Okay, first remember that the horizontal axis is the "x" axis, so considering this y is the (vertical) distance above the X-axis, so this mean that as in this case the absolute value of y is 8, the absolute distance to the horizontal axis is 8 units.
I need help with this
The option that can be used to verify the trigonometric identity, \(tan\left(\dfrac{x}{2}\right)+cot\left(x \right) = csc\left(x \right)\) is option C;
C. \(tan\left(\dfrac{x}{2} \right) + cot\left(x \right) = \dfrac{1-cos\left(x \right)}{sin\left( x \right)} +\dfrac{cos \left(x \right)}{sin\left(x \right)} =csc\left(x \right)\)
What is a trigonometric identity?A trigonometric identity is an equations that consists of trigonometric functions that remain true for all values of the argument of the functions
The specified identity is presented as follows;
\(tan\left(\dfrac{x}{2} \right)+cot(x)=csc(x)\)
The half angle formula for tangent indicates that we get;
\(tan\left(\dfrac{1}{2} \cdot \left(\eta \pm \theta \right) \right) = \dfrac{tan\left(\dfrac{1}{2} \cdot \eta \right)\pm tan\left(\dfrac{1}{2} \cdot \theta \right)}{1 \mp tan\left(\dfrac{1}{2} \cdot \eta \right)\times tan\left(\dfrac{1}{2} \cdot \theta \right)}\)
\(\dfrac{tan\left(\dfrac{1}{2} \cdot \eta \right)\pm tan\left(\dfrac{1}{2} \cdot \theta \right)}{1 \mp tan\left(\dfrac{1}{2} \cdot \eta \right)\times tan\left(\dfrac{1}{2} \cdot \theta \right)}=\dfrac{sin \left(\eta\right) \pm sin\left(\theta \right)}{cos \left(\eta \right) + cos \left(\theta \right)} = -\dfrac{cos \left(\eta\right) - cos\left(\theta \right)}{sin \left(\eta \right) \mp sin \left(\theta \right)}\)
When η = 0, we get;
\(-\dfrac{cos \left(0\right) - cos\left(\theta \right)}{sin \left(0 \right) \mp sin \left(\theta \right)}=-\dfrac{1 - cos\left(\theta \right)}{0 \mp sin \left(\theta \right)}=\dfrac{1 - cos\left(\theta \right)}{sin \left(\theta \right)}\)
Therefore;
\(tan\left(\dfrac{x}{2} \right)=\dfrac{1 - cos\left(x \right)}{sin \left(x \right)}\)
\(cot\left(x \right) = \dfrac{cos(x)}{sin(x)}\)
\(tan\left(\dfrac{x}{2} \right)+cot(x)= \dfrac{1 - cos\left(x \right)}{sin \left(x \right)} +\dfrac{cos(x)}{sin(x)}\)
\(\dfrac{1 - cos\left(x \right)}{sin \left(x \right)} +\dfrac{cos(x)}{sin(x)}=\dfrac{1-cos(x)+cos(x)}{sin(x)} = \dfrac{1}{sin(x)}\)
\(\dfrac{1 - cos\left(x \right)}{sin \left(x \right)} +\dfrac{cos(x)}{sin(x)}=\dfrac{1}{sin(x)}=csc(x)\)
Therefore;
\(tan\left(\dfrac{x}{2} \right)+cot(x)= \dfrac{1 - cos\left(x \right)}{sin \left(x \right)} +\dfrac{cos(x)}{sin(x)} = csc(x)\)
The correct option that can be used to verify the identity is option C
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what is the equation of the line through (2,-1) and (0,5)
A. y= -3x + 5
B. y= 3x - 5
C. y= -3x - 5
D. y= 3x + 5
The area of a square garden is 200 m2. How long is the diagonal?
20 m
10.2 m
200 m
100 m
Answer:
20 m
Step-by-step explanation:
First find the side length
A = s^2 for a square garden
200 = s^2
Take the square root of each side
sqrt(200) = sqrt(s^2)
sqrt(2) sqrt(100) = s
10 sqrt(2) = s
Now we can use the Pythagorean theorem to find the diagonal
a^2 + b^2 = c^2 where a and b are the side lengths a c is the hypotenuse
s^2 + s^2 = c^2
200 + 200 =c^2
400 = c^2
Take the square root of each side
sqrt(400) = sqrt(c^2)
20 = c
First find the lenght of a side:
\(a=\sqrt{200}\implies a\approx 14.14\)
Then multiply the approximated side by \(\sqrt{2}\) and obtain the lenght of diagonal:
\(d\approx14.14\sqrt{2}=\boxed{20\mathrm{m}}\)
Hope this helps.
Identify the values of the variables. Give your answers in simplest radical form. HELP!
The value of the variables in the right triangle are as follows;
\(v = \frac{3\sqrt{2} }{2}\)\(w=\frac{3\sqrt{6} }{2}\)How to find the side of a right tringle?A right triangle is a triangle that has one of its angles as 90 degrees.
The side of a right triangle can be found by using trigonometric ratios.
Therefore, let's find the variable length of the right triangle as follows;
sin 30 = opposite / hypotenuse
sin 30 = v / 3√2
1 / 2 = v / 3√2
cross multiply
3√2 = 2v
divide both sides by 2
v = 3√2 / 2
Let's find the variable w.
cos 30 = adjacent / hypotenuse
cos 30 = w / 3√2
√3 / 2 = w / 3√2
cross multiply
√3 × 3√2 = 2w
3√6 = 2w
divide both sides by 2
w = 3√6 / 2
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Evan has a points card for a movie theater.
He receives 55 rewards points just for signing up.
He earns 4.5 points for each visit to the movie theater.
He needs 100 points for a free movie ticket.
Write and solve an equation which can be used to determine xx, the number of visits Evan must make to earn a free movie ticket.
Answer:
X=10
Step-by-step explanation:
4.5x +55=100
Answer:
X=10
Step-by-step explanation:
4.5x +55=100
pls i need answers or im going to fail xd
5th grade math. correct answer will be marked brainliest
Answer:true
Step-by-step explanation:
Joelle had no money so she borrowed $28 from her mother to pay for dinner and a movie. She
earned $35 babysitting that weekend. How much money will she have after paying her mother
back?
Answer:
7 dollars
Explanation: subtract 28 from 35 to get your answer
Given:
AD
diameter of Circle P.
Dec
B
A
If m < 1 = 30°, then m AB
15
30
60
Answer:
The measure of an arc is the size of the corresponding central angle, so angle 1 for AB,
Answer: B 30
cos 2x= ___. Check all that apply.
A. sin² x - cos²x
B. 1-2 cos²x
C. 1-2 sin² x
D. 2 cos²x - 1
Answer:
C and D
Step-by-step explanation:
\(\cos(2x)\\=\cos(x+x)\\=\cos(x)\cos(x)-\sin(x)\sin(x)\\=\cos^2(x)-\sin^2(x)\\=\cos^2(x)-(1-\cos^2(x))\\=2\cos^2(x)-1 \,\,\,\,\,\,\,\,\,\,\leftarrow \text{Option D}\\=2(1-\sin^2(x))-1\\=2-2\sin^2(x)-1\\=1-2\sin^2(x)\,\,\,\,\,\,\,\,\,\,\,\leftarrow \text{Option C}\)
What is the intermediate step in the form
(x+a)^2=b as a result of completing the square for the following question
The intermediate step in completing the square is\($x^2 + 2ax + (a^2) = b - a^2 + (a^2)$\)
To complete the square for the equation \($(x+a)^2=b$\), we can follow these steps:
1. Expand the left side of the equation: \($(x+a)^2 = (x+a)(x+a) = x^2 + 2ax + a^2$\).
2. Rewrite the equation by isolating the squared term and the linear term: \($x^2 + 2ax = b - a^2$\).
3. To complete the square, take half of the coefficient of the linear term, square it, and add it to both sides of the equation:
\($x^2 + 2ax + (a^2) = b - a^2 + (a^2)$\).
4. Simplify the right side of the equation: \($x^2 + 2ax + (a^2) = b$\).
This step can be represented as: \(\[x^2 + 2ax + (a^2) = b - a^2 + (a^2)\]\)
This intermediate step helps us rewrite the equation in a form that allows us to factor it into a perfect square.
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a data set where the median is triple the mean
A data set where the median is triple the mean is one that is heavily skewed to the right.
What is median?Median is a type of average, which is used to calculate the central value of a set of data. It is the middle value in an ordered list of numbers, which is determined by arranging the numbers in ascending or descending order.
This means that the majority of values in the data set are much larger than the mean. This could be due to a few outliers that are very large compared to the rest of the values in the data set. The median value is not affected by any outliers, so it remains at a much higher value than the mean. This type of data set is known as a right skewed data set because the majority of the values are concentrated on the right side of the graph. To get a better understanding of the data set it is important to look at the distribution of the data in order to identify any outliers.
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A data set where the median is triple the mean is one that is heavily skewed to the right.
What is median?Median is a type of average, which is used to calculate the central value of a set of data. It is the middle value in an ordered list of numbers, which is determined by arranging the numbers in ascending or descending order.
This means that the majority of values in the data set are much larger than the mean.
This could be due to a few outliers that are very large compared to the rest of the values in the data set.
The median value is not affected by any outliers, so it remains at a much higher value than the mean.
This type of data set is known as a right skewed data set because the majority of the values are concentrated on the right side of the graph.
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Question:
How is a graph for a data set where the median is triple the mean represented?
Use the given information yo find the exact value of each of the following. A. Sin 2 theta . B. Cos 2 theta C. Tan 2 theta
Cot theta = 6, theta lies in quadrant III
Answer:
C
Step-by-step explanation:
Prove (a) B(x+1,y)= x+y
x
B(x,y). (b) Γ(2x)= π
2 2x−1
Γ(x)Γ(x+ 2
1
).
The simplified equation is (π2 / 2) * ∫[0, ∞] (x(2x-1) * e(-x) / (Γ(x) * Γ(1 - x)) DX
a. To prove B(x+1, y) = x * B(x, y), proceed as follows.
Start with B(x+1, y) = [(x+1)! * y!] / ((x+y+2)!) (using the definition of B(x, y)).
Rewrite 1 / (x+1) to (x+y+2 - (y+1)) / (x+y+2) .
Using the formula above, express B(x+1, y) as (x+y+2) / (x+y+2) * [(x+1)! to rewrite. * y!] / ((x+y+2)!) - (y+1) / (x+y+2) * [(x+1)! * y!] / ((x+y+2) !).
Simplify the formula to (x+y+2) / (x+y+2) * B(x, y) - (y+1) / (x+y+2) * B(x, y) increase.
Simplify further to B(x, y) - (y+1) / (x+y+2) * B(x, y).
Note that B(x, y) can be expressed as (x / (x+y+1)) * B(x, y) .
Substitute this formula in the previous step to get,
x * B(x, y) - (y+1) / (x+y+2) * x * B(x, y).
x * B(x, y) - (y+1) / (x+y+2) * x * B(x, y)
= x * B(x, y)
You have now proved B(x+1, y) = x * B(x, y).
b. We wish to prove the identity Γ(2x) = ((2sin(πx))) * Γ(x) * Γ(x + 1/2).
Integrate ∫[0, ∞] (x(2x-1) * Start with dx.
Evaluating this integral using the permutation u = du is obtained.
Simplify the integral to (1/2) * Γ(x + 1/2).
Express sin(πx) as π / (Γ(x) * Γ(1 - x)).
Let the original integral be π * (2(2x-1) / π) * ∫[0, ∞] (x(2x-1) * e(-x) * (1/sin( πx) Rewrite.)) DX.
Substituting the equations,
The integral, π * (2(2x-1) / π) * ∫[0, ∞] (x(2x-1) *
We get * (π / (Γ(x) * Γ(1 - x)))) dx.
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Anyone please help I don’t know what to do
Answer:
Step-by-step explanation:
I think its b
Answer:
Step-by-step explanation:
Using point-slope intercept form:
The equation of line is given by:
.....[1]
where,
m is the slope of the line and is the point on the line.
As per the statement:
A line with slope 4/5 that contains the points (-2,1)
⇒m = and
Substitute these values in [1] we have;
Therefore, is the point slope form of a line with slope 4/5 that contains the points (-2,1).
the difference between half a number and 19
The bigger
the number the more
factor pairs it has.
Use examples to show that Dexter is wrong.
Answer:
See Explanation
Step-by-step explanation:
Required
Prove that Dexter is wrong
To prove that Dexter is wrong, we use the following numbers.
\(Number = 4\)
The factors are:
\(Factor = 1,2\ and\ 4\)
3 factors
Using a greater number:
\(Number = 5\)
The factors are:
\(Factor = 1\ and\ 5\)
2 factors
From the above analysis:
4 has 3 factors and 5 has 2 factors; which shows that 5 has fewer factors
This shows that Dexter is wrong
who made the telescope
Answer:
Hans Lipperhey made the telescope
Answer:
Hans lipperhey and Lyman Spitzer
What is the length of BD?
Answer:
D stays for 1 and as B is -6
the length of BD should be 7
good luck <3!
Which graph shows the information in the table?
Calories in Salad Dressing
Number of Ounces of Salad
Dressing
2
3
4
5
Total Calories
300
450
600
750
Answer: Number 2
Step-by-step explanation: yes
What is the simple interest earned on $ 235 at 4.5 % for 2 years?
Answer:
$21.15
Step-by-step explanation:
(235)(.045)(2)
A kids pool had a small opening through which water sometimes leaked out. Water was poured into the pool from time to time. The graph shows the amount of water in the pool (y), in gallons, at certain times (x), in hours.
Which of the following statements best describes the amount of water in the pool ?
1) it is increasing during the time interval 4
2) it is increasing during the time interval 10
3) it is decreasing during the time interval 4
4) it is decreasing during the time interval 10
The best statement that describes the amount of water in the pool is that it is decreasing during the time interval 4. That is option 3.
How to determine the the interval of the water in the pool?To determine the time interval of the water in the pool the following is carried out.
At 0 hour, the water is at the level of = 40 gallons
At 1 hour, the water decreased to = 25 gallons.
At 2 hours, the water decreased to = 10 gallons.
The water remained at a constant level till 4 hours.
Therefore, the amount of water in the pool is that it is decreasing during the time interval 4.
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Find the sum of the following arithmetic series:
Answer:
19107
Step-by-step explanation:
First, we need to find the common difference (d), which we can find by subtracting two consecutive terms. Thus, we can do d = 1 - (-3) = 4.
Now, we need to know how many terms are in the arithmetic series. We can find the number using nth term formula, which is
\(a_{n}=a_{1}+(n-1)*d\), where a1 is the first term, n is the term position (e.g., 1st, 2nd).
Although we don't know the term position of 389, we can still plug it into the formula and solving for n will reveal it's term number and the total number of sums in the sequence:
\(389=-3+(n-1)*4\\392=(n-1)*4\\392=4n-4\\396=4n\\99=n\)
Now, we can find the sum using the sum formula, which is
\(S_{n}=n/2*(a_{1}+a_{n})\)
Sn can become S99 since there are 99 terms and we can let an = a99, which we know is 389.
Now, we must solve for S99:
\(S_{99}=\frac{99}{2}*(-3+389)\\ S_{99}=\frac{99}{2}*(386)\\ S_{99}=19107\)
The above table shows statistics on the ages, in years, of the people who attended a lecture last week. The data are summarized in the boxplot shown.Which of the following statements is supported by the table and boxplot?answer choicesThe range of the distribution is 20 years.There were 43 people who attended the lecture.At least 50% of the people who attended the lecture were 43 years or younger.At least 75% of the people who attended the lecture were age 53 years or younger.At least 25% of the people who attended the lecture were 33 years old.
The boxplot shows that the majority of the people who attended the lecture were age 53 or younger, which means at least 75 percentage of the people were in that range.
The table and boxplot provide information about the ages of the people who attended a lecture last week. The boxplot shows that the majority of the people who attended the lecture were age 53 or younger. This is supported by the table, which shows that the median age is 53 and the interquartile range is between 36 and 53. This indicates that at least 75% of the people who attended the lecture were age 53 years or younger. The range of the distribution is 20 years, with the minimum age being 18 and the maximum age being 38. This suggests that there were at least two people in each age range, from 18 to 38. This also indicates that there were at least 43 people who attended the lecture. The boxplot also shows that at least 25% of the people who attended the lecture were 33 years old. This is supported by the table, which shows the lower quartile is 33.
Interquartile range = Maximum - Minimum
Interquartile range = 53 - 36 = 17
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Help ASAP
Find the Distance between (5,2) and (-3,-4)
Answer:
\(d = 10\)
Step-by-step explanation:
Distance Formula: \(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
Simply plug in your 2 coordinates into the formula to find distance d:
\(d=\sqrt{(-3-5)^2+(-4-2)^2}\)
\(d=\sqrt{(-8)^2+(-6)^2}\)
\(d=\sqrt{64+36}\)
\(d=\sqrt{100}\)
\(d = 10\)
solve each system by elimination.
3x-4y=-2 3y-2x=1
A recipe calls for 3.5 cups of rice. If a cup of rice weighs 158 grams, and a bag of rice weighs 2 pounds, how many bags would be needed to make 80 recipes? (2.2 lbs. = 1 kg, 1kg = 1000 g) (Convert 80 recipes to bags)
The number of bags of rice that would be needed to make 80 recipes is 48.664 bags.
How many bags would be needed to make 80 recipes?1 recipe = 3.5 Cups of rice
If
1 cup of rice = 158 grams
1 bag of rice = 2 pounds
2.2 lbs. = 1 kg,
1kg = 1000 g
80 recipes = 3.5 cups 80
= 280 cups
1 cup of rice = 158 grams
280 cups = 158 × 280
= 44,240 grams
1kg = 1000 g
44,240 grams = 44.24 kg
2.2 lbs. = 1 kg; x lbs = 44.24
2.2/1 = x/44.24
x = 2.2 × 44.24
x = 97.328 pounds
1 bag of rice = 2 pounds ; x bags = 97.328 pounds
1/2 = x/97.328
97.328 = 2x
x = 48.664 bags
Hence, 48.664 bags of rice is needed for 80 recipes.
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step by step subtraction Mayan: 208 - 75
Answer:
133
Step-by-step explanation:
Challenge: Solve 2x+y=7 for y. What does y equal?
Y= X+
Answer:
y = -2x+7
Step-by-step explanation:
2x+y=7
Subtract 2x from each side
2x+y -2x=-2x+7
y = -2x+7
In an insect colony, there are 270 insects after 7 days. If there were initially 80 insects, how long will it take the population to grow to 700 insects?
Step-by-step explanation:
Total insects = 270
Days = 7
If 80 insects to 700 insects
Days = 700 ÷ 80 = 8.75
It will take 8.75 days