(Please help)Choose the correct answer and please explanation each (Brainliest)
1.let x be the number of boys and y, the number of girls in a camp. the number of girls exceeds twice the number of boys by 12. This relation is given by which of the following equation?
A. x=2y+12
B. y=12–2x
C. y=12+2x
D. y=2(12–x)
2.Which of the following ordered pairs is a point in the region described by the inequality y>x?
A. (-1, -2)
B. (1,0)
C. (3,2)
D. (4,8)
3.Which of the following ordered pairs does NOT satisfy the inequality x+y<5?
A. (-1,-4)
B. (0,4)
C. (1,7)
D. (2,2)
Answers
Answer:
1. C
2. D
3. C
Explanation:
1. Girls = 12 plus twice the number of boys, so C. y = 12 + 2x.
2. You have to see which point has the second value being greater than the first value:
A) -1 > -2 is not true
B) 0 > 1 is not true
C) 2 > 3 is not true
D) 8 > 4 is true, so it's D
3. Add the two values and see if it's less than 5
A) -1-4 < 5 is true
B) 0 + 4 < 5 is true
C) 1 + 7 < 5 is not true, so this is the answer
D) 2 + 2 < 5 is true
Related Questions
( i will mark brainliest )
Part A: Mai made 50 flyers for five volunteers in her club to hang up around school. She gave 5 flyers to the first volunteer, 18 flyers to the second volunteer, and divided the remaining flyers equally among the three remaining volunteers.
Part B: to thank her volunteers, mai gave each of them the same number of stickers. Then she gave them each two more stickers. Altogether she gave them a total of 30 stickers
Part C: Mai distributed another group of flyers equally among the five volunteers. Then she remembered that she needed some flyers to give to teachers, so she took 2 flyers from each volunteer. Then, the volunteers had a total of 40 flyers to hang up.
( i will mark brainliest )
Answers
The answer of the following question based on number of flyers get by each volunteers is given by :
a. Number of flyers get by remaining volunteers is equal to 9 each.
b. Number of stickers received by each of the volunteers is 6 each.
c. Number of flyers left with each volunteer is First 3, second 16, remaining three 7 each.
As given in the question,
Total number of flyers with Mai is equal to 50
Number of flyers with first volunteer = 5
Number of flyers with second volunteer = 18
a. Remaining flyers = 50 - ( 5 + 18 )
= 27
Equally divided among three volunteers
= 27 / 3
= 9
b. Total number of stickers = 30
Total number of volunteers = 5
Stickers divided equally
Number of stickers with each volunteers = 30 / 5
= 6
c. 2 flyer taken from each volunteer for teachers
Number of flyers left with each volunteer
First volunteer = 5 - 2
= 3
Second volunteer = 18 - 2
= 16
Remaining three volunteers = 9 - 2
= 7.
Therefore, number of flyers and stickers divided among the volunteers are as follow:
a. Number of flyers get by remaining volunteers is equal to 9 each.
b. Number of stickers received by each of the volunteers is 6 each.
c. Number of flyers left with each volunteer is First 3, second 16, remaining three 7 each.
The above question is incomplete, the complete question is :
Part A: Mai made 50 flyers for five volunteers in her club to hang up around school. She gave 5 flyers to the first volunteer, 18 flyers to the second volunteer, and divided the remaining flyers equally among the three remaining volunteers. Find the number of flyers get by remaining three volunteers?
Part B: to thank her volunteers, Mai gave each of them the same number of stickers. Then she gave them each two more stickers. Altogether she gave them a total of 30 stickers. Find the number of stickers received by each volunteers?
Part C: Mai distributed another group of flyers equally among the five volunteers. Then she remembered that she needed some flyers to give to teachers, so she took 2 flyers from each volunteer. Then, the volunteers had a total of 40 flyers to hang up. Find the number of flyers left with each volunteers ?
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What percent of the people are between 20 and 37 years old
Answers
Find the values of a for which y = eᵃˣ satisfies the equation y" = 4y' – 3y. a. a = 1 and a = -1 b. a = 3 and a = -3 c. a = -1 and a = -3 d. a = 1 and a = 3
Answers
We start by finding the first and second derivatives of y = eᵃˣ. Therefore, the values of a that satisfy the equation are a = 1 and a = 3, which is answer choice d
y' = aeᵃˣ
y'' = a²eᵃˣ
Now we substitute these into the given equation and simplify:
y'' = 4y' - 3y
a²eᵃˣ = 4aeᵃˣ - 3eᵃˣ
eᵃˣ(a² - 4a + 3) = 0
Since eᵃˣ is never zero, we must have:
a² - 4a + 3 = 0
(a - 1)(a - 3) = 0
Therefore, the values of a that satisfy the equation are a = 1 and a = 3, which is answer choice d.
To find the values of a for which y = eᵃˣ satisfies the equation y" = 4y' – 3y, follow these steps:
1. Find the first derivative y': Differentiate y = eᵃˣ with respect to x.
y' = a * eᵃˣ
2. Find the second derivative y": Differentiate y' with respect to x.
y" = a² * eᵃˣ
3. Substitute y, y', and y" into the given equation: y" = 4y' – 3y
a² * eᵃˣ = 4(a * eᵃˣ) - 3(eᵃˣ)
4. Factor out eᵃˣ from the equation:
eᵃˣ (a² - 4a + 3) = 0
Since eᵃˣ is never equal to zero, the quadratic expression inside the parentheses must be equal to zero:
5. Solve the quadratic equation: a² - 4a + 3 = 0
(a - 1)(a - 3) = 0
6. Find the values of a:
a = 1 and a = 3
Therefore, the correct answer is option d: a = 1 and a = 3.
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The units of the subway map below are in miles. Suppose the routes between stations are straight. Find the approximate distance a passenger would travel
between stations J and K.
The distance from Station 3 to Station K is approximately __ miles.
(Round to the nearest tenth as needed.)
Answers
Answer:
if anyone got the question asking between stations b and d instead of j and k the answer is 6
Step-by-step explanation:
6
Answer:
8.9
Step-by-step explanation:
The table represents a linear function.
y
8
X
-2
-1
0
1
2
2
-4
-10
-16
What is the slope of the function?
-6
0-4
04
06
Answers
to get the slope of any straight line, we simply need two points off of it, let's use those two in the picture below.
\((\stackrel{x_1}{-2}~,~\stackrel{y_1}{8})\qquad (\stackrel{x_2}{1}~,~\stackrel{y_2}{-10}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{-10}-\stackrel{y1}{8}}}{\underset{\textit{\large run}} {\underset{x_2}{1}-\underset{x_1}{(-2)}}} \implies \cfrac{-18}{1 +2} \implies \cfrac{ -18 }{ 3 } \implies - 6\)
The slope of the given function is -6.
What is a slope?Slope is a value that describes the steepness and direction of a line.
Given are the input and the output value of a function we need to find the slope of the function,
So,
m = y₂ - y₁ / x₂ - x₁
Taking first two ordered pairs,
(-2, 8) and (-1, 2)
So, the slope (m) = 8-2 / -2+1 = 6 / -1 = -6
Hence, the slope of the given function is -6.
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Find the equation of the line that contains the points whose coordinates are (−2, 3) ( − 2 , 3 ) and has slope −2/3
Answers
Answer:
y = -2/3x + 5/3
Step-by-step explanation:
y = -2/3 x + b
3 = -2/3 (-2) + b
3 = 4/3 + b
5/3 = b
Hope this helps <3
Q4. The sum of three consecutive odd numbers is 51 Find the numbers: (2)
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Answers
Answer:
15,17,19
Step-by-step explanation:
Here's your solution
=> let the first number be x
=> then second and third number will be
(x + 2) and (x + 4)
=> now it's given that sum is 51
=> so, x + (x + 2) + (x + 4) = 51
=> 3x + 6 = 51
=> 3x = 51 - 6
=> 3x = 45
=> x = 45/3
=> x = 15
hence ,the following number are , 15,17,19
hope it helps
0.72...0.702 put < or > between the numbers in each pair
Answers
Answer:
0.72>0.702
Step-by-step explanation:
5(x+6)12 how do i solve this
Answers
5x+360
I think..
Answer:
60x + 360
Step-by-step explanation:
5 • (x+6) • 12
(5x+30) • 12
60x +360
3. Which test point should you always try to use?
a.) (0,0)
b.) (1,1)
Answers
Answer:
b
Step-by-step explanation:
pls give brainiest
have a great day
$131,701. 32 is what percent of $790,207. 91?
Answers
To find the percentage, we can use the following formula:
Percentage = (Part / Whole) * 100
So, $131,701.32 is approximately 16.67% of $790,207.91.
In this case, the part is $131,701.32 and the whole is $790,207.91.
Percentage = ($131,701.32 / $790,207.91) * 100
Calculating the value:
Percentage ≈ 0.1667 * 100
Percentage ≈ 16.67%
Therefore, $131,701.32 is approximately 16.67% of $790,207.91.
Alternatively, we can calculate the percentage by dividing the part by the whole and multiplying by 100:
Percentage = ($131,701.32 / $790,207.91) * 100 ≈ 0.1667 * 100 ≈ 16.67%
So, $131,701.32 is approximately 16.67% of $790,207.91.
If you have any further questions, feel free to ask!
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helelelelpp me for brainlist you get right brainlist
Answers
Answer: B
Step-by-step explanation:
First find the area of the rectangle:
A = lw
A = 6*12 = 72 mm^2
Find the area of the semi circle:
A = (pi*r^2)/2
A = (3.14)*(3^2)/2 = 14.13 mm^2
Total area = 72 + 14 = 86 mm^2
What is the inverse of the statement?
A number that has exactly two distinct factors is prime.
If a number has exactly two distinct factors, then the number is prime.
If a number does not have exactly two distinct factors, then the number is not prime.
If a number is not prime, then the number does not have exactly two distinct factors.
If a number is prime, then the number has exactly two distinct fac
Answers
The inverse of the statement is "If a number does not have exactly two distinct factors, then the number is not prime." Thus Option 2 is the answer.
When a conditional statement is reversed, the hypothesis and conclusion are both negated. The hypothesis in the original statement is "a number with exactly two distinct factors," while the conclusion is "is prime."
To make the inverse, we negate both sections. "A number does not have exactly two distinct factors" is the antonym of "A number that has exactly two distinct factors." "Is not prime" is the opposite of "is prime."
As a result, the inverse statement is "If a number does not have exactly two distinct factors, then the number is not prime."
It's crucial to remember that a statement's inverse could or might not be accurate. In this instance, the inverse is true since the definition of a prime number is incompatible with the fact that a number has more than two components if it has more than exactly two different factors.
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A set that contains no elements or the number of elements in the set is a natural number is called.
Answers
Answer: It's called a finite. The opposite of a finite is a infinite set.
Step-by-step explanation:
kind of simple I don't know
for the given point in polar coordinates, find the correspodning rectangular coordinates for the point (7, -pi/2)
Answers
The point (7, -π/2) in polar coordinates corresponds to the rectangular coordinates (0, -7), representing a point on the negative y-axis.
In polar coordinates, a point is represented by its distance from the origin (r) and its angle from the positive x-axis (θ). For the given point (7, -π/2), the distance from the origin is 7 units (r = 7), and the angle is -π/2 radians.
To convert this point to rectangular coordinates, we can use the following formulas:
x = r * cos(θ)
y = r * sin(θ)
Applying these formulas to the given values, we get:
x = 7 * cos(-π/2)
y = 7 * sin(-π/2)
The cosine of -π/2 is 0, and the sine of -π/2 is -1, so we can substitute these values into the formulas:
x = 7 * 0 = 0
y = 7 * (-1) = -7
Therefore, the rectangular coordinates for the point (7, -π/2) are (0, -7). This represents a point on the negative y-axis, where the x-coordinate is 0 and the y-coordinate is -7.
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Declaring variables - Declare two integer variables x and y, - Assign them any values. - Print addition/subtraction/multiplication and division of these two variables on to the screen
Submission Task (- Grade 1%) Follow the same steps asin Exercise 2, but change the step 2 to ask the user for input forthese values by using Scanner class.
Answers
Two integer variables x and y, prompts the user to enter values for them using the Scanner class, and performs addition, subtraction, multiplication, and division operations on those variables:
import java.util.Scanner;
public class VariableOperations {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the value for x: ");
int x = scanner.nextInt();
System.out.print("Enter the value for y: ");
int y = scanner.nextInt();
// Addition
int addition = x + y;
System.out.println("Addition: " + addition);
// Subtraction
int subtraction = x - y;
System.out.println("Subtraction: " + subtraction);
// Multiplication
int multiplication = x * y;
System.out.println("Multiplication: " + multiplication);
// Division
if (y != 0) {
double division = (double) x / y;
System.out.println("Division: " + division);
} else {
System.out.println("Cannot divide by zero.");
}
}
}
This code prompts the user to enter values for x and y, performs the four basic arithmetic operations, and displays the results on the screen.
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A researcher carried out a hypothesis test using a two-tailed alternative hypothesis. Which of the following z-scores is associated with the smallest p-value?
a. z = 0.39
b. z = 1.35
c. z = -2.38
d. z = -3.24
Answers
The smallest p-value is always associated with the z-score that is furthest away from the mean. This is because the tails of the normal distribution curve have less area and thus represent smaller p-values. The correct answer is option (d) z = -3.24.
In a hypothesis test, there are two hypotheses: the null hypothesis (H0) and the alternative hypothesis (H1).
The null hypothesis is the one we're testing, while the alternative hypothesis is the one we're trying to support or prove.
A two-tailed alternative hypothesis is one in which we are interested in whether a parameter is not equal to a certain value, as opposed to one-tailed alternative hypotheses, in which we are interested in whether the parameter is greater than or less than a certain value.
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Someone please help and make sure it’s right please :)
Answers
Answer:
2
Step-by-step explanation:
28x - 1 = 27x + 1 (being alternate angles)
28x - 27x = 1 + 1
x = 2
Hope it will help :)
Rearrange it to isolate x to get:
x=2
convert 500 minutes to hours
Answers
Answer:
8.33
Step-by-step explanation:
1hr=60 minutes
?hr = 500 minutes
To find how many hours, divide 500 by 60
500/60 = 8.33
500 minutes = 8.33 hours
if ( 3x + 2) (5x + 1) = ax2 + bx + 2
What is the value of a - b ?
Answers
a - b= 2
Step-by-step explanation:
expanding the brackets
we have 15x^2+13x+2
a= 15 b= 13
thus, a-b =15-13
=2
The value of a - b if, (3x + 2) (5x + 1) = ax² + bx + 2 is 2 i.e a - b = 2.
What is expression?At least two numbers or variables, one or more arithmetic operations, and a statement are all required components of a mathematical expression. The term "expression" or "mathematical expression" refers to a finite collection of symbols that are well-formed in line with context-dependent criteria.
Given:
(3x + 2) (5x + 1) = ax² + bx + 2
Write the left term of the equation in the format of the right term,
3x (5x + 1) + 2(5x + 1)
15x² + 3x + 10x + 2
15x² + 13x + 2
Compare the above equation to ax² + bx + 2,
a = 15 and b = 13
Calculate the value of a - b as shown below,
a - b = 15 - 13
a - b = 2
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Write an equation dor thi math problemfAt one tore a trophy cot $12. 50. Engraving cot $0. 40 per letter. At another tore, the ame trophy cot $14. 75. Engraving cot $0. 25
Answers
The equation we get from the given information that is one award that cost $12.50 was torn. Each letter costs $0.40 to engrave is 2.25x - 0.15y=0.
Given that,
We have to compose an equation for this math issue. One award that cost $12.50 was torn. Each letter costs $0.40 to engrave. The identical trophy cost $14. 75 at another location. Cost of engraving: $0.25
We know that,
Let us take the,
Trophy cot as x and engraving cot as y
We can write as
12.5x+ 0.4y= 14.75x+ 0.25y
12.5x- 14.75x+ 0.4y -0.25y=0
-2.25x + 0.15y=0
2.25x - 0.15y=0
Therefore, The equation we get from the given information that is one award that cost $12.50 was torn. Each letter costs $0.40 to engrave is 2.25x - 0.15y=0.
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does anyone know how to find the area of a triangle on a graph ? THIS CAN BOOST MY GRADE BY THREE LETTERS!
Answers
Answer:
1/2bh
Step-by-step explanation:
graph has base and height
also triangle have base and height
The Kennedy High School cross-country running team ran the following distances in recent practices: 3. 5 miles, 2. 5 miles, 4 miles, 3. 25 miles, 3 miles, 4 miles, and 6 miles. Find the mean and median of the team’s distances
Answers
The mean of the team’s distances is 3.75 miles. The median of the team’s distances is 3.5 miles.
To find the mean of the distances run by the Kennedy High School cross-country running team, we will first add up all the distances and then divide by the number of distances. The distances ran by the Kennedy High School cross-country running team are:
3.5 miles, 2.5 miles, 4 miles, 3.25 miles, 3 miles, 4 miles, and 6 miles adding up these distances, we get:
3.5 + 2.5 + 4 + 3.25 + 3 + 4 + 6 = 26.25
So the sum of the distances is 26.25 miles. Now, to find the mean, we will divide by the number of distances, which is 7. Therefore, the mean of the distances is: Mean = Sum of distances / Number of distances
Mean = 26.25 / 7
Mean = 3.75 miles
To find the median of the distances run by the team, we will first arrange the distances in order from smallest to largest:2.5 miles, 3 miles, 3.25 miles, 3.5 miles, 4 miles, 4 miles, 6 miles
Now, we will find the middle value. Since there are 7 distances, the middle value will be the 4th value. Counting from the left, the 4th value is 3.5 miles. Therefore, the median of the distances ran by the team is 3.5 miles.
