The 10(x - x₁) - (y - y₁) - 7(z - z₁) = 0, or 10x - y - 7z = 10x₁ - y₁ - 7z₁. We can write this equation as:10x - y - 7z - 10x₁ + y₁ + 7z₁ = 0or10(x - x₁) - (y - y₁) - 7(z - z₁) = 0Thus, the equation of the plane is 10(x - x₁) - (y - y₁) - 7(z - z₁) = 0, where (x₁, y₁, z₁) is the given point.
Given the line (x - 1) / 10 = y + 5 = (z + 7) / -7, we need to find the equation of the plane passing through a given point and is perpendicular to the line. This line can be written in vector form as r = (1, -5, -7) + t(10, -1, -7).We know that a plane passing through a point (x₁, y₁, z₁) and perpendicular to the line with direction ratios a, b, c has the equation a(x - x₁) + b(y - y₁) + c(z - z₁) = 0.So, let's find the direction ratios of the given line by comparing it with the standard equation of a line. We get:10x - 1 = y + 5 = -7zTherefore, the direction ratios of the line are 10, -1, and -7. Let the point through which the plane passes be (x₁, y₁, z₁). Since we know the direction ratios of the line, the normal to the plane will be the vector n = 10i - j - 7k. The equation of the plane is, therefore, 10(x - x₁) - (y - y₁) - 7(z - z₁) = 0, or 10x - y - 7z = 10x₁ - y₁ - 7z₁. We can write this equation as:10x - y - 7z - 10x₁ + y₁ + 7z₁ = 0or10(x - x₁) - (y - y₁) - 7(z - z₁) = 0Thus, the equation of the plane is 10(x - x₁) - (y - y₁) - 7(z - z₁) = 0, where (x₁, y₁, z₁) is the given point.
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Simplify the expression.
ab – 2ac + cb
Answer:
ab - 2ac + cb
Step-by-step explanation:
This expression cant be simplified
Quadrilateral ABCD is similar to quadrilateral A'B'C'D'. Write a proportion that would have to be true, involving the side lengths of the quadrilaterals
(Hint: use the / key to get fractions!)
The true proportion of the side lengths of the quadrilaterals is A'B'/AB
How to determine the true proportion of the quadrilaterals?From the question, we have the following parameters that can be used in our computation:
Quadrilaterals ABCD and A'B'C'D
These quadrilaterals are similar
So, it means that the corresponding side lengths are proportional
So. we have
Side length = AB
Corresponding side length = A'B'
The true proportion is then represented as
k = Corresponding side length/Side length
Substitute the known values in the above equation, so, we have the following representation
k = A'B'/AB
Hence, the proportion is A'B'/AB
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On saturday, a vending machine company restocked 12 less than 3 time as many machine as it restocked on thurdays. if a company combined total of 228 machines were restocked how many machines were restocked on saturday
i have an emergency pliss
ill give you 100 points
1. The number of machines restocked on Thursday is 60.
2. 168 machines were restocked on Saturday.
Let's call the number of machines restocked on Thursday "x".
According to the problem, the number of machines restocked on Saturday is 12 less than 3 times the number restocked on Thursday, which can be written as:
Saturday machines = 3x - 12
The total number of machines restocked over both days is given as 228, so we can set up an equation:
x + (3x - 12) = 228
Simplifying this equation, we get:
4x - 12 = 228
Adding 12 to both sides, we get:
4x = 240
Dividing both sides by 4, we get:
x = 60
So the number of machines restocked on Thursday is 60.
To find the number restocked on Saturday, we can plug this value back into the equation we came up with earlier:
Saturday machines = 3x - 12
Saturday machines = 3(60) - 12
Saturday machines = 168
Therefore, 168 machines were restocked on Saturday.
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if (5,b-7) lies on x axis, then b=?
Solving a simple linear equation we can see that the value of b is 7.
How to get the value of b?Here we have the point (5, b - 7) and we want to find the value of b such that the point lies on the x-axis.
Remember that a point lies on the x-axis only if the y-value is zero, so we need to solve the linear equation:
b - 7 = 0
Adding 7 in both sides we get:
b - 7+ 7 = 0 + 7
b = 7
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On the previous screen, Irene matched these two cards.
What would you tell Irene to convince her that these cards don’t match?
The thing to tell Irene to convince her that these cards don’t match is that the addition of the variables will not give 4x + 2.
What is an expression?An expression can be used to illustrate the relationship between the variables that are given in the data.
The addition of the variables will be illustrated thus:
x + 2 + x + 2 + x + 2 + x + 2 = 28
4x + 8 = 28
In the question, it was written as 4x + 2 = 28. This shows that it won't match.
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A hotel has 250 units. All rooms are occupied when the hotel charges $90 per day for a room. For every increase of x dollars in the daily room rate, there are x rooms vacant. Each occupied room costs $30 per day to service and maintain. What should the hotel charge per day in order to maximize daily profit?
The hotel should increase the daily room rate by $250 to maximize the daily profit. The optimal room rate would be $90 + $250 = $340 per day.
Let's denote ,
the daily room rate as R (in dollars)
the number of vacant rooms as V.
Since each increase of x dollars in the room rate leads to x vacant rooms, we can express the number of occupied rooms as 250 - x.
The revenue generated from occupied rooms can be calculated as (250 - x) * R, as the number of occupied rooms decreases with an increase in the room rate.
The total cost to service and maintain each occupied room is $30 per day, resulting in a cost of 30 * (250 - x) for the occupied rooms.
The hotel's daily profit is given by the difference between revenue and cost, so we have:
Profit = Revenue - Cost
Profit = (250 - x) * R - 30 * (250 - x)
To maximize profit, we need to find the value of R that maximizes the profit function. We can do this by differentiating the profit function with respect to R and setting it to zero:
d(Profit)/dR = (250 - x) - 30(250 - x) = 0
Simplifying the equation, we get:
250 - x - 7500 + 30x = 0
-29x - 7250 = 0
29x = -7250
x = -250
Since we are looking for a positive value of x, we can disregard the negative solution.
Therefore, the hotel should increase the daily room rate by $250 to maximize the daily profit. The optimal room rate would be $90 + $250 = $340 per day.
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In hours 3 3/8, John reads 4 1/2 chapters.
What is the unit rate in chapters per hour?
Write your answer as a fraction or a mixed number in simplest form.
Answer:
1 1/3 chapters per hour
Step-by-step explanation:
eplaination is in the picture
-10
ious Activity
Type har
-5
10+y
O
-10
-20
5
Select the quadratic inequality that represen
graph.
Ov²(x+3)²-24
vs-(x-3)²+24
v2 - (x-3)2+24
Oys (x+3)²-24
O
The quadratic inequality defined on the graph is given as follows:
y ≥ 2/3(x + 3)² - 24.
How to define the quadratic inequality?The coordinates of the vertex of the quadratic function are given as follows:
(-3, -24).
Hence the quadratic function is given as follows:
y = a(x + 3)² - 24.
In which a is the leading coefficient.
When x = 3, y = 0, hence the leading coefficient a is obtained as follows:
0 = a(3 + 3)² - 24
36a = 24
a = 24/36
a = 2/3.
Hence:
y = 2/3(x + 3)² - 24.
The quadratic function has a solid curve, and the values above it are pained, hence the inequality is given as follows:
y ≥ 2/3(x + 3)² - 24.
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please help me with part two
Answer: 17
Step-by-step explanation:)
DUE BY SATURDAY!! please help
If you want to get rid of a square root, square. Similarily, if you want to get rid of a cube root, cube. You have to do the same thing on both sides. When you are done make the variable the subject.
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 88 people in the 18-21 age bracket and finds that 75 of them respond and 13 refuse to respond. When 286 people in the 22-29 age bracket are contacted, 260 respond and 26 refuse to respond. Assume that 1 of the 374 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who refused to respond.
The probability of getting someone in the 18-21 age bracket or someone who refused to respond is approximately 0.34 or 34%.
To find the probability of getting someone in the 18-21 age bracket or someone who refused to respond, we need to add the probabilities of these two events happening.
First, let's find the probability of getting someone in the 18-21 age bracket. Out of the total 374 people contacted, 88 are in this age bracket. So the probability of getting someone in this age bracket is 88/374.
Next, let's find the probability of getting someone who refused to respond. Out of the total 374 people contacted, 13 in the 18-21 age bracket and 26 in the 22-29 age bracket refused to respond. So the total number of people who refused to respond is 13+26=39. Therefore, the probability of getting someone who refused to respond is 39/374.
Finally, we add these two probabilities to get the probability of getting someone in the 18-21 age bracket or someone who refused to respond:
88/374 + 39/374 = 127/374
total is 0.34% or 34%
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Volume= 27cm3
Density =5 g/cm3
Mass=
Answer:
135g
Step-by-step explanation:
\(\boxed{mass = density \times volume}\)
Given: density= 5g/cm³, volume= 27cm³
Mass
= 5 ×27
= 135g
write of each of the following expressions in the form Ax^m*y^n where A is a real number and m and n are integers: 2x^2*3yx^2
The representation of the expression 2x²×3yx² in terms of A\(x^{m}\)\(y^{n}\)where A is a real number and m and n are integers is 6x⁴y¹.
What is the law of indices?Index (indices) in Maths is the power or exponent which is raised to a number or a variable.
In another word the mathematics of power or exponent of any number is called indices.
As per the given expression, 2x²3yx²
Rearrange the expression as
2x²3yx² = 2×3×x²x²×y
⇒ 6x²⁺²y
⇒ 6x⁴y¹
Hence"In terms of A\(x^{m}\)\(y^{n}\) where A is a real number and m and n are integers, statement 2x²×3yx² is represented as 6x4y.x⁴y¹".
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Which of the following is an equation of the line through 11,3 and7,9
The linear equation for the coordinate points given is obtained as y = -3/2x + 19.5.
What is a linear equation?
A linear equation is one that has a degree of 1 as its maximum value. No variable in a linear equation, thus, has an exponent greater than 1. A linear equation's graph will always be a straight line.
The coordinate points for the lines are (11,3) and (7,9).
The slope-intercept form of an equation/function is - y = mx + b
To find the slope m use the formula -
(y2 - y1)/(x2 - x1)
Substituting the values in the equation -
[9 - 3]/[7 - 11]
(6)/(-4)
3/-2
So, the slope point is obtained as m = 3/-2.
The equation becomes - y = -3/2x + b
To find the value of b substitute the values of x and y in the equation -
3 = -3/2(11) + b
3 = -33/2 + b
b = 3 + 33/2
b = (6 + 33)/2
b = 39/2
b = 19.5
So, the value for b is 19.5.
Now, the equation becomes -
y = -3/2x + 19.5
The graph for the equation is plotted.
Therefore, the equation is obtained as y = -3/2x + 19.5.
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What is the probability of rolling a number less than 4 on a number cube?
Step-by-step explanation:
3/6 is the answer to your question
Lindsey constructs a triangle with one side 3 inches long and another side 9 inches long. Which is not a possible length for the third side?
Answer:
12
Step-by-step explanation:
The sum of any two sides of a triangle must be greater than the third side.
Answer:
hi
Step-by-step explanation:
Could someone explain things like radicals with variables that are raised to powers. plz,
Ill brainliest you. Thanks hers an example: \(\sqrt{x^5}\)
When radicals (square roots) include variables, they are still simplified the same way. We just have to work with variables as well as numbers
1) Factor the radicand (the numbers/variables inside the square root). Factor the number into its prime factors and expand the variable(s).
2) Bring any factor listed twice in the radicand to the outside
what is the inverse of the function y=5x+30?
The inverse of the function is y = ( 1/5 )x - 6.
An expression, rule, or law in mathematics that establishes the relationship between an independent variable and a dependent variable. In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.
Consider the function,
y = 5x + 30
To find the inverse of the function we interchange x and y then find the equation for y.
Therefore, after interchanging x and y:
x = 5y + 30
Subtracting 30 from each side of the equation.
x - 30 = 5y + 30 - 30
x - 30 = 5y
Now, dividing the whole equation by 5
( x - 30 ) / 5 = 5y / 5
y = ( 1/5 )x - 30/ 5
y = ( 1/5 )x - 6
Therefore, the inverse of the function y = 5x + 30 is y = ( 1/5 )x - 6.
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an item is regularly priced at $91 . it is on sale for 35% off the regular price. use the aleks calculator to find the sale price.
The sale price of an item that is regularly priced at $91 and is on sale for 35% off the regular price using the aleks calculator is $59.15.
To calculate the sale price of an item that is regularly priced at $91 and is on sale for 35% off the regular price using the aleks calculator we will follow these steps:
Step 1: Calculate the amount of discount = Regular Price × Discount rate
Discount rate = 35/100
Simplifying the value we have:
Discount rate = 0.35
Amount of discount = 91 × 0.35
Amount of discount = $31.85
Step 2: Calculate the sale price
Sale price = Regular price − Amount of discount
Sale price = $91 − $31.85
Sale price = $59.15
Hence, the sale price of an item that is regularly priced at $91 and is on sale for 35% off the regular price using the aleks calculator is $59.15.
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Sophie has 5 pieces of string that are each 5 1/4 feet long. Cooper has 4 pieces of string that are each
3 7/8 feet long. Estimate how much more string Sophie has than Cooper has. Enter your answer in the box.
about how many feet?
a data analyst is working with the world happiness data in tableau. what tool do they use to select the area on the map representing finland? 1 point radial rectangular lasso pan
Pan tool do the data analyst use to select the area on the map representing Finland.
A data analyst is working with the world happiness data in table. To use Pan tool to select the area on the map representing Finland.
A data professional examines data to uncover critical insights about a company's consumers and how the data may be utilized to address problems. They also share this information with corporate executives and other stakeholders.
Pan allows us to shift the map to focus on it or present the areas in the way we wish. Simply pick the Pan Option and move the map around to suit your needs. Alternatively, you may move the map by holding down the Shift key.
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write 2 5/6 as a fractions
Answer: That is a fraction. As an improper fraction, it's 17/6.
Step-by-step explanation:
Answer:
Now, 2 5/6 is a mixed fraction. To convert a mixed fraction to an improper fraction, we have to calculate (2 + 5/6). 2 + 5/6 = (12 + 5) / 6 = 17/6. Hence, 2 5/6 as a fraction is equal to 17/6.
1. Find the surface area of the cone in terms of pi.
A. 84pi cm
B. 98pi cm
C. 70pi cm
D. 119pi cm
The surface area of the cone is 119π
How to find the surface area of a cone?Surface area of a cone = πr(r + l)
where
r = radiusl = lengthTherefore,
r = 7 cm
l = 10 cm
Hence,
Surface area of the cone = 7π(7 + 10)
Surface area of the cone = 7π(17)
Surface area of the cone = 119π
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Answer: option D. 119
Step-by-step explanation:
surface area of cone =\(\pi\) x r x l + \(\pi\) x r^2
r =7 l =10
pi x 7 x 10 + pi x 7^2
find two numbers whose difference is 160 and whose product is a minimum. (smaller number) (larger number)
The two numbers are -80 and 80, with -80 being the smaller number and 80 being the larger number.
The product of these two numbers is (-80)(80) = -6400, which is the minimum possible value.
Let the two numbers be x and y, where x is the smaller number and y is the larger number.
Then we have:
y - x = 160 (since the difference between the two numbers is 160)
y = x + 160 (adding x to both sides)
We want to find the values of x and y that minimize their product, which is given by:
P = xy
Substituting y = x + 160, we get:
\(P = x(x + 160) = x^2 + 160x\)
To find the minimum value of P, we take the derivative with respect to x and set it equal to zero:
dP/dx = 2x + 160 = 0
Solving for x, we get:
x = -80
Substituting x = -80 into y = x + 160, we get:
y = 80.
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HELP ME
There are 10 people standing in a queue. In how many different ways could they be ordered?
Answer:
Sorry i don't know......!!!!!!!
Step-by-step explanation:
Answer:
362,8800
Step-by-step explanation:
To completely cover a cube,Joey uses a total area of 486 square inches of material. To the nearest whole cubic inch, what is the maximum volume the box could have? Pls help me and fast
Answer:
The maximum volume the cube could have is 729 cubic inches
Step-by-step explanation:
The total surface area of the cube equals the total area of material used.
Let A = total surface area of cube = 6L² where L = length of side of cube
Since A = total area of material used, A = 486 in²
So 486 in² = 6L²
L = √(486 in²/6)
= √81 in²
= 9 in
The volume of the cube V = L³ where L = length of side of cube
So, V = (9 in)³
= 729 in³
So the maximum volume the cube could have is 729 cubic inches.
The maximum volume that the box could have will be 729inches³.
Based on the information given, the first thing to do is to find the length of the shape. This will be:
Length = ✓(486/6)
Length = ✓81
Length = 9
Therefore, the volume of the cube will be:
= 9³
= 9 × 9 × 9
= 729 in³.
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………….. need help filling out
Answer:
dilation is size
Step-by-step explanation:
!!PLS HELP I WILL GIVE BRAINLEST!!
A family-sized box of cereal with dimensions 3x9x12 inches costs $6, while the regular size with
dimensions 2 x 8 x 9 inches costs $4.50. What is the diference in price per cubic inch?
they amount of money are not the same
reason why;
the reason why its not the same is because 2x8x9=144 and 3x9x12=324 and the amount of money spent is different
The difference in price per cubic inch between the two sizes of cereal boxes is $0.0128.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
The volume of the family-sized box of cereal is:
= 3 x 9 x 12
= 324 cubic inches
The volume of the regular-sized box of cereal is:
= 2 x 8 x 9
= 144 cubic inches
The price per cubic inch of the family-sized box is:
= 6 / 324
= 0.0185 dollars per cubic inch
The price per cubic inch of the regular-sized box is:
= 4.50 / 144
= 0.0313 dollars per cubic inch
The difference in price per cubic inch is:
= 0.0313 - 0.0185
= 0.0128 dollars per cubic inch
Therefore,
The difference in price per cubic inch between the two sizes of cereal boxes is $0.0128.
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y=mx+b The fit parameters obtained from the reqression are the slope ( m ) and y-intercept (b). In EXCEL the data was analyzed using the LINEST formula 5 2. An unknown was measured and gave a signal of 80.77. Determine the concentration for the analyte in the unknown using the fit parameters and the linear model. 4.0□[]ppmCo 2+
To determine the concentration of the analyte in the unknown using the fit parameters and the linear model, you need to substitute the given signal value into the equation y = mx + b.
In this case, the linear model is represented by the equation y = mx + b, where:
y is the signal value (80.77 in this case),
m is the slope obtained from the regression analysis, and
b is the y-intercept obtained from the regression analysis.
You haven't provided the values of m and b, so I'll use placeholders for now.
Let's assume the slope (m) obtained from the LINEST formula is m = 2.5 and the y-intercept (b) is b = 10.
Substituting these values into the equation:
y = mx + b
80.77 = 2.5x + 10
To find the concentration (x), we can rearrange the equation:
2.5x = 80.77 - 10
2.5x = 70.77
x = 70.77 / 2.5
x ≈ 28.31
Therefore, based on the given fit parameters and the linear model, the concentration of the analyte in the unknown is approximately 28.31 ppm Co2+.
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Noah has a collection of 2,500 stamps. Of the stamps in Noah’s collection, 30% show U.S. presidents, 45% show animals, and the rest show famous athletes. How many stamps in Noah’s collection show famous athletes?
i need help
Answer:
625 stamps
Step-by-step explanation:
100-45-30=25%
0.25 x 2500 = 625