 1/(x+1)[/tex]
So the sum of the numerators is 1 + 1 = 2.
Therefore,[tex](x^2-3x-4)/(x-4)(x+1) + (x^2-6x+8)/(x-4)(x-2) = 2/(x-4)(x+1)(x-2)[/tex]
for such more question on rational expressions
https://brainly.com/question/25292194
#SPJ4
Determine whether if it is possible to form a triangle with the given side lenghts. AB = 2cm, BC = 8cm, AC = 5cm
Answer:
no because if one of the side is 2, if we calculate semi perimeter it will be 7.5 which is greater
In the figure below, DG is parallel to EF and ZFDG =
D
OD. 75°
G
Note: picture not drawn to scale
If m/FDG = 66° and m/EDG = 100°, what is m/FED?
OA. 100°
OB. 90°
OC. 80°
Answer:
m∠FED = 80°
Step-by-step explanation:
We have m∠FDG = m∠DFE = 66°m∠EDG = 100°Since ∠EDG is formed from the two angles ∠FDG and ∠FDEWhat is this in standard form?
Answer: y = 0.1x^2 - 0.8x + 1.2
hope this helped
x -3y =12 in slope-intercept form
Answer:
y = (1/3)x - 4
Step-by-step explanation:
put y on one side
x -3y =12
y =12-x/-3
y=12/-3 -x/-3
y=-4 + 1/3x
chatgpt
how much is 1000 mcg to mg
To convert mcg to mg, divide the mcg value by 1000. Therefore:
1000 mcg = 1000/1000 mg = 1 mg
So, 1000 mcg is equal to 1 mg.
The Boeing 747-8 Intercontinental Jet can carry approximately 63,500 gallons of jet fuel, making it possible for the jet to travel 14,430 kilometers before needing to refuel.
help me...
Use a linear model to predict the amount of jet fuel that is present on the Jet after it has been in flight for 18 hours without stopping to refuel. In two or more complete sentences, explain your answer.
The maximum distance as function of the quantity of gallons of gasoline the required expression is: x = 0.2272 . n
What is distance?Distances between two things or places can sometimes be measured qualitatively and sometimes quantitatively. A physical length or an estimate based on other criteria might be referred to as distance in physics or everyday language. The entire movement of an item, independent of direction, is called distance. No matter where an item starts or ends, distance may be described as the amount of ground it has covered.
The maximum distance as function of the quantity of gallons of gasoline is estimated by the following linear model:
x = (14,430 km / 63500 gallons) . n
Finally, the required expression is:
x = 0.2272 . n
To know more about expression refer to:
https://brainly.com/question/1859113
#SPJ1
what is 25 as a decimal?
The number 25 can be represented as a decimal by simply writing it as 25.0 or 25.00
The number 25 can be represented as a decimal by simply writing it as 25.0 or 25.00. This is because decimal notation is a way of writing numbers that uses a decimal point to separate the whole number part from the fractional part.
In this case, since 25 is a whole number and has no fractional part, we can represent it in decimal form by adding a decimal point and a zero or two zeros after it to indicate that there are no decimal places.
Alternatively, we can also represent 25 as a decimal by dividing it by 1, which does not change its value, and then expressing the quotient as a decimal. Since 25 divided by 1 equals 25, we can write 25 as a decimal by dividing 25 by 1 and writing the quotient as follows:
25 ÷ 1 = 25.000000... (with the decimal places repeating indefinitely)
However, in most cases, it is sufficient to represent 25 as 25.0 or 25.00, since these notations convey that the number has no fractional part.
Learn more about decimal number here
brainly.com/question/4708407
#SPJ4
The point of intersection of two sides of a polygon is called a
A. diagonal
B. vertex
C. altitude
Answer:
Step-by-step explanation:
B vertex
5x(12+7) using distributive property
Answer:
To simplify 5x(12+7) using distributive property, we can distribute the 5x to each term inside the parentheses, which means multiplying 5x by 12 and by 7, and then adding the two resulting products. This is because the distributive property states that:
a(b + c) = ab + acIn this case, a is 5x, b is 12, and c is 7. Therefore, we can apply the distributive property as follows:5x(12+7) = 5x(12) + 5x(7)= 60x + 35x= 95xTherefore, 5x(12+7) simplifies to 95x using distributive property.Step-by-step explanation:
= 95
The distributive property states that for any real numbers a, b, and c,
a × (b + c) = a × b + a × c.
5x(12+7) using distributive property
5x(12) + 5x(7)
60 + 35
95
To know more about the distributive property visit:
brainly.com/question/30804302
brainly.com/question/29667212
I need help with all 3 of them please and thank you... I have to get it done right now
A scatter plot of the data is shown below.
The best-fitting line for the data is y = -10t + 165.8.
The predicted number of adult softball teams in 2010 is 56 thousands adult softball teams.
How to find an equation of the line of best fit for the data?In order to determine a linear equation for the line of best fit (trend line) that models the data points contained in the table, we would have to use a graphing calculator (scatter plot).
In this scenario, the number of years would be plotted on the x-axis of the scatter plot while the number of teams (thousands) would be plotted on the y-axis of the scatter plot.
On the Excel worksheet, you should right click on any data point on the scatter plot, select format trend line, and then tick the box to display an equation for the line of best fit (trend line) on the scatter plot.
From the scatter plot (see attachment) which models the relationship between the number of years and teams (thousands), a linear equation for the line of best fit is given by:
y = -10t + 165.8
Next, we would determine the predicted number of adult softball teams in 2010:
Years, t = 2010 - 1999 = 11 years.
y = -10(11) + 165.8
y = -110 + 165.8
y = 55.8 ≈ 56 thousands adult softball teams.
Read more on scatter plot here: brainly.com/question/28605735
#SPJ1
how to convert 50cm to in
50cm is equal to 19.685 inches.
Measurement is a crucial aspect of our lives, and it helps us to determine the quantity, size, or amount of things. Different units of measurement are used to measure various objects, and it is essential to know how to convert from one unit to another. In this article, we will discuss how to convert 50cm to inches, which are both commonly used measurements.
To convert 50cm to inches, we need to know the conversion factor between centimeters and inches. One inch is equal to 2.54 centimeters, which means that we can convert centimeters to inches by dividing the measurement by 2.54.
So, to convert 50cm to inches, we need to divide 50 by 2.54. We can do this using a calculator or by long division.
50 / 2.54 = 19.685 inches
In this case, we have learned how to convert 50cm to inches, which involves dividing the measurement by 2.54.
To know more about measurement here.
https://brainly.com/question/4725561
#SPJ4
You are painting a room that is 18 ft long, 14 ft wide and 8 ft high. Find the area of the four walls that you are going to paint. Explain
Answer: 2016
Step-by-step explanation: Since you need to find the area of everything u need to multiply it all h*ft*w (height*width*wide) so 18*14*8=2016
what is rational number definition?
A rational number is a number that can be expressed as the ratio of two integers, where the denominator is not zero.
A normal number is a number that can be communicated as the proportion of two whole numbers, where the denominator isn't equivalent to nothing. This implies that a normal number can be written in the structure p/q, where p and q are numbers and q isn't equivalent to nothing.
For instance, 3/4, 7/2, and - 5/6 are instances of normal numbers. Be that as it may, numbers like pi (π) and the square foundation of 2 (√2) are not objective, since they can't be communicated as a proportion of two numbers.
Normal numbers are significant in math, as they structure a subset of the genuine numbers and can be utilized to address amounts in a wide range of settings, like portions, proportions, and probabilities. They are additionally utilized broadly in polynomial math, where they structure the reason for tackling conditions and controlling articulations.
To learn more about rational number, refer:
https://brainly.com/question/4617697
#SPJ4
Wich number is greater and by how much
600 or 600 decreased by 20% then increased by 20% of the result.
PLS HELP LOL
To calculate the value of "600 decreased by 20%", we can multiply 600 by 0.8:
600 × 0.8 = 480
To calculate "600 decreased by 20% and then increased by 20% of the result", we need to multiply 480 by 1.2:
480 × 1.2 = 576
Therefore, 600 decreased by 20% and then increased by 20% of the result is 576.
To find out which number is greater and by how much, we can subtract 576 from 600:
600 - 576 = 24
So, 600 is greater than 600 decreased by 20% and then increased by 20% of the result, by 24.
It is estimated that, during the past year, 27% of all adults visited a therapist and 43% of all adults used antidepressants. It is also estimated that 20% of all adults both visited a therapist and used a antidepressant during the past year.
(a)What is the probability that a randomly selected adult who visited a therapist during the past year also used antidepressants? Round your answer to the nearest hundredth.
(b)What is the probability that an adult visited a therapist during the past year, given that he or she used antidepressants? Round your answer to the nearest hundredth.
(a) To find the probability that a randomly selected adult who visited a therapist during the past year also used antidepressants, we use the formula:
P(A|B) = P(A and B) / P(B)
where A is the event that an adult used antidepressants, and B is the event that an adult visited a therapist. We are given:
P(A) = 0.43
P(B) = 0.27
P(A and B) = 0.20
Plugging these values into the formula, we get:
P(A|B) = 0.20 / 0.27 ≈ 0.74
Therefore, the probability that a randomly selected adult who visited a therapist during the past year also used antidepressants is approximately 0.74.
