On a coordinate plane, the y-axis is labeled imaginary and the x-axis is labeled real. Point Z 1 is (3, 1), Z 2 is (negative 2, negative 5). Point A is at (1, negative 4), B is (5, 5), C is (negative 3, 1), and D is (4, negative 2). A dotted line goes from z 1 to (0, 0), and then down to point z 2. Which point represents z1 + z2?
The sum z1 + z2 gives the point with coordinates (1, - 4), so option A is the correct one.
Which point represents z1 + z2?We know that these two points have the coordinates:
z1 = (3, 1)
z2 = (-2, - 5)
And we want to find the addition of the two points.
To add them, we just need to add the correspondent coordinates:
(3, 1) + (-2, -5) = (3 - 2, 1 - 5) = (1, - 4)
That point is the sum of z1 and z2, and we know that it is the point A, so point A is the correct option.
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What is the population standard deviation?
{5,8,8,5}
Enter your answer as a decimal, rounded to the nearest tenth, like this: 4.2.
5, 8, 8, 5 has a population standard deviation of 3
Given,
The population is
{5, 8, 8, 5}
The population's mean is calculated as follows:
Sum of terms / Number of terms
Calculate the values and then replace them in the equation.
Sum equals 5 + 8 + 8 + 5 = 26
Number of terms = 4
The population's average is 26 / 4 = 6.5
The population's variance is equal to (5 - 6.5)² + (8 - 6.5) (8 - 6.5)² + (8 - 6.5) (8 - 6.5)² + (5 - 6.5)²
= (-1.5) (-1.5)² + (1.5) (1.5)² + 1.5² + (-1.5) (-1.5)²
= 2.25 + 2.25 + 2.25 + 2.25
= 9
The population's standard deviation is equal to
= 3
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Ms. Sunshine is going to bake cookies for her students. She wants each student to receive 2.5 cookies. If she has 25 students in her class, how many cookies does she need to bake?
Answer:
Ms. Sunshine needs to make 62.5 cookies.
Step-by-step explanation:
25 * 2.5 = 62.5
Which expression is equivalent to
Answer:
The answer is the third option
Step-by-step explanation:
When an exponent is raised to the power of another exponent, both exponents are multiplied.
Recall that a number without an exponent is thought to be raised to the power of 1.
So after multiplying the exponents of all of the variables by 4, we are left with a solution identical to the third option.
Whats the correct answer answer asap for brainlist
The sentence that uses the word "obstinancy" incorrectly is: if we eat out too often, its result in obstinancy and poor health. The Option C is correct.
Definition of the word "obstinancy", its uses and example:Obstinancy is a noun that refers to the quality of being stubborn or resolutely unyielding. It describes a person's refusal to change their views, opinions, or actions, even in the face of compelling evidence or persuasive arguments. Example of its use: despite the pleas of his family, the man's obstinancy led him to continue his dangerous lifestyle.
We often use the word "obstinancy" for the followings:
to describe someone's persistence in pursuing a particular course of action despite obstacles or challenges.to describe someone's reluctance to change their opinion or attitude in light of new evidence.to describe someone's refusal to give in to the demands or requests of others.Read more about Obstinancy
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In 1950, a U.S. population
model
was y = 151. (1.013)^t-1950 million
people, where t is the year. What did
the model predict the U.S. population
would be in the year 2000?
In a case whereby In 1950, a U.S. population model was y = 151. (1.013)^t-1950 million people, where t is the year, the model predict the U.S. population would be 288 million in the year 2000.
What is population model ?Population models are mechanical theories that link alterations in population structure and density to responses at the individual level (life history features in eco-evolutionary theory or vital rates in demographic theory).
The model was given as y=151x(1.013)^t-1950
where the future time t = 2000
Then we can substitute the given year 2000 as the value of 't'
then we will have y=[151x(1.013)^(2000-1950)] = 288 million
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3/4x+2-1/3x=12
What is the answer?
Answer:
x=24 or 25
Step-by-step explanation:
90% is x=24
89.999999 repeat% is x =25
Hi please help me with this question
115° is the value of external angle.
Where is exterior angle?
Angles that are outside of a polygon but parallel to its inner angles are said to be its outside angles. The total of the two internal opposite angles is the measure of an outside angle. A triangle's one side is extended to form the triangle's exterior angle.
Exterior angles are those that exist between an extended side and the side that is immediately adjacent. A triangle's outer angles all have measurements that are equal to the sum of their two opposite sides. inner perspectives.
AD ║EG
∠BFC= 75°
∠EFB = 40°
∠FCD = ( 40+75)
= 115°
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URGENT!! ILL GIVE
BRAINLIEST!!!!! AND 100
POINTS!!!!!
Answer:
289 and 324
Step-by-step explanation:
first find the root of 300 then the number you get is 17.3205.... then look in the line and look at the points in between 17 and 18 then find the square root of 17 and you'll get your answer
A company uses a logo shaped like a triangle. The dimensions of the logo are shown in the diagram. What is the area of the logo in square inches?
Area of triangle shape
Area A = BxH/2 = [ 8 x (5+1/2) ]/2
. = 4 x 5.5
. = 22
Then answer is
Area of logo = 22 inches2
OPTION B)
Which point on the grid is located at the coordinates (3,4)
Point a
Point b
Point c
Point d
Which one is it I need help
b) 8xy +4y² factorise
Answer:
The answer is: 4y(2x+y)
Step-by-step explanation:
help asap i need this tomorrow thanks!:)
a) The algebraic fraction \(\frac{{x + 2}}{{(x - 1)^2}}\) is proper. b) The algebraic fraction \(\frac{{4x^2 - 31x + 59}}{{(x - 4)^2}}\) can be expressed as \(-\frac{{31}}{{x - 4}} - \frac{{25}}{{(x - 4)^2}}\).
Let's solve each part step by step and determine whether the fraction is proper or improper, and then express it accordingly.
a) \(\frac{{x + 2}}{{(x - 1)^2}}\):
Step 1: Determine the degree of the numerator and the denominator:
- Degree of the numerator = 1 (linear term)
- Degree of the denominator = 2 (quadratic term)
Since the degree of the numerator is less than the degree of the denominator, the fraction is proper.
Step 2: Express the proper fraction in partial fractions:
\(\frac{{x + 2}}{{(x - 1)^2}} = \frac{A}{{x - 1}} + \frac{B}{{(x - 1)^2}}\).
Step 3: Find the values of A and B:
Multiply both sides of the equation by \(((x - 1)^2)\) to eliminate the denominators:
(x + 2) = A(x - 1) + B.
Expand the equation and collect like terms:
x + 2 = Ax - A + B.
Equate the coefficients of like terms:
Coefficient of x: 1 = A.
Constant term: 2 = -A + B.
Solve the system of equations to find the values of A and B:
From the coefficient of x, A = 1.
Substituting A = 1 into the constant term equation: 2 = -1 + B, we find B = 3.
Therefore, the partial fraction decomposition is:
\(\frac{{x + 2}}{{(x - 1)^2}} = \frac{1}{{x - 1}} + \frac{3}{{(x - 1)^2}}\).
b) \(\frac{{4x^2 - 31x + 59}}{{(x - 4)^2}}\):
Step 1: Determine the degree of the numerator and the denominator:
- Degree of the numerator = 2 (quadratic term)
- Degree of the denominator = 2 (quadratic term)
Since the degree of the numerator is equal to the degree of the denominator, the fraction is proper.
Step 2: Express the proper fraction in partial fractions:
\(\frac{{4x^2 - 31x + 59}}{{(x - 4)^2}} = \frac{A}{{x - 4}} + \frac{B}{{(x - 4)^2}}\).
Step 3: Find the values of A and B:
Multiply both sides of the equation by \(((x - 4)^2)\) to eliminate the denominators:
(4x^2 - 31x + 59) = A(x - 4) + B.
Expand the equation and collect like terms:
4x^2 - 31x + 59 = Ax - 4A + B.
Equate the coefficients of like terms:
Coefficient of \(x^2\): 4 = 0 (No \(x^2\) term on the right side).
Coefficient of x: -31 = A.
Constant term: 59 = -4A + B.
Solve the system of equations to find the values of A and B:
From the coefficient of x, A = -31.
