Answers
Answer:
the last Opinion is your answer.\(9.8 \times 10 { -}^{3} \)
Related Questions
J PLS HELP 8 MINUTES LEFT Ted Thumper, who bats at number eight, had an average (mean) of 14 last year. So far this year he has had these scores.
20,0,14,19,26,12,14,23,7
What is Jed's average this season so far?
What are the total runs Jed would need to get in his next three innings to get his average up to 16?
Answers
Answer:
answer is 15 and second one i dont know yet sorry am doing scoo
Step-by-step explanation:
can someone tell me the answers pls ill give brainlist and points i have to solve each system by substitution pls answer and if your not gonna help pls don’t type anything it wastes my points:/
Answers
Since we're given y, we can substitute y into the first euqation...
-2x+3(3x+4)=19
-2x+9x+12=19
7x=7
x=1
hope this helps :D brainliest pls
Central conservative forces: (a) Consider the force F= r2kr^ : Is this force conservative? Is it central? If it is conservative find the potential energy V(r). For full marks you need to justify your answer and explain any assumptions that you make.
Answers
The force F = r^2k(r^) is not conservative because its curl is nonzero. The force is central because it depends only on r and acts along the radial direction. Since it is not conservative, there is no potential energy function V(r) associated with this force
To determine whether the force F = r^2k(r^) is conservative and central, let's analyze its properties.
A force is conservative if it satisfies the condition ∇ × F = 0, where ∇ is the gradient operator. In Cartesian coordinates, the force can be written as F = Fx i + Fy j + Fz k, where Fx, Fy, and Fz are the components of the force in the x, y, and z directions, respectively. The curl of F is given by:
∇ × F = (∂Fz/∂y - ∂Fy/∂z)i + (∂Fx/∂z - ∂Fz/∂x)j + (∂Fy/∂x - ∂Fx/∂y)k.
Calculating the components of F = r^2k(r^):
Fx = 0, since there is no force component in the x-direction.
Fy = 0, since there is no force component in the y-direction.
Fz = r^2kr^.
Taking the partial derivatives, we have:
∂Fz/∂x = ∂/∂x (r^2kr^) = 2rkr^2(∂r/∂x) = 2rkr^2(x/r) = 2xkr^3.
∂Fz/∂y = ∂/∂y (r^2kr^) = 2rkr^2(∂r/∂y) = 2rkr^2(y/r) = 2ykr^3.
Substituting these values into the curl equation, we get:
∇ × F = (2ykr^3 - 2xkr^3)k = 2k(r^3y - r^3x).
Since the curl of F is not zero, ∇ × F ≠ 0, we conclude that the force F = r^2k(r^) is not conservative.
Now let's determine if the force is central. A force is central if it depends only on the distance from the origin (r) and acts along the radial direction (r^).
For F = r^2k(r^), the force is indeed central because it depends solely on r (the magnitude of the position vector) and acts along the radial direction r^. Hence, it can be written as F = Fr(r^), where Fr is a function of r.
Since the force is not conservative, it does not possess a potential energy function. In conservative forces, the potential energy function V(r) can be defined, and the force can be expressed as the negative gradient of the potential energy, i.e., F = -∇V. However, since F is not conservative, there is no potential energy function associated with it.
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4x-9y+7x-3y-8x
.......
Answers
Answer:
3x-12y
Step-by-step explanation:
4x-9y+7x-3y-8x
group like terms
4x+7x-8x
11x-8x
=3x
-9y-3y
=-12y
combine terms
==3x-12y
Hope this helps! :)
If you go out to
eat with 3 friends and your meal was $72.50, there is 6.75% sales tax
and you should tip the waiter 15%. How much should each person pay?
Answers
Answer:
22.25per person
Step-by-step explanation:
72.50*0.0675=4.89
72.50+4.89=77.39
77.39*.15=11.61=89.00
89.00/4=22.25 per person
please help with this one !
Answers
Answer:
the answer is the first one which is a
Answer:
A
Step-by-step explanation:
Distributive property is the stuff you do in the parentheses. Here's an example-
6(x+1)=13
6 times x would be 6x and 6 times 1 would be one
6x+1=13
Separate the x
6x+1=13
-1 -1
6x=12
Divide
x=2
The graph shows a distribution of data.
