Ok, so
Let me explain to you:
We have a xy-plane. Remember that cos(x) is a relation in a right triangle which relations the adjacent side of the angle and its hypotenuse.
In this case, we're going to analyze the sign of this relation, like this:
In the first quadrant, we notice that the adjacent side of the angle always takes positive values. And the hypotenuse is always positive, so, if we do a ratio, cos(x) will be positive.
In the second quadrant, we can see that x-axis (adjcent side) takes negative values. And the hypotenuse is always positive, so, if we do the ratio, cos(x) will be negative here.
In the third quadrant, cos(x) is also negative for the same reason.
In the fourth quadrant, cos(x) is positive.
We would conclude that the sign of cos(x) depends of the quadrant, if x-axis is positive, or not.
If A=(4,-5) and B=(7,-9), what is the length of AB
The length of line segment AB is 5 units.To find the length of line segment AB, we can use the distance formula, which is based on the Pythagorean theorem.
The distance formula calculates the distance between two points (x1, y1) and (x2, y2) in a coordinate plane.
Let's calculate the length of AB using the given coordinates for points A and B:
Coordinates of point A: A = (4, -5)
Coordinates of point B: B = (7, -9)
The distance formula is given by:
\(d = [(x2 - x1)^2 + (y2 - y1)^2]\)
Substituting the coordinates of A and B into the formula:
\(d = [(7 - 4)^2 + (-9 - (-5))^2]\\d =[(3)^2 + (-4)^2]\)
d = √[9 + 16]
d = √25
d = 5
Therefore, the length of line segment AB is 5 units.
The distance formula calculates the straight-line distance between two points in a two-dimensional space. In this case, it determines the distance between points A and B in the coordinate plane. By applying the formula and substituting the given coordinates, we find that the length of AB is 5 units.
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A bond is worth $100 and grows in value by 4 percent each year. Assuming this bond compounds quarterly, what is the value of the bond after 5 years?
Responses
$121.67
$122.02
$122.67
$120.00
Answer:it will be D
Step-by-step explanation: because $100 + 4%=$100.4
Find the exact length of the third side. 6 2
We can draw the triangle for clarification:
We can use the pythagoras theorem:
\(\begin{gathered} c^2=a^2+b^2 \\ b^2=c^2-a^2 \\ b=\sqrt[]{c^2-a^2}=\sqrt[]{6^2-2^2}=\sqrt[]{36-4} \\ b=\sqrt[]{32}=\sqrt[]{16\cdot2}=\sqrt[]{16}\cdot\sqrt[]{2} \\ b=4\cdot\sqrt[]{2} \end{gathered}\)The exact length of the third side is:
\(4\cdot\sqrt[]{2}\)2b.) What transformation of f(x) does y correspond to?
a.) a verticle translation 4 units down
b.) a verticle translation 4 units up
c.) a horizontal translation 4 units to the left
d.) a horizontal translation 4 units to the right
Answer:
The transformation is " a horizontal translation 4 units to the right " ⇒ (d)
Step-by-step explanation:
Let us revise the translation of a function
If the function f(x) translated horizontally to the right by h units, then its image is g(x) = f(x - h) If the function f(x) translated horizontally to the left by h units, then its image is g(x) = f(x + h) If the function f(x) translated vertically up by k units, then its image is g(x) = f(x) + k If the function f(x) translated vertically down by k units, then its image is g(x) = f(x) - kLet us look at the graph and choose some points on the f(x) and find their images on y
∵ Point (1, 2) lies on f(x)
∵ Point (5, 2) lies on y
∵ Point (3, 8) lies on f(x)
∵ Point (7, 8) lies on y
→ There is no change in the y-coordinates of the points, the change
only in the x-coordinates
∴ The translation is horizontally
∵ 5 - 1 = 4 units ⇒ positive value means to right
∴ f(x) is translated 4 units to the right
∴ The answer is " a horizontal translation 4 units to the right " (d)
Q. An arithmetic series has first term a and common difference d, where d is a prime number. The sum of the first n terms of the series is S, and Sm=39 S2m = 320 Find the value of d and the value of m Show clear algebraic working. (Total for question = 5 marks)
Finding the values of d and the value of m with the algebraic working will give us the the value of d to be 7 and the value of m to be 3.
How do we calculate the values using the algebraic expression?Finding the value of d, we know that the sum of the first n terms of an arithmetic series is given by:
S = n/2 * (2a + (n-1)d)
Since the sum of the first n terms is S and the sum of the first 2m terms is S2m, we can set up the following equation:
S = m/2 * (2a + (m-1)d)
S2m = 2m/2 * (2a + (2m-1)d)
Substituting the given values for S and S2m into these equations, we get:
39 = m/2 * (2a + (m-1)d)
320 = 2m/2 * (2a + (2m-1)d)
Solving for d in each equation, we find that d = -7 in the first equation and d = 7 in the second equation. Since d must be a prime number, the only possible value for d is 7.
Now that we know the value of d, we can solve for m. Substituting the value of d back into one of the equations and solving for m, we get:
39 = m/2 * (2a + (m-1)7)
78 = m * (2a + (m-1)7)
78 = m * 2a + 7m^2 - 7m
7m^2 - m - 78 = 0
We can solve for m using the quadratic formula:
m = (-1 +/- sqrt(1^2 - 4*7*(-78)))/(2*7)
= (-1 +/- sqrt(2521))/14
= (-1 + 49)/14 = 3
= (-1 - 49)/14 = -7
Since m must be a positive integer, the only possible value for m is 3.
Therefore, the value of d is 7 and the value of m is 3.
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Which of the following describes the transformation from figure 1 to figure 2 shown on the graph below
Answer:
(x+5, y-2)
Step-by-step explanation:
Move right 5 units and moves down 2 units
When graphed, will the line x - 2y = 6 be
parallel, perpendicular or neither to a line that
passes through the points (5,2) and (3,6)?
Answer:
Step-by-step explanation:
Slope of x-2y=6 is ½.
Slope of line through (5,2) and (3,6) = (6-2)/(3-5) = -2
The two slopes are negative reciprocals of each other (i.e., their product is -1), so the two lines are perpendicular.
The total number of hours each student spends volunteering in their
community is shown in the stem-and-leaf plot.
Hours Volunteered
Stem Leaf
1012479
2122578
303336
4 112
Which statement is supported by the data in the stem-and-leaf plot?
OA. The number of students who volunteered more than 30 hours is
greater than the number of students who volunteered fewer than
30 hours.
The most common number of hours volunteered is 22.
Option B is the correct answer.
We have,
A.
The number of students who volunteered more than 30 hours is greater than the number of students who volunteered fewer than 30 hours.
This can not be determined from the given stem-and-leaf plot as it only shows the frequency distribution of hours volunteered without any specific count of students.
The plot only indicates that there are some students who volunteered between 31-36 hours (stem 3, leaves 33, and 36) and one student who volunteered for 44 hours (stem 4, leaf 4).
Therefore, option A is not supported by the given data.
B.
The most common number of hours volunteered is 22.
From the stem-and-leaf plot, we can see that the mode is 22 as it has the highest frequency (stem 2, leaves 2, 5, 7, 8).
Hence, option B is supported by the given data.
C.
The number of students who volunteered between 9 and 20 hours is greater than the number of students who volunteered more than 40 hours.
This statement cannot be confirmed by the given stem-and-leaf plot as there are no leaves in stem 1, which means there are no students who volunteered less than 10 hours. Also, there are no leaves in stem 4, except for one leaf with a value of 44.
Therefore, we can not determine how many students volunteered between 9-20 hours and more than 40 hours. Hence, option C is not supported by the given data.
D.
The most common number of hours volunteered is 41.
There are no leaves in stem 4 except for the value of 44, which means there is no student who volunteered for 41 hours.
Hence, option D is not supported by the given data.
Therefore,
The most common number of hours volunteered is 22.
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Jada has $70 in a savings account that earns 5% annually. The interest is not compounded. How much will she have in 1 year?
Solution
For this case we can use the following formula:
\(A=P(1+rt)\)For this case we have:
P= 70
r= 0.05
t= 1
And replacing we got:
\(A=70(1+0.05\cdot1)=73.5\)Then the final answer for this case is 73.5
What is the equation of the that contains the point (3,-2) and has a slope of 5?
Answer:
y = 5x-17
Step-by-step explanation:
point slope form would be
y- -2 = 5(x-3) or re-arrange to: y = 5x -17
what are the Advantages of using Java libraries to perform mathematical functions
Java libraries are built-in functions that contain several classes.
Some advantages of using Java mathematical libraries are:
The mathematical libraries are always portableThey are efficient.They save timeThey have been optimized to perform effectivelyThere are various other advantages of the Java mathematical libraries.
Some examples of the Java mathematical libraries and their usage are:
Math.sqrt(), used to calculate the positive square root of a number. Math.cbrt(), used to calculate the cube root of a number. Math.pow(), used to calculate the raise to power of a number.Read more about Java mathematical libraries at:
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In square GEOM, the coordinates of G are (2,-2) and the coordinates of O are (-4,2).
Determine and state the coordinates of vertices E and M.
[The use of the set of axes below is optional.]
The required coordinates of E are (2 + 2 √(13), -2) and the coordinates of M are (-4, 2 + 2 √(13)).
What is the midpoint?The midpoint formula states that the coordinates of the midpoint of a line segment with endpoints (x₁, y₁) and (x₂, y₂) are given by the formula (x₁ + x₂)/2, (y₁ + y₂)/2.
Since G and O are the midpoints of the sides of square GEOM, the length of each side of the square is the distance between G and O. The distance between the two points can be calculated using the distance formula:
distance = √((x₁ - x₂)² + (y₁ - y₂)²)
Plugging in the coordinates of G and O, we get:
distance = √((-4 - 2)²+ (2 - (-2))²)
distance = √(6² + 4²)
distance = √(36 + 16)
distance = √(52)
distance = 2 √(13)
Thus, the length of each side of the square is 2 √(13).
To find the coordinates of E, we need to move 2 √(13) units to the right of G. Therefore, the coordinates of E are (2 + 2 √(13), -2).
To find the coordinates of M, we need to move 2 √(13) units above O. Therefore, the coordinates of M are (-4, 2 + 2 √(13)).
So the coordinates of E are (2 + 2 √(13), -2) and the coordinates of M are (-4, 2 + 2 √(13)).
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HELP PLEASE!!
Quadrilateral CDEF is a rhombus. What is m
Answer:
∠ BDC = 29°
Step-by-step explanation:
the sides of a rhombus are congruent, so CD = ED and Δ EDC is therefore isosceles with base angles congruent , then
∠ BCD = ∠ BED = 61°
• the diagonals are perpendicular bisectors of each other , then
∠ CBD = 90°
the sum of the 3 angles in Δ BCD = 180°
∠ BDC + ∠ CBD + ∠ BCD = 180°
∠ BDC + 90° + 61° = 180°
∠ BDC + 151° = 180° ( subtract 151° from both sides )
∠ BDC = 29°
WILL GIVE BRAINLIEST 20 POINTS PLEASE ANSWER (URGENT)
The graph below shows a company's profit f(x), in dollars, depending on the price of erasers x, in dollars, sold by the company
Graph of quadratic function f of x having x intercepts at ordered pairs 0, 0 and 8, 0. The vertex is at 4, 270.
Part A: What do the x-intercepts and maximum value of the graph represent? What are the intervals where the function is increasing and decreasing, and what do they represent about the sale and profit? (4 points)
Part B: What is an approximate average rate of change of the graph from x = 1 to x = 4, and what does this rate represent? (3 points)
Part C: Describe the constraints of the domain. (3 points)
The x < 4 function is increasing to the vertex, x> 4 function is decreasing and approximate average rate of change of the graph is 70, and x ∈(0, 8) is the domain of the function.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have a graph of a function shown in the picture.
Part A:
When the profit is zero, the x intercepts depict it. The biggest profit happens at the vertex, which has the highest value. The function increases until it hits the vertex, then decreases after that.
x < 4 function is increasing to the vertex.
x> 4 function is decreasing
Part B: approximate average rate of change of the graph from x = 1 to x = 4:
= [f(4) - f(1)]/(4-1)
= (270-60)/3
= 70
Part C: We can't sell pay individuals to take the thing since the domain is confined by x at x =0. We are constrained in terms of business at x=8.
Thus, the x < 4 function is increasing to the vertex, x> 4 function is decreasing and approximate average rate of change of the graph is 70, and x ∈(0, 8) is the domain of the function.
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The graph of f(x) = x^3 is stretched vertically by a factor of 6. The graph
is then translated 9 units to the right and 3 units down. Write the equation of the transformed function.
Answer:
Transformed equation: 6(x-9)³ - 3
Step-by-step explanation:
Answer:
6(x - 9)^3 - 3
Step-by-step explanation:
1. Vertical Stretching : f(x) -> g(x): \(g(x) = 6x^{3}\)
2. Horizontal Move: g(x) -> h(x): \(h(x) = 6{(x - 9)}^{3}\)
3. Vertical Move: h(x) -> F(x): \(F(x) = 6{(x - 9)} ^{3} - 3\)
Can someone please help, ty!!
(Will mark brainliest)
Answer:
I think the blue one
Step-by-step explanation:
The circumference of a circle is 36 x feet. What is the length of the radius of this circle?
O 9 ft
18 ft
0 36 ft
072 ft
Answer:
\( \boxed{\sf Radius \ of \ circle = 18 \ ft} \)
Given:
Circumference of a circle = 36π feet
To Find:
Length of the radius of circle (r).
Step-by-step explanation:
\( \sf \implies Circumference \: of \: a \: circle =2\pi r \\ \\ \sf \implies 36 \cancel{\pi} = 2 \cancel{\pi }r \\ \\ \sf \implies \frac{36}{2} = \frac{ \cancel{2}r}{ \cancel{2}} \\ \\ \sf \implies \frac{36}{2} = r \\ \\ \sf \implies r = \frac{36}{2} \\ \\ \sf \implies r = \frac{18 \times \cancel{2}}{ \cancel{2}} \\ \\ \sf \implies r = 18 \: ft\)
1 year insurance policy covering its equipment was purchased for 6,144. The date purchased was June 14 but it doesn't go into effect until June 16th, How much is paid for that
month?
Year?
1 year insurance policy covering its equipment was purchased for 6,144. The date purchased was June 14 but it doesn't go into effect until June 16th, the amount paid for the month of June is approximately $252.75, and the amount paid for the entire year is approximately $6,144.
To calculate the amount paid for the month and the year, we need to consider the number of days covered by the insurance policy. Let's break it down step by step:
Step 1: Determine the number of days covered in June.
Since the policy doesn't go into effect until June 16th, there are 15 days remaining in June that will be covered by the insurance policy.
Step 2: Calculate the daily rate.
To find the daily rate, we divide the total cost of the insurance policy by the number of days in a year:
Daily rate = 6,144 / 365
Step 3: Calculate the amount paid for June.
The amount paid for June can be found by multiplying the daily rate by the number of days covered:
Amount paid for June = Daily rate * Number of days covered in June
Step 4: Calculate the amount paid for the year.
To calculate the amount paid for the year, we simply multiply the daily rate by 365 (the total number of days in a year):
Amount paid for the year = Daily rate * 365
Now let's perform the calculations:
Step 2: Daily rate
Daily rate = 6,144 / 365 ≈ 16.85 (rounded to two decimal places)
Step 3: Amount paid for June
Amount paid for June = 16.85 * 15 ≈ 252.75 (rounded to two decimal places)
Step 4: Amount paid for the year
Amount paid for the year = 16.85 * 365 ≈ 6,144 (rounded to two decimal places)
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if angle two equals 130 find the measure of angle 6 in the answer is not 130 or 50 wilmart brainiest
Answer:
∠6 = 130°Step-by-step explanation:
the answer is 130.. because its a corresponding angles
that means corresponding angles are equal
∠2 = ∠6 = 130°Is the line through points P(2,-9) and Q(6, -13) perpendicular to the line through points R(5,-1) and
S(1,-5)? Explain
Answer:
yes they are perpendicular to eachother because when both the lines cross it makes a right angle 90 degrees making it perpendicular
Step-by-step explanation:
Solve for the value of R
Answer:
R is a variable
Step-by-step explanation:
If a gang of eight rob a bank, what percent of the loot belongs to three of the robbers? What percent belongs to them if two of the gang are killed? By what percent does each robber’s share increase? What percent belongs to three of them? What percent belongs to them if two of the gang are killed? Each robber's share increases by how much percent?
Answer:
(assuming all members of the gang get equal percentages)
For a gang of 8: 12.5% (100/8)
If 2 are killed: 16.67% (100/6), so percentage increases by roughly 4.2% (16.67-12.5)
Percent that belongs to 3: 12.5%*3=37.5%
Percent that belongs to 3 if 2 are killed: 16.67%*3=50.0%
Each robber's share still increases by 4.2% (50%-37.5%=12.5%, 12.5%/3=4.2%)
If you would like additional help with math or another subject, check out growthinyouth.org!
Step-by-step explanation:
Simplify the following expression:
4 + √-4 + √-9 + 7
A. 11 + 5i
B. 5 - 11i
C. 11 + √13i
D. 15 + 0i
1) How much interest will you pay on a $43,000 car loan with a fixed APR of 4.9% if the loan is
for 5 years?
With a monthly repayment of $809.49, the total interest on the car loan will be $5,569.67.
How is the total interest computed?We assume that there are monthly repayments and compounding interest on the car loan.
With periodic repayments and compounding interest, the total interest paid on the car loan will be as shown by the car loan calculator.
Car loan = $43,000
Down payment = $0
Fixed Annual Percentage Rate (APR) = 4.9%
Loan term = 5 years
Car Loan Calculator with monthly Repayment:
Payment = $809.49/month
Interest Paid =$5,569.67
Total Paid = $48,569.67
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Pretty please help me i really need some help i have a headache and im doin my homework
Answer:
I got you the answer is 540 TRUST ME ;)
Step-by-step explanation:
CAN I PLEASE GET BRAINLIEST I WILL HELP YOU WITH OTHER PROBLEMS
Two vacationing families leave New York at the same time. They take 20 and 6 days, respectively, to reach their destination and return to New York. The vacationing families each take continuous trips to and from New York. How many days will pass before the two vacationing families leave New York on the same day again?
Answer:
Step-by-step explanation: evagline has 3/5 of box of nuts.she uses it to fill 6 bowls
each function
f(x)=-4x-5;
ion for
Find ƒ(1)
for the given
When x is equal to 1, the Function f(x) = -4x - 5 yields a value of -9.
The find ƒ(1) for the function f(x) = -4x - 5, we need to substitute x = 1 into the function and evaluate the expression.
Replacing x with 1, we have:
ƒ(1) = -4(1) - 5
Simplifying further:
ƒ(1) = -4 - 5
ƒ(1) = -9
Therefore, when x is equal to 1, the value of the function f(x) = -4x - 5 is ƒ(1) = -9.
Let's break down the steps taken to arrive at the solution:
1. Start with the function f(x) = -4x - 5.
2. Replace x with 1 in the function.
3. Evaluate the expression by performing the necessary operations.
4. Simplify the expression to obtain the final result.
In this case, substituting x = 1 into the function f(x) = -4x - 5 gives us ƒ(1) = -9 as the output.
It is essential to note that the notation ƒ(1) represents the value of the function ƒ(x) when x is equal to 1. It signifies evaluating the function at a specific input value, which, in this case, is 1.
Thus, when x is equal to 1, the function f(x) = -4x - 5 yields a value of -9.
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1. Prove ~ (Pvq) <=> (~P^~9).
Algebra of propositional variables
2. P^ q = q^q
P v q = q v p
show that both are commutative
Based on the information, both ∧ (conjunction) and ∨ (disjunction) satisfy the commutative property.
How to explain the commutative property.It should be noted that to prove the commutativity of the logical connectives ∧ (conjunction) and ∨ (disjunction), we need to show that they satisfy the commutative property
From the truth table, both P ∧ Q and Q ∧ P have the same truth values for all combinations of truth values of P and Q. Therefore, we can conclude that P ∧ Q ≡ Q ∧ P, and ∧ (conjunction) is commutative.
In order to prove P ∨ Q ≡ Q ∨ P, we construct a truth table for both expressions. Both P ∨ Q and Q ∨ P have the same truth values for all combinations of truth values of P and Q. Therefore, we can conclude that P ∨ Q ≡ Q ∨ P, and ∨ (disjunction) is commutative.
Hence, both ∧ (conjunction) and ∨ (disjunction) satisfy the commutative property.
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ILL GIVE BRAINLYIST TO WHOEVER ANSWERS THIS RIGHTTT PLEASE HELP
Answer:
128
Step-by-step explanation:
Do 10*8=80
8*6=38 48/2=24
80+24+24
104+24
128
Solve the system of equations with graph given below. Write the solution as an ordered pair (x, y)
The solution as an ordered pair (x, y), of the system of equations on the given graph is: (4, 1).
What is the Solution to a System of Equations with a given Graph?The solution to a system of equations with a given graph is found by identifying the point or points where the graphs of the equations intersect. These points represent the values that satisfy both equations simultaneously.
The graph given shows that the two lines intersect at the point whose coordinates are (4, 1). Therefore, the solution is (4, 1).
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