what is the answer to 3 - (-1)
Answer:
4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
you just subtract -1 from 3 and get the answer
Can someone help me out with this question ( giving brainliest)
Answer:
0.6
Step-by-step explanation:
the reason is because there are 5 different colors of marbles in the bag. it specifically says that each color has the same number of marbles for each color. so that would mean that there is 20% of each color of marble from the bag. its asking for three of the 5 colors. which means you would have a 60% chance of getting one of the colored marbles. which is were i got .6 from
Answer:
option d is a correct answer.....
Why is 1 A common factor of every number?
A number multiplied by 1 is the number itself. So,1 is a factor of every number.
1 is the factor of every number as one divides every number exactly, without leaving any remainder behind, and gives the quotient as the number itself.
1 is the greatest factor of itself and the smallest factor of any other number.
There are some properties of factors one:
Every whole number is the product of 1 and itself so, each number is a factor of itself. Every number is a factor of zero and 1 is the smallest factor of every number, and multiple and the greatest factor of a multiple is the multiple itself.Every number other than 1 has at least two factors, namely the number itself and 1.To know more about common factors:
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Two lines intersect. Find the value of b and c.
bº
42°
Answer:
b=42 degrees
c= 138 degrees
Step-by-step explanation:
B and the 42 degrees shown are congruent angles so therefore both are 42 degrees
To find C: We know that combining the 42 degrees and Angle C would form a flat angle or 180 degree angle, so therefore
subtract 180 with 42 to get Angle C
180-42= 138
Answer:
b=42, c=138
Step-by-step explanation:
B has to equal 42 because b is opposite of the 42º
and since 42+2c+42 has to equal 360, we simplify the expression to get:
84+2c=360,
2c=276
c=138
Probability
Boy Percentage = 55%
Left-handed = 12%
Right-handed = 88%
Girl Percentage = 45%
Left-handed = 9%
Right-handed = 91%
Only need C
C) "What's the probability of a newborn baby being left handed?"
Answer:
25%
Step-by-step explanation:
55 + 12 + 88 + 45 + 9 + 91=300/12=25=25%
Which of the following statistical methods is commonly used in the process of creating a clinical prediction rule?
1)
Analysis of variance to test for differences in outcomes
2)
Frequencies to determine the prevalence of outcomes
3)
Regression analysis to identify the most important predictive factors
4)
Calculation of effect size to determine the magnitude of predictive factors
A statistical method that is commonly used in the process of creating a clinical prediction rule is: Regression analysis to identify the most important predictive factors. The answer is: 3)
When creating a clinical prediction rule, regression analysis is commonly used to identify the most important predictive factors. Regression analysis helps determine the relationship between a set of independent variables (predictors) and a dependent variable (outcome).
By analyzing the coefficients and significance levels of the predictors, regression analysis can identify which factors have the strongest association with the outcome and thus should be included in the prediction rule.
Options 1) Analysis of variance, 2) Frequencies, and 4) Calculation of effect size are not specific methods typically used in the process of creating a clinical prediction rule.
Analysis of variance is used to test for differences between groups, frequencies determine prevalence, and effect size calculates the magnitude of an observed effect. While these methods may be relevant in other statistical analyses, they are not commonly used in the creation of clinical prediction rules.
Hence, the correct option is: 3)
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Use the Venn diagram to calculate probabilities.
Circles A, B, and C overlap. Circle A contains 12, circle B contains 11, and circle C contains 4. The overlap of A and B contains 5, the overlap of B and C contains 3, and the overlap of C and A contains 6. The overlap of the 3 circles contains 8.
Which probabilities are correct? Select two options.
In probability theory, a Venn diagram is a diagrammatic representation of sets that shows all possible logical relations between them. Venn diagrams are widely used in probability and statistics to visualize the relationship between different sets of data.
The given Venn diagram shows the relationship between three sets, A, B, and C. In order to calculate probabilities using a Venn diagram, we need to know the number of elements or members in each set, as well as any overlapping regions.
We can then use these numbers to calculate the probability of different outcomes.Let's consider two possible probabilities from the given Venn diagram:1.
The probability that an element is in set A and set B but not in set C is 0.1/0.5 = 0.22. The probability that an element is in set B or set C but not in set A is 0.2/0.6 = 1/3The first probability can be calculated by dividing the number of elements in the overlapping region of sets A and B (which is 0.1) by the total number of elements in set B (which is 0.5).
This gives us a probability of 0.22 or 22%.The second probability can be calculated by dividing the number of elements in the union of sets B and C (which is 0.2) by the total number of elements in either set B or set C (which is 0.6). This gives us a probability of 1/3 or approximately 33%.
Therefore, the correct probabilities are:1.
The probability that an element is in set A and set B but not in set C is 0.1/0.5 = 0.22.
The probability that an element is in set B or set C but not in set A is 0.2/0.6 = 1/3
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To calculate depletion expense, first determine the depletion per unit. depletion per unit can be calculated by taking (cost ______)/total units of capacity.
To calculate depletion expense, you need to determine the depletion per unit. The depletion per unit can be calculated by taking (cost of the resource) / total units of capacity.
Depletion is an accounting method used to allocate the cost of natural resources over their useful life. It is commonly used in industries such as mining, oil and gas extraction, and timber harvesting, where companies extract and deplete natural resources as part of their operations.
The first step in calculating depletion expense is to determine the cost of the resource. This includes all costs incurred to acquire and develop the resource, such as exploration costs, development costs, and acquisition costs. These costs are typically capitalized and then allocated over the estimated recoverable units of the resource.
Once you have determined the cost of the resource, you need to calculate the total units of capacity. This refers to the estimated amount of resource that can be extracted or harvested from the reserve. For example, in mining, it could be measured in tons of ore, while in oil and gas extraction, it could be measured in barrels or cubic feet.
To calculate the depletion per unit, divide the cost of the resource by the total units of capacity. This will give you the amount of depletion expense that should be recognized for each unit extracted or harvested.
It's important to note that there are different methods for calculating depletion expense, such as units-of-production method and percentage depletion method. The units-of-production method calculates depletion based on actual production or extraction during a given period. On the other hand, the percentage depletion method allows for a fixed percentage deduction from gross income based on statutory rates.
In conclusion, to calculate depletion expense, you need to determine the depletion per unit by dividing the cost of the resource by the total units of capacity. This allows for an appropriate allocation of costs over the useful life of natural resources.
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It's pretty easy... Please help me ASAP and show your work. If I get 2 questions I will mark one person BRAINLIEST. So PLEAASEEEEEEEEEEE
Help on #4, #7, and #8
The given problems are solved:
What is an equation?An equation is a statement that asserts the equality of two expressions, the expressions are written one on each side of an '=' equal to sign.
Question 4:
To calculate angle A,
Consider tan function.
\(tan A=\frac{opposite side }{adjacent side}\)
\(tan A=\frac{9.6}{7.2}\)⇒ 1.34
A= 53.26°
Question 7:
In triangle PQR, ∠Q=80°, PQ=8 and QR= 6,
PR=?
Area of triangle = 1/2 *a*b*sinC
= 1/2*8*6*sin°80
=24*0.984
Area of triangle = 23.616 square units.
Question 8:
Consider the triangle JKL, here two sides and one angle is given,
we can use cosine law,
The equation set us is given by,
\(a^{2} = b^{2}+ c^{2} -2bcCos\alpha\\b ^{2} = a^{2}+c^{2} -2acCos\beta\\ c^{2} = b^{2} +a^{2} -2baCos\gamma\)
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Which equations have the same value of x as Three-fifths (30 x minus 15) = 72? Select three options.
18 x minus 15 = 72
50 x minus 25 = 72
18 x minus 9 = 72
3 (6 x minus 3) = 72
x = 4.5
find a conformal map of the horizontal strip {-a < 1m z < a} onto the right half-plane {rew > o}. hint. recall the discussion of the exponential function, or refer to the preceding problem.
The conformal map from the horizontal strip {-a < Im(z) < a} onto the right half-plane {Re(w) > 0} is given by h(z) = \(e^(πiz / a)\).
What is exponential function?
The exponential function is a function of the form f(x) = \(e^x\), where e is Euler's number (approximately equal to 2.71828) and x is the input variable. The exponential function is commonly used in various areas of mathematics, physics, and engineering due to its fundamental properties.
The exponential function can be used to locate a conformal projection onto the right half-plane Re(w) > 0 from the horizontal strip -a Im(z) a. onto the right half-plane {Re(w) > 0}, we can use the exponential function. The key is to map the strip onto the upper half-plane first, and then apply another transformation to map the upper half-plane onto the right half-plane.
Step 1: Map the strip onto the upper half-plane
Consider the function f(z) = \(e^(πiz / (2a)\)). This function maps the strip {-a < Im(z) < a} onto the upper half-plane.
Step 2: Map the upper half-plane onto the right half-plane
To map the upper half-plane onto the right half-plane, we can use the transformation g(w) = w², which squares the complex number w.
Combining these two steps, we have the conformal map from the horizontal strip onto the right half-plane:
h(z) = g(f(z)) = \((e^(πiz / (2a))\))² = \(e^(πiz / a)\).
Therefore, the conformal map from the horizontal strip {-a < Im(z) < a} onto the right half-plane {Re(w) > 0} is given by h(z) = \(e^(πiz / a)\).
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Use the correct order of operations to solve the problem below.
26 - (5 + 4) - 20 ÷ 4
Answer:
15
Step-by-step explanation:
To solve this question we will be using BIDMAS.
This stands for, Brackets, indices, division, multiplication, addition and subtraction.
As brackets is first, we need to do 5+4, to get 9.
This gives us 26-9-20 divide 4
Next is division so we do 20 divide by 4, to get 5.
This gives us 29-9-5
So now we subtract 9 from 29 to get 20, and 5 from 20 to get 15, which is our final answer.
help pls due in 5 minutes
Answer:
the answer to this is 7 7/10
Answer:
4th option
Step-by-step explanation:
\(5\frac{1}{2}*1 \frac{2}{5}=\frac{11}{2} *\frac{7}{5} =\frac{77}{10}=7\frac{7}{10}\)
The table shows the data about distances and times for 3 runners. Who is the fastest runner
The speed of the runners, obtained by using the equation for speed, which is the ratio of distance traveled to the time it takes, indicates that the fastest runner is Thomas
What is the speed of a body in motion?Speed is the rate at which distance changes with time.
The fastest runner is the one that has the highest ratio of distance to time, which can be found as follows;
\(Speed = \dfrac{Distance}{Time}\)
The distance Caden runs in 6.34 seconds = 60 meters
Therefore, Caden's speed is \(\dfrac{60 \, m}{6.34\, s} \approx 9.46 \ m/s\)
The distance Lorenzo runs in 10.23 seconds is 100 meters, therefore;
Lorenzo's speed is \(\dfrac{100\, m}{10.23 \, s} \approx 9.78 \ m/s\)
The distance Thomas runs in 14.98 seconds is 150 meters, therefore;
Thomas's speed is \(\dfrac{150\ m}{14.98\ s} \approx 10.01 \ m/s\)
The fastest sprinter found from the ratio of the distance a runner runs to the time taken to run the distance, which is the speed of the runner, therefore is Thomas.
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2. A Normal probability plot of a set of data is shown here. Would you say that these measurements are approximately Normally distributed? Why or why not? (10 Marks)
Based on the Normal probability plot provided, it appears that the measurements are approximately Normally distributed.
A Normal probability plot, also known as a quantile-quantile plot (Q-Q plot), is a graphical tool used to assess whether a dataset follows a Normal distribution. In a Normal probability plot, the observed data points are plotted against the corresponding theoretical quantiles of a Normal distribution.
In this case, if the plotted points form a roughly straight line without significant deviations, it indicates that the data closely follows a Normal distribution. The more the points conform to a straight line, the stronger the evidence for Normality.
In the given plot, the points exhibit a linear pattern, indicating that the data aligns well with the Normal distribution. The majority of the points fall along the line, suggesting that the data points are consistent with the expected values of a Normally distributed dataset.
However, it is important to note that there may be some minor deviations or outliers, as evident from a few points slightly deviating from the line. Nonetheless, these deviations are not substantial enough to negate the overall Normality of the measurements.
Therefore, based on the Normal probability plot, we can conclude that the measurements are approximately Normally distributed.
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value of x pls help i cant understand this at all
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.
Answer:
x = 17
Step-by-step explanation:
Since the triangle has 2 congruent legs then it is isosceles and the 2 base angles are congruent , that is
4x - 34 = x + 17 ( subtract x from both sides )
3x - 34 = 17 ( add 34 to both sides )
3x = 51 ( divide both sides by 3 )
x = 17
NEED HELP ASAP!!
Use the function below to find F(3)
please help! with work shown !
Answer:
#10: 5/36
#11: 5/6
Step-by-step explanation:
#10:
The following combinations will get you 6.
1 - 5
2 - 4
3 - 3
4 - 2
5 - 1
These are only 5 of the 36 possible combinations, so you have 5/36 of a chance to get a combo of equal 6.
#11:
Like with #10, list the possible combinations that will get you 7.
1 - 6
2 - 5
3 - 4
4 - 3
5 - 2
6 - 1
That's only six combinations, but we're not including those. Subtract 6 from 36 to get 30. 30/36 simplifies to 5/6 (GCF of 30 & 36 is 6), so that is the answer to #11.
In the given figure, triangle QPS = triangle SRQ.Find each value.
(a) x (b)angle PQS (c)angle PSR
In the given figure, where triangle QPS = triangle SRQ, the value of
a. x = 47°
b. ∠PQS = 32°
c. ∠PSR = 74°
What is a triangle?A triangle is a 3-sided polygon that is occasionally (though not very frequently) referred to as the trigon. Every triangle has three sides and three angles, some of which might be the same.
In a right triangle, the two sides opposite the right angle are referred to as the hypotenuse, and the other two sides are referred to as the legs. All triangles are bicentric and convex. The triangle's interior is that part of the plane it encloses; the exterior is the rest.
Given that ∆QPS ≈ ∆SRQ
a) ∠QPS = ∠QRS
106° = 2x + 12
106° - 12 = 2x
2x = 94°
x = 47°
b) ∠RSQ = ∠PQS
∠SQR + ∠SRQ + ∠RSQ = 180°
42° + 2(47°) + 12 + ∠RSQ = 180°
148 + ∠RSQ = 180°
∠RSQ = 180° - 148°
∠RSQ = 32°
∠PQS = 32°
c) ∠PSR = ∠PSQ + ∠RSQ
[ ∠PSQ = 42° = ∠SQR ; ∠RSQ = 32°]
∠PSR = 42° + 32°
∠PSR = 74°
Thus, In the given figure, where triangle QPS = triangle SRQ, the value of x = 47°, ∠PQS = 32°, ∠PSR = 74°.
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movies and tv shows sometimes portray a person being thrown backwards a sizable distance as a result of being struck by a bullet. let's consider a forensics lab experiment. a 10.0-gram bullet is fired at 45 degrees above the horizontal with a velocity 391 m/s so that it immediately embeds itself into a 74.9-kg wood block that sits on a level floor. the bullet's trajectory is such that the combined mass (block plus bullet) is launched, without any rotation, also at an angle of 45 degrees above the horizontal. neglecting the effects of air resistance, calculate the maximum distance that the block of wood (with embedded projectile) would fly backwards. based on this calculation, evaluate the realism (or lack thereof) of the typical tv/movie portrayal.
The maximum distance that block of wood fly backward as per given mass and velocity is equal to 2.759 × 10⁻⁴ m.
As given in the question,
Mass of the person 'M' = 74.9kg
1kg = 1000grams
Mass of the bullet 'm'= 10 gram
= 0.01 Kg
Initial velocity 'u₁' = 0m/s
Velocity of bullet (initial velocity) 'u₂' = 391m/s
Angle formed with the horizontal = 45°
Apply conservation of Momentum:
M u₁ + m u₂= ( M + m ) V
74.9 x 0 + 0.01 x 391 = (74.9+ 0.01) V
⇒ 3.91 = 74.91V
⇒V = 3.91 /74.91
⇒V = 0.052m/s
acceleration due to gravity 'g' = 9.8m/s²
Maximum distance that block of wood fly
= V²sin²θ/ g
= ( 0.052)² × sin² 45° / 9.8
= 0.002704 × 1 / 9.8
= 0.0002759
= 2.759 × 10⁻⁴ m
Therefore, the maximum distance block of wood fly backward is equal to 2.759 × 10⁻⁴ m.
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BRUH I NEED HELP PLEASE !!!
Enter your answer as a whole number or a fraction in simplest form
Answer:
what was the zoom thing again???
Step-by-step explanation:
A new Community Sports Complex is being built in Del Rio. The perimeter of the rectangular playing field is 528 yards. The length of the field is 6 yards less than quadruple the width. What are the dimensions of
the playing field?
The width is yards.
The length is yards.
Save
The dimensions of the playing field the width is 54 yards and the length is 210 yards.
Given that the perimeter of the rectangular playing field is 528 yards and the length of the field is 6 yards less than quadruple the width.
Let the width of the rectangular playing field is x yards and it is given that the length of the field is 6 yards less than quadruple the width means the length is 4x-6.
As we know that the perimeter of the rectangle is two times the sum of length and breadth so.
P=2(l+w)
As it is given that the perimeter is 528 yards.
So, we will substitute all the values in the formula, we get
528=2(4x-6+x)
528=2(5x-6)
528=10x-12
528+12=10x-12+12
540=10x
540/10=10x/10
54=x
Now, substitute this values in l=4x-6 to find the length, we get
l=4(54)-6
l=216-6
l=210
Hence, the dimension of the playing field when the perimeter of the rectangular playing field is 528 yards is width is 54 yards and length is 210 yards.
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Will mark as branilest and heart if help
Answer:
B
Step-by-step explanation:
as the easiest way to calculate without the help of a calculator ¯\_(ツ)_/¯
John ordered a large three topping pizza for $7.50 and a large 8 topping pizza for $10. write an equation in slope-intercept form to describe the situation. (use fractions) (15 points)
The equation in slope-intercept form to describe the situation is y=(1/2)x - 6
What is slope?
A line's steepness is determined by its slope. In mathematics, the slope is determined by "rise over run" (change in y divided by change in x).
(x1,y1)=(3,7.5)
(x2,y2)=(8,10)
slope m= (y2-y1)/(x2-x1)
= (10-7.5)/(8-3)
= 2.5/5 =(25/10)/5 = 25/50 = 1/2
point slope form:
y-y1=m(x-x1)
y-7.5 = 1/2 (x-3)
y-750/100=1/2 (x-3) =(1/2)x-3/2
On simplifying,
y=(1/2)x - 6
The equation in slope-intercept form to describe the situation is y=(1/2)x - 6
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g(x)= x²-x-12/x²-4x+4
find g(2)
Step-by-step explanation:
g(2)=((2)²-2-12)/((2)²-4(2)+4)
=4-2-12/4-8+4
=-10/0=undefined
when we do _____ data analysis, we rely heavily on plotting the data.
Exploratory data analysis (EDA) is an approach to examining and analyzing data to generate insights, ideas, and hypotheses. It involves a variety of data visualization methods, such as plotting, which help to quickly identify patterns, trends, and outliers in the data.
When we do exploratory data analysis, we rely heavily on plotting the data. Exploratory data analysis (EDA) is an approach to examining and analyzing data in order to generate insights, ideas, and hypotheses that may guide subsequent research.
Exploratory data analysis is a crucial first step in most data analytics tasks, whether in scientific research or business applications. EDA methods are used to gain a better understanding of data characteristics such as distribution, frequency, and outliers. Exploratory data analysis typically involves a variety of data visualization methods, such as plotting, which help to quickly identify patterns, trends, and outliers in the data. EDA techniques can also help to identify important variables, relationships, and potential correlations among data points. By visualizing data in different ways, we can often discover patterns that we might not have seen otherwise, or that we might have overlooked with other techniques.
Therefore, when we do exploratory data analysis, we rely heavily on plotting the data to help us gain insights, find patterns, and identify relationships and correlations among variables.
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an ice chest contains 8 cans of coke, 3 cans of pepsi, and 2 cans of 7up. what is the probability of pulling out an 7up
The probability of pulling out an 7up from the ice chest that contains the different drinks is 2/13.
What is the probability?Probability determines the odds that an event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.
The probability of pulling out an 7up = number of 7ups / total number of drinks
2/(8 + 3 + 2)
2/13
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Help Please Quickly I need help now
Answer:
C) Mrs. Benjamin
C) 9 mrs. Benjamin
What is the sum of the distinct prime factors of the number 560?
A. 20
B. 14
C. 18
D. 16
E. 1488
The sum of the distinct prime factors is (b) 14
How to determine the sum of the distinct prime factorsFrom the question, we have the following parameters that can be used in our computation:
distinct prime factors of the number 560
The distinct prime factors of the number 560 are
Factors = 2, 5, 7.
When these numbers are added, we have
Sum = 2 + 5 + 7
Evaluate
Sum = 14
Hence , the sum is (b) 14
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A survey of statistics undergraduate at prosperity university completed a survey that asked for their verbal and math sat scores. They wanted to predict the verbal score based on the math score. Interpret the slope.
The slope in the context of predicting verbal SAT scores based on math SAT scores indicates the change in the verbal score for each unit increase in the math score.
In this survey of statistics undergraduate students at Prosperity University, the slope represents the rate of change in the verbal SAT score for every one-point increase in the math SAT score. A positive slope suggests that as the math score increases, the verbal score also tends to increase. The magnitude of the slope indicates the strength of the relationship between the two variables. A larger slope indicates a stronger positive association, meaning that a one-point increase in the math score is associated with a larger increase in the verbal score. Conversely, a negative slope would imply an inverse relationship, where an increase in the math score is associated with a decrease in the verbal score.
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What is the interpretation of the slope in the context of predicting the verbal SAT score based on the math SAT score, according to the survey conducted among undergraduate students majoring in statistics at Prosperity University?