Answer:
12
Step-by-step explanation:
EZ!
Plz make sure when you put an answer it is correct I’ll give you brainliest !
Answer:
C. 35 degrees
Step-by-step explanation:
Answer:
35 is your answer 21 plus 51 plus 73 plus 35
Show the family of conics with the same focus
x^2/a^2+C + y^2/b^2+C = 1
is its own orthogonal family of curves.
The original equation and the orthogonal equation are the same, we can conclude that the family of conics with the same focus x^2/a^2+C + y^2/b^2+C = 1 is its own orthogonal family of curves.
To show that the family of conics with the same focus x^2/a^2+C + y^2/b^2+C = 1 is its own orthogonal family of curves, we need to take the derivative of the equation and set it equal to -1/b^2, the slope of the orthogonal line.
First, we take the derivative of the equation with respect to x:
2x/a^2 = -2y/b^2 * dy/dx
Simplifying, we get:
dy/dx = -b^2*x/a^2*y
Now, we set this equal to -1/b^2:
-b^2*x/a^2*y = -1/b^2
Cross-multiplying and simplifying, we get:
x/a^2*y = 1/b^2
Finally, we can rearrange this equation to get:
y = b^2*x/a^2
This equation represents the orthogonal family of curves to the original family of conics. Since the original equation and the orthogonal equation are the same, we can conclude that the family of conics with the same focus x^2/a^2+C + y^2/b^2+C = 1 is its own orthogonal family of curves.
Learn about Conics
brainly.com/question/29767685
#SPJ11
Use x to represent any unknown number
The sum of 8 and a number is 22
Please help school is ending soon!
Two days later, Kelly surveyed the same 13 classmates and found that none of them had been given math homework since she last surveyed them. By how much does the mean of Kelly’s second data set change in comparison with the mean of the data set in her original survey? Explain how to determine the change in the means without calculating the mean of either data set.
Since none of the 13 classmates had been given math homework between the original survey and Kelly's second survey, the sum of the values in the second data set is the same as the sum of the values in the original data set. Therefore, the change in the means can be determined without calculating the mean of either data set by considering the number of data points in each set.
Since both data sets have the same number of data points, the change in the means will be zero. This is because the mean is calculated by dividing the sum of the values by the number of data points, and since the sum of the values is the same in both data sets, the means will also be the same.
In other words, if the mean of the first data set is x, then the sum of the values in the first data set is 13x (since there are 13 classmates), and the sum of the values in the second data set is also 13x (since none of the values have changed). Therefore, the mean of the second data set will also be x, and the change in the means will be zero.
Help pleaseeeee???????????
Answer:
1,410
Step-by-step explanation:
What is PT? I need someone to answer
Answer:
PT = 13
Step-by-step explanation:
First we need to find the value of x
4x + 1 = 6x - 5 Subtract 4x from both sides
4x - 4x +1 = 6x -4x -5
1 = 2x - 5 Add 5 to both sides
1 + 5 = 2x - 5 + 5
6 = 2x Divide both sides by 2
3 = x
Now Find PT
4x + 1
4(3) + 1
12 + 1
13
Jessie served 19 pints of orange juice at her party. How many quarts of orange juice did she serve?
Answer:
9.5
Explanation:
1 pint is 0.5 of a quart so if you multiply 0.5 by 19 it will be 9.5 quarts. Hope this helps..
please, please help me with this!! it’s very important.
The parabola's vertex is located at (-2, 8). The parabola's graph is then depicted below.
Let a be the leading coefficient and the parabola's vertex be the point (h, k). The parabola's equation will therefore be stated as,
y = a(x - h)² + k
The parabola's equation is stated as,
y = -(x + 2)² + 8
The downward-pointing parabola is represented by the negative sign.
The vertex of the parabola is at (-2, 8), according to the equation above. The parabola's graph is then depicted below.
More about the equation of the parabola link is given below.
https://brainly.com/question/20333425
#SPJ1
Can someone Please help me on this easy math problem
Step-by-step explanation:
Equation of a straight line
y = mx + c, m is the slope, and c the intercept
points (3,7) x = 3, y = 7, c = 1
7 = m × 3 + 1
7 = 3m + 1
3m = 7 - 1
3m = 6
m = 6/3
m = 2
The price of a gallon of apple cider is $7.00. The price of eight 4.23-ounce juice boxes is $2.39.
