In the graph, LIFE EXPECTANCY VERSUS YEARS OF DRUG ABUSE, the slope indicates how life expectancy is influenced by years of drug abuse. In this case, as the number of years of drug abuse increases, life expectancy decreases. Therefore, the slope is negative.
Graphs are a visual representation of data, and they provide a convenient way of displaying trends and relationships between variables. The slope of a graph is a measure of the steepness of the line that connects the data points. In the graph, LIFE EXPECTANCY VERSUS YEARS OF DRUG ABUSE, the slope indicates how life expectancy is influenced by years of drug abuse.
In this case, as the number of years of drug abuse increases, life expectancy decreases. Therefore, the slope is negative. Therefore, the slope is an essential characteristic of a graph as it helps to show the relationship between variables. In this case, it shows that drug abuse has a detrimental effect on life expectancy. Furthermore, the slope of a graph can be used to calculate other important features such as the rate of change of a variable. In this case, it can be used to determine the rate at which life expectancy decreases as the number of years of drug abuse increases. The slope of a graph is an essential feature that provides information on the relationship between variables.
In the graph, LIFE EXPECTANCY VERSUS YEARS OF DRUG ABUSE, the slope shows that drug abuse has a negative impact on life expectancy. The slope can also be used to calculate other important features such as the rate of change of a variable. Therefore, understanding the slope is crucial for interpreting data and making informed decisions.
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322 Out of 450 is What Percent?
The percentage of 322 out of 450 using the percentage formula was found out to be approximately 71.56%.
To find the percentage of 322 out of 450, we can use the following formula:
percentage = (part/whole) x 100
where, "part" is the value we want to express as a percentage (in this case, 322), "whole" is the total value (in this case, 450), and "x" means "multiply".
Using the formula mentioned above, we get:
percentage = (322/450) x 100
percentage = 0.7156 x 100
percentage = 71.56%
Therefore, percentage of 322 out of 450 is approximately 71.56%.
A percentage is a way to express a number as a fraction of 100. It is often denoted using the "%" symbol.
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What is the radius of a circle if it’s center is (-3,-2) and one point on the circle is (5,-2)?
Answer:A.8
Step-by-step explanation:The distance from the centre to a point on the circle is the radius.
Calculate radius r using the distance formula
r = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (- 3, - 2) and (x₂, y₂ ) = (5, - 2)
r =
=
= = 8 → A
If (x + 1) is a factor of f(x) = 3x^3– 11x2 - 6x +8, what is f(x) written in completely factored form?
f(x) = (x + 1)(3x - 4)(x + 2)
f(x) = (x + 1)(3x - 2)(x-4)
f(x) = (x + 1)(3x - 4)(x - 2)
f(x) = (x + 1)(3x + 2)(x-4)
f(x) = (x + 1)(3x-2)(x + 4)
Answer:
x=4 i did math
Step-by-step explanation:
There are 30 giraffe and 6 penguin at the zoo. Which tatement correctly compare the two quantitie?
To compare the two quantities, divide the number of giraffes by the number of penguins There are 5 times as many giraffes as penguins at the zoo.
To compare the two quantities, you need to divide the number of giraffes by the number of penguins.
30 giraffes / 6 penguins = 5
This means that there are 5 times as many giraffes as penguins at the zoo.
There are 5 times as many giraffes as penguins at the zoo. To compare the two quantities, divide the number of giraffes by the number of penguins (30/6 = 5). This means that there are 5 times more giraffes than penguins at the zoo.
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If two coplanar lines are cut by _________ so that a pair of alternate interior angles are _,_____ then the two lines are parallel.
If two coplanar lines are cut by a transversal so that a pair of alternate interior angles are equal then the two lines are parallel.
The four sets of opposing angles that each have their own vertex point, are on different sides of the transversal and are both either internal or exterior are called alternate angles.
In geometry, a transversal line is one that cuts across the plane in two places. It does so at two spots where two lines meet. Many right angles are produced when two transverse lines meet. There are four types of similar angles: matching, alternative interior, alternate exterior, and co-interior.
In geometry, two lines are considered parallel if and only if all pairs of alternative interior angles in any transversal are equal.
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To rent a building for a school dance , Ava paid $120 plus $2. 50 for each student who attended. If she paid a total of $325 who many people attended this dance
82 students attended the dance.
In algebra, an equation can be expressed as a mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value.
An equation is defined as two expressions, connected by an equals sign ("="). The expressions on the two sides of the equals sign are said the "left-hand side" and "right-hand side" of the equation. Assuming this does not reduce the generality, this can be realized by subtracting the right-hand side from both sides.
According to the given problem,
Let the number of students be x,
2.50x + 120 = 325
⇒ 2.5x = 325 - 120
⇒ 2.5x = 205
⇒ x = 82
Hence, 82 students attended the dance.
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1) Explain what terms and degrees are. How are they used to classify polynomials?
Term =
Degree of Term =
Degree of Polynomial =
2) Classify this polynomial by degree and number of terms: 4x^2y^2 - 6xy + 2x^3y^2
3) What is a composite function and how does it work?
Answer:
1) A term is a number, variable, or group of variables with coefficients.Terms are separated by a + = - ÷ or x sign.
The degree of a term is the exponent the term is raised to.
The degree of a polynomial is the highest exponent any of the terms in the polynomial is raised to.
2) Number of terms is 3. The degree of the polynomial is 5
3) A composite function is a function that has another function substituted into it.
Step-by-step explanation:
How many and what type of solutions does 5x2−2x+6 have?
1 rational solution
2 rational solutions
2 irrational solutions
2 nonreal solutions
Answer:
2 nonreal solutions
Step-by-step explanation:
given a quadratic equation in standard form
ax² + bx + c = 0 (a ≠ 0 )
then the nature of the roots are determined by the discriminant
b² - 4ac
• if b² - 4ac > 0 then 2 real and irrational solutions
• if b² - 4ac > 0 and a perfect square then 2 real and rational solutions
• if b² - 4ac = 0 then 2 real and equal solutions
• if b² - 4ac < 0 then no real solutions
5x² - 2x + 6 = 0 ← in standard form
with a = 5 , b = - 2 , c = 6
b² - 4ac
= (- 2)² - (4 × 5 × 6)
= 4 - 120
= - 116
since b² - 4ac < 0
then there are 2 nonreal solutions to the equation
for each of the following, show that the differential form is not exact, but becomes exact when multiplied through by the given integrating factor
To determine if a differential form is exact, we need to check if its partial derivatives satisfy the condition of equality. If the differential form is not exact, we can multiply it by an integrating factor to make it exact.
Given a differential form of the form M(x, y)dx + N(x, y)dy, we can determine if it is exact by checking if ∂M/∂y = ∂N/∂x. If this condition is not satisfied, the differential form is not exact. However, we can multiply the differential form by an integrating factor to make it exact.
By multiplying the original differential form by an integrating factor, which is usually a function of either x or y, the resulting form will have equal partial derivatives, satisfying the condition for exactness. The integrating factor effectively "corrects" the form and makes it exact.
By finding the appropriate integrating factor and multiplying it with the given differential form, we can transform it into an exact form. This process is a fundamental technique in solving certain types of differential equations and allows us to find solutions that would otherwise be challenging to obtain.
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Find the midpoint of the given line segment with the given endpoints
(-3, 8) and (2, -4)
The midpoint of the given line segment with the given endpoints
(-3, 8) and (2, -4) is (-0.5, 2)
Midpoint of coordinatesThe formula for calculating the midpoint of coordinate is expressed as;
M(x, y) = (x₁+x₂/2, y₁+y₋/2 )
Given the coordinate points( -3, 8) and (2, -4)
Substitute
M(x, y) = (-3+2/2, 8-4/2)
M(x, y)= (-1/2, 4/2)
M(x, y) =(-0.5, 2)
Hence the midpoint of the given line segment with the given endpoints
(-3, 8) and (2, -4) is (-0.5, 2)
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1. The ratio (10^2000+10^2002) : (10^2001+10^2001)is closest to which whole number?
