Answer:
0.11 like neither paperback or fiction.
Step-by-step explanation:
I did the test.
The probability of neither paperback nor non-fiction is 0.81 as a decimal.
To find the probability of an event, we can use the formula:
P(A or B) = P(A) + P(B) - P(A and B)
P(A or B) is the probability of either event A or event B occurring,
P(A) is the probability of event A occurring,
P(B) is the probability of event B occurring,
P(A and B) is the probability of both event A and event B occurring.
In this case, we want to find the probability of "neither paperback nor non-fiction," which is the complement of "both paperback and non-fiction." Let's define the events:
A: Paperback
B: Non-fiction
We are given the following probabilities:
P(A) = 0.44 (probability of paperback)
P(B) = 0.26 (probability of non-fiction)
P(A and B) = 0.19 (probability of both paperback and non-fiction)
Now, we can find the probability of "neither paperback nor non-fiction":
P(neither paperback nor non-fiction) = 1 - P(A and B)
P(neither paperback nor non-fiction) = 1 - 0.19
P(neither paperback nor non-fiction) = 0.81
So, the probability of "neither paperback nor non-fiction" is 0.81 as a decimal.
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Blake works in a grocery store as a stocker. His job involves counting the number of cans on the shelves before he adds new
inventory. He counts the cans in groups of ten to make it easier for him to keep track. He has counted 57 groups of ten cans so
far. How many cans has he counted?
Answer:
570 cans
Step-by-step explanation:
He counts in groups of ten cans
1 group= 10 cans
2 groups= 20 cans
Multiply the number of groups by ten
57 groups= 570 cans
57*10=570
Answer:
Step-by-step explanation:
570 cans
Step-by-step explanation:
He counts in groups of ten cans
1 group= 10 cans
2 groups= 20 cans
Multiply the number of groups by ten
57 groups= 570 cans
57*10=570
This is (Worth 10 points)
Answer:
C. Both A and B are solutions to the equation
Step-by-step explanation:
A negative number sqaured is positive.
Answer:
D
Step-by-step explanation:
It is D because the correct awnser is X=4
Translate the following into a formula:
The sum S of the measures of the angles of a polygon is equal to 180 times the difference of the number of sides n and 2.
The value of the formula will be;
⇒ S = 180 (n - 2)
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The algebraic expression is,
''The sum S of the measures of the angles of a polygon is equal to 180 times the difference of the number of sides n and 2.''
Now,
Since, The algebraic expression is,
''The sum S of the measures of the angles of a polygon is equal to 180 times the difference of the number of sides n and 2.''
Hence, We can formulate the expression as;
⇒ S = 180 (n - 2)
Thus, The value of the formula is,
⇒ S = 180 (n - 2)
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This may be hard to put together, but I need help with an angle equation. I'm looking for example equations and how to do these types of equations. *please note that this equation is completely random and probably ends with an ugly number. it's just an example of a type of problem*
Example: (2x - 4) x=7 so (2x (x=7) - 4) =18
Estelle is 1.42 meters tall. Convert her height to centimeters.
In the metric system, we have the next equivalence:
\(1\text{ m=100cm}\)Therefore, we can convert from meters to centimeters multiplying by 100
As Estelle is 1,42 meters, her height in centimeter must be:
\(1.42*100=142centimeters\)That is Estelles's height is 142 centimeters.
The population of Westport was 43,000 at the beginning of 1980 and has steadily decreased by 1% per
year since.
Find the population at the beginning of 1994. Round to the nearest person.
Answer:
37356
Step-by-step explanation:
Which number line shows 1 to 4 divided into fifths?
Answer:
Second option!!!
Step-by-step explanation:
Hope it helps you:)
A student measures the length,width, and height of a fish tank. She finds that the fish tank is 105cm long, 75cm wide,and 80.5 cm high. What is the volume of the fish tank? Show your work. Use scientific notation and show the correct number of significant figures in your answer
The volume of the fish tank is 633,957.5 cubic cm or 0.634 cubic meter.
The formula for calculating the volume of a cuboid is
= length × breadth ×height
Given :
the length of fish tank = 105 cm
The width of fish tank= 75 cm
The height of fish tank= 80.5 cm
So, the volume of the fish tank =105×75 ×80.5
=633,957.5 \(cm^{3}\)
In metric units ;
1 meter = 100 cm
So, converting all the dimensions into metric units.
length of fish tank = 1.05 m
width of fish tank = 0.75 m
height of fish tank = 0.805 m
So, the volume of fish tank = 1.05 x 0.75 x 0.805
= 0.6339575 \(m^{3}\) or
= 0.634 \(m^{3}\)
Simplify the expression 3a² + 1/4a + 3 + a² + 4 + 1/4a
The Correct answer while simplifying the given algebraic expression is: 4a²+1/2a+7
What are Algebraic Expressions?The concept of algebraic expressions is the use of letters or alphabets to represent numbers without providing their precise values. We learned how to express an unknown value using letters like x, y, and z in the fundamentals of algebra. Here, we refer to these letters as variables. Variables and constants can both be used in an algebraic expression. A coefficient is any value that is added before a variable and then multiplied by it.
Method to simplify any algebraic Expressions are :
By multiplying factors, remove any grouping symbols like brackets and parenthesis.If the words contain exponents, use the exponent rule to eliminate grouping.Add or subtract like terms to combine them.Add the constants togetherGiven:
=3a²+1/4a+3+a²+4+1/4a
=(3a²+a²)+(1/4a+1/4a)+(3+4)
=4a²+1/2a+7
So the Answer is
=4a²+1/2a+7
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The radius of a circle is 19 cm. Find the area
Answer: 1134.11
A=3.14*r^2
Step-by-step explanation:
Answer:
a ≈ 1134.11 cm2
Step-by-step explanation:
The formula:
\(a=\pi r^{2}\)
\(a=\pi (19)^{2} =361\pi\)
\(a=1134.11cm^{2}\)
Hope this helps
the length of a ruler is 170cm,if the ruler broke into four equal parts.what will be the sum of the length of three parts
Answer:
127.5
Step-by-step explanation:
Multiply 170 by 0.75
127.5
Answer:
3 divided by 4 = 0.75 = 3/4
0.75 x 170 = 127.5
or
170/1 x 3/4 = 510/4 = 127 1/2
1/2 = 0.5 = 1 divided by 2
127 + 0.5 = 127.5
127.5 is the answer
Hope this helps
Step-by-step explanation:
I don’t know how to do this one.
Answer:
(a) The unit circle is centered at (0,0) with a radius of 1.
(b) The equation of a circle of radius r, with a center located at (0,0):
x²+ y² = r².
(c) (i) P(1,0)
(ii) P(0,1)
(iii) P(-1,0)
(iv) P(0,-1)
Step-by-step explanation:
Part (a)
The unit circle is centered at (0,0). This point is the origin.
The radius of the unit circle is 1
The term "unit" means "one", which describes the radius length.
=========================================================
Part (b)
The equation of the unit circle is x^2+y^2 = 1
The general equation of any circle is (x-h)^2+(y-k)^2 = r^2
In this case, the unit circle has center (h,k) = (0,0) and radius r = 1.
=========================================================
Part (c)
The following four points are on the unit circle
(1,0)(0,1)(-1,0)(0,-1)As shown below in the diagram. The idea is to plug each given coordinate into the equation from part (b), and solve for the missing variable.
For example, if we know x = 1, then...
x^2+y^2 = 1
1^2+y^2 = 1
1+y^2 = 1
y^2 = 1-1
y^2 = 0
y = sqrt(0)
y = 0
Meaning x = 1 leads to y = 0. So (x,y) = (1,0) is one point on the circle. The other parts are handled in a similar fashion.
read the question on the paper please
The dimensions for a square that has a perimeter of 14 units and area or 49 units² will be 7 units by 7 units.
How to calculate the sidesThe perimeter of a shape is simply the total length of the boundary that the shape has. It should be noted that in this case, it's gotten by adding all the length that the shape has.
The area of a shape simply means the total space that is taken by the shape. It simply expresses the extent of the region on a particular plane as well as a curved surface.
In this situation, the square has a perimeter of 14 units and area or 49 units². The dimensions will be 7 units by 7 units.
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Which of the following best describe this graph?
skewed left
skewed right
uniform distribution
center near 5
center near 7
data spread from 3 to 9
does not have an outlier
The term that best describe this graph attached is
does not have an outlier
What is outlier?An outlier is a data point that significantly deviates from the general pattern or trend of a dataset. It is an observation that is noticeably different from other data points in terms of its magnitude or value.
Outliers can be either unusually high (positive outliers) or unusually low (negative outliers) compared to the rest of the data.
The graph is not exactly uniform even though it is not skewed
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Which is the equation of the given line?
Question options:
A. x = –2
B. y = –2x
C. x = 2
D. y = –2
Answer:
Option D: \(y=-2\)
Step-by-step explanation:
The line is horizontal, which means the slope is 0. The line also crosses the y-axis at (0,-2). Thus y at 0 is equal to 2.
the following are the populations for the top twelve largest cities in the u. s. New York city, NY: 8,336,817 Los Angeles ca: 979.576 Chicago, il:2,693,976 Houston, Tx: 2,320,268 phoenix Az: 1,680,992 Philadelphia pa: 1,584,064 San Antonio Tx: 1, 547,253 San Diego ca: 1,423,851 Dallas Tx: 1,343,573 San Jose ca: 1,021,795 Austyn tx:978,908 Jacksonville Fl: 911,507. what is the mean population?, what is the median population?, what is the mode?, what is range?, what is the standard deviation?I need the standard deviation, I already did mode, mean, range, take the value of the population of each city, subtract the mode raised to 2, it does not give me the result
The mean is 2,071,798.33
The Median is 1,485,552
The range is 7,425,310
The standard deviation is given as 1961105.68
The mean population can be computed as:Mean = (Sum of all populations) / (Number of cities)
= (8,336,817 + 979,576 + 2,693,976 + 2,320,268 + 1,680,992 + 1,584,064 + 1,547,253 + 1,423,851 + 1,343,573 + 1,021,795 + 978,908 + 911,507) / 12
= 24,861,580 / 12
= 2,071,798.33
To find the median, we need to arrange the populations in increasing order and find the middle value. If we arrange these values, we get:
911,507, 978,908, 979,576, 1,021,795, 1,343,573, 1,423,851, 1,547,253, 1,584,064, 1,680,992, 2,320,268, 2,693,976, 8,336,817
Since there are 12 cities (an even number), the median would be the average of the 6th and 7th values:
Median = (1,423,851 + 1,547,253) / 2
= 1,485,552
The mode isn't applicable here as no city population repeats.
The range is the highest population minus the lowest population:
Range = 8,336,817 - 911,507
= 7,425,310
Standard deviation = (911507- 2068548.3333333)² + (978908 - 2068548.3333333)² + (979576 - 2068548.3333333)² + ( 1021795 - 2068548.3333333)² + (1343573- 2068548.3333333)² +( 1423851- 2068548.3333333)² + (1547253- 2068548.3333333)² +( 1584064- 2068548.3333333)² + (1680992- 2068548.3333333)² + ( 2320268- 2068548.3333333)² +(2693976- 2068548.3333333)² +( 8336817 - 2068548.3333333)² / 12
= 46151226311869 / 12
= 3845935525989.1
\(standard deviation = \sqrt{ 3845935525989.1}\)
= 1961105.6896529
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Molly used 192 beads to make a necklace AND a bracelet. It takes 5 times as many beads to make a necklace as it does a bracelet. How many beads are used to make the necklace?
Examining the word problem we can say that, Molly used 160 beads to make the necklace.
How to find the number of beadsLet's assume the number of beads used to make the bracelet is x.
We also know that Molly used a total of 192 beads for both the necklace and the bracelet. and It takes 5 times as many beads to make a necklace as it does a bracelet, So,
x + 5x = 192
6x = 192
solve for x
x = 192 / 6
x = 32
Molly used 32 beads to make the bracelet.
number of beads used to make the necklace
Number of beads used for the necklace = 5 * 32
Number of beads used for the necklace = 160
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Which pair of angles are complementary? 2 points Option 1 O Option 2 O Option 3 O Option 4
Answer:
option 4, complementary angles total 90°
Step-by-step explanation:
Which of the following ordered pairs is a solution to y=2^x
If 18% of a number is 24, find 3% of that number. You must show your work in the work space.
Answer:
hello
18 % = 24
3 % = ( 3 x 24 ) / 18 = 4
Step-by-step explanation:
16-x=-2 help out just answer the right answer
Answer:
x = 18
Explanation:
16 - 18 = -2
2) √51 is closest to which whole
number?
After cοmpleting the task, we can state that The whοle number clοsest tο expressiοn 7.141 is 7. Therefοre, √51 is clοsest tο the whοle number 7.
What is whοle number?The whοle numbers are the part οf the number system which includes all the pοsitive integers frοm 0 tο infinity. These numbers exist in the number line. Hence, they are all real numbers. We can say, all the whοle numbers are real numbers, but nοt all the real numbers are whοle numbers.
Thus, we can define whοle numbers as the set οf natural numbers and 0. Integers are the set οf whοle numbers and negative οf natural numbers. Hence, integers include bοth pοsitive and negative numbers including 0. Real numbers are the set οf all these types οf numbers, i.e., natural numbers, whοle numbers, integers and fractiοns.
√51 is apprοximately equal tο 7.141. The whοle number clοsest tο 7.141 is 7.
Therefοre, √51 is clοsest tο the whοle number 7.
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The cost of packing a box of chocolates is given by 1/4x^2, where x is the number of chocolates (a box can never have fewer than 3 chocolates). If the weight of a box of chocolates is given by x + 2, what is the cost of packaging per weight unit?
A.1/4x-1/2+1/x+2
B.1/4x^2-1/2x+1
C.1/4x^2-1/2+1
D.1/4x-1/2x-1/x+2
The cost of packaging the box of chocolates per weight unit is; ¹/₄x²/(x + 2)
How to Solve Algebra problems?We are given the cost of packing the box as;
C(x) = ¹/₄x²
where;
x is the number of chocolates
We are told that a box can never have fewer than 3 chocolates.
Now, the weight of a box of chocolates is given by; W(x) = x + 2
Thus, cost per unit weight is;
C(x)/W(x) = ¹/₄x²/(x + 2)
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How much should you put in an investment paying a simple interest rate of 5% if you needed $4000 in eighteen mont
now, there are 12 months in a year, so 18 months is really 18/12 of a year, thus
\(~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$4000\\ P=\textit{original amount deposited}\\ r=rate\to 5\%\to \frac{5}{100}\dotfill &0.05\\ t=years\to \frac{18}{12}\dotfill &\frac{3}{2} \end{cases} \\\\\\ 4000=P[1+(0.05)(\frac{3}{2})]\implies 4000=P(1.075) \\\\\\ \cfrac{4000}{1.075}=P\implies 3720.93\approx P\)
someone please answer this its confusing me
Give two different solutions to find the area of the figure shown below. Describe in detail how you find your answer.
9514 1404 393
Answer:
8.5 square units
Step-by-step explanation:
1. Pick's theorem tells you the area of a figure with vertices on a grid is ...
A = i +b/2 -1
where i is the number of interior grid points, and b is the number of grid points on the boundary.
Here, the interior grid points are easily counted. There are 5 of them.
The boundary grid points are only at the vertices of this figure, and there are 9 of them. Then the area is ...
A = 5 +9/2 -1 = 8.5 . . . . square units
__
2. Decomposition of the figure into a rectangle with triangles added and subtracted can be accomplished as follows.
base rectangle = the left 3 columns, 4 units high by 3 units wide = 12 u²
left-side triangle = base of 4 units by height of 1 unit = 1/2(4)(1) = 2 u² (subtracted)
top-side triangle = base of 3 units by height of 1 unit = 1/2(3)(1) = 1.5 u² (subtracted)
right-side triangle = base of 4 units by height of 1 unit = 1/2(4)(1) = 2 u² (added)
bottom-side triangle = base of 2 units by height of 2 units = 1/2(2)(2) = 2 u² (subtracted)
Then the total area is ...
12 u² -2 u² -1.5 u² +2 u² -2u² = (12 -2 -1.5) u² = 8.5 square units
what is the remainder when 1234 is divided by 34
Answer:
10
Step-by-step explanation:
1234 / 34 = 1224
1234 - 1224 = 10
The remainder = 10
PLEASE HELP!! I keep getting bots or trolls
How can you restrict the domain of the function f(x) = |x + 4| − 2 so the range of the inverse function, f -1(x), is [-4, ∞)?
A.
x ≥ 4
B.
x ≥ -4
C.
x ≥ 0
D.
x < 4
E.
x ≥ -2
Answer:
a
Step-by-step explanation:
Kayla has $275 in her bank account. She withdrew $15 each week to go shopping. What’s her slope and y-intercept?
Answer:
slope:-15
Y-intercept: 275
Step-by-step explanation:
say “x” is how many weeks have passed. Every week the total amount is less by 15. So that would be your slope. For the y-intercept, it says that Kayla starts with $275 in her bank account. So after 0 weeks, there is $275 there. This means that 275 is your y-intercept.
help me asap. my exam is tomorrow.
The total surface area of the doghouse is 1452 ft²
What is surface area?The area occupied by a three-dimensional object by its outer surface is called the surface area.
The dog house has many surfaces including the roofs . The total surface area is the sum of all the area of the surfaces.
area of the roof part = 2( 13×11) + 2( 12× 10)×1/2
= 286 + 720
= 1006 ft²
surface area of the building
= 2( lb + lh + bh) -bh
= 2( 10× 11 + 10×8 + 11×8) - 10×11
= 2( 110+80+88)-110
= 2( 278) -110
= 556 -110
= 446ft²
The total surface area = 1006 + 446
= 1452 ft²
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