What is a verbal expression for b-9
Answers
Answer:
Nine less than a number
Step-by-step explanation:
Related Questions
. Jumbo bought 5 books, each with a whole-number price.
The mean price of the books was $10. The median price was $8.
The most expensive book cost $15 and the cheapest cost $6.
What are the possible prices for the other books?
Answers
Mean is average. Multiply total books by the mean to find the total cost:
5x 10 = $50 total.
Subtract the highest and lowest prices to find the total of the remaining 3 books.
50 - 15-6 = 29
The median price was 8, this is the middle number, subtract 8 from 29 to get the cost of the last 2 books:
29-8 =21
Now you need a price lower than the median but higher than the lowest cost so that has to be 7
Subtract 7 from 21 to get the cost of the last book 21-7 = 14
The price of the remaining books is $7 and $14
Billy ran 52 yards. How many feet did he run?
Answers
Answer:
The answer to your problem is, 156
First lets find out how many feet or in one yard ?
Well 1 yard = 3 feet.
Now that we know that we can use our knowledge to answer the next question:
If Bill ran 52 yards, how many feet did he ran?
We can do math to solve our answer. :
1 x 52 = 52.
Now we need to multiply 52 x 3.
That is a little bit to much, so lets make the problem easier!
By breaking up the problem \/ to make it more easier.
50 x 3. ( 5 x 3 = 15, just add a zero! ) = 150
3 x 2 = 6.
Next add:
150 + 6 = 156.
Thus the answer to your problem is, 156
Help me pls thank you!!
Answers
is the answer because it states that you can use three sixes in order to make 18
Find the sum of squares of the deviations from the mean of a series of ACT scores listed below.31, 22, 24, 15, 23The sum of squares is(Type an integer or a decimal.)
Answers
Solution
Given the following scores below
\(31,22,24,15,23\)To find the sum of squares of the deviations,
Firstly, we find the mean, the formula to find the mean of ungrouped data is
\(\begin{gathered} \bar{x}=\frac{\sum_X}{n} \\ Where\text{ n is the number of terms} \end{gathered}\)Where n = 5
Substitute the given data into the formula to find the mean of ungrouped data
\(\begin{gathered} \bar{x}=\frac{31+22+24+15+23}{5} \\ \bar{x}=\frac{115}{5}=23 \\ \bar{x}=23 \end{gathered}\)Secondly, we subtract the mean from each of the values given as shown below
\(\begin{gathered} 31-23=8 \\ 22-23=-1 \\ 24-23=1 \\ 15-23=-8 \\ 23-23=0 \end{gathered}\)Then, to find the sum of squares of the deviations
We add the square of each of the deviations deduced above
\(\begin{gathered} =(8)^2+(-1)^2+(1)^2+(-8)^2+(0)^2 \\ =64+1+1+64+0 \\ =130 \end{gathered}\)Hence, the sum of squares is 130
what goes into 125 3 times
Answers
Answer:
41r6
Step-by-step explanation:
you dived 125 by 3
Answer:
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Step-by-step explanation:
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The perimeter of a train ticket is 60 centimeters. It is 17 centimeters long. How tall is it?
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If the perimeter of the train ticket is 60 centimeters and it's length is 17 centimeter long it's height is 13 centimeter
What is perimeter of a rectangle?A perimeter is a closed path that encompasses, surrounds, or outlines either a two dimensional shape or a one-dimensional length.
To find the perimeter of a rectangle we add all this sides together. This means that the perimeter of a rectangle is given as ;
P = l+l+w+w
P= 2(l+w)
60 = 2( 17+w)
60 = 2( 17+w)
17+w= 60/2
17+ w = 30
w = 30-17
w = 13cm
Therefore the height of the train ticket is 13cm
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May someone pls help me with this?
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Answer:
L m a o i only in middle school but its nice that people on this app are polite.
3x + 4 = 8x - 11
Solve using properties of equality.
check your solution.
x = a
Answers
Answer:
x=3
Let me know if you need an explanation.
Answer:
x = 3
Step-by-step explanation:
Step 1. add 11 to both sides
3x + 4 = 8x - 11
+11 +11
3x + 15 = 8x
Step 2. subtract 3x from both sides
3x + 15 = 8x
- 3x -3x
15 = 5x
Step 3. divide by 5 to isolate x
15 = 5x
/5 /5
x = 5
A population has a mean of
= 50 and a standard deviation of
= 10.
A) If 3 points were added to every score in the population, what would be the new values for the mean and standard deviation?
B) If every score in the population were multiplied by 2, then what would be the new values for the mean and standard deviation?
Answers
A) The new values for the mean and standard deviation, after adding 3 points to every score, would be a mean of 53 and a standard deviation of 10. B) The new values for the mean and standard deviation, after multiplying every score by 2, would be a mean of 100 and a standard deviation of 20.
A) Adding 3 points to every score in the population would result in a shift of the entire distribution. The new mean would be the original mean plus 3, so the new mean would be 50 + 3 = 53. The standard deviation would remain the same since it measures the spread of the data relative to the mean. Therefore, the new standard deviation would still be 10.
B) Multiplying every score in the population by 2 would affect both the mean and the standard deviation. The new mean would be the original mean multiplied by 2, so the new mean would be 50 * 2 = 100. The new standard deviation would also be multiplied by 2 since it measures the spread of the data relative to the mean. Therefore, the new standard deviation would be 10 * 2 = 20.
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1. Using the graph of the function f(x) shown below, answer the following questions.
(a) Find the value of each of the following:
f(-7)= f(0)=
f(4)= f(9)=
(b) For how many values of x does f(x)=5?Illustrate on the graph.
(c) What is the y-intercept of this relation?
(d) State the maximum and minimum values the graph obtains.
(e) Explain why the graph above represents a function.
Answers
Graphs can be used to represent functions, and vice verse
The values of f(-7), f(0), f(4) and f(9) are -6, 3, 1 and -4, respectively.f(x) = 5 illustrate three values of xThe y-intercept is 3The maximum and the minimum values of the graph are 5.5 and 6The graph passes the vertical line test.(a) The values of f(-7), f(0), f(4) and f(9)
At x = -7, the corresponding value of the function is -6.At x = 0, the corresponding value of the function is 3.At x = 4, the corresponding value of the function is 1At x = 9, the corresponding value of the function is -4Hence, the values of f(-7), f(0), f(4) and f(9) are -6, 3, 1 and -4, respectively.
(b) The number of values of the x at f(x) = 5
At f(x) =5, the values of x are -10, 1 and 3.
Hence, f(x) = 5 illustrate three values of x
(c) The y-intercept
This is the point where the graph crosses the y-axis, i.e. when x = 0.
Hence, the y-intercept is 3
(d) The maximum and the minimum values of the graph
The highest point on the graph is (2.5,5.5), while the least point is (-7,-6)
Hence, the maximum and the minimum values of the graph are 5.5 and 6, respectively.
(e) Why the graph represents a function
It represents a function because it passes the vertical line test.
This in other words means that, each x value has exactly one y value
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Pleaseeee helppppp !!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answers
Answer:
There are 8 boys for every 10 girls. This is 6 equal groups. Equal ratio
Step-by-step explanation:
A term life insurance policy will pay a beneficiary a certain sum of money upon the death of the policyholder. These policies have premiums that must be paid annually. Suppose a life insurance company sells a $250,000 one-year term life insurance policy to a 49-year-old female for $780. The probability the female will survive the year is 0.997. (a) Compute the expected profit of this policy to the insurance company. (b) Interpret the value of expected profit in (a) in the context of the problem.
Answers
(a) The expected profit of this policy to the insurance company is $520.10.
(b) The interpretation value of expected profit in (a) in the context of the problem is small probability of the policyholder's death.
(a) The expected profit to the insurance company can be calculated as follows:
Expected Profit = (Probability of Survival * Premium) - (Probability of Death * Death Benefit)
Probability of Survival = 0.997
Probability of Death = 1 - Probability of Survival = 1 - 0.997 = 0.003
Premium = $780
Death Benefit = $250,000
Expected Profit = (0.997 * $780) - (0.003 * $250,000) = $520.10
Therefore, the expected profit to the insurance company from selling this policy is $520.10.
(b) The expected profit of $520.10 represents the average profit that the insurance company can expect to earn from selling this type of policy to similar customers over time.
In the context of this problem, it means that if the insurance company sells many policies like this one, they can expect to make a profit of about $520.10 per policy, on average, after accounting for the small probability of the policyholder's death.
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Vie sold 45 raffle ticket. his brother sold twice as many. How many tickets did the sell together?
Answers
Answer:
135 tickets
Step-by-step explanation:
Vie's brother sold twice as many as Vie. So we multiply Vie's tickets by 2 to get the brother's.
VIe's brother sold 45 * 2 = 90 tickets
And all together the two sold
45 + 90 = 135 tickets
is this the right answer?
Answers
Answer: It looks about correct , yes.
Step-by-step explanation:
Answer:
Yes.
Step-by-step explanation:
This graph shows the solution to which inequality?
Answers
-2xy5 + 3x? – 10x3y6 + 8x6+ 4
Answers
Answer:
1. polynomial has 5 terms
Find the mean of a student test scores if he earned 5, 93, 85, 90 and 91 points on five tests
Answers
Answer:
72.8
Step-by-step explanation:
What is the area of the following composite figure? Round to the nearest whole.
Answers
Answer:
The answer to your problem is 53 in ^2
Hope it helps
What is the domain of the function f(x) = -x +15?
O x ≤ 30
Ο x > -2
O all real numbers
O x >0
Answers
Answer: The domain of a function is the set of all input values (x-values) for which the function produces a valid output. In the case of the function f(x) = -x + 15, the function will take any real number as input and produce a corresponding output.
Therefore, the domain of the function f(x) = -x + 15 is all real numbers. This can be represented as (-∞, ∞) or simply as "all x".
Option O is correct: x are all real numbers
Option O x ≤ 30, O x > -2, O x >0 are incorrect
Step-by-step explanation:
A FALLING APPLE WITH A TOTAL POTENCIAL ENERGY OF 10 JOULES AND A KINECTIC ENERGY OF 5 JOULES IS ABOUT TO REACH THE GROUND. WHAT IS THE APPLE'S TOTAL MECHANICAL ENERGY?
Answers
Therefore , the solution of the given problem of unitary method comes out to be has 15 Joules of mechanical energy in total shortly before it touches the ground.
Definition of a unitary method.This well-known simplicity, already-existing variables, and any necessary elements from the initial Diocesan customised query can all be used to finish the work. As a response, you can be given another chance to use the item. Otherwise, important effects on algorithmic knowledge will vanish.
Here,
An object's kinetic energy and potential energy are added to determine its overall mechanical energy. In this instance, the falling apple has a total mechanical energy of 10 Joules because of its potential energy and 5 Joules because of its kinetic energy.
=> Potential energy + kinetic energy = total mechanical energy.
=> The mechanical energy = 10 + 5 joules.
=> 15 Joules are the total mechanical energy.
The apple has 15 Joules of mechanical energy in total shortly before it touches the ground.
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The sides of a right triangle are (x-5) (x+2) (x+3). solve for x.
Can someone pls help me on this problem
Answers
Answer:
x = 10.
Step-by-step explanation:
The longest side , the hypotenuse = x + 3 because the lengths of the sides are positive.
So, by Pythagoras:
(x + 3)^2 = (x - 5)^2 + (x + 2)^2
x^2 + 6x + 9 = x^2 - 10x + 25 + x^2 + 4x + 4
0 = 2x^2 - x^2 - 10x + 4x - 6x + 29 - 9
x^2 - 12x + 20 = 0
(x - 10)(x - 2) = 0
x = 2, 10.
x cannot be 2 because that would make one side = 2- 5 = -3 so the answer is x = 10.
the reaction time of a driver to visual stimulus is normally distributed with a mean of 0.4 seconds and a standard deviation of 0.005 seconds. what is the probability that a reaction requires more than 0.5 seconds?
Answers
Answer:0.02275
Normal distribution:
Which is symmetrical about mean.
Mean:
It is the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.
Complement rule:
When two disjoint sets are meant to occur then the sets are said to be complementary.
Given:
Mean= 0.4 seconds
Standard deviation= 0.005 seconds
Let, X be the reaction time for the driver to view stimulus.
So, distribution of X is given by:
X~ N( 0.4, 0.005)
Where σ= 0.05 and µ= 0.4
Solving this ques by using normal standard deviation and z score given as:
z=\frac{x-µ}{σ}
Applying formula:
P(X>0.5)= P{(x-µ/σ) > (0.5-µ/σ)} P {Z > (0.5-0.4/0.05)}
=P(Z > 2)
By using complement rule we get,
P(Z>2) = 1- P(Z<2)
Using normal standard table we have,
P(Z>2)=1- P(Z<2)
= 1- 0.97725
= 0.02275
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The probability that a reaction requires more than 0.5 seconds is 0.0227
Z-score standardization:
The amount of standard deviations the data point deviates from the mean is shown by the standardized z-score.
• If the z-score increases when it is higher than the mean (0).
• If the z-score is below the mean and takes a negative value (0).
Given that,
Mean = μ =0.4
Standard deviation = σ =0.005
The probability that a reaction requires more than 0.5 seconds is obtained by;
Let X denotes the reaction time of a driver which follows a normal distribution with a mean of 0.4 seconds and a standard deviation of 0.005 seconds.
P(X > 0.5) = 1 - P(X < 0.5)
= 1 - P(0.4 < X < 0.5) (0.5 - 0.4/0.005)
= 1 - P(25.06)
= 1 - P(252)
From the “standard normal table”, the area to the left of is 0.9773.
P(X > 0.5) = 1 - P(252)
= 1 - 0.9773
= 0.0227
Hence, the probability that a reaction requires more than 0.5 seconds is 0.0227
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The fuel efficiency of a vehicle is 28 miles per gallon, and gasoline costs 2.25 per gallon. what is the cost per mile to drive the vehicle? (round to the nearest $0.01.)
Answers
The cost per mile obtained from the cost per gallon and the fuel efficiency of the vehicle is $0.08 per mile.
What is the cost per mile of fuel required to drive the vehicle?The cost per mile of fuel required to drive the vehicle is obtained as follows:
Cost of fuel per gallon = $2.25 per gallon.
Fuel efficiency of the vehicle = 28 miles per gallon
Cost per mile = Cost of fuel per gallon/Fuel efficiency of the vehicleCost per mile = $2.25/28 miles per gallon
Cost per mile = $0.08 per mile
In conclusion, the cost per mile is obtained from the cost per gallon and the fuel efficiency of the vehicle.
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Answer and explanation please
Answers
because the cube root of 27 is 3 and 15/3 is 5
in an emergency department, patients are assessed and placed in a categorical scale of 1, 2, 3, 4, or 5 based on the severity and urgency of their medical needs. how many dummy variables would be needed to include this categorical variable in a regression model?
Answers
Total 4 dummy variables would be needed to include this categorical variable in a regression model.
A regression analysis serves as the foundation for many types of forecasting and determining the effects on target variables. When you hear about studies in the news about fuel efficiency, pollution causes, or the effects of screen time on learning, a regression model is frequently used to back up their claims.
A dummy variable (also known as an indicator variable or simply dummy) in regression analysis is one that takes the values 0 or 1 to indicate the absence or presence of some classification impact that may be predicted to shift the result.
Total 4 dummy variables would be needed to include this categorical variable in a regression model.
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A carpet cleaner charges $50.97 to travel to the customers house and $15.11 per room cleaned. In the carpet cleaner charged $96.97 how many rooms did he clean?
Answers
The perimeter of a rectangle of length 4 cm and width 9 cm is:
A. 26cm
B. 13cm
C. 36cm
D. 26m
Answers
Perimeter of a Rectangle
0Save
Perimeter of the rectangle = PQ + QR + RS + SP
= b +l + b + l
= 2b +2l
Again,
ABCD is a rectangle. We know that the opposite sides of a rectangle are equal.
Perimeter of a Rectangle
AB = CD = 5 cm and BC = AD = 3 cm
So, the perimeter of the rectangle ABCD = AB + BC + CD + AD = 5 cm + 3 cm + 5 cm + 3 cm = 16 cm
It can be written as 5 cm + 5 cm + 3 cm + 3 cm
= (2 × 5) cm + (2 × 3) cm
= 2 (5 + 3) cm
= 2 × 8 cm
= 16 cm
hhhhhhhhheeeeeeeelllllllpppppp
Answers
Classify each pair of angles as Complementary, Supplementary, or Neither. Drag and drop the choices into the boxes to correctly complete the table. Each category may have any number of pair of angles. Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response.
Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Complementary Supplementary Neither
Answers
Answer:
Complementary is 2 angles that add up to 90 degrees and supplementary is 2 angles that add up to 180 degrees
48+32=80 so that would be neither
101+77=178 so that would be neither
107+73=180 so that would be supplementary
Step-by-step explanation:
have a nice day.
Answer:
only here for points
Step-by-step explanation:
Which panda was heavier when born
Answers
Answer: The one on the left.
Step-by-step explanation:
There is no file, but the panda on the left is bigger.