The equation of the trigonometric function graphed is A) f(x) = 3 sin (x) - 2.
Given a graph of the trigonometric function.
We have to find the equation of the trigonometric function.
For x = π/2, y = 1
Also, when x = 3π/2, y = -5
A) If the function is,
f(x) = 3 sin (x) - 2,
When x = π/2
f(x) = 3 sin (π/2) - 2
= 3(1) - 2
= 1
When x = 5π/2
f(x) = 3 sin (5π/2) - 2
= 3 (-1) - 2
= -5
Hence the correct option is A.
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Which relationships describe angles 1 and 2?
Select each correct answer.
O supplementary angles
D complementary angles
O vertical angles
adjacent an
f(x)=x^2+3x-40 find the zero, thanks in advance
The zeroes of the equation x² + 3x - 40 is -8 or 5.
What is Quadratic Equation?A quadratic equation is a second-order polynomial equation in a single variable x ax²+bx+c=0. with a ≠ 0 .
It has at least one solution because it is a second-order polynomial equation, which is guaranteed by the algebraic fundamental theorem.
Given:
F(x) = x² + 3x - 40
Now, solving the quadratic Equation
x² + 3x - 40 = 0
x² + 8x - 5x - 40 = 0
x(x + 8) - 5(x + 8)=0
(x+8) (x-5)= 0
So, x+8 = 0 or x-5=0
x=-8 or x= 5
Hence, the zeroes are -8 and 5.
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Jerry had the following transaction on his credit card statement on April 1st is unpaid balance $5942.00 the on April 10th a purchase was made $124.00 on April 22 a payment was made $1000.00 on April 28 a purchase was made $628.00
Answer:
Starting unpaid balance = $5942.00
On April 1st: Starting unpaid balance = $5942.00
On April 10th: $124.00 purchase is made, so the new balance becomes $5942.00 + $124.00 = $6066.00
On April 22nd: $1000.00 payment is made, so the new balance becomes $6066.00 - $1000.00 = $5066.00
On April 28th: $628.00 purchase is made, so the new balance becomes $5066.00 + $628.00 = $5694.00
Therefore, the ending balance on Jerry's credit card statement at the end of April is $5694.00.
Step-by-step explanation:
Helpppppppppppppppppp
The model below represents an equation. IN Which represent like terms in the model of the equation? and and T Save and Exit Next Mark this and return Ei O Type here to search NEWD HELP ASAP PLSSS
Answer:
x x x and 1 1 1
Step-by-step explanation:
3rd option is the correct answer.
What is the quotient of 1/10 and 9/10
Answer:
1/9 = 0.1111111
Step-by-step explanation:
A rectangular prism is made up of 36 unit cubes and is 3 unit cubes high choose two possible combinations of width and length for the prism
A) 2 cubes wide and 6 cubes long
B) 3 cubes wide and 12 cubes long
C) 4 cubes wide and 3 cubes long
D) 5 cubes wide and 7 cubes long
E) 6 cubes wide and 6 cubes long
I think (i said think) the answer is E
Use the formula kilowatt-hour (kWh) = watts x hours used per day / wattage.
To estimate the maximum kilowatt-hour that each appliance uses per day, per month, and per year. write your answers in scientific notation with a single-digit multipler. Assume 30 days per month and 365 days per year.
2. which appliance uses the least amount of energy per day?
3. which appliance uses the most amount of energy per year? Show your work.
Television - Wattage: 300 Hours per day: 6
Clothes dryer - Wattage: 2,790 Hours per day 4
Refrigerator - Wattage: 225 Hours per day: 24
Find the kWh per day, kWh per month, and kWh per year.
Write all of them in scientific notation.
The clothes dryer uses the maximum energy at 1.018 × 10⁶ kilowatt-hour
Kilowatt-hours are primarily used to sell electrical energy to customers. A device's power consumption in kilowatts, operating time in hours, and price per kilowatt-hour are multiplied to get the cost of running it. Utility companies' charges for power may vary based on the customer's consumption patterns over time. Prices vary widely depending on the location. Prices in the US can differ by a factor of three between states.
A composite energy unit called a kilowatt-hour is defined as one kW sustained for (and multiplied by) one hour. It is equivalent to 3600 kilojoules, or 3.6 MJ, when expressed in the joule (symbol J), the SI's base unit of energy.
So from the given conditions the television uses the least amount of energy per day at 300 kilowatt-hour.
The amount of energy per year:
Television = 300 × 365 = 1.095 × 10⁵ kilowatt-hour
Dryer = 2790 × 365 = 1.018 × 10⁶ kilowatt-hour
Refrigerator = 225 × 365 = 8.213 × 10⁴ kilowatt-hour
Hence the maximum energy is used by the Dryer.
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Given f(x) = 1/2 (3 - x) ^ 2, what is the value of f(15)?
If Given f(x) = 1/2 (3 - x) ^ 2 , the value of f(15) is 72.
What is function?
In mathematics, a function is a relationship between two sets of elements, called the domain and the range, such that each element in the domain is associated with a unique element in the range. In simpler terms, a function is a set of rules that takes an input value and produces a corresponding output value.
The given function is:
f(x) = 1/2 (3 - x)²
To find the value of f(15), we need to substitute 15 for x in the function:
f(15) = 1/2 (3 - 15)²
Here, we subtract 15 from 3 to get -12 in the parentheses, and then we square it to get 144. We can simplify the expression further by multiplying 144 by 1/2, which gives us 72:
f(15) = 1/2 (144)
f(15) = 72
Therefore, the value of f(15) is 72.
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According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), and the National Institutes of Health (NIH), 41% of college students nationwide engage in "binge drinking" behavior, having five or more drinks on one occasion during the past two weeks. A college president wonders if the proportion of students enrolled at her college that binge drink is lower than the national proportion. In a commissioned study, 462 students are selected randomly from a list of all students enrolled at the college. Of these, 162 admitted to having engaged in binge drinking.
Required:
Using the most conservative estimate, what sample size would be required to reduce the margin of error to 2 percentage points?
Answer:
The sample size required is 2188.
Step-by-step explanation:
The (1 - α)% confidence interval for the population proportion is:
\(CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\)
The margin of error for this interval is:
\(MOE= z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\)
The information provided is:
X = 162
n = 462
MOE = 0.02
Assume the confidence level as 95%.
Compute the sample proportion as follows:
\(\hat p=\frac{X}{n}=\frac{162}{462}=0.351\)
The z-critical value for 95% confidence interval is:
\(z_{0.025}=1.96\)
Compute the sample size required as follows:
\(MOE= z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\)
\(n=[\frac{z_{\alpha/2}\times \sqrt{\hat p(1-\hat p)}}{MOE}]^{2}\)
\(=[\frac{1.96\times\sqrt{0.351(1-0.351)}}{0.02}]^{2}\\\\=2187.781596\\\\\approx 2188\)
Thus, the sample size required is 2188.
The value of a machine depreciates at the rate of 10% per annum. It was purchased 3 years ago. If its present value is Rs 43740, find its purchase price.
pls anwer in details! no spam...
Given
present value of the machine : Rs 43,740Rate of depreciation per annum : 10%To find
Purchase value of the machine ( 3 years before )Let the purchase value be P,
ATQ,
P -3 x 0.1P = Rs 43,740
P-0.3P = Rs 43,740
0.7P = Rs 43,740
P = Rs 43,740/0.7
P = Rs 62,486 (approx)
Hence, the purchase value of the machine would be Rs 62,486
Which of the following is the graph of a quartic function?
The graph(C) of a quartic function which is correct option(B)
What is graph?
A graph can be defined as a pictorial representation or a diagram that represents data or values.
Quartic polynomials are continuous curves like the cubic polynomials.
This means that can draw the graph of the quartic without lifting your pencil from the page.
There are no holes or jumps in the curve but, unlike the cubic graph, a graph of the quartic looks like a U, W or an M.
Thus, the graph(C) of a quartic function
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mark is baking blueberry muffins for a school fundraiser the recipe calls for one cup of vegetable oil for every 12 muffins how much bVegetable oil will mark need if you want to make 60 muffins for the fun raiser
Answer:
5 cups of vegetable oil
Step-by-step explanation:
Measure the length and width of a rectangular room in your house/apartment in feet. Determine the area of the room in square feet. Convert the area to both square inches and square yards. Explain how you made these conversions. When would you want to have the area in square feet? Square inches? Square yards?
Then measure the height of the room in feet. Calculate the volume of the room in cubic feet. Convert the volume to both cubic inches and cubic yards. Explain how you made these conversions. When would you want to have the area in cubic feet? Cubic inches? Cubic yards?
1) The area of the room in square feet, square inches, and square yards is as follows:
Area = 120 ft²
Area = 1,440 in²
Area = 40 yards²
2) The volume of the room in cubic feet, cubic inches, and cubic yards is as follows:
Volume = 1,440 ft³
Voluem = 17,280 in²
Volume = 480 yards²
What are the conversion rates?The conversion rates are:
1 foot equals 12 inches 3 feet are equivalent to 1 yard.The mathematical operations of multiplication and division are used.
Data and Calculations:Let the length = 12 feet
Let the width = 10 feet
Let the height = 12 feet
1 foot = 12 inches
3 feet = 1 yard
Area = 120 ft² (12 x 10)
Area = 1,440 in² (120 x 12)
Area = 40 yards² (120/3)
Volume = 1,440 ft³ (12 x 10 x 12)
Voluem = 17,280 in² (1,440 x 12)
Volume = 480 yards² (1,440/3)
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Which of the following is the equation of a line with a slope of -5/9
Answer:
Please help me important question in image
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Step-by-step explanation:
Please help me important question Please help me important question in image
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Please help me iPlease help me important question in image
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The temperature at 1:00 pm was 94° F and it was
82° F at 10:00 pm. Find the average rate of change
in degrees Fahrenheit per hour. Write a sentence
interpreting the slope as an average rate of change.
Be sure to include units in your answer.
The temperature dropped an average of 3 Fahrenheit per 1 hour.
The slope = -3/1
7).
2. Hot Text: For each graph, choose the correct sentence to describe the graph.
The graph represents a proportional relationship.
The graph does not represent a proportional relationship.
a. The graph represents a proportional relationship.
b. The graph does not represent a proportional relationship.
c. The graph does not represent a proportional relationship.
d. The graph represents a proportional relationship.
What is a proportional relationship?A proportional relationship is a relationship in which a constant ratio between the output variable and the input variable exists.
The equation that defines the proportional relationship is a linear function with slope k and intercept zero presented as follows:
y = kx.
Hence graphs a and d represent proportional relationship, as they have intercepts at the origin.
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Christina read 7 pages in a magazine she read 5 times as many pages in a book how many pages did christina read altogether
I need help my sister needs help and she is in 4th grade and I am in 10th so I don’t know how to do her homework
Answer:
42 Pages
Step-by-step explanation:
7x5=35
7+35=42
I need helllpppp
ppllsssss
Answer:
C
Step-by-step explanation:
Tip a positive number multiplied to a negative number is negative
2.8(g − 6) + 1.06 = 6.66
G= ?
Answer:
g = 8
Step-by-step explanation:
Hello!
We can solve for g by isolating the variable.
Solve for g2.8(g - 6) + 1.06 = 6.662.8g -16.8 + 1.06 = 6.66 => Distribute2.8g - 15.74 = 6.66 => Simply LHS2.8g = 22.4 => Add 15.74g = 8 => Divide by 2.8The value of g is 8.
Answer:
\( \sf \: g = 8\)
Step-by-step explanation:
Now we have to,
→ find the required value of g.
The equation is,
→ 2.8(g - 6) + 1.06 = 6.66
Then the value of g will be,
→ 2.8(g - 6) + 1.06 = 6.66
→ 2.8g - 16.8 = 6.66 - 1.06
→ 2.8g - 16.8 = 5.6
→ 2.8g = 5.6 + 16.8
→ g = (22.4)/(2.8)
→ [ g = 8 ]
Hence, the value of g is 8.
Need the correct answers for this. Can you help me?
The length of PQ is 3√5 and its slope is -2
The length of SR is 3√5 and its slope is -2
The length of SP is 5√2 and its slope is -7
The length of RQ is 5√2 and its slope is -1
So PQ ≅ SR and SP ≅ RQ. By the Perpendicular Bisector theorem, adjacent sides are perpendicular. By the selection of side, ∠PSR, ∠SRQ, ∠RQP and ∠QPS are right angles. So, the quadrilateral is a rectangle.
Understanding QuadrilateralTo find the lengths and slopes of the sides of the quadrilateral PQRS, we apply the distance formula:
D = \(\sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2}\)
and the slope formula:
m = \(\frac{y_{2} - y_{1}}{x_{2} - x_{1}}\)
1. Length PQ:
Using the distance formula, the length PQ can be calculated as follows:
PQ = \(\sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2}\)
= √((3 - 0)² + (-4 - 2)²)
= √(3² + (-6)²)
= √(9 + 36)
= √45
= 3√5
2. Length SR:
Using the distance formula, the length SR can be calculated as follows:
SR = \(\sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2}\)
= √((1 - (-2))² + (-5 - 1)²)
= √((1 + 2)² + (-6)²)
= √(3² + 36)
= √(9 + 36)
= √45
= 3√5
3. Length SP:
Using the distance formula, the length SP can be calculated as follows:
SP = \(\sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2}\)
= √((1 - 0)² + (-5 - 2)²)
= √(1² + (-7)²)
= √(1 + 49)
= √50
= 5√2
4. Length RQ:
Using the distance formula, the length RQ can be calculated as follows:
RQ = \(\sqrt{(x_{2} - x_{1})^2 + (y_{2} - y_{1})^2}\)
= √((-2 - 3)² + (1 - (-4))²)
= √((-2 - 3)² + (1 + 4)²)
= √((-5)² + 5²)
= √(25 + 25)
= √50
= 5√2
Now, let's calculate the slopes of the sides:
1. Slope PQ:
The slope of PQ can be calculated using the slope formula:
m = \(\frac{y_{2} - y_{1}}{x_{2} - x_{1}}\)
= (-4 - 2) / (3 - 0)
= -6 / 3
= -2
2. Slope SR:
The slope of SR can be calculated using the slope formula:
m = \(\frac{y_{2} - y_{1}}{x_{2} - x_{1}}\)
= (-5 - 1) / (1 - (-2))
= -6 / 3
= -2
3. Slope SP:
The slope of SP can be calculated using the slope formula:
m =\(\frac{y_{2} - y_{1}}{x_{2} - x_{1}}\)
= (-5 - 2) / (1 - 0)
= -7 / 1
= -7
4. Slope RQ:
The slope of RQ can be calculated using the slope formula:
m = \(\frac{y_{2} - y_{1}}{x_{2} - x_{1}}\)
= (1 - (-4)) / (-2 - 3)
= 5 / (-5)
= -1
Therefore, the lengths and slopes of the sides of the quadrilateral PQRS are:
Length PQ: 3√5
Length SR: 3√5
Length SP: 5√2
Length RQ: 5√2
Slope PQ: -2
Slope SR: -2
Slope SP: -7
Slope RQ: -1
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PLZ HELP. DUE NOW!!!!!
Since every centipede that Ricky has seen has 30 legs, he concludes that all centipedes have 30 legs. Is Ricky correct? Explain.
a) Ricky is correct because inductive reasoning yields certain truths.
b) Ricky is not necessarily correct, as his premise does not support his conclusion.
c) Ricky is not necessarily correct, as inductive reasoning does not yield certain truths.
d) Ricky is correct because his conclusion is supported by the premise.
Answer:
a because centi means 100 so he was wrong from the start and ...how the heck did he count em
Step-by-step explanation:
Answer: Ricky is correct because his conclusion is supported by the premise.
Step-by-step explanation: "a previous statement or proposition from which another is inferred or follows as a conclusion." = PREMISE
HIS PREMISE LED TO AN INFERRED CONLUSION
Determine whether the two triangles are similar. Explain your reasoning. Write a similarity statement comparing theIf you say the answer is QPN and PQNtriangle on the top to the triangle on the bottom. If the triangles are not similar, enter NA.MNQРYes X byAA similarity X Triangle LMN is similar to Triangle NoSides not proportionalSSS similaritySAS similarityAngles not congruent
Triangle LMN is similar to the QPN by the AA theorem because it stated that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar, since sides LM and PQ are parallel the measurement for angle L is equal to angle Q and by vertical angles N is the same on both triangles.
Yes, by AA similarity Triangle LMN is similar to QPN.
Can someone help me..
Answer:
13 and 1/2
Step-by-step explanation:
1/2 gets 4 1/2
1 1/2 could be tbroken down to
1/2+1/2+1/2 each half gets you 4 1/2
so 4 1/2+4 1/2 +4 1/2 =13 1/2
50 points+ Brainliest PLEASE SHOW WORK!!!!
(i can only give brainliest if at least 2 people answer)
Answer:
here
Step-by-step explanation:
we can do it by using the formula like
mean; efx÷n
median =n+1÷2
mode =which is more
range=highest-smallest
Answer:
Step-by-stwe can do it by using the formula like
mean; efx÷n
median =n+1÷2
mode =which is more
range=highest-smallestep explanation:
A survey conducted by the U.S. department of Labor found the 48 out of 500 heads of households were unemployed. Compute a 99% confidence interval for the proportion of unemployed heads of households in the population. Round to three decimal places. (make sure to type a zero in front of the decimal place ie. 0.1 vs .1 otherwise your answer will be marked incorrect) Lower limit
Answer:
99% Confidence interval is given as;
Lower Limit = 0.062
Upper Limit = 0.130
Step-by-step explanation:
Given the data in the question;
x = 48
n = 500
sample proportion p = x/n = 48/500 = 0.096
with 99% confidence
significance level ∝ = 1 - 99% = 1 - 0.99 = 0.01
∝/2 = 0.01 / 2 = 0.005
Critical Z-value = \(Z_{\alpha /2\) = \(Z_{0.005\) = 2.576
Now,
Standard error of p : SE = √[ (p × ( 1 - p) / n ) ]
we substitute
SE = √[ (0.096 × ( 1 - 0.096) / 500 ) ]
SE = √[ (0.096 × 0.904) / 500 ]
SE = √[ 0.086784 / 500 ) ]
SE = 0.0131745
so
Margin of Error E = \(Z_{\alpha /2\) × SE
E = 2.576 × 0.0131745
E = 0.0339
Now 99% confidence interval will be
⇒ 0.096 ± 0.0339
⇒ (0.096 - 0.0339, 0.096 + 0.0339 )
⇒ ( 0.062, 0.130 )
Lower Limit = 0.062
Upper Limit = 0.130
Reread the three paragraphs that begin at the top of page 2 and end on page 3. How does the flashback in these paragraphs advance the plot
The way the flashback in these paragraphs advance the plot is C. It introduces Evan's motivation for working in the garden with Grandfather.
What is Flashback Narrative?The technique of flashback in storytelling involves interrupting the chronological order of events to depict an earlier event or scene. It uses time travel to furnish the audience with necessary backstory, context, or a deeper understanding of the characters.
The technique of flashbacks is frequently employed as a means of divulging previous occurrences, recollections, or incidents that hold significance to the present narrative being conveyed.
Hence, it can be seen from the given text that the use of flashback helps show the motivation which Evans had for working in the garden with Grandfather
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Another one the last one ASAP
Answer:
13m²
Step-by-step explanation:
Area=6.5*4÷2=13
Answer:
13m
Step-by-step explanation:
1/2 × bas × perpendicular height
Inga is solving 2x2 + 12x – 3 = 0. Which steps could she use to solve the quadratic equation? Select three options. 2(x2 + 6x + 9) = 3 + 18 2(x2 + 6x) = –3 2(x2 + 6x) = 3 x + 3 = Plus or minus StartRoot StartFraction 21 Over 2 EndFraction EndRoot 2(x2 + 6x + 9) = –3 + 9
The step that Inga could use to solve the quadratic equation is;
2(x² + 6x + 9) = 18 + 3.
How to solve quadratic equations?The solution to the quadratic equation is calculated as follows;
2x² + 12x - 3 = 0
Add 3 to both sides to get;
2x² + 12x = 3
Divide through by 2 which is the coefficient of x² to get;
x² + 6x = ³/₂
Square half of the coefficient of x, and then add it both sides of the equation to get;
(x + 3)² = ³/₂ + 3²
x² + 6x + 9 = 9 + ³/₂
2(x² + 6x + 9) = 18 + 3
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In 1995, wolves were introduced into Yellowstone Park.
The function `w\left(x\right)=14\cdot1.08^{x}` models the number of wolves, `w`, in the years since 1995, `x`.
Determine the value of `w(25)`.
What does this value say about the wolf population?
Answer:
w(25) = 96
There are 96 wolves in the year 2020
Step-by-step explanation:
Given:
\(w(x)=14\cdot 1.08^{x}\)
w(25) =
\(w(25)=14\cdot 1.08^{25}\\\\= 14 * (6.848)\\\\=95.872\\\\\approx 96\)
Number of years : 1995 + 25 = 2020
In 2020, there are 96 wolves