Substituting A = -31 into the constant term equation: 59 = 4(31) + B, we find B = -25.
Therefore, the partial fraction decomposition is:
\(\frac{{4x^2 - 31x + 59}}{{(x - 4)^2}} = -\frac{{31}}{{x - 4}} - \frac{{25}}{{(x - 4)^2}}\).
The above steps provide the solution for each part, including determining if the fraction is proper or improper and expressing it in partial fractions.
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On January 1, Year 1, Jana started a small flower merchandising business that she named Jana’s Flowers. The company experienced the following events during the first year of operation: Started the business by issuing common stock for $43,000 cash. Paid $28,000 cash to purchase inventory. Sold merchandise that cost $20,000 for $42,000 on account. Collected $37,000 cash from accounts receivable. Paid $9,800 for operating expenses. Required a. Organize ledger accounts under an accounting equation and record the events in the accounts. In the last column of the table, provide appropriate account titles for the Retained Earnings amounts. b-1. Prepare an income statement. b-2. Prepare a balance sheet. b-3. Prepare a statement of cash flows. c. Since Jana sold inventory for $42,000, she will be able to recover more than half of the $43,000 she invested in the stock. Do you agree with this statement?
a) The organization of ledger accounts under an accounting equation and journal entries are as follows:
Accounting Equation:Assets = Liabilities + Equity
Cash + Inventory + A/Receivable C.Stock R/Earnings
1. $43,000 $43,000
2. -28,000 $28,000
3. $42,000 42,000 S/Revenue
4. -20,000 -20,000 COGS
5. 37,000 -37,000
6. -9,800 -9,800 Op Exp.
Bal. $42,200 $8,000 $5,000 $43,000 $12,200
Journal Entries:Debit Cash $43,000
Credit Common Stock $43,000
Debit Inventory $28,000
Credit Cash $28,000
Debit Accounts Receivable $42,000
Credit Sales Revenue $42,000
Debit Cost of goods sold $20,000
Credit Inventory $20,000
Debit Cash $37,000
Credit Accounts Receivable $37,000
Debit Operating expenses $9,800
Credit Cash $9,800
b1)
Jana's Flowers
Income StatementFor the year ended December 31, Year 1
Sales Revenue $42,000
Cost of goods sold $20,000
Gross profit $22,000
Operating expenses $9,800
Net income $12,200
b2) Jana's Flowers
Balance SheetDecember 31, Year 1
Cash $42,200
Accounts Receivable $5,000
Inventory $8,000
Total assets $55,200
Common Stock $43,000
Retained Earnings 12,200
Total equity $55,200
b3) Jana's Flowers
Statement of Cash FlowsFor the year ended December 31, Year 1
Net income $12,200
Changes in working capital:
Accounts Receivable (5,000)
Inventory (8,000)
Operating cash flow ($800)
Financing activities:
Common Stock $43,000
Cash flows $42,200
c) I do not agree with this statement. It does not necessarily flow that Jana selling $42,000 in goods will be able to recover more than half of the $43,000 she invested in her business. So far, she has made $12,200 from her investment.
Data Analysis:Cash $43,000 Common Stock $43,000
Inventory $28,000 cash $28,000
Accounts Receivable $42,000 Sales Revenue $42,000
Cost of goods sold $20,000 Inventory $20,000
Cash $37,000 Accounts Receivable $37,000
Operating expenses $9,800 Cash $9,800
Thus, it will take time for Jana to recover her investment in the business.
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Multiply 2+√10 by its conjugate and simplify.
\(\left(2+\sqrt{10} \right)\left(2-\sqrt{10} \right)\\\\=2^2-\left(\sqrt{10} \right)^2\\\\=4-10\\\\=-6\)
Priscilla invested 20,000 at rate of 12% over 5 years. Much to her surprise, her investment paid off, and her account grew by an additional $12,000. What is the principal in this scenario?
The principal in this scenario is $ 8000.
What is simple & compound interest?Simple Interest can be defined as the sum paid back for using the borrowed money, over a fixed period of time.
Compound Interest can be defined as when the sum principal amount exceeds the due date for payment along with the rate of interest, for a period of time.
It is Given that:
Priscilla invested 20,000 that means the total amount she invested.
Amount= $ 20,000
Rate of interest=12%
Time= 5 year
Interest= $12,000.
By the formula;
Amount = principal + Interest
Principal = Amount - Interest
Principal= $ 20,000- $12,000
Principal=$ 8000
Hence, the principal in this scenario is $ 8000.
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whats the volume of this prism
Answer:
V=(22*22)/2*42
=10164 in
For each proof, you must include (i.e., write) the premises in that proof. I do not want to see any proofs without premises. YOU CANNOT USE CONDITIONAL PROOF (CP), INDIRECT PROOF (IP), OR ASSUMED PREMISES (AP). Additionally, use only the 18 rules of inference found in the text and in the notes. If you use an inference rule such as Resolution or Contradiction, you will lose points. 1. 1. C ---> (~D ---> ~X)2. C3. X /D (Note: /D means you have to prove that D validly follows from the premises.)_________________________________________________________________2. 1. A ---> ~B2. B3. ~A ---> (C v ~ B) /C____________________________________________________________________3. 1. A ---> ~D2. ~D ---> (~B v ~~A)3. A4. B /~~A___________________________________________________________________Note:you don't need to use DN and when you have iterated negation signs, do not use parentheses.~~A does not need parentheses.
B is true, so we can conclude ~~A by disjunctive syllogism.
This proof is based on the inference rules you provided.
D Proof: Premises:
C ---> (~D ---> ~X)
The Modus Ponens Rule was used.
Finally, X /D
Explanation: Using Modus Ponens, we can conclude that D ---> X from premises 1 and 2.
Because premise 2 is true, we can conclude X via modus tollens.
We can conclude that D must be false because X is true.
Evidence for C:
Conditions: A ---> B B
Modus Tollens is the rule that was used.
Finally, C / A
Explanation: Using Modus Tollens, we can conclude from premises 1 and 2 that A.
Because A is false in premise 1, we can conclude that B is true.
Because premise 2 is true, we can conclude C using disjunctive syllogism.
Proof for ~~A:
Premises:
A ---> ~D
~D ---> (~B v ~~A)
A
B
Rule used: Modus Ponens
Conclusion:
~~A /B
Explanation:
From premise 1 and 3, using Modus Ponens, we can conclude that ~D.
From premise 2 and ~D, using Modus Ponens, we can conclude that ~B v ~~A.
From premise 4, B is true, so we can conclude ~~A by disjunctive syllogism.
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Please please do these questions it’s due tomorrow.
Inflation is at a rate of 7% per year. Today Janelle's favorite bread costs $3.79
What would it have cost ten years ago?
Answer: $1.92??
Step-by-step explanation:
Determine the amplitude of function
The amplitudes of functions are a) 8 and b) 6.
Given are the functions we need to determine the amplitude of function,
a) y = 8 Sin (x/2) + 3
b) y = 6 Cos x + 2
So,
To determine the amplitude of a trigonometric function, you can follow these steps:
For a sine function of the form y = A×sin(Bx + C) + D:
The amplitude is equal to the absolute value of the coefficient A.
For a cosine function of the form y = A×cos(Bx + C) + D:
The amplitude is equal to the absolute value of the coefficient A.
Let's apply these steps to the given functions:
a) y = 8×sin(x/2) + 3
The coefficient of sin in this function is 8, so the amplitude is |8| = 8.
Therefore, the amplitude of function a) is 8.
b) y = 6×cos(x) + 2
The coefficient of cos in this function is 6, so the amplitude is |6| = 6.
Therefore, the amplitude of function b) is 6.
Hence the amplitudes of functions are a) 8 and b) 6.
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Find the length of the third side. If necessary, write in simplest radical form.
2√34, 6
The length of the third side is 2√34 + 6.
We can use the triangle inequality theorem to solve this problem. According to the theorem, the sum of any two sides of a triangle must be greater than the length of the third side.
Let x be the length of the third side. Then we have:
2√34 + 6 > x
Subtracting 6 from both sides, we get:
2√34 > x - 6
Adding 6 to both sides, we get:
x < 2√34 + 6
Therefore, the length of the third side must be less than 2√34 + 6.
To find the exact length of the third side, we need to check if the triangle inequality is satisfied for an equality. In other words, we need to check if:
2√34 + 6 = x
If this is true, then the given sides can form a triangle.
Simplifying the equation, we get:
x = 2√34 + 6
The exact length is 2√34 + 6 if the triangle inequality is satisfied for an equality.
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If Oscar the ostrich travels 105 miles in 3 hours on land, how fast does he travel?
Consider the algebraic expression √ 7 x 18 + 12.1 x 15 + π 4 x 6 + 1 9 . What is the degree of this polynomial? Identify the leading coefficient. Identify the leading term.
The degree of the provided polynomial is 18, and the leading term is √7.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
We have given an expression:
\(= \rm \sqrt{7}x ^{18} + 12.1x^{ 15} + \pi 4 x^ 6 + 1 9\)
As we can see in the expression the greatest degree is 18.
So the degree of the polynomial is 18
And the coefficient of the variable which has a height degree is the leading term.
The leading term = √7
Thus, the degree of the provided polynomial is 18, and the leading term is √7.
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the lcm and hcf of 84 and 96 pleasee
Answer: LCM=672; HCF=12
Step-by-step explanation:
LCM=Least Common Multiple
HCF=Highest Common Factor
Factor of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
Factor of 96: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96
From the list we can see, the highest common factor between 84 and 96 is 12.
The easiest way to find least common multiple is to time the numbers together and then divide it by their highest common factor.
84×96÷12=672
PLEASE ANDWER FAST
Sora is also making a salad. Her salad dressing recipe uses 6 teaspoons of vinegar for every 15
teaspoons of olive oil.
2.1 How much vinegar does Sora need for 5 teaspoons of olive oil?
2.2 How much olive oil does Sora need for 8 teaspoons of vinegar?
2.3 If Sora makes 42 teaspoons of salad dressing, how much of each ingredient is in it?
2.4 If Sora makes 14 teaspoons of salad dressing, how much of each ingredient is in it?
The following answers are given as:
2.1)
2 teaspoons of vinegar are needed for 5 teaspoons of olive oil.
2.2)
8 teaspoons of vinegar are needed for 20 teaspoons of olive oil.
2.3)
There are 12 teaspoons of vinegar and 30 teaspoons of olive oil in the 42 teaspoons of salad.
2.4)
There are 4 teaspoons of vinegar and 10 teaspoons of olive oil in the 14 teaspoons of salad.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
In 2 hours, a man can walk for 6 miles
In 1 hour, a man will walk for 3 miles.
We have,
6 teaspoons of vinegar = 15 teaspoons of olive oil.
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Now,
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Multiply 2 on both sides.
2 teaspoons of vinegar = 5 teaspoons of olive oil.
Now,
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Multiply 8 on both sides.
8 teaspoons of vinegar = 20 teaspoons of olive oil.
Now,
Total number of teaspoons = 42
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Multiply 12 on both sides.
12 teaspoons of vinegar = 30 teaspoons of olive oil.
12 + 30 = 42 teaspoons
Now,
1 teaspoon of vinegar = 5/2 teaspoons of olive oil.
Multiply 4 on both sides.
4 teaspoons of vinegar = 10 teaspoons of olive oil.
4 + 10 = 14 teaspoons
Thus,
2 teaspoons of vinegar are needed for 5 teaspoons of olive oil.
8 teaspoons of vinegar are needed for 20 teaspoons of olive oil.
There are 12 teaspoons of vinegar and 30 teaspoons of olive oil in the 42 teaspoons of salad.
There are 4 teaspoons of vinegar and 10 teaspoons of olive oil in the 14 teaspoons of salad.
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Rate to unit rate, what is the unit rate of a case of 24 bottles of water for $4.99 ?
A dilation is a transformation in which the _____, but not the shape, of a geometric figure is changed.
A board that is 7.5 feet long has a section cut off that is 2.6 feet long. How much of the board is left? 4.1 feet 5.1 feet 4.9 feet 5.9 feet
Answer:
4.9 .................................
which linear inequality is represented by the graph
Answer:
The correct awnser is A : )
Step-by-step explanation:
What is the slope of the line represented by the given table?
X -14 0 7 14 21
y -6 2 6 10 14