Answer:
4,99%
Step-by-step explanation:
By Themba you write 28/100 because a percentage means 100 ,you 100 by 28 and then your common fraction answer will be 7/25 in a decimal way it is 0,28 .
Jamal is 0,3 which is 0,3 means 3/10 and Alison 1/8 and the answer for Alison is 0,125 or in a common fraction way it is 125/10.
And then you add all the answers and you get 141/200 .
And then 500-7/25-3/10-0,125 and then you get 499,295, and 499,295÷100 =4,99 which is 4,99%.
I hope this works.
Solve the inequality X+1>4. Then graph the solutions,
What are the solutions?
Answer:
x>3
Step-by-step explanation:
Answer:
C. x>3 is the answer I believe
Juan's car used 12 gallons of gasoline to travel 456 miles. How many miles do I travel for each gallon of gasoline?
Answer:
38 miles per gallon
Step-by-step explanation:
465 miles / 12 gallons
38 miles / gallon
What is 4.6948 in : a. standard form b. corrected to two significant figures c.corrected to two decimal places
A. Standard form because there is only one digit in front of the decimal point.
find the next three terms in each sequence. then, write the rule for finding the nth terms. 1. 1, 4, 7, 10
What is the answer
How do you solve it
Answer:
-50y+(-80)
Step-by-step explanation:
Factor completely
12n^3 + 15n^2 + 4n + 5
Please help I need it by today...
also sorry...
Answer:
Step-by-step explanation:
A \greenD{3\,\text{cm} \times 10\,\text{cm}}3cm×10cmstart color #1fab54, 3, start text, c, m, end text, times, 10, start text, c, m, end text, end color #1fab54 rectangle sits inside a circle with radius of \blueD{12\,\text{cm}}12cmstart color #11accd, 12, start text, c, m, end text, end color #11accd.
What is the area of the shaded region?
Round your final answer to the nearest hundredth.
What method can be used to prove the triangles are congruent?
Options: AAS, ASA, SSS, SAS, HL or Not Possible
Answer:
An method would be ASA
Step-by-step explanation:
What is the constant of proportionality (unit rate) in the equation
y
=
4.75
x
y=4.75x?
Answer:
y=4x=0
Step-by-step explanation:
0.75x=4.75x y = 4
0.75x=4.75x
62% of owned dogs in the United States are spayed or neutered. Round your answers to four decimal places. If 48 owned dogs are randomly selected, find the probability that
a. Exactly 30 of them are spayed or neutered.
b. At most 33 of them are spayed or neutered.
c. At least 31 of them are spayed or neutered.
d. Between 24 and 30 (including 24 and 30) of them are spayed or neutered.
Answer:
a) 0.1180 = 11.80% probability that exactly 30 of them are spayed or neutered.
b) 0.8665 = 86.65% probability that at most 33 of them are spayed or neutered.
c) 0.4129 = 41.29% probability that at least 31 of them are spayed or neutered.
d) 0.5557 = 55.57% probability that between 24 and 30 of them are spayed or neutered.
Step-by-step explanation:
To solve this question, we use the binomial probability distribution, and also it's approximation to the normal distribution.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
The expected value of the binomial distribution is:
[tex]E(X) = np[/tex]
The standard deviation of the binomial distribution is:
[tex]\sqrt{V(X)} = \sqrt{np(1-p)}[/tex]
Normal probability distribution
Problems of normally distributed distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
When we are approximating a binomial distribution to a normal one, we have that [tex]\mu = E(X)[/tex], [tex]\sigma = \sqrt{V(X)}[/tex].
62% of owned dogs in the United States are spayed or neutered.
This means that [tex]p = 0.62[/tex]
48 owned dogs are randomly selected
This means that [tex]n = 48[/tex]
Mean and standard deviation, for the approximation:
[tex]\mu = E(x) = np = 48*0.62 = 29.76[/tex]
[tex]\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{48*0.62*0.38} = 3.36[/tex]
a. Exactly 30 of them are spayed or neutered.
This is P(X = 30), which is not necessary the use of the approximation.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 30) = C_{48,30}.(0.62)^{30}.(0.38)^{18} = 0.1180[/tex]
0.1180 = 11.80% probability that exactly 30 of them are spayed or neutered.
b. At most 33 of them are spayed or neutered.
Now we use the approximation. This is, using continuity correction, [tex]P(X \leq 33 + 0.5) = P(X \leq 33.5)[/tex], which is the pvalue of Z when X = 33.5. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{33.5 - 29.76}{3.36}[/tex]
[tex]Z = 1.11[/tex]
[tex]Z = 1.11[/tex] has a pvalue of 0.8665
0.8665 = 86.65% probability that at most 33 of them are spayed or neutered.
c. At least 31 of them are spayed or neutered.
Using continuity correction, this is [tex]P(X \geq 31 - 0.5) = P(X \geq 30.5)[/tex], which is 1 subtracted by the pvalue of Z when X = 30.5. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{30.5 - 29.76}{3.36}[/tex]
[tex]Z = 0.22[/tex]
[tex]Z = 0.22[/tex] has a pvalue of 0.5871
1 - 0.5871 = 0.4129
0.4129 = 41.29% probability that at least 31 of them are spayed or neutered.
d. Between 24 and 30 (including 24 and 30) of them are spayed or neutered.
This is, using continuity correction, [tex]P(24 - 0.5 \leq X \leq 30 + 0.5) = P(23.5 \leq X \leq 30.5)[/tex], which is the pvalue of Z when X = 30.5 subtracted by the pvalue of Z when X = 23.5.
X = 30.5
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{30.5 - 29.76}{3.36}[/tex]
[tex]Z = 0.22[/tex]
[tex]Z = 0.22[/tex] has a pvalue of 0.5871
X = 23.5
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{23.5 - 29.76}{3.36}[/tex]
[tex]Z = -1.86[/tex]
[tex]Z = -1.86[/tex] has a pvalue of 0.0314
0.5871 - 0.0314 = 0.5557
0.5557 = 55.57% probability that between 24 and 30 of them are spayed or neutered.
PLEASE I NEED HELP ASAP
Find the standard deviation of the given data rounded to the nearest hundredth. 5.6, 5.2, 4.6, 4.9, 5.7, 6.4
Answer:
Standard deviation = 0.59
Step-by-step explanation:
Given data → 5.6, 5.2, 4.6, 4.9, 5.7, 6.4
Mean of the given data = [tex]\frac{5.6+5.2+4.6+4.9+5.7+6.4}{6}[/tex]
= 5.4
Data (x) (x - mean) (x - mean)²
5.6 5.6 - 5.4 = 0.2 (0.2)² = 0.04
5.2 5.2 - 5.4 = -0.2 (-0.2)² = 0.04
4.6 4.6 - 5.4 = -0.8 (-0.8)² = 0.64
4.9 4.9 - 5.4 = -0.5 (-0.5)² = 0.25
5.7 5.7 - 5.4 = -0.3 (-0.3)² = 0.09
6.4 6.4 - 5.4 = 1 (1)² = 1
N = 6 [tex]\sum (x-mean)^2[/tex] = 2.06
Since, Standard deviation = [tex]\sqrt{\frac{\sum (x-mean)^2}{N}}[/tex]
= [tex]\sqrt{\frac{2.06}{6} }[/tex]
= 0.5859
≈ 0.59
Identify whether the statement describes inferential statistics or descriptive statistics a) A diet high in fruits and vegetables will lower blood pressure (Source: Institute of Medicine). [ Select ] b) The national average annual medicine expenditure per person is $1052 (Source: The Greensburg Tribune Review). [ Select ] c) There is a relationship between smoking cigarettes and getting emphysema. [ Select ]
Which line coincides with the line 2y + 3x = 4?
Answer:
4
Step-by-step explanation:
We are formulating a 95% confidence interval for the population proportion. We have taken a random sample of 100 observations and observed 10 instances of the characteristic in question. What would be the lower interval limit for our 95% confidence interval? (NOTE: Round your estimated standard error to 3 decimal places. Round your final answer to 4 decimal places)
Answer:
The lower interval limit for our 95% confidence interval is of 0.0412.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
We have taken a random sample of 100 observations and observed 10 instances of the characteristic in question.
This means that [tex]n = 100, \pi = \frac{10}{100} = 0.1[/tex]
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.1 - 1.96\sqrt{\frac{0.1*0.9}{100}} = 0.0412[/tex]
The lower interval limit for our 95% confidence interval is of 0.0412.
I need help with this.
Y=6x -7
What is an equation of the line that passes through the point (4,-1) and has a slope of -2?
Answer:
Option C, [tex]y = -2x + 7[/tex]
Step-by-step explanation:
1) Slope-intercept format is represented by the formula [tex]y = mx + b[/tex]. By looking at the options, we can see that all of them follow this format.
So, first, we can identify which equations have a slope of -2 to narrow down our options. In slope-intercept form, the coefficient of the x-term, or [tex]m[/tex], represents the slope. So, this narrows the answer down to options b and c because they are the only ones that have [tex]m[/tex] as -2.
2) Next, in order to find which equation is the right answer, we can substitute the x and y values of the given point (4, -1) into both equations, then simplify. Whichever equation results in a true statement must be the answer. Let's try option c first. Substitute 4 for x and -1 for y:
[tex]-1=4(-2)+7\\-1 = -8+7\\-1=-1[/tex]
-1 does equal -1, so this statement is true. Thus, option c must be the answer.
The equation of the straight line will be -
y = -2x + 7
What is the general equation of a Straight line?
The general equation of a straight line is -
[y] = [m]x + [c]
where -
[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.
We have an equation of the line that passes through the point (4,-1) and has a slope of -2.
Assume the equation of the line to be -
y = -2x + c
The line passes through the point (4,-1), so we can write -
-1 = -2 x 4 + c
-1 = -8 + c
c = -1 + 8
c = 7
Therefore, the equation of the straight line will be -
y = -2x + 7
To solve more questions on straight lines, visit the link below-
brainly.com/question/20400984
#SPJ2
They are nine red and six Green marbles in a bag Reach in the bag and randomly takes out one mobile what is the probability of the child get an a green marble
Answer:
[tex]P(Green) = \frac{6}{15}[/tex]
Step-by-step explanation:
Given
[tex]Red = 9[/tex]
[tex]Green = 6[/tex]
Required
The probability of selecting green marble
This is calculated as:
[tex]P(Green) = \frac{Green}{Green + Red}[/tex]
[tex]P(Green) = \frac{6}{9+6}[/tex]
[tex]P(Green) = \frac{6}{15}[/tex]
Solve for x
Thank you and mark only 1 of them as the answer
Answer:
D, x = 16
Step-by-step explanation:
-12 = (-3/4) * x
Divide both sides by -3/4.
x = 16
I hope this helps! Feel free to ask any questions!
Relaciona las fracciones inpropias con su número entero o mixto equivalente
Cuales son las fracciones impropias? Si nos demuestras, te podemos ayudar.
what is the answer in multiplying the first operation in 3+(8×2)÷1?
a.3
b.4
c.9
d.16
Answer:
d.16
Step-by-step explanation:
(2*8)=16
Use Pemdas;
Parenthesis
Exponents
Multiplication
Division
addison
Subtraction
X + (x+1) + (x+2) = -21
Answer:
x= - 8
Step-by-step explanation: Are you solving for X if so here is the answer
What is the product of StartFraction 5 Over 11 EndFraction and Three-fourths?
StartFraction 8 Over 44 EndFraction
StartFraction 15 Over 44 EndFraction
StartFraction 8 Over 15 EndFraction
StartFraction 20 Over 33 EndFraction
Answer:
5/11 x 3/4 is 15/44
Step-by-step explanation:
You're welcome :)
Answer:
B
Step-by-step explanation:
make x the subject of r = √x - 5
Answer:
x=(-r-5)²
Step-by-step explanation:
please help me solve this problem!!
Answer:
here's the link to the answer
Step-by-step explanation:
WWW.math.com/int.etg
Andrew bought 3 boxes of granlla bars. There are 13 granola bars in each box. choose the expression that shows how many granola bars Andrew brought.
13+b
13b
b÷13
13÷b
Answer:
13b
Step-by-step explanation:
Answer:
The correct Answer is B: 13B
Step-by-step explanation:
Have A Nice Day.
HELP WILL MAKE BRAINLIST
Find the unknown measure ABC
Answer:
21
Step-by-step explanation:
The sale at Publix states that you'll get a 22% discount when you buy a cooking pot for $25. How much did you save?
Answer:
im think it would be $5.50
Lauren goes to the furniture store and purchases some furniture for a total of $70. She purchases a table for $44 and 2 chairs. Each of the chairs costs the same price. Choose which equation will
determine the price of one chair.
A.44 + x = 70
B. 44 + 2x70
C. 70 + 44 = 2x
D.70.44 = x
Answe
Step-by-step explanation:
https://brainly.com/question/22473360?answering=true&answeringSource=feedPublic%2FhomePage%2F1
Which of the following will equal to a product of 8/10?
Answer:
i think 80
Step-by-step explanation:
6. What is the first step when looking at a data set?
Un a) Find the mean
b) Sort the data into categories
Find the range
d) Put the data in ascending order
Answer:
put the data in ascending order
not sure if it's correct