Answer:sqrt 38
Step-by-step explanation:32+8-2 is 38
The mean number of pets owned by the population of students at a large high school is 3.2 pets per student with a standard deviation of 1.7 pets. A random sample of 16 students will be selected and the mean number of pets for the sample will be calculated.
What is the mean of the sampling distribution of the sample mean for samples of size 16 ?
a. 1.7
b. 3.2
c. 3.216√ (The fraction 3. 2 over the square root of 16)
d. 1.716√( The fraction 1. 7 over the square root of 16)
The sampling distribution of the sample mean for samples of size 16 is made up of V3.2 pets, which is the same as the average number of pets owned by the population of high school students.
We use sampling distribution because...
The sampling distribution is the probability distribution of a statistic obtained from a larger sample size drawn from a particular population. The sampling distribution of a particular population is the frequency distribution of a set of possible outcomes for a population statistic.The sampling distribution is the probability distribution of a statistic that is created by drawing numerous samples from a particular population. Researchers use sample distributions to simplify the statistical inference process.A large high school's student population has an average of 3.2 pets per student, with a standard deviation of 1.7 pets. A random sample of 16 students will be selected, and the mean number of pets for the sample will be calculated in order to better understand this population.This will give us the sample mean for samples of size 16 and the mean of the sampling distribution.To determine this, we must first determine the standard error of the mean, which is the sample mean's standard deviation. This is calculated by multiplying the sample size (16) by the square root ofthe population standard deviation (1.7 pets), yielding a standard error ofthe mean.Learn more about Sampling distribution refer to :
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What type of angle is 360 degrees?.
It is called a "congruent" angle.
A full rotation, or a complete revolution, is 360 degrees. Therefore, an angle of 360 degrees is called a "full rotation" or a "complete revolution." It is also sometimes called a "congruent" angle.
A full rotation is known as a circle. A circle is a round-shaped figure that has no corners or edges.
In geometry, a circle can be defined as a closed, two-dimensional curved shape.
The entire circle completes a total of 360 degrees as it completes one rotation or what we call a complete revolution.
A circle is a congruent angle.
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What is an algebraic expression with more than 3 terms?.
An algebraic expression with more than 03 terms is known as Multinomial.
Multinomial Distribution:
In probability theory, the multinomial distribution is a generalization of the binomial distribution. For example, model the probability of counting on each side of a k-sided die n tosses. For n independent trials, each succeeds in exactly one of the k categories, and each category has a certain fixed probability of success. A multinomial distribution gives the probability for each particular combination of numbers of successes in different categories.
If k is 2 and n is 1, the multinomial distribution is Bernoulli. If k is 2 and n is greater than 1, the distribution is binomial. If k is greater than 2 and n is 1, the distribution is categorical. The term "multinoulli" is sometimes used for categorical distributions to emphasize this four-way relationship (hence n determines the prefix and k determines the suffix).
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Can some help please?
Find the missing side length.
Answer:
8
Step-by-step explanation:
the side labeled 12 is equal to the sum of both of the sides its parallel to which is 4 and the missing number. Since 4+?=12 that must mean 12-4=? and 12-4=8
he weight of an organ in adult males has a bell-shaped distribution with a mean of 310 grams and a standard deviation of 35 grams. Use the empirical rule to determine the following. (a) About 99.7% of organs will be between what weights? (b) What percentage of organs weighs between 240 grams and 380 grams? (c) What percentage of organs weighs less than 240 grams or more than 380 grams? (d) What percentage of organs weighs between 240 grams and 415 grams?
a) About 99.7% of organs will be between 205 grams and 415 grams.
b) The percentage of organs weighing between 240 grams and 380 grams is of 95%.
c) The percentage of organs less than 240 grams or more than 380 grams is of 5%.
d) The percentage between 240 grams and 415 grams is of: 97.35%.
What is defined by the Empirical Rule?These approximate percentages are defined by the Empirical Rule, for a normally distributed variable:
68% of the measures within one standard deviation of the mean.95% of the measures within two standard deviation of the mean.99.7% of the measures within three standard deviation of the mean.The first three questions are quite straight forward, while for the fourth we consider the symmetry of the normal distribution, as follows:
95% of 50% of the measures are between 240 grams and 310 grams.99.7% of 50% of the measures are between 310 grams and 415 grams.Hence the total percentage is of:
0.95 x 50 + 0.997 x 50 = 97.35%.
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What is distributive property of equality?.
The distributive property of equality states that the product of an expression and a sum is equal to the sum of the products of the expression and each term in the sum.
Distributive Property of equality : Distribution in mathematics means multiplying an element by two or more additive elements in parentheses.
Multiplying the set by the sum of two terms is the same as adding the products of the original set and each term. In other words, multiplying a quantity by the sum of two or more terms is the same as adding the product of original quantity and each term. A simpler way of expressing this is that the equality holds after the distribution of the terms. Let a, b, and c be real numbers. Then: a(b + c) = ab + ac. A more general formulation is to let be natural numbers and a, b₁, b₂, b₃,---, bₙ be real numbers. Then, a( b₁+b₂+ b₃ +---+ bₙ) = ab₁ + ab₂ + ab₃ + ----+bₙ.
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Classify this triangle by its sides and angles.
A.) acute and isosceles, but not equilateral
B.) obtuse and isosceles, but not equilateral
C.) obtuse and equilateral
D.) acute and equilateral
correct answer must be (a) acute and Isosceles but not equilateral because triangle has two equal side and all angle is less than right angle 90°
answer - (A)
Help me in question b
An inequality that shows how much faster Elanor can drive without going over the speed limit is 43.5 + s ≤ 55.
Elanor can increase her speed by 2.
How to write, solve, and graph the required inequality?In order to write and solve an inequality that represents how much faster Elanor can drive without going over the speed limit, we would take note of the following important information;
The maximum speed limit is equal to 55.Elanor's speed is equal to 43.5.Let the variable s represent the safe speed.Now, we can write an inequality that represents the value of s for which the speed of Elanor is still safe as follows;
43.5 + s ≤ 55
By subtracting 43.5 from both sides of the inequality, we have the following:
43.5 - 43.5 + s ≤ 55 - 43.5
s ≤ 11.5
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At the grocery tore 4 pint of ice cream cot $10. 36. How much would 20 pint of ice cream cot?
Answer:$51.08
Step-by-step explanation:
Part A Determine the magnitude of the resultant force. Express your answer to three significant figures and include the appropriate units. OCH Å ? O Units Fr = Value Submit Request Answer Part B Determine the direction of the resultant force, measured counterclockwise from the positive axis. Express your answer using three significant figures. IVO A ¢ vec ROO? Submit Request Answer Provide Feedback
The angles from an isosceles triangle are simple to calculate. But in order to strengthen the customary methodical approach to vector addition, we note that the angle [tex]$\overrightarrow{\mathrm{b}}$[/tex] makes with the [tex]$+\mathrm{x}$[/tex] axis is
[tex]$30^{\circ}+105^{\circ}=135^{\circ}$[/tex]
What is resultant force?The difference between the forces exerted on an item when a system of forces is at work is known as the resultant force. For instance, a force of 3 N to the left and 10 N to the right results in a force of 7 N to the right. If all of the forces are acting in the same direction, then all of the forces will be acting in the same direction. The three forces that are operating on a body in the same direction are represented by the letters F (1), F (2), and F (3) in the formula above. F(R) = [(F (1) ^2+F (2) ^2)] ^ 1/2.The combined force that two or more forces exert on an item can be calculated by adding up the component forces.It should be noted that using the cosine law for general triangles is an effective technique to solve this vector addition problem (also because
[tex]$\vec{a}[/tex], [tex]\vec{b}[/tex] and [tex]$\vec{r}$[/tex] The angles from an isosceles triangle are simple to calculate. But in order to strengthen the customary methodical approach to vector addition, we note that the angle [tex]$\overrightarrow{\mathrm{b}}$[/tex] makes with the [tex]$+\mathrm{x}$[/tex] axis is
[tex]$30^{\circ}+105^{\circ}=135^{\circ}$[/tex]
(a) The x component of
[tex]$\overrightarrow{\mathrm{r}_{\mathrm{x}}}=(10.0 \mathrm{~m}) \cos 30^{\circ}+(10.0 \mathrm{~m}) \cos 135^{\circ}=1.59 \mathrm{~m}$[/tex]
(b) the y component of
[tex]$\vec{r}$ is $r_y=(10.0 \mathrm{~m}) \sin 30^{\circ}+(10.0 \mathrm{~m}) \sin 135^{\circ}=12.1 \mathrm{~m}$[/tex].
(c) the magnitude of
[tex]\vec{r}$ is $r=|\vec{r}|=\sqrt{(1.59 \mathrm{~m})^2+(12.1 \mathrm{~m})^2}=12.2 \mathrm{~m}[/tex]
(d) The angle between
[tex]\overrightarrow{\mathrm{r}}$ and the $+\mathrm{x}$ direction is $\tan ^{-1}[(12.1 \mathrm{~m}) /(1.59 \mathrm{~m})]=82.5^{\circ}$[/tex]
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M) a car is travelling at 29 mph. if the tires have a diameter of 25 inches, how fast are the cars tires turning? express answer in revolutions per minute
Answer:
To calculate the speed of the car's tires turning, you need to first calculate the circumference of the tire. If the tire has a 25 inch diameter, multiply 25 by 3.1416 to find the tire circumference, which is 78.54 inches. Now, divide 63,360 inches per mile by the tire circumference (78.54) to find the revolutions per mile, which is 803.6. Finally, multiply 803.6 by 29 (the speed of the car in mph) to get the revolutions per minute, which is 23,253.6. Therefore, the car's tires are turning at a rate of 23,253.6 revolutions per minute.
Which is the correct graph for 3y=2x−3
Answer:
D or the last graph. (I attached it)
Step-by-step explanation:
Rewrite in slope-intercept form:
[tex]y = \frac{2}{3}x - 1[/tex]
Using the slope-intercept form, the slope is [tex]\frac{2}{3}[/tex] or [tex]m = \frac{2}{3}[/tex].
Start on the graph by graphing (0, -1), then graph your slope. Up 2, over 3 & repeat!
Can someone please help me with this math problem? The math problem is listed in the picture, Thanks!
I can only use numbers, infinity symbols, etc.
You have to consider the following relation.
Answer:
Domain:
[tex] - \infty < x < \infty [/tex]
Range:
[tex] - 1 \le \: y < \infty [/tex]
Step-by-step explanation:
Domain:The Domain of a function is x values which are included in the graph. Sometimes x values will not be included because they cannot be defined at that point, but in this case the graph indicates that the graph continues to the right and left with no indication that there is an asymptote or it is undefined beyond the graph so we can assume it's defined for all real numbers. We can represent this in interval notation as:
[tex] - \infty < x < \infty [/tex]
Since if you plug in any real number, this inequality should be true.
Range:The range of a function is defined as y values which are on the graph, this is restricted when certain y values are not on the graph... but we can usually tell because functions will have a minimum/maximum. By looking at the graph it appears to reach a minimum at y = -1 and then on the right and left side is increasing, never going below this value, so the range can be defined as:
[tex] - 1 \le y < \infty [/tex]
Since the y values vary between -1 (including -1) and infinity... well that really just means there's no upper bound and it just keeps increasing and increasing.
How to multiply 3 digit numbers by 2 digit numbers without regrouping?.
Multiply the number in the one's place, Multiply the number in the ten's place and multiply the one's and ten's place with the hundred place number, then add them up.
Follow along with example 343 × 32:
Place one number above the other so that the ones' place digits and tens' place digits are lined up. Mark a line just below the bottom number.
3 4 3
×3 2
_______
Multiply the ones' place digits (2 × 3 = 6), one's place of the second number by the ten's place of the first number (2 × 4 = 8), and one's place of the second number by the hundred place of the first number (2 × 3 = 6). Place the 6 below the line in the ones' place column, 8 below the line in the tens' place column and 6 below the line in the hundred place column.
3 4 3
×3 2
________
6 8 6
Multiply the digit in the tens' place column (3) by the digit in the ones' place of the first number (3). The result is 3 × 3 = 9; multiply the digit in the tens' place column (3) by the digit in the tens' place of the first number (4). The outcome is 3 × 4 = 12, and multiply the digit in the tens' place column (3) by the digit in the hundred place of the first number (3). The outcome is 3 × 3 = 9. Now add the numbers and place the answer below the line.
3 4 3
×3 2
__________
6 8 6
10 2 9×
__________
10 976
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What is the value of the digit 3 in 17039 write in words
The digit 3 in the number 17039 represents the value of 3 in the tens place. The place value system is a way to understand the value of each digit in a number. In this case, each digit in the number 17039 has a specific place value, starting from the rightmost digit, which is the ones place, then the tens place, followed by the hundreds place and so on. In the number 17039, the digit 3 is located in the tens place which represent 3 x 10 = 30. To understand the value of any digit in a number, you can multiply the digit by its corresponding place value.
Answer:
The digit 3 in the number 17039 represents the value of 3 in the tens place
Step-by-step explanation:
What value makes the expressions equivalent? 8(-4x + 3) and - 14x + _ +(-18x）
The value that will 8(-4x+3) equivalent to -14x+ _+(18x) is 24
What are equivalent expressions?Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value(s) for the variable(s).
for example 2+ 3 and 4 + 1 are equivalent. The both have a value of 5.
Similarly;
8(-4x+3) , when the parentheses is opened, = -32x +24
Also
-14x -18x = -32x
Therefore the value of x that will make the two equation equivalent is 24
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the image of the point (-9,9) under a translation is (-5,13). find the coordinates of the image of the point (-6,-7) under the same translation
Answer in the photo!!
hope it's right
7. Choose a method to solve the following system of equations. Then write 2-3 sentences
to why the system is set up for that method.
y = -2x + 6
y = 5x - 8
Type your 2-3 sentences in
text box below.
On solving the linear equations y = -2x + 6 and y = 5x - 8, the value for x is x = 2 and the value of y is y = 2.
What is a linear equation?
A linear equation is one that has a degree of 1 as its maximum value. No variable in a linear equation, thus, has an exponent greater than 1. A linear equation's graph will always be a straight line.
The first linear equation is - y = -2x + 6
The second linear equation is - y = 5x - 8
Subtracting equation (1) from (2) -
y - y = 5x - 8 - (-2x + 6)
0 = 5x - 8 + 2x - 6
0 = 7x - 14
7x = 14
x = 14/7
x = 2
Substituting the value of y in equation (1) -
y = -2x + 6
y = -2(2) + 6
y = -4 + 6
y = 2
The subtraction and substitution method is chosen to solve the system of linear equations. The linear equations are first made equal in order to find the desired variable. Then subtraction is done to find the value of one variable. Next, the found value is substituted into the equation to find the unknown variable. This method is easy to understand and gives accurate value.
Therefore, the value of x and y is 2 and 2 respectively.
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A frame designer is making a triangular frame. She has two sides of length 18 inches and 27 inches. What are the possible lengths for the third side?.
The possible lengths( in whole elevation) for the third side is
9 elevation< x< 45 elevation, i.e in between 9 and 45 elevation.
For the below question, we've a rule from the properties of triangle, the sum of the length of any two sides of the triangle must be lesser than the length of the third side.
Hence
She has two sides of length 18 elevation and 27 elevation
Let the third side = x
Hence
a) 18 27> x
45> x
b) 18 x> 27
x> 27- 18
x> 9
thus, the possible lengths( in whole elevation) for the third side is
elevation< x< 45 elevation
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what does a square have in common with a rectangle
Answer:
They both have their four interior angles equal to 90 degrees and opposite sides parallel to each other.
Step-by-step explanation:
Kevin invests money in an account paying simple interest. He invests $40 and no money is added or removed from the investment. After one year, he has $42.80. What is the simple percent interest per year?
Answer:
Step-by-step explanation:
The simple percent interest per year is calculated by dividing the interest earned by the original amount invested, then multiplying by 100 to express the answer as a percentage.
In this case, Kevin earns $42.80 - $40 = $2.80 in interest.
So, the simple percent interest per year is ($2.80 / $40) * 100 = 7%
How do you solve 4 more than 5?.
To write 4 more than 5, we use the mathematical operation of addition and the notation 4 + 5 = 9.
To write 4 more than a number, we need to use the mathematical operation of addition. Addition is the process of combining two or more numbers to find the total or sum.
In this case, we are given the number 5 and we are asked to find the number that is 4 more than it. To do this, we can use the mathematical notation: 4 + 5 = 9.
This notation means that we are adding 4 to 5, which results in N+4. The "+" symbol is the addition operator and it is used to indicate that we are performing an addition operation. The "=" symbol is used to indicate that the result of the addition is N+4
Another way to write 4 more than a number is to use the phrase "4 plus 5". This phrase indicates that we are adding 4 to 5 to get 9.
Therefore, In short, to write 4 more than a number, we use the mathematical operation of addition and the notation 4 + Number = N+4. This means that we are adding 10 to a number, resulting in N+4. It can also be written as "4 plus N", indicating the same operation i.e 4 + 5 = 9.
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a line that includes the point (6,4) has a slope of -1/10 what is its equation in point slope form
The point Slope form equation is y = -1/10x + 26/5 , when a point (6,4) has a slope of -1/10
The point-slope form of a linear equation is given by y - y1 = m(x - x1), where (x1, y1) is a point on the line, and m is the slope of the line.
Given that the line includes the point (6,4) and has a slope of -1/10, we can substitute these values into the point-slope form to get the equation of the line:
y - 4 = -1/10(x - 6)
Simplifying this equation gives:
y = -1/10x + 26/5
So, the equation of the line in point-slope form is y = -1/10x + 26/5
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Please Help Asap...! :)
A) The time in minutes that it would reach 40% charge is; 48 minutes
B) The percent at 1 hr 48 minutes is; 90%
How to solve Linear Equation Word problems?The general form of the equation of a line in slope intercept form is;
y = mx + c
where;
m is slope
c is y-intercept
From the given parameters, we can find the slope from the formula;
m = (y2 - y1)/(x2 - x1)
m = (30 - 10)/(36 - 12)
m = 20/24
m = 5/6
Thus, for a 40% charge, we have;
5/6 = (40 - 30)/(t - 36)
Cross multiply to get;
5(t - 36) = 60
t - 36 = 12
t = 48 minutes
B) After 1 hr 48 minutes or 108 minutes, it means that;
Percentage = 5/6 * 108
= 90%
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The quotient of a number x and 19 is 10.
An equation is [ ].
The posted rates for cab fare are $4 plus $1 per
mile. How many miles can a passenger travel in the
cab for $15?
O 15 miles
O 8 miles
O 14 miles
O 11 miles
What is the first step in solving this equation 3 2x 6 )- 4x 2 5x 2 )+ 6?.
The correct option is D. Use the distributive property on each side of the equation.
In step with this belongings, multiplying the sum of two or more addends by means of a number will deliver the identical result as multiplying each addend in my view by the quantity after which including the products together. The distributive belongings tell us how to remedy expressions in the form of a(b + c). The distributive belongings are every so often known as the distributive law of multiplication and division.
The Distributive asset is an algebraic asset that states that when an element is improved by means of the sum or difference of terms, it's far essential to multiply every one of the two numbers by means of the element, and subsequently perform the addition or subtraction operation.
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Complete Question:
What is the first step in solving this equation? 3(2x + 6) – 4x = 2(5x – 2) + 6.
A). Use the subtraction property of equality to subtract 6 from both sides. B). Use the addition property of equality to add 4x to both sides.
C). Combine the like terms on each side of the equation.
D). Use the distributive property on each side of the equation.
What is the result when the number 28 is decreased by 25%?
Answer:
21
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
28 - 25%=21
What are the steps to plotting points on a coordinate plane?.
To plot a point in a coordinate plane, first we have to define the point, then determine the coordinates, both x and y coordinates. Then plot the point in the appropriate plane.
A point is usually in a coordinate plane is described by two axis, X and Y. A point will usually be denoted as (x,y). From these values we have to determine where the point might be lying. If the x value is positive it is towards the right of 0 and negative it will be towards left. Y value become positive upwards and negative downwards.
After determining the coordinates we label as the readings the the X axis and Y-axis. In the figure given below we have plotted some points.
Point A (2,2) with x-coordinate 2 and y coordinate 2 , B(4,-2) with x coordinate 4 and y coordinate -2, C(-3,-1) with x coordinate -3 and y coordinate -1, D(-2,3) with x coordinate -2 and y coordinate 3.
So, for plotting we have to determine the coordinates and plot it.
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Pls help me with this
Answer:
Answers in attached photo.
Step-by-step explanation:
SolutionSteps are in the attached photo, do note that to ensure the inequality sign are always constant throughout the entire working, otherwise one wrong line will result incorrect answers below it.