Answer:
5
Step-by-step explanation:
The whole number obtained as the result of the ratio (10²⁰⁰⁰⁰+10²⁰⁰²) : (10²⁰⁰¹+10²⁰⁰¹) is 5.
What is the ratio?It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers. Comparing two numbers by dividing them is how ratios work. Your formula would be A/B if you were contrasting one data point (A) with another data point (B).
It is given that the ratio is,
(10²⁰⁰⁰⁰+10²⁰⁰²) : (10²⁰⁰¹+10²⁰⁰¹)
We have to apply the arithmetic operation for the given ratio in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
\(=\frac{10^{2000}+10^{2002}}{10^{2001}+10^{2001}} \\\\ =\frac{10^{2000}(1+100)}{10^{2000}(10+10)} \\\\ =\frac{101}{20} \\\\=5\)
Thus, the whole number obtained as the result of the ratio (10²⁰⁰⁰⁰+10²⁰⁰²) : (10²⁰⁰¹+10²⁰⁰¹) is 5.
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find the surface area of the trianglar prism
Answer:
Surface area = (Perimeter of the base × Length of the prism) + (2 × Base Area) = (S1 + S2+ S3)L + bh; where 'b' is the bottom edge of the base triangle, 'h' is the height of the base triangle, L is the length of the prism
three consecutive integers are such that four times the smallest is three times the largest. what is the largest of these three integers? A. 6 B. 8 C. 10 D. 12
The correct response is B. 8. The largest of these three integers is 8.
Zero, a positive natural number, and a negative integer denoted by a minus sign are all examples of integers. The negative numbers are the inverse additions of the comparable positive numbers. 0 is an integer because it may be expressed as a full number with no remainder. True. Whole numbers are defined as 0, 1, 2, 3, 4, and so forth. Positive integers are produced when two positive numbers are added as opposed to two negative integers, which results in a sum with a negative sign. The outcome of subtracting two separate signed integers, with the sign of the result matching that of the larger number, is always subtraction.
Let the three consecutive integers be x,(x+1),(x+2)
About the issue, we have
4x=3(x+2)
∴4x=3x+6
∴4x−3x=6
∴x=6
The biggest number will be (x+2)=6+2=8
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The smallest of the three consecutive integers is 6. The largest of these integers is 8. Therefore, the answer is B. 8.
The problem involves finding three consecutive integers such that four times the smallest is three times the largest. To solve the problem, we first let x be the smallest integer. Then, the next two consecutive integers are x+1 and x+2. Using the given information, we can set up an equation and solve for x. Simplifying the equation yields x=6, which means the three consecutive integers are 6, 7, and 8.
Let's call the smallest of the three consecutive integers "x". Then, the next two consecutive integers are x+1 and x+2.
From the given information, we can set up the following equation:
4x = 3(x+2)
Simplifying and solving for x, we get:
x = 6
Therefore, the three consecutive integers are 6, 7, and 8, and the largest of these three integers is 8. So, the answer is:
B. 8
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I need help....I don't understand......
Answer:
sorry but I can understand
A survey was conducted in a large city to investigate public opinion on banning the use of trans fats in restaurant cooking. A random sample of 230 city residents with school-age children was selected, and another random sample of 341 city residents without school-age children was also selected. Of those with school-age children, 94 opposed the banning of trans fats, and of those without school-age children, 147 opposed the banning of trans fats. An appropriate hypothesis test was conducted to investigate whether there was a difference between the two groups of residents in their opposition to the banning of trans fats. Is there convincing statistical evidence of a difference between the two population proportions at the significance level of 0.05?
(A) Yes, because the sample proportions are different.
(B) Yes, because the probability of observing a difference at least as large as the sample difference is greater than 0.05.
(C) Yes, because the probability of observing a difference at least as large as the sample difference, if the two population proportions are the same, is less than 0.05.
(D) No, because the probability of observing a difference at least as large as the sample difference, if the two population proportions are the same, is greater than 0.05.
(E) No, because the probability of observing a difference at least as large as the sample difference is less than 0.05.
The correct answer is (C) Yes, because the probability of observing a difference at least as large as the sample difference, if the two population proportions are the same, is less than 0.05.To determine if there is convincing statistical evidence of a difference between the two groups of residents in their opposition to the banning of trans fats, we can conduct a hypothesis test for the difference in population proportions.
The null hypothesis (H0) states that there is no difference between the two population proportions, while the alternative hypothesis (Ha) states that there is a difference.
To conduct the test, we calculate the sample proportions of opposition to the banning of trans fats in each group. In the group with school-age children, the sample proportion is 94/230 = 0.409, and in the group without school-age children, the sample proportion is 147/341 = 0.431.
Next, we calculate the standard error of the difference between the sample proportions using the formula:
SE = sqrt[(p1 * (1 - p1) / n1) + (p2 * (1 - p2) / n2)]
where p1 and p2 are the sample proportions, and n1 and n2 are the sample sizes.
After calculating the standard error, we calculate the test statistic, which follows an approximately normal distribution when the sample sizes are large. The test statistic is given by:
test statistic = (p1 - p2) / SE
Using a significance level of 0.05, we compare the test statistic to the critical value from the standard normal distribution.
If the test statistic falls outside the critical region, we reject the null hypothesis and conclude that there is convincing statistical evidence of a difference between the two population proportions. Otherwise, we fail to reject the null hypothesis.
In this case, the correct answer is (C) Yes, because the probability of observing a difference at least as large as the sample difference, if the two population proportions are the same, is less than 0.05.
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a man purchased a second hand car for 640000 and spend rupees 18950 for repairing it if the car was sold after 3 years at the rate 5% compound depreciation. find his loss
Answer:
40000 and 12.5% respectively
Step-by-step explanation:
soln:
given,
cost price(c.p)=320000
selling price(s.p)=280000
loss(l),loss percentage(l%)=?
we know,
l=c.p-s.p
or,l=320000-280000
•°•l=40000
now,
l%=l/c.p*100%
or,l%=40000/320000*100%
•°•l%=12.5%
Citrix Apps Apps CANVAS > Home EPB Intranet 7. -/2 points RogaCalcET4 13.5.017.Tutorial. Find r(t) and v(t) given a(t) and the initial velocity and position. a(t) = tk, v(0) = 4i, r(0) = 2; v(t) = r(t) = Additional Materials Tutorial +-12 points RogaCalcETA 19 rann
The position value, r(t) is equals to the (t³/6)k + 2j and velocity value, v(t) is equals to ( t²/2 )k + 4i , for a(t) = tk, v(0) = 4i, r(0) = 2j.
Acceleration is defined as the rate of change of the velocity of an object with respect to time. Accelerations are vector quanty.
a = dv/dt
We have the following informations are available,
Initial velocity, v(0) = 4i
Initial position, r(0) = 2j
Acceleration at any time "t",
a(t) = tk
we have to determine the value of v(t) and r(t).
As we know, a(t) = dv(t)/dt = tk
integrating the above equation ,
v(t) = ∫tk dt = ( t²/2 )k + c
at t = 0 , v(0) = 0 + c = 4i ( since, v(0) = 4i
=> c = 4i
So, v(t) = ( t²/2 )k + 4i
Also, velocity is calculated by derivative of postion (r) with respect to time.
=> v(t) = dr(t) /dt
=> r(t) = ∫ v(t) dt
=> r(t) = ∫ ( t²/2 )k dt
integrating value of the right hand side,
r(t) = ( t³/2×3 )k +d
= (t³/6)k + d
At t = 0, r(0) = (0/6)k + d
=> r(0) = d = 2j
so, r(t) = (t³/6)k + 2j
Hence, the required position and velocity are
(t³/6)k + 2j and ( t²/2 )k + 4i.
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the volume v of a cone is increasing at a rate of 28 pi cubic units per second. at the instant when the radius r of the cone is 3 units its volume is 12 pi cubic units and the radius is increasing at 1/2 unit per second
The height of the cone is increasing at a rate of 16/9 units per second when the volume is 12 pi cubic units and the radius is 3 units.
To find the rate at which the radius is changing when the volume of the cone is 12 pi cubic units and the radius is 3 units, we can use related rates.
Given:
- Volume rate of change: dv/dt = 28 pi cubic units per second
- Radius: r = 3 units
- Volume: V = 12 pi cubic units
- Radius rate of change: dr/dt = 1/2 unit per second
We can use the formula for the volume of a cone: V = (1/3) pi r^2 h, where h is the height of the cone.
Since we only have the radius, we need to find the height in order to calculate the rate of change of the radius.
Given that the radius is 3 units, we can use the formula for the volume to solve for the height:
12 pi = (1/3) pi (3^2) h
Simplifying the equation, we get:
12 = (1/3) * 9 * h
h = 12 / (1/3 * 9)
h = 4
Now, we can differentiate the volume equation implicitly with respect to time (t) to find the relationship between the volume and radius rates of change:
dV/dt = (1/3) pi * (2r * dr/dt) * h + (1/3) pi * r^2 * dh/dt
Plugging in the given values:
28 pi = (1/3) pi * (2 * 3 * (1/2)) * 4 + (1/3) pi * (3^2) * dh/dt
Simplifying the equation, we get:
28 = 12 + 9 * dh/dt
dh/dt = (28 - 12) / 9
dh/dt = 16/9
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2) Solve : You and a friend go to El Super Taco after school. You order three soft tacos and two burritos and pay $11. Your friend pays $8 for four soft tacos and one burrito. How much do tacos cost? How much do burritos cost?
Answer:
A burrito costs 2.8 dollars.
Step-by-step explanation:
3b + 2t = 11
1b + 4t = 8
b = 14/5, t = 13/10
14/5 as a mixed number is 2 4/5
4/5 of a dollar is 80 cents.
So b = 2.8
A burrito costs 2.8 dollars.
the area of square is 64cm square .find its length
Answer:
8 cm
Step-by-step explanation:
Because A=a*a
Area equals length times length
So, 8 is the length
64 divided by some number must equal the exact same number. Let me show what I am talking about.
Our length is a. We multiply a times itself (because that's the formula for the square's area)
Does this number exist?
Yes, it does.
And it's a whole number.
And we know from our times tables that 8*8=64
Hope it helped you
Answer:
8 cm
Step-by-step explanation:
please mark me as brainliest
While solving an equation, if the variable term becomes zero, and the equation makes a true statement, then the solution is
The equation's remaining constant is the answer if the variable term eventually equals zero and the equation can be said to be true.
By isolating the variable on one side of the equation, we can arrive at a numerical value that satisfies the equation. However, in rare circumstances, the variable term may become zero while the equation is being simplified.
When a common factor is eliminated or an expression containing the variable is simplified, this can take place. The equation has a solution, and that solution is the constant value left over if, after removing the variable element, we arrive at a true assertion.
This is due to the equation's ability to be simplified to a declaration of equality between two constants if the variable term is zero. The constant value is the answer to the equation if the aforementioned assertion is accurate.
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Guys pls pls help this is due today and I need help!!!!!!!
Answer:
y=3^x
Step-by-step explanation:
The value of XY if Y is between X and Z, XY = 3a, XZ = 5a-4, and YZ = 14
What’s the answer ?? Please help
Answer: 27
Step-by-step explanation:
\(XY+YZ=XZ\\\\3a+14=5a-4\\\\14=2a-4\\\\18=2a\\ \\ a=9\\\\\implies XY=3(9)=27\)
Show full work please
The temperature in degrees celcius in which bacteria cannot survive is greater than 3.66
Subject of formulaThis is a way of representing a variable with another
Given the inequality below;
q/5 C + 32 ≥ 120
Substitute C = 120oF
q/5(120) + 32 ≥ 120
24q + 32 ≥ 120
24q ≥ 120 - 32
24q ≥ 88
q ≥ 88/24
q ≥ 3.66
Hence the temperature in degrees celcius in which bacteria cannot survive is greater than 3.66
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Part of a bus timetable is shown below. The average speed of the bus between Hawkes Meadow and Brunswick Street is 29 km/h. Work out how many kilometres the bus travels between these two stops. If your answer is a decimal, give it to 1 d.p.
The distance that the bus travels between Hawkes Meadow and Brunswick Street is; 7.3 km
How to calculate the total distance?The formula for distance here is;
Total distance = Speed * Time
Now, we are given the speed as 29 km/hour
Now, we want to find the total distance between Hawkes Meadow and Brunswick Street.
The time between Hawkes Meadow and Brunswick Street from the attached table is 14:40 - 14:25 = 15 minutes.
Converting to hours = 15/60 = 1/4 hours
Thus;
Total distance = 29 * 1/4 ≈ 7.3 km
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(1 point) a bowl contains 6 red balls and 7 blue balls. a woman selects 4 balls at random from the bowl. how many different selections are possible if at least 3 balls must be blue?
The number of different selections possible if at least 3 balls must be blue is 35
1. Calculate the total number of possible selections (6 red + 7 blue = 13 total): 13C4 = 715
2. Calculate the number of possible selections that have fewer than 3 blue balls: 6C4 = 15
3. Subtract the number of possible selections with fewer than 3 blue balls from the total number of possible selections: 715 - 15 = 700
4. Divide the answer by the number of selections with exactly 3 blue balls: 700/7 = 100
5. Multiply the result by the number of selections with exactly 4 blue balls: 100 * 7 = 700
6. Finally, subtract the number of selections with 4 blue balls from the total number of possible selections: 715 - 700 = 35
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Which is the BEST example of a domain-specific
Answer:
Example 2:
Step-by-step explanation:
The domain is the set of x -coordinates, {0,1,2} , and the range is the set of y -coordinates, {7,8,9,10} . Note that the domain elements 1 and 2 are associated with more than one range elements, so this is not a function.
What is the equation of the line that passes through the point (4, - 7) and has a slope of ? -1/2
Answer:
y= -1/2x -5
Step-by-step explanation:
in slope intercept form
Answer:
y=-1/2x-5
Step-by-step explanation:
Hope it helps!
Round 5.768 to the nearest whole number.
which of the following is most important in gathering data for use in statistical analysis? a. both efficiency and effectiveness are important when gathering data. b. the data should always be discarded immediately after gathering. c. the data should be gathered in an effective manner. d. the data should be gathered in an efficient manner.
The statement that is most important in gathering data for use in statistical analysis is option (a) Both efficiency and effectiveness are important when gathering data
Option a. Both efficiency and effectiveness are important when gathering data is the most appropriate answer.
Efficiency refers to the ability to gather data quickly and with minimal resources, while effectiveness refers to the ability to gather accurate and relevant data that is suitable for the intended analysis. Both of these factors are crucial in gathering data for statistical analysis.
Option b. The data should always be discarded immediately after gathering is incorrect because data is usually retained for further analysis and is not discarded immediately after gathering.
Option c. The data should be gathered in an effective manner is partially correct, but it does not address the importance of efficiency in the data gathering process.
Option d. The data should be gathered in an efficient manner is also partially correct, but it does not address the importance of effectiveness in the data gathering process.
Therefore, the correct option is (a) both efficiency and effectiveness are important when gathering data
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