(b) To find the probability that an adult visited a therapist during the past year, given that he or she used antidepressants, we use Bayes' theorem:
P(B|A) = P(A|B) * P(B) / P(A)
where A and B are defined as before. We have already calculated P(A|B) and P(B), and we know:
P(A) = 0.43
Plugging these values into Bayes' theorem, we get:
P(B|A) = (0.74 * 0.27) / 0.43 ≈ 0.47
Therefore, the probability that an adult visited a therapist during the past year, given that he or she used antidepressants, is approximately 0.47.
18) The area of rectangle BCDE is 70 square inches. If the length of AE is four inches and the length of ED is 14
inches, what is the area of trapezoid ABCD in square inches?
C
a.) 75
b.) 80
OC.) 85
d.) 90
The area of the trapezoid ABCD in square inches would be = 80in² . That is option B.
How to calculate the area of the given trapezium?The formula that can be used to calculate the area of the trapezium = ½ (a+b) ×h
Where a = line ED = 14
b = line AD = 14+4 = 18
height = area of rectangle / width
= 70/14 = 5in
Therefore the area of trapezium ;
= 1/2 ( 14+18)× 5
= 160/2
= 80in²
Learn more about rectangles here;
https://brainly.com/question/25292087
#SPJ1
How Long Is 500 Minutes In Hours And Minutes?
500 minutes are equal to 8 hours and 20 minutes.
Time is a valuable commodity that we must use wisely. We measure it in seconds, minutes, hours, days, weeks, months, and years. It is important to be able to convert time units so that we can manage our schedule efficiently.
To convert minutes to hours, we need to divide the number of minutes by 60, which is the number of minutes in an hour. Therefore,
500 minutes ÷ 60 minutes/hour = 8.33 hours
However, this answer is in decimal form, which is not a typical way to represent time. We want to express it in hours and minutes.
To do so, we will use the fact that there are 60 minutes in an hour. Therefore, we can multiply the decimal part of the answer by 60 to get the remaining minutes.
0.33 hours x 60 minutes/hour = 20 minutes
So, 500 minutes is equivalent to 8 hours and 20 minutes.
To know more about time here.
https://brainly.com/question/4199102
#SPJ4
how can you use proportional and nonproportional linear relationships to solve problems
What is the 6 times table?
The 6 times table is a multiplication table that shows the results of multiplying any number by 6.
It is a fundamental arithmetic skill that students typically learn in elementary school, and is an important building block for more advanced math concepts.
To generate the 6 times table, you simply multiply 6 by each whole number starting with 1, and continue the pattern up to a desired number. The first few products in the 6 times table are as follows:
1 x 6 = 6
2 x 6 = 12
3 x 6 = 18
4 x 6 = 24
5 x 6 = 30
6 x 6 = 36
7 x 6 = 42
8 x 6 = 48
9 x 6 = 54
10 x 6 = 60
...
and so on.
It is important for students to memorize the 6 times table, as it can be used to solve a variety of math problems involving multiplication, division, fractions, and decimals. Mastery of the 6 times table is also a key step in preparing for more advanced math concepts, such as algebra and calculus.
To learn more about table click on,
https://brainly.com/question/28872860
#SPJ4
Evaluate the triple integral ∭Ex8eydV, where E is bounded by the parabolic cylinder z=16−y2z=16 and the planes z=0,x=4,and x=−4
Refer to the images attached.
solving multi step equations with variables on both sides worksheets pdf
The solution to the equation −3 + 5a = 4a − 10 is a = -7.
First, we will start by subtracting 5a from both sides of the equation. This is the inverse operation of adding 5a to both sides. By subtracting 5a, the left side of the equation becomes -3 and the right side of the equation becomes -10.
=>−3 + 5a -5a = 4a - 5a − 10
=> -3 = -a - 10
So, we will add 3 to both sides of the equation. This will make the left side of the equation 0, and the right side of the equation -7.
=> -a = 7
Now that the equation reads a = -7, we can use the inverse operation of multiplication, which is division, to get the variable a on one side of the equation and the numbers on the other side.
To know more about equation here.
https://brainly.com/question/10413253
#SPJ4
Complete Question:
Equations w/ variable on both sides Solve each equation.
1) −3 + 5a = 4a − 10
What is the conversion of 1 oz to g ?
The conversion factor for converting ounces ( oz) to grams ( g) is 28.3495. Thus, the conversion of one ounce to grams is equals to the 28.3495 g.
In order to convert from one unit to the other, we multiply by the conversion factor. One ounce is approximately equal to 28.3495 grams. Ounce is one of the imperial units of mass, while gram is one of the metric units of mass. Thus to convert from ounces to grams, it is required to multiply the ounce-value by 28.3495. Conversly, if we want to convert from grams to ounces, we need to divide the gram-value by 28.3495. For example, if we want to convert x ounces to grams, we would follow the following steps:
Write down the value in ounces, which is x in this case.Multiply ounces value by 28.3495 to get the value in grams.This will give us a final result of approximately 28.3495x grams.Now, we have to convert 1 ounces to grams. That is x = 1 ounces then final result of conversion is
28.3495×1 = 28.3495 grams. Hence, required value is 28.3495 grams.
For more information about conversion factor, visit :
https://brainly.com/question/23718955
#SPJ4
can someone help me with the first one please!!!! ASAP
The perimeter of the trapezoid is 100
How to solve for the perimeterWe would have to solve for the perimeter of the trapezoid.
The perimeter p = sum of the four sides = a + b + c+ d
from the question we have
2 (2x + 8) = 7x - 2
4x + 16 = 7x - 2
- 3x = -16 - 2
x = 6
EF = 2x + 8
= 2(6) + 8
= 12 + 8
= 20
AB = 7x - 2
= 42 - 2
= 40
AE = 1/2AC = 1/2AB = 20
BF = 1/2 CB = 1/2 AB = 20
The perimeter would be
20 + 20 + 20 + 40
= 100
The perimeter = 100
Read more on trapezoid here:https://brainly.com/question/1463152
#SPJ1
FILL IN THE BLANK. ______- ______ regression makes the sum of the squared prediction errors as small as possible. (enter your answer as two words with a space in between. do not use a comma or a dash in your answer.)
Least squares regression makes the sum of the squared prediction errors as small as possible.
By minimizing the sum of the squared variances among the predicted values of the dependent variable and the actual values, least squares regression is a technique used to determine the line or curve that best fits the connection between two variables. A measure of how well a regression line or curve matches the observed data is the sum of squared prediction errors.
It is determined by adding up the squared discrepancies between each observation's actual and anticipated values for the dependent variable. Finding the line or curve that minimises this sum of squared prediction errors is the objective of least squares regression. The least squares regression line offers the best estimate of the relationship among two variables under consideration by minimising the sum of squared prediction errors. So, because it can aid in locating trends, patterns, and connections between variables in a dataset, least squares regression is frequently employed in statistical modelling and data analysis.
Read more about Least squares regression on:
https://brainly.com/question/30557674
#SPJ4
A 3-meter roll of brown paper costs $0.71. What is the unit price, rounded to the nearest cent?
Answer:
$0.24 per m
Step-by-step explanation:
The grand staircase has 13 steps. The
priest wants to know if he can climb this a
different way each day for a year using the
same rules as the priestess.
Is it possible?
How many ways are there of ascending the
grand staircase?
Explain why your answer is correct.
Multiple choice, word question about triangles. Should be easy, 20 points.
Answer:
Step-by-step explanation:
An equilateral right-angled triangle is impossible to draw. Equilateral means all the sides measure the exact same length. In a right triangle, by definition, the hypotenuse is longer than either of the other sides. so the last choice is the one you want.
Answer:
an equilateral right triangle cannot exist, all angles are 60° and therefore NOT right
Step-by-step explanation:
an equilateral right triangle cannot exist, all angles are 60° and therefore NOT right
SLOVE ASAP 27 POINTS
Answer:
9.5 in
Step-by-step explanation:
in order to calculate the area of the triangle, you are required to times the base with height and divide it by 2.
For this instance, 6.8 in X (unknown base) / 2 = 32.30
So what you need to do is times the 32.3 by 2 to get 64.6
Then divide the 64.6 by 6.8 to get the base
WHICH GETS YOU 9.5
hope this helps
Find the length of X
Answer:
[tex]x=3, x=\frac{17}{4}[/tex]
Step-by-step explanation:
The side opposite to the length of 20 is 7x - 11, whereas the side opposite to an unknown length is 4x - 2. To solve this unknown length, we are given 35 as the total length, so we can do 35-20 = 15, which is the opposite of the length of 4x-2.
Since we know the opposite sides of each side, we can set up these equations since we notice that the lengths are parallel based on what is diagrammed:
[tex]7x-11=20[/tex]
[tex]4x-2=15[/tex]
Now, let's solve for x in [tex]7x-11=20[/tex]:
[tex]7x-11=20[/tex]
[tex]7x=20+11\\7x=21\\x=3[/tex]
Let's solve for x in [tex]4x-2=15[/tex]:
[tex]4x-2=15[/tex]
[tex]4x=15+2\\4x=17\\x=\frac{17}{4}[/tex]