The response to the given question would be that As a result, there is a probability 1.3% chance (or about 0.013) that a random sample of 50 seniors will have a mean score of no higher than 415.
What is probability?Calculating the chance that an event will occur or a statement will be true is the subject of probability theory, a branch of mathematics. A risk is a number between 0 and 1, where 1 denotes certainty and a probability of about 0 denotes the likelihood that an event will occur. The likelihood that an event will take place is mathematically expressed as probability. Probabilities can also be expressed as percentages ranging from 0% to 100% or as integers between 0 and 1. the proportion of equally plausible possibilities that actually happen in relation to all possible outcomes when a certain event occurs.
The sample mean's sampling distribution may be approximated using the central limit theorem as having a mean of 425 and a standard deviation of[tex]80\sqrt(50) = 11.31.[/tex]
z is equal to (x - mu) / (sigma / sqrt(n))
where n is the sample size, x is the sample mean, mu is the population mean, sigma is the population standard deviation.
When we enter the values, we obtain:
[tex]z = (415 - 425) / (80\sqrt(50)) = -2.23[/tex]
As a result, there is a 1.3% chance (or about 0.013) that a random sample of 50 seniors will have a mean score of no higher than 415.
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Please help with this problem
The answer as a fraction in lowest terms is 4/81, and the denominator is 81.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.
P(E) = Number of favorable outcomes / total number of outcomes
We are given that;
There are 4 green card, 2 red cards, 3 blue cards
Now,
If the first card drawn is red and is replaced before the second draw, then the probability of drawing a red card on the second draw is the same as the probability of drawing a red card on the first draw, which is 2/9 (since there are 2 red cards out of a total of 9 cards).
To find the probability of drawing two red cards, we need to multiply the probability of drawing a red card on the first draw (which we know is 2/9) by the probability of drawing a red card on the second draw, which is also 2/9 (since the first card is replaced).
So the probability of drawing two red cards with replacement is:
(2/9) * (2/9) = 4/81
Therefore, the probability and denominator will be 4/81 and 81.
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Answer:
The answer is 1/25
Step-by-step explanation:
Please help me brainly!
Answer:
The answer is multiplying the whole number by the numerator and add the denominatorStep-by-step explanation:
[tex]7 \ + \frac{2}{3 } + 2 \ + \frac{2}{3} [/tex][tex]7 \times 3 + 2 = 23 [/tex]
[tex]2 \times 3 + 2 = 8[/tex]
[tex] \frac{23}{8}[/tex]
so if want to have improper fraction this is the answer but to get proper fraction i am continuing
[8 \div 23 \sqrt[23]{80} to get the correct answer.you can get a mixed fraction too when you multiply 8 how many times you will get 23 8×2=16=2whole number 16 as the numerator and 8 as the denominator
if x=7 is an x-intercept of f(x)=x^3 - 7x^2 +9x-63 write f(x) in factored form
The factored form of the polynomial f(x) = x³ - 7x² + 9x - 63 is,
(x - 7)(x² + 9).
What is a factor of a polynomial?We know that if x = a is one of the roots of a given polynomial x - a = 0 is a factor of the given polynomial.
To confirm if x - a = 0 is a factor of a polynomial we replace f(x) with f(a) and if the remainder is zero then it is confirmed that x - a = 0 is a factor.
Given, A polynomial f(x) = x³ - 7x² + 9x - 63.
Now, If x = 7 is an x-intercept then one root(cuts the x-axis) is 7 and one factor is (x - 7).
Now, Factoring(long division) f(x) = x³ - 7x² + 9x - 63 by (x - 7) we have,
(x³ - 7x² + 9x - 63) = (x - 7)(x² + 9).
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Find the present value of 50000 for 30 years at 6%
Answer:
i believe its 24500
Step-by-step explanation:
FIND THE ERROR Chun and Traci are determining the value of x in the figure. Chun says to find the value of x, solve the proportion 58=15x,
but Traci says to find the value of x, the proportion 5x=815
should be solved. Is either of them correct? Explain your reasoning.
The solution is, Chun is correct.
What is triangle proportionally?The angle bisector divides the sides of the triangle proportionally. Any proportion that is written should equate ratios of corresponding sides.
here, we have,
Chun's proportion correctly relates the top-side measures to their corresponding bottom-side measures:
top short : bottom short = top long : bottom long
5 / 8 = 15 / x
Traci's error is that she mixes top-side and bottom-side measures. Her incorrect relation is ...
top short : bottom long = bottom short : top long
She has used top:bottom for short measures and bottom:top for long measures. This mixing will give Traci an incorrect solution.
Chun's proportion correctly gives x=24.
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What is the monthly interest rate if the annual interest rate is 24%?
Answer: 2%
Step-by-step explanation:
annual interest rate is based off a year
monthly is based off month
there are 12 months in a year, so to find the monthly interest you just divide the annual interest by 12.
Select the solution to the subtraction problem expressed by the number line below.
Find the value of x
Answer:
x = 20
Step-by-step explanation:
We know that the vertically opposite angles are equal.
Accordingly,
41 = 2x + 1
Subtract 1 from both sides.
41 - 1 = 2x
40 = 2x
Divide both sides by 2.
x = 20
50 POINTS. if needed rotate in top right corner
Answer: 38
Hope this helps!
Translation: 3 left and 3 up
Answer: (3,-1) = (0,2) (5,-2) = (2,1) (3,-5) = (0,-2) (-5,-5) = (-2,-2)
Step-by-step explanation:
Solve the inequality
Answer: x> -28/13
Step-by-step explanation:
1.
Simplify the expression
2. Combine multiplied terms into a single fraction
3. Distribute
4. Rearrange terms
5. Combine multiplied terms into a single fraction
6. Multiply by 1
7. Multiply all terms by the same value to eliminate fraction denominators
8. Cancel multiplied terms that are in the denominator
9. Distribute
10. Distribute
negative five-sevenths ( 21 x plus 35 ) < 1/3 ( 9-6 x )
negative 315 x minus 525 is less than negative 42 x plus 63
2
Add
525
to both sides
3
Simplify the expression
4
Add
42 x
to both sides
5
Simplify the expression x> -28/13
Triangle with angles A= 30 degrees mB =60 degrees Mac = 90 degrees which is true
We have a right triangle with sharp angles measuring 30 and 60 degrees, proving the assertion "Triangle with angles A= 30 degrees, B= 60 degrees, C= 90 degrees" to be true.
How are triangles determined by angles?To assess whether the supplied angles may form a triangle, we can use the knowledge that the total of the angles in a triangle is always 180 degrees. Let's figure up the angles' total:
180 degrees is equal to A + B + C = 30 + 60 + 90.
The supplied angles can definitely form a triangle because the sum of the angles is 180 degrees. We can now utilise the data to identify the kind of triangle.
The angles indicate that a right triangle with a 90-degree angle (angle C) and acute angles of 30 degrees and 60 degrees (angles A and B) exists (angle B).
The measurements of angles A and B are compatible with the available information since the total of the acute angles in a right triangle is always 90 degrees.
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Mario walked at a rate of 2/3 mile every 10
minutes.
Using displacement, His unit rate every mile per hour will be 4 miles/hours.
What is displacement?When a body shifts from one position to another, displacement is the smallest (straight line) distance between the starting position and the ending position of the body, which is symbolized by an arrow pointing from the starting position to the ending position. Displacement is a vector quantity that describes "how far out of place an object is"; it represents the overall change in the position of the object.
Mario walked at a rate of 2/3 mile every 10 minutes.
