Addison's error is that the second equation should be 0.25x + 0.10y = 20.70, not 20.75.
What is equation?An equation is a mathematical statement consisting of an expression and an equal sign. It is used to express a relationship between two or more variables, and is often used to solve mathematical problems. An equation can be written in a variety of forms, such as a single line, two lines, or a system of equations. An equation typically contains two elements: an expression and an equality sign. An expression is a combination of terms, such as numbers, variables, and operations.
Addison's error is that the second equation should be 0.25x + 0.10y = 20.70, not 20.75. This is because the total value of the quarters and dimes is $20.70, not $20.75. The second equation should also state that y is equal to x plus 10, not just x.
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Quadrilateral ABCD is a rhombus. If mzCDB = 6y° and mZACB = (2y + 10)°, find the value of y.
Answer: [tex]y=10[/tex]
Step-by-step explanation:
Note that [tex]\angle ACB \cong \angle ACD[/tex] because diagonals of a rhombus bisect the angles from which they are drawn.
Now, because [tex]m\angle DEC=90^{\circ}[/tex] since diagonals of a rhombus are perpendicular, it follows that [tex]m\angle CDB+m\angle ABC=90^{\circ}[/tex].
[tex]6y+2y+10=90\\\\8y+10=90\\\\8y=80\\\\y=10[/tex]
solve for u please: u-5/9=5/6
Supplement of 129° geomitry
You said your solution was (6,32) what is the meaning of this solution in term of the problem
The solution to the equation can be given as;
x = 6
y = 32
What is the solution of the problem?
We have to note that when we solve a problem, the values that we get at the end of the solution of the problem is (x,y). We can see that as we obtain the solutions, we would have to get the values of x and y.
In this case, we have been told that the solution to the problem have been given as (6,32). These are the points that yield the solution to the problem. As such we have;
x = 6
y = 32
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Donna is running around a track. It takes her 3 1/2 minutes to run 1/4 of a lap. If she keeps running at the same speed:
1. How long will it take her to run 5 laps?
2. Rate needed?
3. Unit rate?
4 Interpretation of unit rate?
If Donna is running around a track. It takes her 3 1/2 minutes to run 1/4 of a lap. If she keeps running at the same speed. The time it take her to run 5 laps is: 70 minutes .
How to find the time?1. It takes Donna 3 1/2 minutes to run 1/4 of a lap. So,
it takes her 3 1/2 * 4 = 14 minutes to run 1 full lap.
Thus, it will take her 14 * 5 = 70 minutes to run 5 laps.
2. To find the rate needed, we need to know the time and distance. Since Donna runs 1/4 of a lap in 3 1/2 minutes.
The rate can be expressed as 1/4 lap / 3 1/2 minutes.
3. To find the unit rate, we need to convert the time to a common unit, such as seconds.
So,
3 1/2 minutes = 3.5 * 60
= 210 seconds.
The unit rate will then be 1/4 lap / 210 seconds.
3. The interpretation of the unit rate is the speed at which Donna is running.
Therefore the time it take her to run 5 laps is: 70 minutes .
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for what values of k does the quadractoc eqiation (k 4)x^2 -3kx -4(k-2)=0 have two roots differing by 1
As per the quadratic equation, the value of k is 48 ± 8√26.
The term called quadratic equation is known as the polynomial equation whose highest degree is two
Here we know that the value of the quadratic equation is written as,
=> (k - 4)x² - 3kx - 4(k -2) = 0.
Here we have identified that the given equation is in the form of ax² + bx + c = 0.
Then the value of a = k - 4, b = -3k and c = 4(k-2)
Now, we have to use the quadratic formula to identify the value of k, then it can be written as.
=> (-3k)² - (4 x (k - 4) x 4(k-2))
=> 9k² - ((4k - 16) x (4k - 8))
=> 9k² - (16k² - 32k - 64k + 128)
=> 9k² - 16k² +96k -128 = 0
=> -5k² + 96k - 128 = 0
When we factorize the expression then we get the value of k as,
=> k = 48 ± 8√26.
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1. P = 12 ft, s = 4 ft, b = 4 ft, h=2 ft, 3
sides (base is a triangle)
2. b = 4 in, P = 16 in, s = 12, 4 sides
(base is a square)
3. P = 48 m, b = 12 m, s=12, 4 sides
4. P = 45 yds, b = 15 yds, s=15, h=12,
3 sides
5. b = 6 ft, P = 24 ft, s=6, 4 sides
6. P = 15 ft, b = 5 ft, s=5 ft, h= 4, 3
sides
7. b = 4 in, P = 16 in, s-11, 4 sides
8. P = 40 m, b = 10 m, s-10, 4 sides
9. P = 45 yds, b = 15 yds, s=10, h=8,
3 sides
10. b = 16 ft, P = 64 ft, s=8, 4 sides
11. b = 5 ft, P = 20 ft, s=7, 4 sides
12. P = 45 ft, b = 15 ft, s=10, h=8, 3
sides
13. b 13 in, P = 52 in, s=11, 4 sides
=
14. P = 28 m, b = 7 m, s=8, 4 sides
15. P = 27 yds, b = 9 yds, s=30, h=25,
3 sides
1. The surface area of a triangular pyramid is (P * h) / 2.
So, (12 * 2) / 2 = 12 sq ft
2. The surface area of a square pyramid is B * P / 2.
So, 4 * 16 / 2 = 32 sq in
3. The surface area of a square pyramid is B * P / 2.
So, 12 * 48 / 2 = 288 sq m
4. The surface area of a triangular pyramid is (P * h) / 2.
So, (45 * 12) / 2 = 270 sq yds
5. The surface area of a square pyramid is B * P / 2.
So, 6 * 24 / 2 = 72 sq ft
6. The surface area of a triangular pyramid is (P * h) / 2.
So, (15 * 4) / 2 = 30 sq ft
7. The surface area of a square pyramid is B * P / 2.
So, 4 * 16 / 2 = 32 sq in
What are the values for other questions?8. The surface area of a square pyramid is B * P / 2.
So, 10 * 40 / 2 = 200 sq m
9. The surface area of a triangular pyramid is (P * h) / 2.
So, (45 * 8) / 2 = 180 sq yds
10. The surface area of a square pyramid is B * P / 2.
So, 16 * 64 / 2 = 512 sq ft
11. The surface area of a square pyramid is B * P / 2.
So, 5 * 20 / 2 = 50 sq ft
12. The surface area of a triangular pyramid is (P * h) / 2.
So, (45 * 8) / 2 = 180 sq ft
13. The surface area of a square pyramid is B * P / 2.
So, 13 * 52 / 2 = 338 sq in
14. The surface area of a square pyramid is B * P / 2.
So, 7 * 28 / 2 = 98 sq m
15. The surface area of a triangular pyramid is (P * h) / 2.
So, (27 * 25) / 2 = 675 sq yds
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The complete question goes thus:
Calculate The Surface Area Of Each Pyramid With The Following Values. (P = Perimeter, B = One Side Of The Base, S=Side, H=Height). Number Of Sides Is Given In Each Problem. The First Two Have Hints To Let You Know What The Shape Of The Base Is...
1. P = 12 ft, s = 4 ft, b = 4 ft, h=2 ft, 3
sides (base is a triangle)
2. b = 4 in, P = 16 in, s = 12, 4 sides
(base is a square)
3. P = 48 m, b = 12 m, s=12, 4 sides
4. P = 45 yds, b = 15 yds, s=15, h=12,
3 sides
5. b = 6 ft, P = 24 ft, s=6, 4 sides
6. P = 15 ft, b = 5 ft, s=5 ft, h= 4, 3
sides
7. b = 4 in, P = 16 in, s-11, 4 sides
8. P = 40 m, b = 10 m, s-10, 4 sides
9. P = 45 yds, b = 15 yds, s=10, h=8,
3 sides
10. b = 16 ft, P = 64 ft, s=8, 4 sides
11. b = 5 ft, P = 20 ft, s=7, 4 sides
12. P = 45 ft, b = 15 ft, s=10, h=8, 3
sides
13. b 13 in, P = 52 in, s=11, 4 sides
=
14. P = 28 m, b = 7 m, s=8, 4 sides
15. P = 27 yds, b = 9 yds, s=30, h=25,
3 act
What is the percentage increase from 520 to 800
vanessa purchased a house for $619,900. her house has appreciated by 6% in 7 years, what is the new value of her home
Answer:
Okay, so you want to find 7% of 619,900, and then add that to it.
7% of 619,900 is 43,393.
Now you just add that 6% to the total amount that is was worth.
619,900 + 43, 393 = 663293
The house is worth $663,293.00
Step-by-step explanation:
Hope it helps! =D
Help
Which of the following graphs has a slope of negative two thirds and a y-intercept of 2?
graph of a line passing through the points 0 comma 2 and 3 comma 0
graph of a line passing through the points 0 comma 2 and 2 comma negative 1
graph of a line passing through the points 0 comma 3 and 2 comma 0
graph of a line passing through the points 0 comma 3 and 3 comma 1
The required graph A has a slope of negative two-thirds and a y-intercept of 2. Option A is correct.
What is the slope of the line?The slope of the line is a tangent angle made by line with horizontal. i.e. m = tax where x in degrees.
m = (y₂ - y₁) / (x₂ - x₁)
The graph of lines A has the slope of -2/3 and 2 as,
m = (y₂ - y₁) / (x₂ - x₁)
Put points (0, 2) and (3, 0) in the above expression
m = 0-2/3-0
m = -2/3
And at x = 0 there y = 2
Thus, the required graph A has a slope of negative two-thirds and a y-intercept of 2. Option A is correct.
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ILL GIVE BRAINLIEST
The coordinate grid shows points A through K. What point is a solution to the system of inequalities?
y < −2x + 10
y < 1 over 2x − 2
inequalities: y ≤ −2x + 10 & y > (1/2x) - 2 is a solution to the system of inequalities .
What does co ordinate math entail?
An exact position of a point in the coordinate plane can be demonstrated using a collection of values called coordinates. Definition of a coordinate plane.
An intersection of two perpendicular lines known as the x-axis and y-axis results in a 2D plane known as a coordinate plane.
The points which represents a the solution are: A, C, D and K
See the attached figure.
The given inequalities: y ≤ −2x + 10 & y > 1/(2x − 2)
The given points: A(-5,4), B(4,7), C(-2,7), D(-7,1), E(4,-2),
F(1,-6), G(-3,-10), H(-4,-4), I(9,3), J(7,-4) and K(2,3).
The attached figure represents the graph of the given inequalities.
The shaded area represents the solution of the inequalities.
So, the points lies in the shaded area represents the solution of the inequalities.
So, points A, C, D and K are a solution to the system of inequalities.
If the given inequalities: y ≤ −2x + 10 & y > (1/2x) - 2
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f:x-2x+3 is a mapping defined on the set R of real numbers. Determine the pre-images of (a) 1 (b) -1 (c) 7 (d) -5
F[g(x-1)] has a value of 2x2-4x+9. Applying the multiplication operation to functions and replacing the functions led to the discovery of the answer.
What are Operations on functions?The functions can be added, subtracted, multiplied, or divided in the same manner that we add, subtract, multiply, and divide the terms in a function.
Consider f(x) and g, two functions (x). These are the notations:
To add, use the formula (f+g)(x) = f(x) + g(x)
for subtraction (f-g)(x) = f(x) - g(x)
To multiply, use the formula (fg)(x) = f(x)* g(x)
The division formula is (f/g)(x) = (f(x))/(g(x)).
A function that considers one function to be a component of another function is created when we replace one function for another.
So now, f(g) = 2g-3.
When provided, g = x^2+5
So, g(x-1) = (x-1)^2+5
By changing g's value (x-1)
F[g(x-1)] has a value of 2x²-4x+9. Applying the multiplication operation to functions and replacing the functions led to the discovery of the answer.
F[g(x-1)] has a value of 2x²-4x+9. Applying the multiplication operation to functions and replacing the functions led to the discovery of the answer
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A rectangular field meaure 104 m by 76 m ue a cale of 1 cm to 10m to draw a plan of the field. Find the ditance from the centre pot to a corner flag
The distance from the center point to a corner flag is approximately 6.4 cm on the plan
The length and width of the rectangular field, on a scale of 1 cm to 10 m, can be represented as 104 m / 10 = 10.4 cm and 76 m / 10 = 7.6 cm, respectively. The half of the length is 5.2 cm and the half of the width is 3.8 cm.
To find the distance from the center point to a corner flag, we need to use the Pythagorean theorem. The distance is the square root of the sum of the squares of half the length and half the width:
√(5.2^2 + 3.8^2) = √(27.04 + 14.44) = √41.48
So the distance from the center point to a corner flag is approximately 6.4 cm on the plan.
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At Pharoah’s Palace, a hypothetical Las Vegas casino, management has tampered with the dice. Management modified a standard six-sided die so that the probability of each side is now proportional to the number of spots on the side. [That is, the probability of a 2 is twice the probability of a 1; the probability of a 3 is three times the probability of a 1; etc.]
What is the uncertainty distribution for the number of spots on the up side when the die is thrown? Write down all of the possible outcomes and their probabilities. [Hint: The probabilities must add up to 1.]
Calculate the mean of the uncertainty distribution.
Calculate the standard deviation of the uncertainty distribution.
Suppose that you know all about the casino’s tampering with the dice. Now the casino offers to pay you $1,000 for each spot showing on the up side of a single throw of the die. But the casino will charge you $4,000 for the right to play the game. Would you accept the casino’s offer to play? Why or why not?
The mean of the uncertainty distribution is 3.7
The probability distribution of a random event describes the likelihood of each possible outcome of that event.
In the case of the modified die at Pharaoh's Palace, the management has changed the standard probability distribution so that the probability of each side is proportional to the number of spots on the side.
The possible outcomes are 1, 2, 3, 4, 5, and 6, and their probabilities can be calculated by summing up the probabilities of each side and ensuring that they add up to 1.
The mean of the uncertainty distribution is calculated by taking the sum of each possible outcome multiplied by its probability and dividing by the number of possible outcomes.
In this case, the mean is approximately 3.7.
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please I need help with this math question
Answer:
10,4 ft
Step-by-step explanation:
c^2 = a^2 + b^2
c=12 a= 6
b^2= 144 - 36
= 108
b = 10,4
HELP ASAP PLSSSSSS
What is the equation of the line that is perpendicular to y = 4x + 6 and passes through the point (8, −4)?
y equals negative one-fourth times x minus 2
y equals negative one-fourth times x plus 7
y = 4x − 36
y = 4x + 24
y=-1/4x-2 is the equation of the line that is perpendicular to y = 4x + 6 and passes through the point (8, −4).
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
The slope of perpendicular line will be -1/m
In the equation y = 4x + 6 the slope m is 4
The slope of perpendicular line will be -1/4
Now let us find the y intercept
-4=-1/4(8)+b
-4=-2+b
-2=b
y=-1/4x-2 is the equation of perpendicular line.
Hence, y=-1/4x-2 is the equation of the line that is perpendicular to y = 4x + 6 and passes through the point (8, −4).
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find the change in the density rho of a substance, when the temperature changes by δt . assume βδt≪1 .
The change in the density rho of a substance when the temperature changes by δt is dρ = -β × δt × ρ.
The change in density, dρ, of a substance when the temperature changes by delta_t (δt) can be calculated using the coefficient of thermal expansion, beta (β):
dρ = -β × δt × ρ
Where rho is the original density of the substance. If beta * delta_t is much less than 1 (beta * delta_t << 1), then the change in density can be considered to be small, and the original density can be used in the calculation.
Therefore, the change in density rho is -β × δt × ρ.
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The sum of two integers with different signs is 6. Select all the pairs of integers that fit this description.
Answer:
12 and -6
-4 and 10
Step-by-step explanation:
use synthetic division
f(x)= 2×^3+X^2-8X+5 BY X+3
Answer:
f '(x) =6x² +2x-8+5by
Step-by-step explanation:
Do taller people tend to jump higher? Student researchers investigated this question by measuring the height in inches and standing vertical leap of 74 different students. Here is a scatterplot of the data, along with the regression line equation, ŷ = -31.20+0.70x, where y= vertical jump in inches and x= height in inches. Predict the vertical leap of a student who is 68 inches tall.
Answer:
Yes they do. The vertical leap is -31.27 degrees to the power of the square root of 3.
Step-by-step explanation:
I am also 68 inches so...yeah.
Determine the vertical change of a line with an x-Intercept at (-2, 0) and a y-Intercept at (0, 2). Type a numerical
answer in the space provided. If necessary, use the / key as a fraction bar. Do not type spaces in your answer.
The vertical change of the line is 1 unit and the horizontal change is 1 unit, thus the slope of the line is 1.
What is the equation of the line?The general equation of a line is given below as follows:
y = ax + b
where;
a is the slopeb is the y-interceptThe slope of the line is determined as follows:
Slope = y₂ - y₁/ x₂- x₁
y₂ = 2
y₁ = 0
x₂ = 0
x₁ = -2
Slope = (2 - 0) / (0 -{-2})
Slope = 2/2
Slope = 1
The equation of the line will be:
y = x + 2
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refer to the market for good x. p0=$15, pa=$21, p*=$31, pb=$44, p1=$57, q0=10, q*=30, q1=50, and q2=70. how many units are exchanged when the price is $44?
At a price of $44, 30 units of good x are exchanged. This can be calculated by subtracting the quantity supplied at price $15 (q0=10) and the quantity supplied at price $31 (q*=30) from the quantity demanded at price $44 (q1=50).
At a price of $44, the quantity of good x that is exchanged can be calculated by subtracting the quantity supplied at price $15 (q0=10) and the quantity supplied at price $31 (q*=30) from the quantity demanded at price $44 (q1=50). The quantity supplied at price $15 is 10 units, the quantity supplied at price $31 is 30 units, and the quantity demanded at price $44 is 50 units. Therefore, the quantity exchanged at price $44 is 50 units minus 10 units (q0) minus 30 units (q*) which equals 10 units. Thus, the quantity of good x exchanged at price $44 is 10 units.
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I SERIOUSLY NEED HELP! My homework is due Monday and I have no idea how to solve this: m<2=4x-26, m<3=3x+4
The solution to the given system of inequalities is x belongs to (-1/3, 7).
The system of two inequalities represents two lines in a 2D plane and the solution is the common area between the two lines that satisfies both inequalities. Here's one way to solve this system:
Solve each inequality for x to get the equation of a line:
m<2: 4x - 26 < 2 -> 4x < 28 -> x < 7
m<3: 3x + 4 < 3 -> 3x < -1 -> x < -1/3
Plot both lines on a coordinate plane and shade the region where both inequalities are satisfied.
The solution is the set of all points that satisfy both inequalities and lies in the shaded region, which is x < 7 and x < -1/3. The solution is therefore x < min(7, -1/3) = -1/3 < x < 7.
So, the solution to the system of inequalities is x belongs to (-1/3, 7).
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x-5y=16
4x-2y=-8
what is the value of x and y
find value of each variable
To solve for x, bring the variable to one side, and bring all the remaining values to the other side by applying arithmetic operations on both sides of the equation. Simplify the values to find the result.
Find value of each variable ?
The value of the variable, which is the value the variable name represents, might be categorized as follows: A constant, which is a number that is expressed as: An integer (12) A decimal (12.5) A floating point number (1.25E2).Age, sex, business income and expenses, country of birth, capital expenditure, class grades, eye colour and vehicle type are examples of variables. It is called a variable because the value may vary between data units in a population, and may change in value over time.The value refers to the worth of each digit depending on where it lies in the number. We calculate it by multiplying the place value and face value of the digit.To learn more about variable refers to:
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For the given figure, the value of different angles, x = 122° and w = 90°.
An angle is a shape in planar geometry made up of two rays or lines that have a common termination. The Latin word "angulus," which meaning "corner," is where the English term "angle" originates. The shared termini of two rays are the vertex and the two rays, which are referred to as the sides of an angle, respectively. When two rays meet at a point, they create an angle. The "angle," which is the term used to describe the "opening" between these two rays, is represented by the symbol. Angles are typically expressed as 60°, 90°, etc. and are measured in degrees.
For the given figure,
The value of angle w is 90°.
The value of angle x = 180 - 58 = 122°
The value of 2w - 25 will be = 2 × 90 - 25 = 155°
The value of x + 6 will be = 122 + 6 = 128
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an amount of $31,000 is borrowed for 11 years at 3% interest, compounded annually. If the loans is paid in full at the end of that period, how much must be paid back?
The total amount to be paid back would be $35,731.73.
What is the amount ?The amount is 100 words. Plagiarism is not allowed, so the answer must be original and unique.The amount is unspecified and cannot be determined without further information.
This can be calculated using the formula for compound interest:
A = P(1 + r/n)^nt,
where A is the total amount to be paid back, P is the principal amount (31,000), r is the annual interest rate (3%), n is the number of times the interest is compounded per year (annually in this case), and t is the number of years (11).
Plugging this into the formula, we get:
A = 31000 (1 + 0.03/1)^11
A = 31000 (1.03^11)
A = 31000 (1.357364)
A = $35,731.73
Therefore, the total amount to be paid back would be $35,731.73.
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please help I have 20 points to spare and I will mark you as brainliest
Answer: you have to put -1 1/2 in the first line second one you have to put 1 4/6 in the fourth line of one
Step-by-step explanation if you have 1 4/6 where you see one that goes to 2 you have to count 4 lines and that will be your answer for -1 1/2 first because if you see 1/2 it means that you have to put it on the first one because 1/2 and there are only two numbers and 1/2 so just put it on the first line
Question 1
Consider the equation 2(x + 3) = 14.
Select the correct steps that are used to solve the equation.
Step 1: Select Choice
Step 2: Select Choice
Answer:
Step 1: Divide both sides by 2
Step 2: Subtract both sides by 3
Step-by-step explanation:
Step 1: 2(x + 3) = 14
Step 2: x + 3 = 7
x = 4
26.5 %change to fraction in lowest terms
Answer:
Step-by-step explanation: Step 1: Write down the percent divided by 100 like this: 26.5% = 26.5 / 100
Step 2: Multiply both top and bottom by 10 for every number after the decimal point: ...
Step 3: Simplify (or reduce) the above fraction by dividing both numerator and denominator by the GCD (Greatest Common Divisor) between them.
Find DB if BC = 6 and AD = 5
Answer:
4
Step-by-step explanation:
