Rewrite the expression for y when x>5 without absolute values: y = 2x + 4
Rewrite the expression for y when -2<x<5 without absolute values: y = 2x - 6
How to solve:Given the absolute values given:
1. y = |x-3| + |x+2| - |x-5| if x>52. y = |x-3| + |x+2| - |x-5| if -2If we rewrite without the absolute value for the condition, then there would be different values for y as shown above which is:
y = (x-3) + (x+2) - (x-5)
y = 2x + 4
Rewrite the expression for y when -2<x<5 without absolute values:
y = (x-3) + (x+2) - (5-x)
y = 2x - 6
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Find the number of sides of a polygon if the sum of the measures of its interior angles is twice the sum of the measures of its exterior angles.
Answer:
n=6 sides
Step-by-step explanation:
We know that the sum of Interior angles of Polygon = 180(n-2)
Sum of Exterior angles of Polygon = 360
so 180(n-2)=2x360
Therefore, by solving we get n=6 sides.
The number of sides of a regular polygon is 6 sides.
What is the formula for interior angle of a regular polygon?The formula for calculating the sum of interior angles is (n-2)×180° where is the number of sides. All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is: interior angle of a polygon = sum of interior angles ÷ number of sides.
Given that, the sum of the measures of its interior angles is twice the sum of the measures of its exterior angles.
We know that, the sum of the measures of its exterior angles is 360°.
Now, the sum of the measures of its interior angles
= 2×360°
= 720°
Now, (n-2)×180°=720°
n-2=4
n=6
Therefore, the number of sides of a regular polygon is 6 sides.
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Assume that Ryan does save 10% for
retirement. If he allocates the remainder of his
take-home pay to entertainment, then what
percent of his total budget will entertainment
comprise? How much money will be budgeted
towards entertainment each month?
Entertainment will comprise 90% of Ryan's total budget. The amount budgeted towards entertainment each month will be 90% of his take-home pay.
What is the frequency?The number of periods or cycles per second is called frequency. The SI unit for frequency is the hertz (Hz). One hertz is the same as one cycle per second.
According to the given information:Let's assume Ryan's take-home pay is P dollars.
Given that Ryan saves 10% of his take-home pay for retirement, he will save 0.10P dollars.
The remainder of his take-home pay after saving for retirement will be 90% of his take-home pay, which is 0.90P dollars.
Now, if Ryan allocates the remainder of his take-home pay to entertainment, the percentage of his total budget that entertainment will comprise can be calculated as:
Percentage of entertainment budget = (Entertainment budget / Total budget) * 100
Since the entertainment budget is 0.90P dollars and the total budget is P dollars, the percentage of his total budget that entertainment will comprise is:
Percentage of entertainment budget = (0.90P / P) * 100
Percentage of entertainment budget = 90%
So, entertainment will comprise 90% of Ryan's total budget.
The amount of money budgeted towards entertainment each month will be 0.90P dollars, which is 90% of his take-home pay.
Therefore, Entertainment will comprise 90% of Ryan's total budget. The amount budgeted towards entertainment each month will be 90% of his take-home pay.
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Suav just started a running plan where he runs 20 miles the first week and then increases the number of miles he runs by 5% each week. If he keeps up this plan for 25 weeks, how many total miles would Suav have run, to the nearest whole number?
Suav would have run approximately [tex]$970$[/tex] miles in [tex]$25$[/tex] weeks, to the nearest whole number.
What are the whole numbers?
Whole numbers are the set of numbers that include all positive integers (1, 2, 3, ...) as well as zero (0). Whole numbers do not include any negative numbers or fractions. Therefore, the set of whole numbers is {0, 1, 2, 3, ...}.
Suav runs [tex]$20$[/tex] miles the first week. Let's use a formula to calculate the number of miles he runs in subsequent weeks. Let [tex]$m$[/tex] be the number of miles he runs in a particular week, and [tex]$w$[/tex] be the number of weeks elapsed since the first week. Then, we have:
[tex]$$m = 20 \cdot 1.05^{w-1}$$[/tex]
This formula takes into account the [tex]$5%$[/tex] increase in miles each week, starting from the initial [tex]$20$[/tex] miles in the first week.
To find the total number of miles Suav runs over [tex]$25$[/tex] weeks, we can sum up the miles he runs in each week using the formula above. That is,
[tex]$$\text{Total miles} = 20 + m_2 + m_3 + \cdots + m_{25}$$[/tex]
where [tex]$m_2, m_3, \ldots, m_{25}$[/tex] are the number of miles he runs in the second to [tex]25$th[/tex] week, respectively.
We can use the formula for [tex]$m$[/tex] to find each of these values. For example, the number of miles he runs in the second week is:
[tex]$$m_2 = 20 \cdot 1.05^{2-1} = 21$$[/tex]
Similarly, we can find the number of miles he runs in each of the other weeks:
[tex]m_3 &= 20 \cdot 1.05^{3-1} = 22.05[/tex]
[tex]m_4 &= 20 \cdot 1.05^{4-1} = 23.103[/tex]
[tex]&\vdots[/tex]
[tex]m_{25} &= 20 \cdot 1.05^{25-1} = 57.597[/tex]
Now, we can substitute these values into the formula for the total miles and simplify:
[tex]\text{Total miles} &= 20 + 21 + 22.05 + \cdots + 57.597 \&\approx 970[/tex]
Therefore, Suav would have run approximately [tex]$970$[/tex] miles in [tex]$25$[/tex] weeks, to the nearest whole number.
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Answer
well if it is 5% each week, then it would be 20 +1. doing this for 25 weeks means it would be 20 + 25 then.
Sorry if wrong. i don't know if u do 5% after each time or from the main number. it doesn't say weather or not.
Step-by-step explanation:
p lz give me brainliest
1/3 of the dozen fruits in a fruit seller cart are apple. If 1/4 of all the fruits are oranges and the rest of the fruits are bananas, find how many dozen bananas are there in the fruits sellers cart
Apples make up one-third of the dozen fruits in a fruit vendor cart. If bananas make up the remaining fruit and oranges make up 1/4 of the total fruit, there are 2.5 dozen bananas in the fruit vendor's cart.
First, let's calculate how many apples are in the cart:
1/3 of 6 dozen fruits = 2 dozen fruits are apples
Next, let's calculate what proportion of the fruits are oranges:
1/4 of all fruits = (1/4) x 6 dozen = 1.5 dozen fruits are oranges
To find the number of dozen bananas, we can subtract the number of dozen apples and oranges from the total number of dozen fruits in the cart:
Total number of dozen fruits = 6 dozen
Number of dozen apples = 2 dozen
Number of dozen oranges = 1.5 dozen
Number of dozen bananas = Total number of dozen fruits - Number of dozen apples - Number of dozen orangesNumber of dozen bananas = 6 dozen - 2 dozen - 1.5 dozen
Number of dozen bananas = 2.5 dozen
Therefore, there are 2.5 dozen bananas in the fruit seller's cart.
The complete question is:-
1/3 of the 6 dozen fruits in a fruit seller cart are apple. If 1/4 of all the fruits are oranges and the rest of the fruits are bananas, find how many dozen bananas are there in the fruits sellers cart
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10
What is the decimal multiplier to decrease by 3.4%?
Answer:
0.96%
Step-by-step explanation:
do not answer with 0.966% it WILL be wrong and is a VERY common calculation error due to a very small mistake
8,3,6,5,9,2 all are divisible by one same no.
what is it?
Answer:
Ignore this my answer is wrong
27, Two of the smallest mammals on Earth
are the bumblebee bat and the Etruscan
pygmy shrew. How much shorter is the
bat than the shrew?
Therefore, the bumblebee bat is 0.5 centimeters shorter than the Etruscan pygmy shrew.
What is inequality?Inequalities are used in many areas of mathematics, including algebra, calculus, and geometry. They are also used in other fields such as economics, physics, and engineering to model real-world situations where values can vary within certain bounds. Solving inequalities involves finding the set of values that satisfy the inequality. This can be done using algebraic techniques such as adding or subtracting the same quantity from both sides of the inequality, multiplying or dividing both sides of the inequality by a positive number, or using the properties of absolute value. The solution to an inequality is often expressed as an interval or a set of numbers that satisfy the inequality.
Here,
According to the Guinness World Records, the bumblebee bat is the smallest mammal in the world, measuring only about 3 centimeters in length, while the Etruscan pygmy shrew measures about 3.5 centimeters in length.
To find out how much shorter the bat is than the shrew, we can subtract the length of the bat from the length of the shrew:
3.5 cm - 3 cm = 0.5 cm
The bumblebee bat and the Etruscan pygmy shrew are both very small mammals, but the bumblebee bat is actually shorter than the Etruscan pygmy shrew.
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what fraction is most often used to approximate pi?
The fraction that is most often used to approximate pi is 22/7
What fraction is most often used to approximate pi?The fraction 22/7 is often used to approximate pi. This is because 22/7 is a common fraction that is close to the decimal approximation of pi, which is 3.14159265359...
While pi is an irrational number that cannot be expressed as a finite decimal or fraction, 22/7 is a commonly used approximation that is easy to remember and gives a reasonable estimate of pi to two decimal places.
However, it is important to note that there are other fractions that can be used to approximate pi with greater accuracy, such as 355/113, which is accurate to six decimal places.
Nonetheless, 22/7 remains a popular approximation of pi in various contexts, from mathematics and engineering to everyday life.
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Crook Island is 25 km due east of the Isle of Strutay.
Grass Rock is 21 km due south of Crook Island.
Emerald Cay is 19 km due east of Grass Rock.
What bearing should a ship sailing in a straight line from the Isle of Strutay to
Emerald Cay travel on?
Give your answer in degrees to 1 d.p.
The ship sailing in a straight line from the Isle of Strutay to Emerald Cay should travel on a bearing of approximately 72.6°.
How to calculate the bearingWe can use the Law of Cosines to find this angle. Let's call this angle θ.
cos θ = (a² + b² - c²) / (2ab)
where a is the distance between the Isle of Strutay and Crook Island (25 km), b is the distance between Crook Island and Emerald Cay (40 km), and c is the distance between the Isle of Strutay and Emerald Cay (65 km).
cos θ = (25² + 40² - 65²) / (2 x 25 x 40)
cos θ = 0.275
θ = cos⁻¹(0.275)
θ ≈ 72.6°
Therefore, the ship sailing in a straight line from the Isle of Strutay to Emerald Cay should travel on a bearing of approximately 72.6° (east of north).
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what are the odds of answering at least 9 questions correctly out of 15 by choosing at random (and all questions are multiple choice and have 4 choices) ?
The odds of answering at least 9 questions correctly out of 15 by choosing at random is approximately 0.120
To solve this problem, we can use the binomial distribution, which models the probability of getting a certain number of successes in a fixed number of independent trials, each with the same probability of success.
In this case, we have 15 independent trials (the 15 questions) and the probability of success in each trial is 1/4 (the probability of guessing the correct answer among 4 choices). We want to find the probability of getting at least 9 successes.
Using a binomial distribution calculator, we can calculate this probability as
P(X ≥ 9) = 1 - P(X < 9) = 1 - binomcdf(15, 1/4, 8) ≈ 0.120
where binomcdf is the cumulative distribution function of the binomial distribution, which gives the probability of getting up to a certain number of successes (in this case, up to 8). The complement of this probability (1 minus the probability of getting up to 8 successes) gives the probability of getting at least 9 successes.
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Twenty students measure their height for an experiment in their science classroom how can a line plot help the students analyze your results
A line plot can be a useful tool for the students to analyze their results because it allows them to easily see the distribution of heights among the 20 students. By plotting each student's height as a dot above a number line, the students can quickly see how many students fall into each height range and identify any outliers or patterns in the data.
For example, if most of the dots fall within a small range of heights, the students can see that there is a cluster of heights in that range. Conversely, if there are only a few dots in a particular height range, the students can see that there is less variation in that range.
The line plot can also help the students to identify the mode, which is the most common height among the students, and the median, which is the middle height when the heights are ordered from smallest to largest. These measures of central tendency can help the students to understand the typical height of their classmates and how much variation there is in the data.
Overall, a line plot is a simple and effective way for the students to visualize and analyze their height data, and it can help them to draw meaningful conclusions about the distribution of heights among the 20 students.
I need help!
What is the perimeter of the rectangle pictured below? Show all work for full credit.
Answer:
≈38.57 units.
Step-by-step explanation:
To find the perimeter of a rectangle, we need to add up the lengths of all its sides.
First, gather the coordinates:
R - (4, 5)
U - (8, -3)
F - (-6, 0)
O - (-2, -8)
Using the coordinates given, we can calculate the lengths of the sides of the rectangle using the distance formula:
d = √((x2 - x1)^2 + (y2 - y1)^2)
So, for the rectangle with vertices R, U, F, and O, we have:
Side RU: d = √((8 - 4)^2 + (-3 - 5)^2) = √(16 + 64) = √80
Side UF: d = √((-6 - 8)^2 + (0 - (-3))^2) = √(196 + 9) = √205
Side FO: d = √((-6 - (-2))^2 + (0 - (-8))^2) = √(16 + 64) = √80
Side OR: d = √((-2 - 4)^2 + (-8 - 5)^2) = √(36 + 169) = √205
Since opposite sides of a rectangle are congruent, we have RU = FO and UF = OR. Therefore, the perimeter of the rectangle is:
Perimeter = RU + UF + FO + OR
Perimeter = √80 + √205 + √80 + √205
Perimeter ≈ 38.57
Therefore, the perimeter of the rectangle is approximately 38.57 units.
PLEASE HELP ME WITH THIS!!!
Which function will produce the graph below?
Answer: The second piece-wise function, f(x), will produce the graph given.
Classify each number as rational or irrational.
Drag the choices into the boxes to correctly complete the table.
Answer:
only [tex]\sqrt{101}[/tex] is irrational
Step-by-step explanation:
an irrational number cannot be expressed as a fraction
0.329 = 329/1000
127.5 = 1275/10
-89 = -89
[tex]\sqrt[3]{64}[/tex] = 4
Giving 26 brainly points
Review
Directions: Simplify the following by subtracting the exponents.
1.
8r6
__
8r
2.
s5t4
____
s2t3
3.
3q2r2s
____
3qrs
4.
x3y6z
_____
x2y2z
5.
m7n3o
_____
m2n2o
6.
x4
___
x
7.
z3
___
z5
8.
a3b2
_____
ab2
9.
d4f3
_____
df
10.
mn2
_____
mn2
11.
10c5d6
______
10c4d3
12.
b8c4d2
________
b5c4d2
13.
xy
___
xy
14.
s2t4
_____
st
15.
m2n2
______
m4n4
Answer:
can you like write it out normally please, i can answer it then
Step-by-step explanation:
An item is regularly priced at $15. It is on sale for 85% off the regular price. What is the sale price
regular price is 100%, so if we take off 85% from that, that'd be 100% - 85% = 15%, so the sale price is really 15% of the regular price, well, we know regular price is $15.
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{15\% of 15}}{\left( \cfrac{15}{100} \right)15}\implies \text{\LARGE 2.25}[/tex]
which methods are best when you are dealing with seasonal data? mark all that apply
a. Exponential smoothing
b. Random walk
c. Simple moving averages
d. Autoregressive models
e. Regression based models
Exponential smoothing, simple moving averages, autoregressive models, and regression-based models are all commonly used methods for analyzing and forecasting seasonal data.
What is regression-based model?Regression-based models are statistical models that use the relationship between a dependent variable and one or more independent variables to predict or explain the behavior of the dependent variable. These models estimate the strength and direction of the relationships between the variables by fitting a regression line or curve to the observed data. They can be used for both descriptive and predictive purposes and are widely used in various fields, including economics, finance, marketing, and social sciences. Examples of regression-based models include linear regression, logistic regression, and time-series regression.
Here,
Seasonal data refers to data that exhibits regular patterns that repeat over a fixed time period, such as weekly, monthly, or yearly. The methods that are best for dealing with seasonal data are those that take into account the regular patterns and fluctuations in the data over time. Methods that are best when you are dealing with seasonal data:
a. Exponential smoothing
c. Simple moving averages
d. Autoregressive models
e. Regression based models
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A forester stands on level ground an unknown distance from a large tree. The angle of elevation to the top of the tree is 37 degrees. When the forester moves 20 ft closer to the tree, the angle of elevation to the top of the tree is 52 degrees.
What is the height of the tree?
Using Trigonometric functions, the height of the tree is approximately 50.6 feet.
Let's call the height of the tree "h" and the distance between the forester's original position and the base of the tree "x". Then, when the forester moves 20 feet closer to the tree, the distance between the new position and the base of the tree is "x - 20".
We can use the tangent function to set up two equations relating the height of the tree to the angles of elevation:
tan(37°) = h/x ...(1)
tan(52°) = h/(x - 20) ...(2)
We can solve this system of equations to find the value of "h". First, we can rearrange equation (1) to get:
x = h/tan(37°)
Then, we can substitute this expression for "x" into equation (2) and solve for "h":
tan(52°) = h/(h/tan(37°) - 20)
Simplifying and solving for "h", we get:
h = (20 tan(52°) tan(37°)) / (tan(52°) - tan(37°))
Using a calculator, we can evaluate this expression and find that:
h ≈ 50.6 ft
Therefore, the height of the tree is approximately 50.6 feet.
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i need help and i can’t fine the right answer
The length of line segment AC is equal to 34 units.
What is the Tangent Secant Theorem?In Mathematics and Geometry, the Tangent Secant Theorem states that if a secant segment and a tangent segment are drawn to an external point outside a circle, then, the product of the length of the external segment and the secant segment's length would be equal to the square of the tangent segment's length.
By applying the Tangent Secant Theorem to this circle, we have the following:
DC² = AB × BC
15² = (3x + 1) × 9
225 = 27x + 9
27x = 225 - 9
27x = 216
x = 216/27
x = 8
Now, we can determine the length of AC;
AC = AB + BC
AC = 3x + 1 + 9
AC = 3(8) + 1 + 9
AC = 34 units.
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You are making saltwater taffy. In total, you’ve received 66 pounds of saltwater taffy from this batch. You split the batch into 3-pound bags of taffy. How many bags of saltwater taffy did you receive from this batch?
Can someone PLEASE HELP ME!!!
In a laboratory experiment, the population of bacteria in a petri dish started off at 7400 and is growing exponentially at 13% per hour. Write a function to represent the population of bacteria after t hours, where the rate of change per minute can be found from a constant in the function. Round all coefficients in the function to four decimal places. Also, determine the percentage rate of change per minute, to the nearest hundredth of a percent.
The function to represent the bacteria population after t hours is f(t) = 7400 * [tex]e^(0.13/60 * t)[/tex].
What is derivative?A derivative is a measure of how much a function changes as its input value changes. It is defined as the limit of the rate of change of the function with respect to its input as the change in the input approaches zero.
According to question:The function to represent the bacteria population after t hours, where the function's constant can be used to calculate the rate of change per minute is:
f(t) = 7400 * [tex]e^(0.13/60 * t)[/tex]
where:
f(t) = population of bacteria after t hours
e = Euler's number (approximately 2.71828)
t = time in hours
0.13/60 = rate of change per minute (converted from 13% per hour)
To determine the percentage rate of change per minute, we can calculate the derivative of the function with respect to time (t):
df/dt = 7400 * 0.13/60 * [tex]e^(0.13/60 * t)[/tex]
At t = 0 (the start of the experiment), the rate of change per minute is:
df/dt = 7400 * 0.13/60 * [tex]e^(0.13/60 * 0)[/tex] = 12.1166
To express this rate of change as a percentage, we can divide it by the initial population and multiply by 100:
rate of change per minute = (df/dt) / P(0) * 100% = 12.1166 / 7400 * 100% = 0.1638% (rounded to the nearest hundredth of a percent)
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In AABC,
48
48
50
Given: AQRS where m2 Q = 20° and m/S= 90°
1,000 meters
Q
What is the length, to the nearest meter, of RS?
R
S
The length of RS is approximately 73 meters (to the nearest meter).
What is Law of sines ?
The Law of Sines is a trigonometric formula that relates the side lengths of a triangle to the sine of its angles. It states that in any triangle ABC:
a / sin(A) = b / sin(B) = c / sin(C)
where a, b, and c are the side lengths of the triangle, and A, B, and C are the opposite angles.
This formula can be used to solve for the unknown sides or angles of a triangle when given enough information about the other sides and angles. The Law of Sines is especially useful when dealing with triangles that are not right triangles, or when only a few side lengths and angles are known.
According to the question:
We can solve this problem by using the Law of Sines and the fact that the sum of the angles in a triangle is 180 degrees.
First, we can find the measure of angle A in triangle ABC:
A = 180 - 48 - 48 = 84 degrees
Next, we can use the Law of Sines to find the length of side AC:
sin(84) / 50 = sin(48) / AC
AC = sin(84) * 50 / sin(48) ≈ 64.4
Now, we can use the fact that the sum of the angles in triangle AQS is 180 degrees to find the measure of angle QAS:
QAS = 180 - 20 - 90 = 70 degrees
Finally, we can use the Law of Sines again to find the length of RS:
sin(70) / RS = sin(48) / AC
RS = sin(70) * AC / sin(48) ≈ 72.6
Therefore, the length of RS is approximately 73 meters (to the nearest meter).
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What is the slope from -7,5 to -3,4? Please help
The slope or gradient of a line in mathematics is a numerical representation of the steepness and direction of the line and in the given situation the slope (m) is -1/4 respectively.
What do we mean by slope?In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction.
The slope-intercept form of an equation is used whenever the equation of a line is expressed in the form y = mx + b.
M represents the line's slope.
And b is the b in the point that is the y-intercept (0, b).
For instance, the slope and y-intercept of the equation y = 3x - 7 are 3 and 0, respectively.
So, the slope formula is:
m = y₂-y₁/x₂-x₁
Now, insert values as follows:
m = y₂-y₁/x₂-x₁
m = 4-5/-3-(-7)
m = -1/-3+7
m = -1/4
Therefore, in the given situation the slope (m) is -1/4 respectively.
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6^-5 in expanded form?
Answer: To write 6^-5 in expanded form, we need to first recall the definition of negative exponents. If a number a is raised to a negative exponent, it means that we take the reciprocal of a raised to the absolute value of the exponent. In other words:
a^(-n) = 1 / a^n
Using this definition, we can write:
6^-5 = 1 / 6^5
Now, we can expand 6^5 using repeated multiplication or by using a calculator. 6^5 means 6 multiplied by itself five times:
6^5 = 6 × 6 × 6 × 6 × 6 = 7776
Therefore, we can write:
6^-5 = 1 / 6^5 = 1 / 7776
So, the expanded form of 6^-5 is 1/7776.
Step-by-step explanation:
1.
Is the relation a function? Why or why not?
{(3, –1), (3, 0), (–3, 4), (3, 8)}
Yes; only one range value exists for each domain value.
No; the relation passes the vertical-line test.
No; three range values exist for domain value 3.
Yes; three range values exist for domain value 3.
The relation is not function . Because C)No; three range values exist for domain value 3.
What is function?
A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable). In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.
The given coordinates are {(3, –1), (3, 0), (–3, 4), (3, 8)}.
Here if 3 is output and -1 is input. We know that every function should have unique output.
In the given coordinates , we have 3 for three values.
Hence the correct option is C)No; three range values exist for domain value 3.
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can someone please help asap
Step-by-step explanation:
Equation of a circle
(x-h)^2 + (y-k)^2 = r^2
so the given circle has center at (h,k) = (5,-10)
new circle center will be at x = 1 left of 5 = 4 y = 2 down from -10 = -12
(4,-12)
Equation then becomes (x-4)^2 + ( y+ 12)^2 = 64
reflect shape A in the line x=-2
The mirror line will be on -2 on the x axis. Then from that, you reflect the shape
Find each length. Round to the nearest hundredth. 40. XZ
In right angle triangle ΔXYZ in which ∠XYZ = 90° and ∠XZY i= 25°.
YZ = 33 inch, the length of XZ to the nearest hundredth is approximately 13.99 inches.
What is trigonometric function?A trigonometric function is a mathematical function that relates the angles of a right triangle to the ratios of its sides. Three basic trigonometric functions are sine (sin), cosine (cos), and tangent (tan).
In a right triangle, if one angle is θ (where θ is not the right angle), then we can define the following trigonometric functions:
sine of θ (sin θ): the ratio of the length of the side opposite θ to the length of the hypotenuse
cosine of θ (cos θ): the ratio of the length of the adjacent side to the length of the hypotenuse
tangent of θ (tan θ): the ratio of the length of the side opposite θ to the length of the adjacent side
We can use the trigonometric function sine to relate the lengths of the sides in the right triangle XYZ. In particular, we know that:
sin(25°) = XZ / 33
To solve for XZ, we can multiply both sides by 33 and simplify:
XZ = 33 sin(25°)
XZ ≈ 13.99 (rounded to the nearest hundredth)
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The exact value of the volume of the sphere is V = 20.833π cm³ and the exact value is V = 64.45 cm³
What is the volume of the Sphere?A sphere is defined as symmetrical and round in shape. It is also referred to as a three dimensional solid, that has all its surface points at equal distances from the center.
The formula for the volume of a sphere is:
V = ⁴/₃πr³
where:
V = volume
r = radius
The radius of a sphere is half its diameter.
We are given diameter = 5cm
Thus: r = 5/2 = 2.5 cm
V = ⁴/₃π * 2.5³
V = 20.833π cm³
V = 64.45 cm³
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Omar invests £2800 for 3 years at 1.75% simple interest per year.
How much is the investment worth at the end of the 3 years?
Answer:
£2947
Step-by-step explanation:
the formula for simple interest is interest = prt.
p is the principal value, or what omar had at the beginning.
r is the rate at that you gain interest.
t is the amount of time in years.
so, plugging in our values, we multiply 2800*3*0.0175 to get 147.
now, since that was the amount of interest omar gained, we still have to add the original amount that he had, and 2800+147 = 2947.
so, the answer is £2947.