Suppose the juice was instead packaged like the cider. Approximately what is the cost per gallon of the juice?
The Cost of the juice per gallon is the $9.
According to the statement, We have to find that the cost of the juice.
So, For this purpose, we know that the
A cost function may be a mathematical formula wont to used to chart how production expenses will change at different output levels.
From the given information:
The price of eight 4.23 ounce juice boxes is $2.39. we should always know that: 1 Gallon = 128 Ounces and 1 juice boxes = 4.23 ounce
So, juice boxes per gallon = 128/4.23 = 30.26
But the worth of 8 juice boxes is $2.39
The value of 1 gallon = (30.26/8) * 2.39 = 9.04
Then,
the price per gallon of the juice = $9
So, The Cost of the juice per gallon is the $9.
Learn more about cost function here
https://brainly.com/question/2021001
#SPJ9
the builder decided to survey the employees according to their trade. a random sample was selected from each trade.
The builder conducted a survey of employees based on their trades by selecting a random sample from each trade.
In order to gather information about the employees and their specific trades, the builder decided to conduct a survey. To ensure the survey results are representative of the entire employee population, the builder employed a random sampling method. This means that a sample group was selected from each trade, chosen in a way that gives every employee an equal chance of being included in the survey.
Random sampling is a widely used technique in survey research as it helps minimize bias and ensures the sample represents the larger population. By selecting a random sample from each trade, the builder can obtain a diverse range of perspectives and experiences across different trades within the company. This approach allows for a comprehensive understanding of the employees' opinions, needs, and concerns specific to their respective trades.
By conducting a survey based on trades and using random sampling, the builder can gain valuable insights into the workforce's specific dynamics, identify any common issues or areas for improvement, and make informed decisions regarding training, resource allocation, or policy changes to better support each trade within the organization.
Learn more about: Survey
brainly.com/question/31624121
#SPJ11
a state's license plate has 7 characters. each character can be a capital letter (a-z), or a digit except for 0 (1-9). how many license plates are there in which exactly 3 of the 7 characters are digits?
There are 12,842,421,440 license plates in which exactly 3 of the 7 characters are digits which can be solved with the use of combinations.
We want to choose 3 out of the 7 positions to be digits, and we want to choose the digits from the set of digits 1 through 9 (since 0 is not allowed). The remaining 4 positions can be filled with any of the 26 capital letters.
Thus, we have:
number of license plates = (number of ways to choose 3 digit positions) x (number of ways to choose the digits) x (number of ways to fill the remaining positions with letters)
number of ways to choose 3 digit positions = C(7,3) = 35 (where C(n,r) represents the number of combinations of r items chosen from a set of n items)
number of ways to choose the digits = 9 x 9 x 9 = 729 (since each digit can be chosen independently)
number of ways to fill the remaining positions with letters = 26^4 = 456976 (since there are 26 choices for each of the remaining 4 positions)
Putting it all together, we have:
number of license plates = 35 x 729 x 456976 = 12,842,421,440
Therefore, there are 12,842,421,440 license plates in which exactly 3 of the 7 characters are digits.
Learn more about combinations at
brainly.com/question/18820941
#SPJ4
a hummingbird lives in a nest that is 5 meters high in a tree. the hummingbird flies 9 meters to get from its nest to a flower on the ground. how far is the flower from the base of the tree? if necessary, round to the nearest tenth.
The flower is about 10.3 meters away from the base of the tree, rounded to the nearest tenth of a meter. The hummingbird has to fly this distance to get to the flower.
To figure out how far the flower is from the base of the tree, we need to use the Pythagorean theorem. It can be applied when there is a right triangle, which is a triangle with one angle of 90 degrees.Here, the hummingbird's nest is at the top of the tree, and the flower is on the ground. The vertical distance from the nest to the ground is 5 meters. The horizontal distance from the tree trunk to the flower is the distance we want to find.
We'll need to calculate the length of the hypotenuse (the slanted line) of the right triangle in order to determine the distance from the tree to the flower. The hypotenuse's length is found by squaring each of the other sides, adding the results together, and then taking the square root:
hypotenuse=√5^2+9^2
=√25+81 = √106
≈10.3 m
So the flower is about 10.3 meters away from the base of the tree, rounded to the nearest tenth of a meter. The hummingbird has to fly this distance to get to the flower.