We have,
Distance = 2/3 miles
Time = 10 minutes
On substituting these values in the above formula, we get
speed = 2/10.3
We have to find the unit rate in mile per hour, so we need to multiply it by 60, 1/15 × 60 = 4 miles/hours
Hence, his unit rate every mile per hour will be 4 miles/hours.
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If the model is 18 inches long and the actual locomotive is 72 feet long, what is the similarity transformation to map from the model to the actual locomotive? Express the answer using the notation x* ax, where x is a measurement on the model and ax is the corresponding measurement on the actual locomotive.
Answer:
(1/48)ax
Step-by-step explanation:
We can use the proportion of the lengths of the model and the actual locomotive to determine the scale factor for this similarity transformation.
The model is 18 inches long, which is equivalent to 1.5 feet (since 1 foot = 12 inches). The actual locomotive is 72 feet long. So, the scale factor can be calculated as:
scale factor = actual length / model length
scale factor = 72 feet / 1.5 feet
scale factor = 48
This means that each measurement on the model is 1/48th the size of the corresponding measurement on the actual locomotive. We can express this similarity transformation using the notation x* ax as: x* (1/48)ax
So, if a measurement on the model is x, the corresponding measurement on the actual locomotive would be (1/48)ax.
In 2,894.0, which digit is in the hundreds place?
Answer:
Step-by-step explanation:
The 8 is in the hundreds place.
Answer:
The 8 is in the hundreds place.
Step-by-step explanation:
2,000 (Thousands Place)
800 (Hundreds Place)
90 (Tens Place)
4 (Ones Place)
0.0 (Tenths Place)
2,894.0
(a+b)² + 4 (a+b) + 4
pls tell me how to do this
The factors of given expression are (a+b+2) and (a+b+2).
What is factorization?The factorization method uses basic factorization formula to reduce any algebraic or quadratic equation into its simpler form, where the equations are represented as the product of factors instead of expanding the brackets. The factors of any equation can be an integer, a variable, or an algebraic expression itself.
The given expression is (a+b)²+4(a+b)+4.
Here, take x=a+b
Now, x²+4x+4
= x²+2×2×x+4 (Algebraic identity (a+b)²=a²+2ab+b²)
= (x+2)²
= (a+b+2)²
= (a+b+2)(a+b+2)
Therefore, the factors are (a+b+2) and (a+b+2).
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Does it really matter if a person keeps failing math tests or is known to not be good in maths? how does that affect him/her?
Answer: It doesn't really matter
Step-by-step explanation: This is more of an opinion question, but failing math tests doesn't mean you aren't good at math, some people have different reasons why they don't try at math. Math tests don't define how good or bad you really are in math. You can fail a math test and be good at math, but not passing math tests might also create a lot of issues in the careers you're trying to persuade in because math is one of the most useful subjects. If colleges see your math scores and how badly you performed in them, they won't pick you, which is why is always nice to try no matter how easy or hard it is.
For this item, complete the choice matrix by clicking the appropriate answer in each row.
Determine whether each of the following is a real zero of the polynomial p(x)=(2x−7)(x2−49)p(x)=(2x−7)(x2−49).
The answer for the given polynomial function are given below:
Real zero of the polynomial : x= -7
x= 7/2
x= 7
Not a real zero of the polynomial : x= -49
x= -7/2
x= 49
What is polynomial function?It is a function of a single independent variable involving only non - negative integer powers. For example 5x+7.
What is zero of polynomial?
Zero of polynomial are the points for which the polynomial becomes zero as a whole.
Given polynomial function is P(x)= (2x-7)(x²- 49)
For the zeros of the polynomial we need to take P(x)=0
(2x-7)(x² -49)=0
Either (2x-7)=0 or (x² -49)=0
If, 2x-7=0
2x=7
x=7/2
If, x² -49=0
x² =49
x=±√49
x=± 7
Hence, x= -7, 7/2, 7
so the real zeros of the polynomial are -7, 7/2, 7.
rest of the numbers are not the real zeros of the polynomial.
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A circular track is 1/8 long it takes Aaron 1/22 of an hour to complete it. What is Aaron’s running speed?
Aaron running speed is 2 3/4 miles per hour
What is Speed?
Speed is the ratio of distance to the time in which the distance was covered. Speed can be measured as the distance traveled by a body in a given period of time. The SI unit of speed is m/s, km/hr, miles/hr and so on. It is also a measurement of how fast an object is moving through a path.
Where the formula is Speed = Distance/Time
Where Distance covered = 1/8 miles
Time taken = 1/22 of an hour
Speed = (1/8)/(1/22)
Speed = 1/8 *22/1
Speed = 22/8
Speed = 11/4
Spees = 2 3/4 miles per hour
Therefore, Aaron running speed is 2 3/4 miles per hour
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somebody Please help me please
What statement is missing in step 4
The correct option c ) m∠5 + m∠2 = m∠3 + m∠2, is the missing statement in step 4.
Explain about the traversal of parallel line?When a transversal divides two parallel lines, the resulting alternate interior angles are congruent.
The pairs of angles from outside two lines and on either side of a transversal that cuts two lines are referred to as the alternate external angles.Lines that never intersect and always remain the exact same distance apart are said to be parallel. A line that crosses 2 or more additional lines is referred to as a transversal.Alternative External Angles are congruent if a transversal cuts two parallel lines. When a transversal cuts two parallel lines, the resulting angles are congruent.Thus, m∠5 + m∠2 = m∠3 + m∠2, is the missing statement in step 4.
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A Diagram Of Two Rectangular Prisms Is Shown Below. 45 Explain The Process For Determining the combined volume of the two prisms.
Therefore, the combined volume of the two rectangular prisms is 132 cubic units.
Provide an illustration of a rectangle.2-D enclosed shapes with four sides, four corners, and four right angles are called rectangles. A rectangle has two equal and parallel opposite sides.
To determine the combined volume of the two rectangular prisms shown in the diagram, we need to find the sum of their individual volumes. The volume of a rectangular prism is given by the formula:
Volume = length x width x height
In the diagram, we can see that the first rectangular prism has a length of 5 units, a width of 3 units, and a height of 4 units. The second rectangular prism has a length of 6 units, a width of 4 units, and a height of 3 units.
To find the volume of the first rectangular prism, we can use the formula:
Volume of first prism = length x width x height
Volume of first prism = 5 units x 3 units x 4 units
Volume of first prism = 60 cubic units
To find the volume of the second rectangular prism, we can use the same formula:
Volume of second prism = length x width x height
Volume of second prism = 6 units x 4 units x 3 units
Volume of second prism = 72 cubic units
Finally, to find the combined volume of the two prisms, we just need to add their individual volumes:
Combined volume = Volume of first prism + Volume of second prism
Combined volume = 60 cubic units + 72 cubic units
Combined volume = 132 cubic units
Therefore, the combined volume of the two rectangular prisms is 132 cubic units.
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help!! Find the missing length and found it to the nearest tenth.
The missing length the right triangle to the nearest tenth is 8.8 units.
What is the missing length?The figure in the image is a right traingle.
Measure of first leg = 2Hypotenuse = 9Measure of second leg = ?To solve for the second leg of the right triangle given the first leg and hypotenuse, we can use the Pythagorean theorem.
It states that the sum of the squares of the two legs is equal to the square of the hypotenuse.
a² + b² = c²
Let's denote the second leg by 'b'. Then we have:
2² + b² = 9³
Simplifying the equation:
4 + b² = 81
Subtracting 4 from both sides:
4 - 4 + b² = 81 - 4
b² = 77
Taking the square root of both sides:
b = √77
b = 8.8 units
Therefore, the second leg of the right triangle is 8.8 unit.
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In yesterdays basketball game, Emily scored 19 points with a combination of 2-point and 3-point baskets. She scored a total of 9 baskets which graph below accurately models this situation?
The graph that models the situation is on the image at the end, we can see that she scored 8 2-pointers and 1 3-pointer.
How to find the graph?Let's define the variables:
x = number of 2-points that she scored.
y = number of 3-points that she scored.
We know that she scored 19 points, then we have the equation:
2x + 3y = 19
And we also know that she scored a total of9 baskets, so we have other equation:
x + y =9
Then we have a system of equations:
2x + 3y = 19
x + y = 9
The graph of that system is the graph that models the situation, it is shown at the end of the answer.
There you can see that the solution is (8, 1)
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413 + (43x - 21) = 1080
this grid shows the location of four animals where is chewy located (picture)
A, (5,1)
B, (6,3)
C,(1,5)
D,(3,6)
Answer:
A) (5 , 1)
Step-by-step explanation:
The x coordinate goes first, then the y coordinate: (x , y)
In this case, locate Chewy. Chewy is found in the x-coordinate of 5, and a y-coordinate of 1. Therefore, (5 , 1) or A) is your answer.
~
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Whats the easiest way to solve "two unit multipliers"?
The easiest way to solve problems involving "two unit multipliers" is to use a technique called unit conversion or dimensional analysis.
To solve such problems, you need to convert the given value from one unit to another by multiplying it by a series of conversion factors or unit multipliers. A conversion factor is a fraction that has the same value as one, but its numerator and denominator are expressed in different units.
For example, to convert 10 meters to feet, you can use the conversion factor:
1 meter = 3.28 feet
To convert 10 meters to feet, you would multiply 10 by the conversion factor:
10 meters * (3.28 feet/1 meter) = 32.8 feet
The meters unit cancels out, leaving you with the desired unit of feet.
In some cases, you may need to use multiple conversion factors to get from one unit to another. In these cases, you can multiply or divide the conversion factors to cancel out the unwanted units until you get to the desired unit.
Using unit conversion or dimensional analysis is an effective way to solve problems involving two unit multipliers because it ensures that the units cancel out correctly, and you end up with the desired unit in your final answer.
Hi can someone please help me with this!!! I'm struggling with this!
I really appreciate it!!!
Find the value of a, m, x
Answer:
Refer to pic..........
At the grocery store 5 apples cost 4.25. how much will one apple cost?
Answer:$0.85
Step-by-step explanation: 4.25/5=0.85
Simplify the expression -42(3 − 7).
Answer: 168
Step-by-step explanation:
the bobcats scored 133 points on touchdowns they scored the rest of their point by kicking field goals worth 3 points each How many field goals did the bobcats kick
Answer: To solve the problem, we need to subtract the number of points scored on touchdowns from the total number of points to find out how many points were scored on field goals.
133 points - (number of touchdowns x 7 points per touchdown) = points scored on field goals
We don't know the number of touchdowns, but we can use the fact that each touchdown is worth 7 points to write:
133 points - 7x = points scored on field goals
Now we can divide the points scored on field goals by the value of each field goal to find the number of field goals:
(points scored on field goals) / (3 points per field goal) = number of field goals
Putting it all together:
133 points - 7x = points scored on field goals
(points scored on field goals) / (3 points per field goal) = number of field goals
We need to solve for x, the number of touchdowns. We can start by isolating points scored on field goals:
133 points - 7x = points scored on field goals
points scored on field goals = 133 points - 7x
Now we can substitute this expression into the second equation:
(133 points - 7x) / (3 points per field goal) = number of field goals
Simplifying:
44.33 - 2.33x = number of field goals
Since the number of field goals must be a whole number, we can try different values of x until we find an integer solution. For example, if we assume that the Bobcats scored 16 touchdowns, then:
133 points - 7(16) = 21 points scored on field goals
21 points scored on field goals / 3 points per field goal = 7 field goals
Therefore, the Bobcats kicked 7 field goals.
Step-by-step explanation: