Pressure = Force/Area
According to question, we have
18 = Force/4
force = 72 N
One solution each is given for four quadratic equations. Assuming that each quadratic equation has two solutions, what is the second solution for each equation?.
For the quadratic equation other solution is given by :
x = 4-5i other solution is x = 4 + 5i
x= 5 + 4i other solution is x = 5 -4i
x = -5 -4i other solution is x = -5 + 4i
x = -4 + 5i other solution is x = -4 -5i
As given in the question,
Number of quadratic equations mentioned = 4
Given one solution for each quadratic equation is given by:
x = 4-5i
x= 5 + 4i
x = -5 -4i
x = -4 + 5i
In standard form:
if the one of the solution of quadratic equation is in complex form x + iy then other solution is given by its conjugate x - iy.
Hence,
Other solution are given by :
x = 4-5i other solution is given by its conjugate x = 4 + 5i
x= 5 + 4i other solution is given by its conjugate x = 5 -4i
x = -5 -4i other solution is given by its conjugate x = -5 + 4i
x = -4 + 5i other solution is given by its conjugate x = -4 -5i
Therefore, for the quadratic equation other solution is given by :
x = 4-5i other solution is x = 4 + 5i
x= 5 + 4i other solution is x = 5 -4i
x = -5 -4i other solution is x = -5 + 4i
x = -4 + 5i other solution is x = -4 -5i
The complete question is:
One solution each is given for four quadratic equations. Assuming that each quadratic equation has two solutions, what is the second solution for each equation?.
x = 4-5i
x= 5 + 4i
x = -5 -4i
x = -4 + 5i
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Yusuf sat 8 examinations.
Here are his marks for 5 of the examinations.
68 72 75 77 80
For his results in all 8 examinations
the mode of his marks is 80
the median of his marks is 74
the range of his marks is 16
Find Yusuf’s marks for each of the other 3 examinations.
Yusuf remaining observations, considering the statistical measures, are given as follows:
64, 73, 80.
What are the statistical measures in this problem?There are four statistical measures used in this problem, which are:
Median.Mode.Range.The mode is the observation that appears the most times, hence one of the remaining observations is of 80.
The median is the middle value of the data-set, which is the value of which 50% of the measures are less than and 50% of the measures are greater than.
In this problem, the data-set has an even cardinality, hence the median is the mean of the 4th and of the 5th element, hence, considering the median of 74, the missing element is given as follows:
(x + 75)/2 = 74.
x + 75 = 148
x = 73.
The range is the difference between the largest value and the smallest value in the data-set.
Considering the range of 16 and the highest value of 80, the remaining value is given as follows:
80 - x = 16
x = 80 - 16
x = 64.
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There are 10 factory managers. Eighty percent of employees are not managers. How many employees does the factory have?
what's the answer of this please say
Answer:
Below
Step-by-step explanation:
See diagram below....you are looking for 'x' in the right triangle
Use Pythagorean Theorem :
5^2 + x^2 = 13 ^2
x ^2 = 13^2 - 5^2
x ^2 = 144
x = 12 m
Identity the domain and the range of each function
a) Domain={2,3,4,5,6}, Range={0,1,2,3,4}
b)Domain={-3,-1,1,3,4}, Range={1,3,-2,2,6}
What are the domain and range of a function?
The range of values that we are permitted to enter into our function is known as the domain of a function. In a function like f, this set represents the x values (x). The collection of values that a function can take on is known as its range. The values that the function outputs when we enter an x value are in this set.
a) Domain is the set of x values:
x={2,3,4,5,6}
The range is the set of y values:
y={0,1,2,3,4}
b) Domain is the set of x values:
x={-3,-1,1,3,4}
The range is the set of y values:
y={1,3,-2,2,6}
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Solve five-ninths minus two-sixths equals my answers are 8/36 20/54 6/3 3/1
I think it is 2/9ths? Look it up on a calculator to check
Let w be the vector with initial point (2,0) and terminal point (3,2). Let v be the vector with initial point (2,2) and terminal point (0,I). Find the sum of these vectors: w+v. A. (3.5) B. (5.3 С. (-1,1 D. (LI) F. None of these
The vectors combined sum is equal to (-1, 1)
Given data;
Let 'w' be the vector with an initial point (2,0) and terminal point (3,2).