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Fill in the blank with the correct response.
If x:6 as 3:9, then x is equal to .
Answers
Answer:
X is equals to 2
Step-by-step explanation:
I hope it helps you
Answer: 2
x/6 = 3/9
9x = 18
x = 2
How many inches means 1 feet?
Answers
1 foot is equal to 12 inches. So one feet is equal to 12 inches. The conversion factor between feet and inches is 1 ft = 12 in.
Inches (in) and feet (ft) are both units of measurement for length, but they are not directly interchangeable. To convert a measurement of length from feet to inches, you will need to use a conversion factor.
To convert a measurement of length from feet to inches, you will multiply the number of feet by the conversion factor of 12.
For example,
if you have a measurement of 2 feet, you would multiply 2 x 12 to get 24 inches. So, 2 ft = 24 in.
It's important to note that when measuring length, it's important to use the same system of measurement as the requirement, as using the wrong measurements can greatly affect the outcome of the calculation. It's always good to know the conversion factors to make your calculations easier.
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1. The volume of a rectangular box is given by the
expression V = (120 - 6w)w², where w is
measured in inches.
a. What is a reasonable domain for the function
in this situation? Express the domain as an
inequality, in interval notation, and in set
notation.
b. Sketch a graph of the function over the
domain that you found. Include the scale on
each axis.
c. Use a graphing calculator to find the
coordinates of the maximum point of the
function.
d. What is the width of the box, in inches, that
produces the maximum volume?
Answers
Answer:
the answer is d. What is the width of the box, in inches, that
produces the maximum volume?
Step-by-step explanation:
length: 120 - 6w >
James was a visitor on an animal-spotting trip. The
probabilities of a visitor seeing crocodiles and hippos on
the trip are given in the tree diagram below.
Given that James saw exactly one of these types of
animal, what is the probability that he saw a crocodile?
Give your answer as a fraction in its simplest form.
Saw a crocodile
Yes
No
Saw a hippo
5/60
16
Na
79
Yes
No
Yes
N
Answers
Given that James saw exactly one of these types of animal, the probability that he saw a crocodile is given as follows:
1/3.
How to calculate a probability?The parameters that are needed to calculate a probability are listed as follows:
Number of desired outcomes in the context of a problem or experiment.Number of total outcomes in the context of a problem or experiment.Then the probability is calculated as the division of the number of desired outcomes by the number of total outcomes.
The probability of seeing exactly one type of animal is given as follows:
2/5 x 1/6 + 3/5 x 2/9 = 1/15 + 6/45 = 3/45 + 6/45 = 9/45.
The probability of seeing exactly one type of animal and being a crocodile is given as follows:
2/5 x 1/6 = 1/15 = 3/45.
Hence the conditional probability is given as follow:
(3/45)/(9/45) = 3/9 = 1/3.
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is 17/5 rational or irrational
Answers
Answer:
rational
Step-by-step explanation:
Answer:
rational
Step-by-step explanation:
What is a parallel algorithm?
Answers
Answer:
A parallel algorithm is a type of algorithm that is designed to run on multiple processors or processing units simultaneously, in order to solve a problem more efficiently or quickly than a sequential algorithm that runs on a single processor.
which of the following scenarios is consistent with the expectations of the law of large numbers? (a) getting 200 threes after 600 separate rolls of a single die. (b) getting 50 twos after 600 separate rolls of a single die. (d) all of the above. (c) getting 100 sixes after 600 separate rolls of a single die. (e) none of the above.
Answers
The answer is (b) getting 50 twos after 600 separate rolls of a single die. The law of large numbers states that as the sample size increases, the sample mean approaches the population mean.
In other words, the more times you roll the die, the closer you should get to the expected value of each number on the die (which is 1/6 for a fair die). Option (a) of getting 200 threes and option (c) of getting 100 sixes are both too far away from the expected value to be consistent with the law of large numbers. Option (b) of getting 50 twos is closer to the expected value and thus consistent with the law of large numbers.
Therefore, the law of large numbers predicts that over a large number of trials, the frequency of an event should approach its probability of occurrence. In this case, the probability of rolling a two on a fair die is 1/6, so getting 50 twos after 600 rolls is consistent with the law of large numbers.
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