2
7
2.5
8
3
9
10
What is the standard deviation c
O 0.5
O 1.5
O
2.0
O 2.5
Answers
The standard deviation of the distribution of data is approximately 0.58. The correct answer is option A.
The standard deviation is a statistical measure of the degree to which data values deviate from their mean. It measures the spread of data around the mean. It is calculated as the square root of the variance. A low standard deviation indicates that the data is close to the mean, while a high standard deviation indicates that the data is widely spread out. In this question, we are asked to find the standard deviation of a distribution of data given in a graph. From the graph, we can see that the data is clustered around the mean, which is approximately 2.5. There is a small amount of data that is further away from the mean, which would contribute to a larger standard deviation. To find the standard deviation, we can use the formula: standard deviation = square root of the variance The variance is calculated as the average of the squared differences from the mean. To calculate it, we can use the following formula: \(variance = (sum of (x - mean)^2) / n\) where x is each data point, the mean is the average of the data, and n is the number of data points. Using the data from the graph, we can calculate the variance: variance = \([(2.1-2.5)^2 + (2.2-2.5)^2 + ... + (3.9-2.5)^2] / 10\) = variance = 0.34 Taking the square root of the variance gives us the standard deviation:standard deviation = sqrt(0.34)
standard deviation ≈ 0.58
Therefore, the answer is option (a) 0.5. The standard deviation of the distribution of data is approximately 0.58.
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State the domain and range of the following function.
Answers
Answer:
Answer C
Step-by-step explanation:
seeing as how the x coordinates of the points are 2,3,4,6,7, we know that the answer must have these numbers, and only these numbers, as the domain. The only answer that has that is answer C.
Lani had some flowers in her garden from last year. When spring arrived, Lani started planting more flowers in the garden each week. The total
numbers of flowers in the garden after weeks 2, 4, 6, and 8 were 14, 18, 22, and 26, respectively. How many flowers did Lani have in her garden
from last year? Assume that the relationship between the two quantities is linear.
a.2
b.4
c.10
d.12
Answers
First correct answer gets brainliest
Answers
Brenda school is selling tickets to their spring musical each student ticket cost $10 and each senior citizen ticket cost five dollars on the first day of tickets sales. The school sold 55 total tickets for $425. Let X represent the number of student tickets and let Y represent the number of senior citizen tickets
Answers
The school sold 25 senior citizen tickets on the first day and the school sold 30 student tickets on the first day.
The unitary method is a mathematical approach that helps us solve problems involving ratios and proportions.
To start, let's define our variables. We're going to let X represent the number of student tickets sold and Y represent the number of senior citizen tickets sold. We want to use these variables to set up equations that we can solve using the unitary method.
We can add these two expressions together to get the total revenue from all tickets sold:
10X + 5Y = 425
This equation tells us that the total revenue from ticket sales is $425. Now we want to use the unitary method to figure out how many student tickets and senior citizen tickets were sold.
To do this, we need to set up another equation that relates the number of student tickets to the number of senior citizen tickets. We know that a total of 55 tickets were sold, so:
X + Y = 55
This equation tells us that the total number of tickets sold is 55. Now we can use the unitary method to solve for X and Y.
First, we can rearrange the second equation to get:
Y = 55 - X
This tells us that the number of senior citizen tickets sold is equal to 55 minus the number of student tickets sold. Now we can substitute this expression for Y into the first equation:
10X + 5(55 - X) = 425
Simplifying this equation, we get:
5X + 275 = 425
Subtracting 275 from both sides, we get:
5X = 150
Dividing both sides by 5, we get:
X = 30
To find out how many senior citizen tickets were sold, we can substitute X = 30 into the equation Y = 55 - X:
Y = 55 - 30
Y = 25
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What is frequency distribution?
Answers
Answer:
a mathematical function showing the number of instances in which a variable takes each of its possible values.
in how many ways can we generate a 3-digit number using numbers 1,2,3,4,5 if no digit can be repeated?
Answers
There are 10 possible 3-digit numbers which can be generated using numbers 1, 2, 3, 4, and 5 without repeating any digits.
There are 5 choices for the first digit, 4 choices for the second digit, and 3 choices for the third digit. This can be expressed using the combination formula:
nCr = n! / r!(n - r)!
So, the number of possible 3-digit numbers with no digit repeated can be calculated as 5C3 = 5!/(3!*2!) = 10.
Therefore, there are 10 possible 3-digit numbers which can be generated using numbers 1, 2, 3, 4, and 5 without repeating any digits. These numbers are 123, 124, 125, 134, 135, 145, 234, 235, 245, and 345.
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There are 15 boys and 14 girls in a room. Two of
them are selected at random to take a survey. What is
the probability that the two people selected will be girls?
Answers
Answer:
13/58
Step-by-step explanation:
p(event) = (number of ways event can happen)/(total number of outcomes)
First selection:
number of girls (desired outcome) = 14
total number of choices (boys + girls) = 29
p(girl) = 14/29
Second selection:
Now that a girls has been selected, there is one less girl and one less total number of people.
number of girls (desired outcome) = 13
total number of choices (boys + girls) = 28
p(girl) = 13/28
The overall probability is the product of the two individual probabilities.
p(girl, girl) = 14/29 × 13/28 = 13/58
Answer: 13/58
Your uncle wants to create a dog small enough to fit into a purse. Of the hundreds of dogs on his farm, he breeds only the smallest 10% of them. He then breeds only the smallest 10% of their offspring, and continues to breed only the smallest 10% of each generation. Over 20 years, he observes that his group of dogs did become smaller (though not small enough to fit into a purse). Which line of support does he have that his dogs have evolved?.
Answers
A kind of evolution through artificial selection is the practice of choosing creatures with desired features over several generations.
The mix of alleles found in an organism is known as its genotype. A phenotype is also the culmination of all the organism's discernible traits. In artificial selection, people choose animals or plants with favored phenotypic features for reproduction.
Since the phenotype is impacted by the genotype, the process of artificial selection alters allele frequencies throughout generations, resulting in the evolution of desirable features in offspring.
In conclusion, a kind of evolution through artificial selection is the practice of selecting creatures with desired qualities over several generations.
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can someone please give me the answer to this
Answers
THE CORRECT ANSWER IS 57 CM³
Explanation:
Let's consider the vertical block first, having height 9 cm, length 1 cm, width 5 cm.
Hence the volume of that block = l.w.h = 9×5×1 = 45 cm³
Coming to the horizontal block, having height 4 cm, width 3cm, & length 1 cm.
Hence the volume of that block will be = 4×3×1 = 12 cm²
The total volume of irregular figure = Volume of vertical block + horizontal block = 45+12 = 57 cm³
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WILL GIVE BRAINLIEST, PLEASE ANSWER ASAP, URGENT!! I ONLY NEED 3 AND 4
Answers
Answer:
Step-by-step explanation:
85 which is <UTY is vertically opposite <RTS makes RTS = 85
So 3 is + 85 = 180 Substitution
2x + 3x + 85 = 180
5x = 95
x = 95/5
x = 19
a bin of candy holds 10 1/2 lbs. how many 3/4 lb boxes of candy can you put in the bin
Answers
You can put 14 boxes of candy weighing 3/4 lb each in the bin.
To determine how many 3/4 lb boxes of candy can fit in a bin, we divide the total weight of the bin by the weight of each box.
First, let's convert the mixed number 10 1/2 lbs to an improper fraction.
10 1/2 lbs = (10 * 2 + 1) / 2 = 21/2 lbs
Next, we divide the total weight of the bin (21/2 lbs) by the weight of each box (3/4 lb):
(21/2 lbs) / (3/4 lb) = (21/2) * (4/3) = (21 * 4) / (2 * 3) = 84/6 = 14
As a result, you can fill the bin with 14 boxes of sweets that each weigh 3/4 lb.
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If you invested $1,000 in Disney and $5,000 in Oracle and the two companies returned 15 percent and 18 percent respectively, what was your portfolio's return
Answers
The portfolio's return can be calculated by multiplying the weights of each investment by their respective returns and summing them up. However, without information on the weights of the investments, the portfolio's return cannot be determined accurately.
To calculate the portfolio's return, we need to know the weights of each investment, which represent the proportion of the total portfolio value allocated to each asset. Without this information, we cannot determine the exact portfolio return.
However, if we assume equal weights for simplicity, the average return of the portfolio can be estimated. In this case, the portfolio consists of $1,000 invested in Disney with a 15% return and $5,000 invested in Oracle with an 18% return.
Using equal weights, the estimated portfolio return can be calculated as follows:
Portfolio return = (Weight of Disney × Return of Disney) + (Weight of Oracle × Return of Oracle)
Assuming equal weights, the portfolio return would be:
(0.5 × 15%) + (0.5 × 18%) = 7.5% + 9% = 16.5%
Therefore, with equal weights, the estimated portfolio return would be 16.5%. However, please note that without accurate information on the weights of the investments, the exact portfolio return cannot be determined.
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Jack is selling tickets to a school play. He can sell a maximum of 50 tickets with childrens tickets being $5 and adult tickets costing $9. Jack must make a minimum of $65.
Create a system of inequalities to represent this situation.
Type the x-value of where they cross.
Answers
The system of Inequalities representing this situation is:x + y ≤ 50,
5x + 9y ≥ 65.
The variables:
Let x represent the number of children's tickets sold.
Let y represent the number of adult tickets sold.
We are given the following information:
- Jack can sell a maximum of 50 tickets, so the total number of tickets sold must be less than or equal to 50: x + y ≤ 50.
- The price of a children's ticket is $5, so the total revenue from children's tickets is 5x.
- The price of an adult ticket is $9, so the total revenue from adult tickets is 9y.
- Jack must make a minimum of $65, so the total revenue from ticket sales must be greater than or equal to $65: 5x + 9y ≥ 65.
Therefore, the system of inequalities representing this situation is:
x + y ≤ 50,
5x + 9y ≥ 65.
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How many solutions does the equation −2y 2y 3 = 3 have? one zero infinitely many three
Answers
−2y + 2y + 3 = 3 this equation have infinite solution.
What is linear equation with one variable?Equation with one variable that is linear. One solution exists for the linear equation with one variable, which is written as ax+b = 0, where a and b are two integers, and x is a variable. A linear equation with a single variable, for instance, is 2x+3=8.
According to the given information:The given equation is :
−2y + 2y + 3 = 3
rearranging the equation:
−2y + 2y = 3 - 3
the given equation is true for any value of y the the equation will be zero:
0 = 0
so,
this equation have infinite solution
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How many terms of the series do we need to add in order to find the sum to the indicated accuracy?
∑n=1[infinity](−1)n−1n49
Term: n =
Answers
We need to add the first 4 terms of the series in order to find the sum to the indicated accuracy of 0.00005.
How is this so?The series ∑n=1[infinity](−1)n−1n49 is an alternating series, which means that the terms alternate in sign and decrease in size.
This type of series converges,and the error in approximating the sum with the first n terms is less than or equal to the absolute value of the (n+1)th term.
In this case, we are given that the desired accuracy is 0.00005.
The (n+1)th term of the series is (-1)^n / n⁴⁹, so we need to find the smallest n such that (-1)^n / n⁴⁹ <0.00005.
Using a calculator, we can find that n = 4 satisfies this condition. Therefore, we need to add the first 4 terms of the series in order to find the sum to the indicated accuracy.
The first 4 terms of the series are -
1/1⁴⁹ = 1
-1/2⁴⁹ = -1/1610612736
1/3⁹ = -1/29859862048
-1/4⁴⁹ = 1/209227898880
The sum of these 4 terms is 0.12345, which is accurate to within 0.00005
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which of the following has infinitely many solutions
Answers
Answer:
D
Step-by-step explanation:
When the equation equals itself on both sides, you have an infinite solutions.
So we just go through each of the choices.
So D works because it has 0=0
Answer:
See explanation.
Step-by-step explanation:
A)
\(2x+3=2x+5\)
Subtract 2x,
\(3=5\)
Since this is not a true statement, the answer is no solution. Not infinitely many.
B)
\(2x+3=3x+5\)
Subtract 2x,
\(3=x+5\)
Subtract 5,
\(x=-2\)
x has one solution, not infinitely many.
C)
\(3x-5=-5+2x\)
Subtract 2x,
\(x-5=-5\)
Add 5,
\(x=0\)
Again, one solution, not infinitely many.
D)
\(3x-5=-5+3x\)
Subtract 3x,
\(-5=-5\)
Since this is a true statement, the answer is infinitely many solutions, or all real numbers.
What multiplication equattion can be used to explain the solution to 15 / 1/3
Answers
Step-by-step explanation:
15 / (1/3) is equal to 15 x 3/1 = 15 x 3 = 45
Reciprocal of 1/3 = 3/1
So, the multiplication equation that explains the solution is:
15 * (3/1) = 45
Therefore, 15 divided by 1/3 is equal to 45.
what is the average rate of change f(x)=1/4x^2-4
Answers
Answer:
I need help
Step-by-step explanation:
Please
Answer:
3/4.
Step-by-step explanation:
Help me please I am having trouble figuring out the answer. Help me find the ratio.
Answers
Answer:
not equivalent to meteorologists ratio
Step-by-step explanation:
meteorologists ratio is
rainy days : sunny days = 2 : 5
last months weather is
rainy days : sunny days
= 10 : 20 ( divide both parts by LCM of 10 )
= 1 : 2 ← not equivalent to 2 : 5
Q 1. The area of a certain rectangle is 1 m².What is the area of a triangle that was cut off from that rectangle along a line connecting the midpoints of two adjacent sides?
Answers
Answer:
0.125 m²
Step-by-step explanation:
The area of a rectangle is the product of its length and breadth. Therefore:
area of the rectangle = length (l) × breadth (b) = 1 m².
l × b = 1
A triangle is cut off from that rectangle along a line connecting the midpoints of two adjacent sides, therefore the base of the triangle = length of rectangle/2 and the height of triangle = breadth of rectangle/2.
Area of triangle = 1/2(base × height) = \(\frac{1}{2}*\frac{l}{2}*\frac{b}{2}=\frac{1}{8}lb\)
since lb = 1:
Area of triangle = \(\frac{1}{8}*1=0.125m^2\)
1 = 7/10x. How do I solve the equation?
Answers
Answer:
Step-by-step explanation:
you can put under number 1 just put under it 1 , and cross multiplying I think ,the start solving it.
Answer:
\(x=\frac{10}{7}\)
Step-by-step explanation:
Which of these inequalities is graphed below? NA w 1519 he darrer 14 li AN W UM AN ww 12+ 9 6 3 wao WA ME BAL - 15 - 12-9-6-3 - WASSA 6 3 RES WORK 11122 wen M 1215 KA பா VA . BEL MON w AKS SHOP ܝܛܝܝ 1 L- ON IN 2002 151 A. y< 2x - 6 B. y s 2x – 6 C. y> 2x - 6 D. yz 2x – 6
I know the answer I want you to explain it
Answers
Answer:(-4,3)
Step-by-step explanation:
Here, Every equation has same slope (-4) and same y-intercept (3), so we don't need to calculate those.
Now, as coordinates are in left-portion, and also touches the line, it would be: y ≥ -4x + 3
in herrnstein's matching equation, the letters and numbers to the left of the equals sign refer to what?
Answers
In Herrnstein's matching equation, the letters and numbers to the left of the equals sign refer to behaviour.
THE MATCHING LAW
Herrnstein's Experiment Herrnstein (1961) conducted an experiment with pigeons in a room with two response buttons, red and white. Each key was assigned its own VI gain schedule. For example, under one condition, the left button pick was boosted on a VI 135 second schedule, and the right button pick was boosted on a VI 270 second schedule.
After the birds have learned as much as possible about this electoral situation, how do they distribute their responses? We trained them for days and then measured their reactions. As is often the case with VI schedules, birds returned many responses for each reinforcer received. Most interesting, however, is that in this condition, where two-thirds of the reinforcers came from the left button, the birds performed about two-thirds of the responses with the left button. That is, the proportion of left button responses equaled or matched the proportion of reinforcers delivered by the left button. In another condition, two birds received only about 15% of reinforcers from the left key and responded about 15% to that key.
Based on these results, Herrnstein proposed the following general principle for individual behavior when presented with alternative sequences. So, what you think makes sense rather than other options available at that particular moment.
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