Let 'v' be the vector with the initial point (2,2) and terminal point (0,1).
To find the sum of two vectors, firstly;
For 'w';
w = (3 - 2)i + (2 - 0)j
w = i + 2j → (I)
For 'v';
v = (0 - 2)i + (1 - 2)j
v = -2i + j → (II)
Now,
From (I) & (II);
w + v = (i + 2j) + (-2i + j)
= -1, 1
Hence, the sum of the vectors w + v = (-1, 1)
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Here is a diagram of a pentagon.
Calculate the size of angle x
115°
100°
104°
x
Answer:
319 would be the sum
Step-by-step explanation:
Given the function f(x)=3x+1
Evaluate f(-7)=?
f(?)=-17
The amusement park is open from 10:00 A.M. to 6:00 P.M. How many hours could a visitor spend at the amusement park in one day?
write a equation or inequality
the park is open for 8 hours.
Find the equation of a line parallel to -2y = 4 - 2x that passes through the point
(-5,9).
y=x-2
y=-x+14
2x + 2y = 8
2x - 2y = -28
(E) None of these equations of a line is parallel to the equation [-2y = 4 - 2x] and passes through the point (-5. 9).
What is the equation of a line?A straight line's general equation is y = MX + c, where m denotes the gradient and y = c denotes the point at which the line crosses the y-axis.
On the y-axis, this value c is referred to as the intercept.
Y = MX + c represents the equation of a straight line with gradient m and intercept c on the y-axis.
So, first plot the equation [-2y = 4 - 2x] on the graph:
Now, plot all the equations on the graph.
We can now check which equation is parallel to [-2y = 4 - 2x] and passing through the point (-5. 9).
According to the plotting, we can say that no equation is parallel to the equation [-2y = 4 - 2x] and passes through the point (-5. 9).
Therefore, (E) none of these equations of a line is parallel to the equation [-2y = 4 - 2x] and passes through the point (-5. 9).
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Complete question:
Find the equation of a line parallel to -2y = 4 - 2x that passes through the point.
(-5,9).
A. y=x-2
B. y=-x+14
C. 2x + 2y = 8
D. 2x - 2y = -28
E. None of these
which of the following cannot be determined using only the information in the database? responses the date when a certain movie was purchased the greatest number of times the date when a certain movie was purchased the greatest number of times the number of movies purchased by an individual subscriber for a particular month the number of movies purchased by an individual subscriber for a particular month the total number of cities in which a certain movie was purchased the total number of cities in which a certain movie was purchased the total number of movies purchased in a certain city during a particular month
Answer: The answer would be B, The number of movies purchased by an individual subscriber for a particular month.
Step-by-step explanation:
Looking at the problem and graph it can be determined there is a day and date purchased. But there isn't a time frame over the course of a few months.
Using only the information in the database, we can conclude that the answer will be B, The number of movies purchased by an individual subscriber for a particular month.
There is a day and date purchased, it can be seen by looking at the problem and graph. But there isn't a timeline that spans several months. A graph is a diagram or visual representation that organizes the presentation of facts or values. The points on a graph are typically used to depict the relationships between two or more things. A straightforward two-dimensional graph is created when a vertical and horizontal line join at the origin. The y axis is vertical and the x axis is horizontal. In simple line graphs, the x and y axes are divided into evenly spaced subdivisions and assigned integer values.
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A farmer wants to build a rectangular pen with 80 feet of fencing. The pen will be built against the wall of the barn, so one side of the rectangle won't need a fence. What dimensions will maximize the area of the pen? Find length and width.
10% more than 4 is what
Answer: 4.4
Step-by-step explanation:
First, know that 10% is equal to 0.1. Calculate 10% of 4 and add that to 4 to find the final value:
[tex]4+4*0.1=4+0.4=4.4[/tex]
Answer: 14
Step-by-step explanation:
What is 10 more than 4 We are looking for a new number which is 10 more than 4 We will get the new number by adding 10 to 4 We write it down as: 4+10=14
im so confused please help :(
Brianna and Gavin used partial quotients to show 552 divided by 23
Briannas work:
Step 1: Subtract (20×23) from 552 to get 92.