To learn more about distance refer :
https://brainly.com/question/15129604
#SPJ11
Solve for y.
y/4= 5.12
Help me please and ty <3
Answer: y = 20.48
Step-by-step explanation:
To get rid of the denominator under the y you must multiply the entire equation by 4.
y = 20.48
That's all :)
Answer:
20.48 :)
Step-by-step explanation:
To find y you need to do 5.12 multiplies by 4 which is 20.48. Hope this helps <3
Use the change of base formula and your calculator to evaluate the logarithm below. Round to the nearest hundredth.
You have the following expression:
\(\text{log}_419\)In order to calculate the previous expression, use the following property:
\(\log _ab=\frac{\log b}{\log a}\)Then, for the given expression, you have:
\(\log _419=\frac{\log 19}{\log 4}\approx2.12\)Hence, the result is approximately 2.12
10. Find the slope of the line.
Answer: y = 1.75x - 1
Step-by-step explanation: The slope of the line is 1.75
Let G be an Abelian group of order 16. Suppose there are elements a and b such that |a| = 161 = 4 but a2 # 62. Determine the isomorphism class of G. =
ℤ₄ ⊕ ℤ₄ or ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂ is the isomorphism class of G.
Given information: Abelian group of order 16, |a| = 4, a² ≠ 1, and b ∈ G.
Let us consider two cases:
Case 1: If |b| = 16
Then, G ≅ ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂
or G ≅ ℤ₈ ⊕ ℤ₂ ⊕ ℤ₂
Case 2: If |b| = 2
Then, G ≅ ℤ₄ ⊕ ℤ₄
Let us consider the first case where |b| = 16:
G ≅ ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂
By the fundamental theorem of finite Abelian groups,
G ≅ ℤ₂^a ⊕ ℤ₂^b ⊕ ℤ₂^c ⊕ ℤ₂^d
Where, a, b, c, d ≥ 0; and a + b + c + d = 4
Now, let us consider that a = 2, b = c = d = 1.
Therefore, G ≅ ℤ₄ ⊕ ℤ₂ ⊕ ℤ₂, which is of order 16 and satisfies the given conditions.
|a| = 4 ⟹ a² = 1, but a² ≠ 6^2
Case 2: If |b| = 2,
G ≅ ℤ₄ ⊕ ℤ₄
By the fundamental theorem of finite Abelian groups,
G ≅ ℤ₄^a ⊕ ℤ₄^b
Where, a, b ≥ 0; and a + b = 4
Now, let us consider that a = 2, b = 2.
Therefore, G ≅ ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂, which is of order 16 and satisfies the given conditions.
|a| = 4 ⟹ a² = 1, but a² ≠ 6^2
Therefore, the isomorphism class of G is ℤ₄ ⊕ ℤ₄ or ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂ ⊕ ℤ₂.
To learn more about isomorphism, refer below:
https://brainly.com/question/31963964
#SPJ11
solve for x
-1 + 6x < 5
\(-1+6x < 5\)
Simplify:
\(6x-1 < 5\)
Add 1 to both sides:
\(6x-1+1 < 5+1\)
\(6x < 6\)
Divide both sides by 6:
\(\dfrac{6x}{6} < \dfrac{6}{6}\)
\(\boxed{x < 1}\)
5 (-x-1)=x+21 - 6xn what is the solution to the following equation
Consider the sequence 2;5;8
1. 1 prove that none of the terms of the sequence are perfect squares
That none of the terms in the sequence 2, 5, 8, 11, ... are perfect squares.To prove that none of the terms in the sequence 2, 5, 8, 11, ... are perfect squares,
we can examine the properties of perfect squares and analyze the terms of the sequence.
A perfect square is a number that can be expressed as the square of an integer. In other words, it is the product of an integer multiplied by itself. Perfect squares are always non-negative integers (including zero).
Let's analyze the terms of the given sequence:
2, 5, 8, 11, ...
We can observe that the sequence starts with 2 and then increments by 3 for each subsequent term.
Now, let's consider perfect squares:
0^2 = 0
1^2 = 1
2^2 = 4
3^2 = 9
4^2 = 16
...
We can see that the perfect squares are increasing with the square of the integer. However, in the given sequence, the terms are increasing permutations by 3 at each step.
Since the sequence does not follow the pattern of perfect squares, we can conclude that none of the terms in the sequence 2, 5, 8, 11, ... are perfect squares.
Learn more about permutations here: brainly.com/question/32661405
#SPJ11
a coin-operated soft drink machine was designed to discharge, on average, 7 oz of beverage per cup. in a test of the machine, 10 cupfuls of beverage were drawn from the machine and measured. the average and sd of the ten measurements were 7.1 oz and 0.12 oz, respectively. assume that the histogram of beverage discharge from this machine roughly follows a normal curve. does this machine discharge more than 7.0 oz or does the difference represent chance variation?
The machine discharge more than 7.0 oz or does the difference represent chance variation is 0.0274
What is meant by variation?
In math, variance refers any difference between the individuals in a species or groups of organisms of any species.
Here we have given that a coin-operated soft drink machine was designed to discharge, on average, 7 oz of beverage per cup. in a test of the machine, 10 cupful's of beverage were drawn from the machine and measured. the average and SD of the ten measurements were 7.1 oz and 0.12 oz, respectively. assume that the histogram of beverage discharge from this machine roughly follows a normal curve.
And we need to find machine discharge more than 7.0 oz or does the difference represent chance variation.
By using the Applet, to find the exact p-value we first need to find P(Z≥2.63) where Z is a t9 random variable.
=> P(Z≥2.63)=0.0137
=> 2×P(Z≥2.63)=0.0274
=> P-value=0.0274
So, the p-value associated with the test is 0.0274
To know more about variance here.
https://brainly.com/question/28107529
#SPJ4
What is the value of the algebraic expression if x=1/2, y = -1 and z=2?Algebraic Expression: 6x (y to the second power z)A. -12B. -6C. 1D. 6
The given expression is
\(6xy^2z\)Replacing the given values, we have
\(6\cdot\frac{1}{2}\cdot(-1)^2\cdot(2)=3\cdot1\cdot2=6\)Hence, the answer is D. 6.The diameter of Circle \(Q\) terminates on the circumference of the circle at \((5,-1)\) and \((-5,1)\). Write the equation of the circle in standard form. Show all of your work.
The equation of the given circle in the standard form is given as x² + y² = 26.
In the question, we are given that the diameter of Circle \(Q\) terminates on the circumference of the circle at \((5,-1)\) and \((-5,1)\).
We are asked to write the equation of the circle in standard form.
The equation of the circle in standard form is given as (x - h)² + (y - k)² = r, where (h, k) is the center of the circle, and r is the radius of the circle.
The center of the circle can be found using the midpoint formula, as the center is the midpoint of the diameter.
Thus, the center is at ( (5 + (-5))/2, (-1 + 1)/2 ) = (0,0).
The length of the diameter can be calculated using the distance formula.
Thus, the length of the diameter of the circle is √((-5 - 5)² + (1 - (-1))²) = √( (-10)² + (2)² ) = √(100 + 4) = √104 = 2√26.
The radius is half the length of the diameter.
Thus, the radius, r = √26.
Now, we have the center (h, k) = (0,0), and the radius, r = √26.
Thus, the equation of the circle in the standard form, (x - h)² + (y - k)² = r ² can be shown as:
(x - 0)² + (y - 0)² = (√26)²,
or, x² + y² = 26.
Thus, the equation of the given circle in the standard form is given as x² + y² = 26.
Learn more about the equation of the circle at
https://brainly.com/question/28192971
#SPJ4
Josh and Bradley each bought a carton of milk. Their cartons were the same except that Bradley's carton was taller than Josh's. Each boy drank 1/4 of his milk carton. Did the each drink the same amount of milk? Explain.
Answer:
No
Because Bradley's carton is taller than Josh's, Bradley would drink more milk.
Let us assume that Bradley carton has 100 quarts . If he drank 1/4, he would drink 25 quarts of milk. If Josh carton is 80 quarts full of milk, he would drink 20 quarts of milk. this example shows that they would not drink the same amount of milk
Step-by-step explanation:
A taller carton would contain more ounces of milk.
Solve the equation. Check your solutions.
∣2x+1∣=∣3x−11∣
To solve this equation, we need to consider two cases, one where 2x + 1 is positive and another where it is negative. We will then solve for x in each case and check our solutions to make sure they satisfy the original equation.
Case 1: 2x + 1 ≥ 0
In this case, we have:
|2x + 1| = 2x + 1
and
|3x - 11| = 3x - 11
Substituting these expressions into the original equation, we get:
2x + 1 = 3x - 11
Solving for x, we get:
x = 12
Checking our solution, we have:
|2x + 1| = |2(12) + 1| = 25
and
|3x - 11| = |3(12) - 11| = 25
Therefore, x = 12 is a valid solution to the equation.
Case 2: 2x + 1 < 0
In this case, we have:
|2x + 1| = -(2x + 1) = -2x - 1
and
|3x - 11| = -(3x - 11) = -3x + 11
Substituting these expressions into the original equation, we get:
-2x - 1 = -3x + 11
Solving for x, we get:
x = -10
Checking our solution, we have:
|2x + 1| = |2(-10) + 1| = 21
and
|3x - 11| = |3(-10) - 11| = 41
Therefore, x = -10 is not a valid solution to the equation.
Therefore, the only solution to the equation |2x + 1| = |3x - 11| is x = 12.
The length of a cell phone is 1.8 1.8 inches and the width is 4.4 4.4 inches. The company making the cell phone wants to make a new version whose length will be 1.17 1.17 inches. Assuming the side lengths in the new phone are proportional to the old phone, what will be the width of the new phone
Name the quadrant or axis where each point lies.
Answer:
T is 1, S is 2, J is 3, D is 4 ... hope that helps : )
Present a quadratic equation in the form ax^2+bx+c=0 where a>1. 1. How many solutions does your quadratic have based on the discriminant? 2. Pick TWO ways to find the specific solutions or show that there is no solution a. Quadratic Formula b. Graphing c. Factoring d. Square Root Property e. Completing the Square
The quadratic equation 2x^2 + 3x – 5 = 0 has two real solutions. The solutions can be found using the quadratic formula: x = 1 and x = -2.5. Factoring is not applicable.
To determine the number of solutions based on the discriminant, we need to calculate the discriminant first. The discriminant (denoted as Δ) is given by the formula: Δ = b^2 – 4ac.
In our equation, a = 2, b = 3, and c = -5. Plugging these values into the formula, we have Δ = (3)^2 – 4(2)(-5) = 9 + 40 = 49.
Since the discriminant is positive (Δ > 0), we know that the quadratic equation has two distinct real solutions.
Now, let’s explore two methods to find the specific solutions of the quadratic equation:
a. Quadratic Formula: The quadratic formula is given by x = (-b ± √Δ) / (2a). Plugging in the values from our equation, we have:
X = (-3 ± √49) / (2 * 2)
X = (-3 ± 7) / 4
This gives us two solutions:
X1 = (-3 + 7) / 4 = 4 / 4 = 1
X2 = (-3 – 7) / 4 = -10 / 4 = -2.5
Therefore, the solutions to the quadratic equation 2x^2 + 3x – 5 = 0 are x = 1 and x = -2.5.
b. Factoring: Factoring the quadratic equation involves finding two binomials that multiply to give the quadratic equation. However, in this case, the equation 2x^2 + 3x – 5 cannot be factored nicely into two binomials with integer coefficients. Therefore, factoring cannot be used to find the solutions.
Based on the available options, we have used the Quadratic Formula (option a) to find the specific solutions.
Learn more about Quadratic equations here: brainly.com/question/29011747
#SPJ11
Angie was given the system of equations. Angie’s work is shown in the table.
7x+y=−12
7x+4y=−6
Where did Angie make an error? Justify your answer.
Step 1; because she should have multiplied the second equation by -1.
Step 2; because she should have eliminated the y-value.
Step 3; because she used substitution incorrectly.
Step 4; because the solution is (2,-26).
Angie made an error because she used substitution incorrectly in step 3.
System of equation7x + y =−12
7x + 4y = −6
subtract equation(i) from (ii) to eliminate x
Therefore,
3y = 6
y = 6 / 3
y = 2
Therefore,
7x + 2 = -12
subtract 2 from both sides of the equation
7x = -12 - 2
7x = - 14
x = - 14 / 7
x = -2
(-2, 2)
Therefore, Angie use substitution incorrectly in step 3.
learn more on system of equation here: https://brainly.com/question/1818941
Mary buys hamburger buns in packs of 8 for $3. Mary has only $30 to spend. How many packs
of hamburger buns can she buy?
answer:
10 packs
Step-by-step explanation:
just do 30/3 and you get the answer!!!
:)
Answer:she can buy 10 packs of hamburger buns of 8 for $3
Step-by-step explanation: