Answer:
c
Step-by-step explanation:
did this test and got a 100
Ned help PLEASE…………………
Answer:
0.82
Step-by-step explanation:
A: area =2( 0.8*0.6*+0.6*1+0.8*1) =2(0.48+0.6+0.8)=2*1.88 =3.76
B:area = 2(1.4*0.5+0.5*1.2+1.4+1.2) =2(0.7+0.6+1.68)=2*2.98=5.96
total 9.72
cost = $6.79* 9.72/80 =$0.82
what does c mean in Ax+By+C=0 in standard form
Answer:
This is an equation of a line in standard form. The "C" is the constant of the equation
Step-by-step explanation:
f(x)=x+7 g(x)=4x^2-9 h(x)=-2x+1 what is the value of h(f(g(2)))
Answer:
- 27
Step-by-step explanation:
Evaluate from the ' inside out ' , that is
Evaluate g(2) then use this value to evaluate f(x) then use this value to evaluate h(x)
g(2) = 4(2)² - 9 = 4(4) - 9 = 16 - 9 = 7, then
f(7) = 7 + 7 = 14 , then
h(14) = - 2(14) + 1 = - 28 + 1 = - 27
For the given central angle, determine the distance traveled along the unit circle from the point (1, 0). 112 degrees
a. 0. 98 units
c. 0. 62 units clockwise
b. 0. 62 units
d. 1. 95 units clockwise
For the given central angle, determine the distance traveled along the unit circle from the point (1, 0). 57 degrees
a. 0. 99 units
c. 57 units
b. 1. 99 units
d. 0. 50 units
For the given central angle, determine the distance traveled along the unit circle from the point (1, 0). -133 degrees
a. 1. 16 units
c. 0. 74 units clockwise
b. 2. 32 units clockwise
d. 0. 74 units
Determine the coordinates of the point on the unit circle corresponding to the given central angle. If necessary, round your results to the nearest hundredth. 215 degrees
a. (-0. 82, 0)
c. (-0. 82, -0. 57)
b. (-0. 57, -0. 82)
d. (1, -0. 57)
Answer:
1. 112 degrees = d 1.95 units clockwise
2.57 degrees = a 0.99 units
3. -133 degrees = b 2.32 units clockwise
4. 215 degrees = c (-0.82, -0.57)
Step-by-step explanation: I guessed on most of them by just looking at the unit circle and proof of their accurracy: just finished the edge practice.
2 over 9 minus 1 over 3 in simplest form
Answer:
2/9 - 1/3 (If you want to solved: -1/9)
Step-by-step explanation:
2 over 9 is 2/9 minus is just - and 1 over 3 is 1/3 so the equation looks like this: 2/9-1/3
To solve this you need to multiply the 1/3 by 3 on both the denominator and numerator: 2/9-3/9
simplify: -1/9
Hope this helps!
the test statistic calculated in the process of a kruskall-wallis test is h.
T/F
The Kruskal-Wallis test is a non-parametric test used to compare three or more independent groups to determine if there is a significant difference between the medians of the groups. The test statistic used in this test is denoted by the letter "H," which is calculated based on the ranks of the data.
True. The test statistic calculated in the Kruskal-Wallis test is denoted by the symbol H, not to be confused with the Shapiro-Wilk test statistic denoted by W. The Kruskal-Wallis test is a non-parametric test used to compare the median ranks of three or more independent groups. The test statistic H is calculated by comparing the between-group sum of squares to the total sum of squares. H follows a chi-squared distribution with degrees of freedom equal to the number of groups minus one. The p-value obtained from the chi-squared distribution is used to determine whether to reject or fail to reject the null hypothesis that there is no significant difference between the groups.
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Explain the approach you would take to verify that the following equation is an identity and why you would choose that approach. Do not actually verify that the equation is an identity
(sin(x) + cos(x))^2 /sin(2x) = csc(2x) + 1
Answer:
Step-by-step explanation:
(-a + (-b)) + (-c) = -(a + b) + (-c)
A:associative
B:commutative
C:distributive
D:opposite of a sum
Answer: c
Step-by-step explanation:
the nth term of a sequence is n²+20
work out the first 3 terms of the sequence
The first 3 terms of the sequence are 21, 24 and 29
Working out the first 3 terms of the sequenceFrom the question, we have the following parameters that can be used in our computation:
n² + 20
This means that
f(n) = n² + 20
The first 3 terms of the sequence is when n = 1, 2 and 3
So, we have
f(1) = 1² + 20 = 21
f(2) = 2² + 20 = 24
f(3) = 3² + 20 = 29
Hence, the first 3 terms of the sequence are 21, 24 and 29
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evaluate
6 (4) - 4 + 2
A. 12
B. 22
C. 39
Answer:
B) 22
Step-by-step explanation:
6(4)-4+2
24-4+2
20+2
22
Answer:
B) 22
Step-by-step explanation:
In order: 6*4 is 24. Subtract 4 from that is 20, and then adding 2 to 20 gets you 22.
if x=3 and y=8, then the value of 5xy is
Answer:120
Step-by-step explanation:
given x= 3 and y= 8,
we have to find the value of 5xy
so let us put the values of x and y in the given expression i.e 5xy.2
= 5×3×8
= 120
Hence the value of 5 xy is 120.
Answer:
Step-by-step explanation:
If x = 3 and y = 8, then the value of 5xy is simply 5 times the product of x and y.
To find the product of x and y, we simply multiply x and y together:
xy = 3 * 8 = 24
To find the value of 5xy, we simply multiply 5 by the value of xy:
5xy = 5 * 24 = 120
So the value of 5xy when x = 3 and y = 8 is 120
4. A pizza shop has 12" pizzas with 6 slices and 16" pizzas with slices. Which pizza has bigger slices?
A sample of 1110 observations taken from a population produced a sample proportion of 0.32. Make a 90% confidence interval for p. Round your answers to three decimal places. Enter your answer; confidence interval, lower bound to Enter your answer; confidence interval, upper bound The true population proportion for this population is 0.34. Does the confidence interval constructed cover this population proportion
Yes, we can say that the confidence interval constructed does cover this population proportion is the answer.
A sample of 1110 observations taken from a population produced a sample proportion of 0.32.
Make a 90% confidence interval for p: First, we have to find the critical value of z for a 90% confidence interval: α = 1 - 0.9 = 0.1α/2 = 0.05
From the z-table, the z-critical value for α/2 = 0.05 is 1.645
Now, we can use the formula to find the confidence interval:
Confidence interval = sample proportion ± z * √(sample proportion * (1 - sample proportion) / sample size)
Confidence interval = 0.32 ± 1.645 * √(0.32 * 0.68 / 1110)
Confidence interval = (0.293, 0.347)
The 90% confidence interval for p is (0.293, 0.347).
We can see that the true population proportion of 0.34 is within this interval.
Therefore, we can say that the confidence interval constructed does cover this population proportion.
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calculate the flux of the vector fieldf=(x² y²)k through the disk of radius 10 in the cy-plane, centered at the origin and oriented upward.
The flux of the vector field f=(x² y²)k through the disk of radius 10 in the xy-plane, centered at the origin and oriented upward, is zero.
The flux of a vector field through a surface is given by the surface integral of the dot product of the vector field and the unit normal vector to the surface. In this case, the vector field is f=(x² y²)k, which is pointing in the z direction, and the surface is a disk in the xy-plane of radius 10, centered at the origin, and oriented upward.
The unit normal vector to the disk is pointing in the upward direction, which is the same direction as the vector field. Therefore, the dot product of the vector field and the unit normal vector is always positive, and the surface integral of this dot product over the disk is always positive.
However, the divergence of the vector field f is 2xy, which is not zero. According to the Divergence Theorem, the flux of a vector field through a closed surface is equal to the triple integral of the divergence of the vector field over the enclosed volume. Since the disk is an open surface, we cannot use the Divergence Theorem directly.
Instead, we can use the fact that the flux through any closed surface that encloses the disk is zero. This is because the flux through any closed surface that encloses the disk must be equal to the flux through the disk itself plus the flux through the rest of the closed surface, which is zero because the vector field f is zero everywhere outside the disk.
Therefore, the flux of the vector field f=(x² y²)k through the disk of radius 10 in the xy-plane, centered at the origin and oriented upward, is zero.
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the barrel of a fountain pen, cylindrical in shape , is 7cm long and 5mm in diameter .a full barrel of ink in the pen will be used up in writting up 310 words on an average . how many words would use up on a bottle of ink containing one-fifth of a litre ?answer correct to the nearest 100 words.
Answer:
44 words
Step-by-step explanation:
Step one:
given data
The dimension is
7cm long and = 0.07mm
5mm in diameter
radius= 2.5mm
The volume = πr^2h
Volume= 3.142*2.5^2*0.07
Volume= 3.142*6.25*0.07
volume= 1.4 mm^3
If 1.4 mm^3 will write 310 words on an average
1/5(0.2mm^3) liter will write x
cross multiply we have
x= 0.2*310/1.4
x=62/1.4
x=44 words
Last week, the price of oranges at the farmer's market was $1.75 per pound. This week, the price has decreased by 20%. What is the price of oranges this week?
Type the solution in the box.
The price of oranges this week is $
Answer:
$1.40 per pound
Step-by-step explanation:
You want to know the value that is 20% less that $1.75 per pound.
DiscountThe new price can be figured a couple of ways.
You can figure the amount of change, then subtract that.
$1.75 - 20%×1.75 = $1.75 -0.35 = $1.40
Or, you can figure the percentage that the reduced price is of the original.
$1.75 -20%×1.75 = $1.75(1 -0.20) = $1.75(0.80) = $1.40
The price of oranges this week is $1.40 per pound.
Which of the below is/are equivalent to the statement that a set of vectors (V1 , Vp} is linearly independent? Suppose also that A = [V Vz Vp]: a) A linear combination of V1, _. Yp is the zero vectorif and only if all weights in the combination are zero. b) The vector equation x1V + Xzlz XpVp =O has only the trivial solution c) There are weights, not allzero,that make the linear combination of V1, Vp the zero vector: d) The system with augmented matrix [A 0] has freewvariables: e) The matrix equation Ax = 0 has only the trivial solution: f) All columns of the matrix A are pivot columns.
Statement (b) is equivalent to the statement that a set of vectors (V1, Vp) is linearly independent.
To determine if a set of vectors (V1, Vp) is linearly independent, we need to consider various conditions.
Statement (a) states that a linear combination of V1, Vp is the zero vector if and only if all weights in the combination are zero. This condition is true for linearly independent sets, as no non-trivial linear combination of vectors can result in the zero vector.
Statement (b) asserts that the vector equation x1V1 + x2V2 + ... + x pVp = 0 has only the trivial solution, where x1, x2, ..., xp are the weights. This is precisely the definition of linear independence. If the only solution is the trivial solution (all weights being zero), then the set of vectors is linearly independent.
Statement (c) contradicts the definition of linear independence. If there exist weights, not all zero, that make the linear combination of V1, Vp equal to the zero vector, then the set of vectors is linearly dependent.
Statement (d) and (e) are equivalent and also represent linear independence. If the system with the augmented matrix [A 0] has no free variables or if the matrix equation Ax = 0 has only the trivial solution, then the set of vectors is linearly independent.
Statement (f) is also equivalent to linear independence. If all columns of the matrix A are pivot columns, it means that there are no redundant columns, and hence, the set of vectors is linearly independent.
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Graph the equation then find the solution
By graphing the system of equations, we can see that the solution is (4, -2)
How to solve the system of equations?Here we want to solve the system of equations:
y = (-3/2)*x + 4
y = (1/2)*x - 4
To solve this graphically, we just need to graph both equations on the same coordinate axis and find the point where the lines intersect.
The graph can be seen on the image at the end.
We can see that the solution is (4, -2)
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ion kno how to give my girl her stuff for valentinessss day
Step-by-step explanation:
1 row has 26 tomato plants,
1 row → 26 plants
you have been asked about the total tomato plants Rami has in his garden. you have been given the number of rows (34), and the number of plants per row (26) , thus:
1 row → 26 plants
34 rows → 26 × 34
= 884 plants.
have a good day!
Consider the following scenario to understand the relationship between marginal and average values. Suppose Lorenzo is a professional b. player, and his game log for free throws can be summarized in the following table.
The missing points from the Column is:
Game Free-Throw Percentage: 60 20 60 80
Average Free-Throw Percentage: 70 60 55 56.67
Game Game Total Game Average
Result Free-Throw Free-Throw
Percentage Percentage
1 8/10 8/10 80 80
2 6/10 14/20 60 70
3 1/5 15/25 20 60
4 3/5 18/30 60 55
5 8/10 26/40 80 56.67
In the "Total" column, we keep track of the cumulative number of successful free throws out of the total attempts.In the "Game Free-Throw Percentage" column, we calculate the percentage of successful free throws made in each game.In the "Average Free-Throw Percentage" column, we calculate the average free-throw percentage up to that game by dividing the cumulative successful free throws by the cumulative total attempts and multiplying by 100.Learn more about Cumulative Frequency here:
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The question attached here seems to be incomplete, the complete question is
Fill in the columns with Dmitri's free-throw percentage for each game and his overall free-throw average after each game.
Game Game Result Total Game Free-Throw Percentage Average Free-Throw Percentage
1 8/10 8/10 80 80
2 6/10 14/20
3 1/5 15/25
4 3/5 18/30
5 8/10 26/40
Shane is standing at the base of a truck-mounted stairway to board an aircraft. The stairway begins at the ground. The length of the stairway is
18 feet, and the elevation of the top of the stairway from the ground is 13 feet.
680
OA. 54.16
OB. 35.84
OC 46.24
OD. 43.76
13 feet
What is the approximate angle made by the stairway with the ground?
30
18 feet
Using relations in a right triangle, it is found that the approximate angle made by the stairway with the ground is given by:
D. 43.76.
What are the relations in a right triangle?The relations in a right triangle are given as follows:
The sine of an angle is given by the length of the opposite side to the angle divided by the length of the hypotenuse.The cosine of an angle is given by the length of the adjacent side to the angle divided by the length of the hypotenuse.The tangent of an angle is given by the length of the opposite side to the angle divided by the length of the adjacent side to the angle.This situation can be modeled by a right triangle described as follows:
The opposite side to the angle has a length of 13 feet.The hypotenuse has a length of 18 feet.Hence the angle is found as follows:
\(\cos{\theta} = \frac{13}{18}\)
\(\theta = \arccos{\left(\frac{13}{18}\right)}\)
\(\theta = 43.76^\circ\)
Hence option D is correct.
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Answer:
46.24
Step-by-step explanation:
:)
Please help ASAP!!!Construct the perpendicular bisectors of each side of this triangle. Extend the bisectors until they intersect easy other
A perpendicular bisector is a segment that cut a line in an angle of 90° and cut the line into two equal parts, So a bisector for each side of the triangle is:
Where the green line is a perpendicular bisector that cut the side WY, the red line is a perpendicular bisector that cut the line YX, and the yellow line is a perpendicular bisector that cut the line WX.
Question 3 Find whether the vectorrs are parallel. (-2,1,-1) and (0,3,1)
a. Parallel
b. Collinearly parallel
c. Not parallel
d. Data insufficient
To determine whether the vectors (-2,1,-1) and (0,3,1) are parallel, we need to compare their direction. If they have different directions, they are not parallel. the correct answer is option c) Not parallel.
To check if two vectors are parallel, we can compare their direction vectors. The direction vector of a vector can be obtained by dividing each component of the vector by its magnitude. In this case, let's calculate the direction vectors of the given vectors.
The direction vector of (-2,1,-1) is obtained by dividing each component by the magnitude:
Direction vector of (-2,1,-1) = (-2/√6, 1/√6, -1/√6)
The direction vector of (0,3,1) is obtained by dividing each component by the magnitude:
Direction vector of (0,3,1) = (0, 3/√10, 1/√10)
Comparing the direction vectors, we can see that they are not equal. Therefore, the vectors (-2,1,-1) and (0,3,1) are not parallel. Hence, the correct answer is option c) Not parallel.
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determine the scale factor for triangle abc to prime ^abc
The scale factor for triangle ABC to A'B'C' is 2
How to determine the scale factor?The complete question is in the attached image
From the attached image, we have the following corresponding sides
AC = 4 cm
A'C' = 8 cm
The scale factor is then calculated as:
Scale factor = A'C'/AC
This gives
Scale factor = 8cm/4cm
Evaluate the quotient
Scale factor = 2
Hence, the scale factor for triangle ABC to A'B'C' is 2
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how would a taxpayer calculate the california itemized deduction limitation
Taxpayers in California may need to calculate the itemized deduction limitation when filing their state income taxes. This limitation sets a cap on the amount of itemized deductions that can be claimed, based on the taxpayer's federal adjusted gross income (AGI) and other factors.
Calculating the California itemized deduction limitation involves several steps and considerations to ensure compliance with the state tax regulations. To calculate the California itemized deduction limitation, taxpayers should first determine their federal AGI. This can be found on their federal tax return. Next, they need to identify any federal deductions that are not allowed for California state tax purposes, as these will be excluded from the calculation. Once the applicable deductions are determined, taxpayers must compare their federal AGI to the threshold specified by the California Franchise Tax Board (FTB). The limitation is typically a percentage of the federal AGI, and the percentage may vary depending on the taxpayer's filing status. If the federal AGI exceeds the threshold, the itemized deductions will be limited to the specified percentage. Taxpayers should consult the official guidelines and instructions provided by the California FTB or seek professional tax advice to ensure accurate calculation and compliance with the state tax regulations. Calculating the California itemized deduction limitation is an important step in accurately reporting and calculating state income taxes. It helps determine the maximum amount of itemized deductions that can be claimed, ensuring that taxpayers adhere to the tax laws and regulations of the state.
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Find the area of polygon
Plsss help is for my tmrw finals
The area of each polygon in this problem is given as follows:
a) 252 square units.
b) 65 square units.
How to obtain the area of each polygon?For item a, we have a rectangle of dimensions 12 and 21, hence the area is the multiplication of the dimensions, as follows:
A = 12 x 21 = 252 square units.
For item b, we have a triangle with base 13 and height 10, hence the area is half the multiplication of the base by the height, as follows:
A = 0.5 x 13 x 10 = 65 square units.
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Condense
2loga(4)+3loga(X-4)loga(4)
Log(x+3)+log(x-3)
Answers should be log a x^3/16 and log (x^2-9)
SHOW WORK
URGENT
The steps to condensing the expressions
2loga(4)+3loga(X-4)loga(4)
Log(x+3)+log(x-3) is given below.
To condense the expressions, we can apply the properties of logarithms. Here are the condensed forms of the given expressions.
2loga (4) + 3loga(X - 4) - loga 4 )
By using the product and quotient rules of logarithms, we can simplify this expression as follows
2 loga( 4) + 3 loga( X-4) - log a(4)
= loga(4 ²) + loga((X-4)³) - loga (4) = loga (16 ) + loga((X-4)³) - loga (4)
Combining the logarithms using the power rule and quotient rule we have
= loga(16(X-4)³/4)
log(x+3) + log (x-3)
By using the product rule of logarithms, we can combine these logarithms
log (x +3) +log (x - 3) = log ((x +3 )(x -3 ))
Simplifying further, we get
= log (x² - 9 )
So this means that the condensed forms of the given expressions are
2loga( 4) + 3loga(X -4) - loga (4) = loga(16 (X-4) ³/4)
log (x+ 3) + log(x- 3) = log(x² - 9)
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Find the value of 2x - y when x = -3 and y = -4
Answer:
-2
Step-by-step explanation:
We are given the following;
\(\text{Expression:} \ 2x - y\)\(y = -4\)\(x = -3\)Plug the value of y and x into the expression;
\(\implies 2x - y\)
\(\implies 2(-3) - (-4)\)
Simplify the expression as needed;
\(\implies 2(-3) - (-4)\)
\(\implies -6 + 4\)
\(\implies \boxed{-2}\)
Therefore, -2 is the value of 2x - y, when x = -3 and y = -4.
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Six sophomores and 14 freshmen are competing for two alternate positions on the debate team. which expression represents the probability that both students chosen are sophomores? startfraction (20 c 6) (19 c 5) over 20 c 2 endfraction startfraction (20 p 6) (19 p 5) over 20 p 2 endfraction
The probability expression is \(\frac{^{6}C_2}{^{20}C_2}\)
How to determine the probability expression?The given parameters are
Sophomore = 6Freshmen = 14The total number of people is
n = 20
2 of the 20 people are to be selected.
So, the number of selection is
\(n = ^nC_r\)
This gives
\(n = ^{20}C_2\)
The expression that represents both students being sophomore is
\(n = ^{6}C_2\) --- i.e. 2 students selected from 6
The probability is then represented as:
\(\frac{^{6}C_2}{^{20}C_2}\)
Hence, the probability expression is \(\frac{^{6}C_2}{^{20}C_2}\)
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Answer:
a
Step-by-step explanation:
edge 2023
17+{11-[15-(4+8-3-2)]+1} dau coroana
17+{11-[15-7]+1
17+{11-8}+1
17+3+1
21