Step 2: Subtract (4×23) from 92 to get 0.
Step 3: Add partial quotients.
Gavins work:
Step 1: Subtract (10×23) from 552 to get 322.
Step 2: Subtract (10×23) from 322 to get 92.
Step 3: Subtract (2×23) from 92 to get 46.
Step 4: Subtract (2×23) from 46 to get 0.
Step 5: Add the partial quotients.
Which student(s) correctly calculated the quotient? Explain your answer
Answer:
Both are correct. Gavin just took more steps to get his answer.
Step-by-step explanation:
Briana's work:
20x23=460
522-460=92
4x23=92
92-92=0
24x23=552
Gavin's work:
10 x 23=230
552-230=322
10x23=230
322-230=92
2x23=46
92-46=46
46-46=0
24x23=552.
Hope this helps :)
Ron wins £1 1/4 million. He gives 3/5 million to his daughter and £1/3 million to his wife. How much does he have left?
Answer:
0.31
Step-by-step explanation:
1 1/4 - 1/3 - 3/5 = 19/60
≅ 0.3166667
A vehicle factory manufactures cars. The unit cost C (the cost in dollars to make each car) depends on the number of cars made. If cars are made, then the unit cost is given by the function C(x)=0.9x^2 - 414x + 59,366. What is the minimum unit cost? Do not round your answer.
The minimum unit cost of the car is $12232.1
How to determine the minimum unit cost?Given: cost function C(x)=0.9x² - 414x + 59,366
In order to find the minimum point, take the derivative of the cost function:
dC/dx = 2x - 414 (equate to zero and solve for x)
2x - 414 = 0
2x = 414
x = 414/2 = 207
Thus, the minimum point is at x =207
The minimum unit cost can be obtained by substituting x = 207 into the cost equation:
C(x) = 0.9x² - 414x + 59,366
C(207) = 0.9(207)² - 414(207) + 59,366
= 38564.1 - 85698 + 59,366
= $12232.1
Therefore, the minimum unit cost is $12232.1
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A bell-shaped curve that results from a large group of measurements is the basic concept of?
Normal Distribution or central tendency is a bell-shaped curve that is produced by many measurements.
The graphical representation of a normal probability distribution, whose underlying standard deviations from the mean form the curved bell shape, is referred to as having a "bell curve." The variability of data dispersion, in a set of provided values around the mean, is measured using a standard deviation. The highest point on the bell curve is the mean, which is the average of all the data points in the data set or sequence.
A bell-shaped normal distribution graph is referred to as a bell curve.
At the peak of the curve, the mean, mode, and median of the collected data are shown.
The standard deviation of the bell curve reveals how pronounced the bell curve is around the mean.
Bell curves (normal distributions) are extensively used in statistics, particularly when analyzing financial and economic data.
Hence Normal Distribution is the basic concept of bell shaped curve.
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through (3,3) perp to y=-3/8x+4
NEED HELP
By using the equation of the line and the perpendicular line relationship, the equation of the perpendicular line y = (8 / 3) · x - 5
How to determine the equation of a line perpendicular to another line
Mathematically speaking, lines are represented by equations of the form:
y = m · x + b
Where:
x - Independent variabley - Dependent variablem - Slopeb - y-InterceptAnd two lines perpendicular to each other observe the following relationship:
m · m' = - 1
Where:
m - Slope of the original line.m' - Slope of the perpendicular line.First, determine the slope of the perpendicular line by perpendicular line relationship:
m = - 3 / 8
m' = - 1 / (- 3 / 8)
m' = 8 / 3
Second, calculate the intercept of perpendicular line by the equation of the line:
b = y - m · x
b = 3 - (8 / 3) · 3
b = 3 - 8
b = - 5
Third, write the equation of the perpendicular line:
y = (8 / 3) · x - 5
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simplify the expression (4a^2 +2ab) - (2a^2 -ab + b^2) what is the coefficient of the term b^2
In the simplified expression, the coefficient of the term b² is -1.
Order to solve Math OperationsWhen you solve any Math Operations, it is necessary to be attentive to the order of the operations.
First, you should solve the operation insides of Parentheses. After that priority is given to Exponents. Thereon, you can solve multiplication or division operations from left to right. Finally, addition or subtraction from left to right
See the order below
Parentheses Exponents Multiplication or Division from left to right Addition or Subtraction from left to rightThe question gives the expression (4a² +2ab) - (2a² -ab + b²). Therefore, for solving the expression you should follow the order of the math operations.
Remove the Parentheses4a² +2ab -2a² +ab - b²
Add similar terms2a²+3ab-b²
Like, there are no more similar terms. Therefore, you can represent the expression (4a² +2ab) - (2a² -ab + b²) by the expression 2a²+3ab-b².
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Determine if the side lengths could form a triangle. 18 m, 21 m, 39 m
Answer:
No
Step-by-step explanation:
According to the first triangle inequality theorem, the lengths of any two sides of a triangle must add up to more than the length of the third ...
18 + 21 = 38 are not more than 39
Answer:No,the side of lengths 18m,21m and 39m could not form a
Step-by-step explanation:
To form a triangle, the sum of any two sides must be greater than the third side.
here,
18m + 21m = 39m
the sum to two side is equal to third side that is 39m
that's why these three sides cannot form any triangle
2 1/4+2/5÷(−1/2)−1/4
Answer:
i believe its 1.2
Step-by-step explanation:
hopethishelpsya:)
The answer is 6/5.
When the numerator is always higher than or equal to the denominator, the fraction is said to be an improper fraction. When a fraction contains a whole number and a proper fraction is said to be a mixed fraction.
Write the given equation with mixed fraction to an improper fraction,
[tex]2\frac{1}{4}+\frac{2}{5}\div \left(\frac{-1}{2}\right)-\frac{1}{4}=\frac{9}{4}+\frac{2}{5}\div \left(\frac{-1}{2}\right)-\frac{1}{4}[/tex]
When we divide a fraction, we convert division into multiplication by turning the fraction upside down. Here, we convert the division sign before (-1/2) into multiplication by changing this fraction upside down as (-2/1).
Therefore,
[tex]2\frac{1}{4}+\frac{2}{5}\div \left(\frac{-1}{2}\right)-\frac{1}{4}=\frac{9}{4}+\left(\frac{2}{5}\times\left(\frac{-2}{1}\right)\right)-\frac{1}{4}[/tex]
Now using the BODMAS rule, solve the bracket first. Followed by multiplication, addition, and subtraction.
[tex]\begin{aligned}2\frac{1}{4}+\frac{2}{5}\div \left(\frac{-1}{2}\right)-\frac{1}{4}&=\frac{9}{4}-{\frac{4}{5}-\frac{1}{4}\\&=\frac{8}{4}-\frac{4}{5}\\&=\frac{40-16}{20}\\&=\frac{24}{20}\\&=\frac{6}{5}\end{aligned}[/tex]
Therefore, the answer is 6/5.
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The complete question is -
Simply the given expression 2 1/4+2/5÷(−1/2)−1/4
Factor the following expression using the common factor -3 −9z−21y−2.4
The factorization of the expression is -3(1+3z+7y+0.8)
What is factorization?Factorisation of an algebraic expression means writing the given expression as a product of its factors. These factors can be numbers, variables, or an algebraic expression.
To the factor a number means to break it up into numbers that can be multiplied to get the original number.
in the expression, -3 −9z−21y−2.4, it is discovered that -3 is a common factor in all the terms.
Therefore dividing all the terms by -3 and bring -3 out of parentheses we have -3(1+3z+7y+0.8)
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A recipe book shows measurement conversions for ounces to cups. It shows that 4 ounces converts to 0.5 cup and 12 ounces converts to 1.5 cups. Write an equation that shows the proportional relationship between cups and ounces where c represents cups and n represents ounces. c = 0.125n c equals 4 over 0.5 times n n equals 0.5 over 4 times c n = 0.125c
The equation that represents the proportional relationship between cups and ounces is n = 0.125c
The 4 ounce = 0.5 cup
Here we have to use the unitary method
Unitary method is the method of finding the value of the single unit
One ounce = 0.5 / 4
= 0.125
Where c represents the cups and n represents the ounce
Then,
n = 0.125c
Similarly
1.5 cups = 12 ounce
1 cup = 12 / 1.5
= 8 ounce
Then,
c = 8n
Then the the correct equation is n = 0.125c
Hence, the equation that represents the proportional relationship between cups and ounces is n = 0.125c
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Answer:
n = 0.125
Step-by-step explanation:
do not listen to the other answer I don't fell like explaining but I got it correct.
