Answers
Related Questions
Match the expressions given in words with their values when d= 3. Help
Answers
Answer:
3
4
0
2
Step-by-step explanation:
3
4
0
2
21) Kinzang is 1.49 m tall. He was 0.53 m at birth. How much did he grow?
Answers
Kinzang grew 0.96 meters.
We have,
To find how much Kinzang grew, we need to subtract his height at birth from his current height:
Height Kinzang grew = Current height - Height at birth
Height Kinzang grew = 1.49 m - 0.53 m = 0.96 m
Therefore,
Kinzang grew 0.96 meters.
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The local gym is charging a flat fee of $20 per month to be a member Each time you go to the gym you pay $2 for a bottled water. What equation would represent how much you pay in total for the month if x is equal to the number of times you go to the gym?
Answers
The equation that would represent how much you pay in total for the month if x is equal to the number of times you go to the gym is:y=20+20x
What is a straight-line equation?
A straight-line equation is made of slope which is the cost per gym visit in the each case and intercept which is the flat fee of $20 which does not depend on the number of times one uses the local gym, in essence, based on the cost per visit of $2, the flat fee of $20 as well as the frequency of gym visit which is x, we can determined the equation representing the how much the individual pays for the number of times they go to the gym
y=a+bx
y=total cost
a=flat fee=20
b=slope=cost per gym visit=2
x=number of times the gym is visited=x
y=20+20x
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Carl recorded the number of customers who visited his new store during the week:
Day Customers
Monday 17
Tuesday 13
Wednesday 14
Thursday 16
He expected to have 15 customers each day. To answer whether the number of customers follows a uniform distribution, a chi-square test for goodness of fit should be performed. (alpha = 0.10)
What is the chi-squared test statistic? Answers are rounded to the nearest hundredth.
Answers
Answer:
The chi - square test can be \(\approx\) 0.667
Step-by-step explanation:
From the given data :
The null hypothesis and the alternative hypothesis can be computed as:
Null hypothesis: The number of customers does follow a uniform distribution
Alternative hypothesis: The number of customers does not follow a uniform distribution
We learnt that: Carl recorded the number of customers who visited his new store during the week:
Day Customers
Monday 17
Tuesday 13
Wednesday 14
Thursday 16
The above given data was the observed value.
However, the question progress by stating that : He expected to have 15 customers each day.
Now; we can have an expected value for each customer as:
Observed Value Expected Value
Day Customers
Monday 17 15
Tuesday 13 15
Wednesday 14 15
Thursday 16 15
The Chi square corresponding to each data can be determined by using the formula:
\(Chi -square = \dfrac{(observed \ value - expected \ value )^2}{expected \ value}\)
For Monday:
\(Chi -square = \dfrac{(17 - 15 )^2}{15}\)
\(Chi -square = \dfrac{(2)^2}{15}\)
\(Chi - square = \dfrac{4}{15}\)
chi - square = 0.2666666667
For Tuesday :
\(Chi -square = \dfrac{(13- 15 )^2}{15}\)
\(Chi -square = \dfrac{(-2)^2}{15}\)
\(Chi - square = \dfrac{4}{15}\)
chi - square = 0.2666666667
For Wednesday :
\(Chi -square = \dfrac{(14- 15 )^2}{15}\)
\(Chi -square = \dfrac{(-1 )^2}{15}\)
\(Chi -square = \dfrac{(1 )}{15}\)
chi - square = 0.06666666667
For Thursday:
\(Chi -square = \dfrac{(16- 15 )^2}{15}\)
\(Chi -square = \dfrac{(1 )^2}{15}\)
\(Chi -square = \dfrac{(1 )}{15}\)
chi - square = 0.06666666667
Observed Value Expected Value chi - square
Day Customers
Monday 17 15 0.2666666667
Tuesday 13 15 0.2666666667
Wednesday 14 15 0.06666666667
Thursday 16 15 0.06666666667
Total : 0.6666666668
The chi - square test can be \(\approx\) 0.667
At level of significance ∝ = 0.10
degree of freedom = n - 1
degree of freedom = 4 - 1
degree of freedom = 3
At ∝ = 0.10 and df = 3
The p - value for the chi - square test statistics is 0.880937
Decision rule: If the p - value is greater than the level of significance , we fail to reject the null hypothesis
Conclusion: Since the p - value is greater than the level of significance , we fail to reject the null hypothesis and conclude that there is insufficient evidence to show that the number of customers does not follows a uniform distribution.
Answer:.67
Step-by-step explanation:
Which may be a benefit of inflation?
O Lower prices
Secured income
O Fewer consumer expenses
O Increased business profits
Answers
What's my answer? A,B,C or D.
Answers
Answer:
It's B I think.
Step-by-step explanation:
If it's wrong, please tell me!
Answer:
the awnser is A hopw this helps
A softball pitcher has a 0.64 probability of throwing a strike for each pitch. If the softball pitcher throws 20 pitches, what is the probability that exactly 13 of them are strikes
Answers
The prοbability that exactly 13 οf the 20 pitches are strikes is apprοximately 0.1835 οr 18.35%.
What is binοmial distributiοn?The binοmial distributiοn is a prοbability distributiοn that mοdels the number οf successes in a fixed number οf independent trials with a cοnstant prοbability οf success.
It is used tο calculate the prοbability οf getting k successes in n trials, where each trial has a prοbability οf p οf success.
The fοrmula fοr the prοbability οf k successes in n trials with prοbability p οf success in each trial is:
\(P(k) = (n, k) \times p^{k} \times (1-p)^{n-k}\)
Here we have
A softball pitcher has a 0.64 probability of throwing a strike for each pitch. The softball pitcher throws 20 pitches,
This problem can be solved using the binomial distribution
The formula for the probability of k successes in n trials with probability p of success in each trial is:
\(P(k) = (n, k) \times p^{k} \times (1-p)^{n-k}\)
On substituting the values, we get:
P(13) = (20, 13) × 0.64¹³ ×(1-0.64)⁽²⁰⁻¹³⁾
= (20! / (13! × 7!)) × 0.64¹³ × 0.36⁷
= 77520 × 0.00000236
= 0.1835 (rounded to four decimal places)
Therefore,
The probability that exactly 13 of the 20 pitches are strikes is approximately 0.1835 or 18.35%.
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Round £168.51 to the nearest pound
Answers
Answer:
£169
Step-by-step explanation:
because the number in the decimal immediately after 8 the integer 168, is up to or more than 5.
The required round of £168.51 to the nearest pound is £169.
Given that,
To round £168.51 to the nearest pound.
The rounding of values is superseding a number with an inexact value that has a more ephemeral, more uncomplicated, or more direct representation.
Here,
£168.51 is given in the question and asked to round is to the nearest pound, since after the decimal the number 51 is closer to the nearest zero i.e. 100,
Implies,
The nearest pound to the £168.51 is £169
Thus, the required round of £168.51 to the nearest pound is £169.
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permieter of 2 rectangles is 54 cm.
work out the area of a square
Answers
The Area of Square is 81 cm².
let the side of the square which is length for both rectangles be a.
let the width of rectangle be x and y.
So, x+ y= a
sum of perimeters= 54
2 (a +x ) + 2 (a+ y) = 54
2a+ 2x + 2a+ 2y = 54
2a + 2a + 2(x+ y) = 54
4a + 2 (a) = 54
4a + 2a = 54
6a = 54
a= 54/6
a= 9
So, area of square
= 9 x 9
= 81 cm²
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I need help with solving residential plots and correlation vs causation how do I solve a liner model from the data ?
Answers
The image shows point that have a value that is close to zero, so they are small values
In the question, they say that those points represent the residual plot, that means that they represent the error of the linear model
The error is very small, close to zero
So the residual plot shows a non-random pattern, becuase all the point are close to zero
And then the date can be represented by a linear model
So the answer for the left box is "non-random"
And for the right box is "linear"
On the left box:..... non-random
On the right box...... linear
please
\(2x {}^{2} + 2y {}^{2} - 6y - 12y = 3 \)
I need help
Answers
![please [tex]2x {}^{2} + 2y {}^{2} - 6y - 12y = 3 [/tex]I need help](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/0X88LdBuMwIAUWxByc8exEH7JSTCTQBj.png)
find angle y If the opposite side is 12 and the adjacent side is 11mm
Answers
Answer:
answer is 47.49 because tan theta is equals to 12 / 11 which is 1.09091.
So tan-¹(1.09091) = 47.49
how do you round 0.313265 to the nearest tenth of a percent
Answers
Answer:
.313265*100 is 31.3265
rounded is 31.3
Step-by-step explanation:
Answer:
Step-by-step explanation:
what is 32.7 + 21.63
Answers
Answer:
54.33
Step-by-step explanation:
Answer:
54.33
Step-by-step explanation:
Addition or a calculwtor can be used
Which of the following equations have the same solution as 3x - 5 = 5x + 11
Answers
Answer:
x = -8 Hope that helps bye!
Step-by-step explanation:
1. Subtract 3x from both side -5=5x+11-3x
2. Simplify 5x+11-3x= 2x+11
3. Subtract 11 from both sides -5-11=2x
4. Simplify -5-11= -16=2x
5. Divide both sides by 2 -16/2=x
4. Simplify 16/2 = -8 = x
5. Switch sides x= -8 would be your answer and if you want to check it just do 3x-5=5x+11 let x=-8 1. 3×-8-5=5×-8+11
2. 3×-8= -24 do -24-5=5×-8+11
3. Simplify 5×-8= -40 do -24-5=-40+11
4. Simplify -24-5= -29 do -29= -40+11=-29
-29=-29 this shows that x= -8 is your answer if you want to see if I'm right.
PLEASE HELP AND SHOW WORK FOR BRAINLIST
2. In the diagram below, trapezoid ABCD, with
bases AB and DC, is inscribed in circle O, with
diameter DC. If mAB = 80, what is mBC?
D
80
B
C
DAR?
Answers
Since trapezoid ABCD is inscribed in circle O, we know that angles A and D are right angles. We also know that the measure of angle ABD is equal to half the measure of arc AC. Since DC is a diameter of the circle, arc AC is a semicircle and thus has a measure of 180 degrees. Therefore, angle ABD has a measure of 90 degrees.
We also know that the sum of the measures of the angles in a trapezoid is equal to 360 degrees. Therefore, we can set up the following equation:
mAB + mBC + mCD + mDA = 360
Substituting the given values, we get:
80 + mBC + 90 + 90 = 360
Simplifying, we get:
mBC = 100
Therefore, mBC is equal to 100 degrees.
A two-child family is selected at random. Let B denote the event that at least one child is a boy, and let D denote the event that
the genders of the two children differ. Find the union of B and D. (1 point)
The union is (bb, gg); the first letter denotes the gender of the firstborn child, and the second letter denotes the gender of the
second child.
The union is (bg. gb); the first letter denotes the gender of the firstborn child, and the second letter denotes the gender of the
second child.
The union is {bb, bg, gb, gg); the first letter denotes the gender of the firstborn child, and the second letter denotes the gender of
the second child.
The union is (bb, bg. gb); the first letter denotes the gender of the firstborn child, and the second letter denotes the gender of the
second child.
Answers
With the help of probability we can say that, DUM={GG,BB,GB,BG).
What is Probability?Probability is the concept that describes the likelihood of an event occurring.
In real life, we frequently have to make predictions about how things will turn out.
We may be aware of the result of an occurrence or not.
When this occurs, we state that there is a possibility that the event will occur.
In general, probability has many excellent applications in games, commerce, and this newly growing area of artificial intelligence
The chance of an event can be calculated using the probability formula by only dividing the favourable number of possibilities by the total number of potential outcomes.
hence, DUM={GG,BB,GB,BG)
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3/1 divided by 3/4 in simplest form
Answers
Answer:
4
Step-by-step explanation:
3/1=3
hence 3/(3/4 )= 3 x4/3=4
Answer:
4
Step-by-step explanation:
keep switch flip
3/1 * 4/3 = 12/3 = 4
dont know how to solve this
Answers
Answer: Neither of them are correct.
Explanation4/x = x/8 and x is about 5.7
Identify the next number in the following sequence
25 49 97 ?
Select only one answer
- 124
- 171
- 139
- 193
Answers
Answer:
the correct answer is 193
Step-by-step explanation:
25×1-0=25
25×2-1=49
49×2-1=97
97×2-1=193
Which of the following represents the series? –13 + (–7) + (–1) + 5 + 11
Answers
Answer:
Adding +6 in turn
Step-by-step explanation:
-13+6=(-7)
(-7)+6=(-1)
(-1)+6=5
5+6=11
11+6=17
17+6=23
23+6=29
29+6=35
........... And so on
if it helped uh please mark me a brainliest :))Find the minimum value of y given that y = 2x^2+ 6x + 2.
Answers
Answer:
-5/2
Step-by-step explanation:
x= -b/2a
x= -6/4= -3/2
y=2×(9/4)+6(-3/2)+2= -5/2
A high school is voting on a new mascot. Lion Eagle Bee Ninth Grade 45% 32% 23% Tenth Grade 36% 40% 24% Eleventh Grade 50% 28% 22% Twelfth Grade 40% 25% 35% Match the two-way table to the segmented bar graph.
Answers
The steps to create a bar graph are explained below.
To match the two-way table to the segmented bar graph, we need to create a segmented bar graph that represents the data in the table. The table shows the percentage of students in each grade who voted for each mascot option.
Here is how we can match the two-way table to the segmented bar graph:
For the Lion mascot option, the segmented bar graph would have the largest segment for 11th grade, followed by 9th grade, 10th grade, and 12th grade.For the Eagle mascot option, the segmented bar graph would have the largest segment for 10th grade, followed by 11th grade, 9th grade, and 12th grade.For the Bee mascot option, the segmented bar graph would have the largest segment for 12th grade, followed by 9th grade, 10th grade, and 11th grade.By creating a segmented bar graph that represents the data in the two-way table, we can visually compare the percentage of students who voted for each mascot option across different grade levels.
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ANSWER QUICK WILL MARK BRAINLIEST
PMI (Private Mortgage Insurance) protects the lender in case the borrower cannot make the loan payments. It is often required
when the amount of the loan is close to the value of the home. PMI typically annually costs about 75% of the entire loan. On a
$300,000 loan what would you be paying per month?
(Be sure to use a $ and 2 decimal places)
Answers
Answer:
the monthly payment is $18,750
Step-by-step explanation:
The computation of the monthly payment is shown below:
= (Loan amount × given percentage) ÷ number of months in a year
= ($300,000 × 75%) ÷ 12 months
= $18,750
Hence, the monthly payment is $18,750
simplify the equation
Answers
Answer:
The correct option is
A.
hope it helps
Answer: Its the first one
Step-by-step explanation:
2³ = 8
(r²)³ = r⁶
8r⁶
3³ = 27
(s³)³ = s⁹
(t²)³ = t⁶
27s⁹t⁶
Hope I helped!
I will give brainliest to whoever gets it right!!
Which fraction is equivalent to -2/3?
2/-3
-3/2
-2/-3
2/3
Answers
Answer:
2/-3 is the answers for the question
Step-by-step explanation:
please give me brainlest to me please
Answer:
A
Step-by-step explanation:
2/-3 = -2/3
we can move signs up and down
Two roots of a 3-degree polynomial equation are 5 and -5. Which of the following cannot be the third root of the equation? 0 -5i -5 5i 5
Answers
Answer:
-5i and 5i cannot be roots of the equation, since they are complex.
Step-by-step explanation:
A 3-degree polynomial equation must have 3 roots, if one of its roots is a complex number, then its conjugate must also be a root of the function. The problem already stated two roots, which are reals, therefore the last root must also be real. Using this line of thought we know that -5i and 5i cannot be roots of the equation, since they're complex.
D. Which transformations (vertical shift, horizontal shift, dilations, and reflections) change the domain of a function.
Support your answers with equations and graphs.
Answers
The transformations that change the domain of a function are given as follows:
Horizontal shift.Dilation.Reflection over the y-axis.What is the domain of a function?The domain of a function is defined as the set containing all the values assumed by the independent variable x of the function, which are also all the input values assumed by the function.
Hence we must look at transformations that change the values of x of the function, which are given as follows:
Horizontal shift, which are f(x + a) and f(x - a).Dilation, which are f(ax).Reflection over the y-axis, which is f(-x).Learn more about domain and range at https://brainly.com/question/26098895
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the student government claims that 70% of all students favor an increase in student fees to buy indoor potted plants for the classrooms. a random sample of 12 students produced 2 in favor of the project.
(a) What is the probability that 2 or fewer in the sample will favor the project, assuming the student government's claim is correct? (Use 3 decimal places.) (b) Do the the data support the student government's claim, or does it seem that the percentage favoring the increase in fees is less than 70%? The data do not give us any indication that the percent favoring the increase in fees differs from 70%. The data seem to indicate that the percent favoring the increase in fees is greater than 70%. The data seem to indicate that the percent favoring the increase in fees is less than 70%. The data seem to indicate that the percent favoring the increase in fees is equal to 70%.
Answers
The probability that 2 or fewer in the sample will favor the project is 4.368 × 10⁻⁶ and Also The data seem to indicate that the percent favoring the increase in fees is less than 70%
According to the question,
It is given that according to the student's government
The probability that number of students in favor of increment in fees : p = 0.70
The probability that number of students against the increment : q = 0.30
Sample Size : n = 12
Number of students follows Binomial distribution
(a) We have to find the probability that 2 or fewer in the sample will favor the project
P( x ≤ 2) = P(0) + P(1) + P(2)
As we know ,
P(x) = ⁿCₓpˣq⁽ⁿ⁻ˣ⁾
=> P( x ≤ 2) = ¹²C₀p⁰q¹² + ¹²C₁p¹q¹¹ + ¹²C₂p²q¹⁰
=> P( x ≤ 2) = 1×(0.30)¹² + 12×(0.70)(0.30)¹¹ + 12×11/2 × (0.70)²(0.30)¹⁰
=> P( x ≤ 2) = (0.30)¹⁰ [ 0.09 + 0.21 + 0.48]
=> P( x ≤ 2) = 5.9×10⁻⁶[0.78]
=> P( x ≤ 2) = 4.368 × 10⁻⁶
Which is very close to zero
(b) The data doesn't support the student government claim.
The data seem to indicate that the percent favoring the increase in fees is less than 70%.
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Select the statement that describes this expression: 8 + one half x (6 – 2) – 1.
Answers
Answer:
B).
Step-by-step explanation:
Add 8 to half the difference of 6 and 2 then subtract 1.
Answer:
I apologize but I haven't worked for an answer. but my mind is, what is the point of this question? everyone is familiar with the "when am I ever going to use this in life and why do I need to learn this?" but this is a whole new level of w t f.