Rewrite the equation so that it does not have fractions, without using decimals (please answer quickly)
Answer:
should be
38 = 9x
Step-by-step explanation
multiply both sides with the least common denominator of the denominator of the fraction (the number below the line).
of the numbers 4 and 6, the least common denominator is 12.
so multiply both sides of the equation by 12.
you will have
12 * (4 - 3/4 x) = 12 * 5/6
simplify and you will get
48 - 9 x = 10
and you can even more simplify it to 9x = 38 or 38 = 9x
Explain what the point mean.
Answer:
(0,0) o girls make 0 bracelets.
(1,4) 1 girl makes 4 braclets
Step-by-step explanation:
relative humidity is a measure, expressed as a percentage, of the amount of water vapor present in air. the following histogram summarizes the relative humidity, at noon, for a random sample of 100 days for a certain city. based on the histogram, which of the following is the best description of the distribution?
The relative humidity is a measure the average amount of vapor in the air and the random sample of 100 days refers the distribution displays a gap with a potential outlier located between 40% and 45%.
Average:
Basically, the mean value which is equal to the ratio of the sum of the number of a given set of values to the total number of values present in the set is known as an average.
Given
Relative humidity is a measure, expressed as a percentage, of the amount of water vapor present in air. the following histogram summarizes the relative humidity, at noon, for a random sample of 100 days for a certain city.
Here we need to find the best description of the distribution
Basically, the relative humidity is a variable expressed as a percentage that represents the amount of water vapor present in air. It can be is used to monitor and predict weather conditions, and it is calculated based on the temperature of the air.
And it is also independent of temperature because a high temperature can have low relative humidity and vice-versa.
While we looking into the given question, there are no observed data values between 45% relative humidity and 55% relative humidity, so there is a gap displayed in the distribution.
Therefore, the value located between 40% and 45% is unusually small when compared with the other data values. And this point are known as outliers that are used to test that it is an outlier would require using the 1.5×IQR rule or using the two standard deviations rule.
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Sports Over the course of his career in major league baseball, Willie Mays hit 58 more than double the number of home runs Roger hit. How many home runs did Mays hit?
I AM IN MIDDLE SCHOOL
thx
Runs scored by Willie Mays is given by the linear equation y = 2x+58.
What is a linear equation?A linear equation is an algebraic equation which is in the form y=mx+b, where m is said to be the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included.
The variables in the preceding equation are x and y, and it is commonly referred to as a "linear equation of two variables."
Let the runs scored by Roger be x.
According to the question, Willie Mays hit 58 more than double the number of home runs Roger hit.
Runs scored by Willie Mays = 2x+58
Let the runs scored by Willie May be y.
Then, y = 2x+58.
Hence, the runs scored by Willie Mays is given by the linear equation
y = 2x+58.
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Find the exact value of CSC(COS^-1(-5/8))
The exact value of CSC(COS^-1(-5/8)) is 8/[tex]\sqrt{39}[/tex].
Given:
= CSC(COS^-1(-5/8))
= 1/sin(cos^-1(-5/8)
we know identity sin(cos^-1(x)) = [tex]\sqrt{1-x^{2} }[/tex]
= 1/[tex]\sqrt{1-(-5/8)^{2} }[/tex]
= 1/[tex]\sqrt{64-25/64 }[/tex]
= 1/[tex]\sqrt{39}[/tex]/8
= 8/[tex]\sqrt{39}[/tex].
Therefore the value of CSC(COS^-1(-5/8)) is 8/[tex]\sqrt{39}[/tex].
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This morning, Ravi's car had 15.04 gallons of fuel. Now, 4.9 gallons are left. How much fuel did Ravi use?
gallons
Answer:
10.49
Step-by-step explanation:
We should solve this by subtracting the total amount of fuel minus the gallons left to find the gallons used.
In other words:
Subtract the total amount of fuel minus the gallons left
[tex]15.04 -4.9[/tex]
Answer:
[tex]10.49[/tex]
I hope this answers your question :)
Note: Make sure you line up the decimal places!!