Answer:
answer is D
Step-by-step explanation:
express the function f(x)=1+|2x-5| in piecewise form without using absolute values
The function f(x)=1+|2x-5| in piecewise form without using absolute values will be f₁ = 4, f₂ = 2 and a = 5/2.
Given that,
f(x) = 1 + |2x - 5|
And,
f(x) = {f₁ x < a
{f₂ x ≥ a
Now,
We have,
f(x) = 1 + |2x - 5|
And,
By definition of absolute value,
|x| = {x x ≥ 0
{-x x < 0
And,
Given the absolute value,
|2x - 5|
Solve for x,
i.e.
2x - 5 = 0
We get,
x = 5/2 = 2.5
i.e.
a = 5/2
i.e.
For all values greater than x = 5/2, 2x - 5 is positive,
And,
For all values less than x = 5/2, 2x - 5 is negative.
So,
|x| = {x x ≥ 5/2
{-x x < 5/2
i.e.
|2x - 5| = {2x - 5 x ≥ 5/2
{-(2x - 5) x < 5/2
Now,
f(1) = 1 + |2(1) - 5|
We get,
f₁ = 4
And,
f(2) = 1 + |2(2) - 5|
We get,
f₂ = 2
Hence we can say that the function f(x)=1+|2x-5| in piecewise form without using absolute values will be f₁ = 4, f₂ = 2 and a = 5/2.
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f 75 grams of ice cream contains 10 grams of fat how many grams of fat would be in 150 grams of ice cream? Answer:
If 75 grams of ice cream contains 10 grams of fat, then 150 grams of ice cream would contain 20 grams of fat. The amount of fat is directly proportional to the weight of the ice cream.
We can set up a proportion to solve the problem. Let x represent the unknown amount of fat in 150 grams of ice cream. According to the given information, we have the proportion:
10 grams of fat / 75 grams of ice cream = x grams of fat / 150 grams of ice cream
To solve for x, we can cross-multiply and then divide:
10 * 150 = 75 * x
1500 = 75x
X = 1500 / 75 = 20
Therefore, 150 grams of ice cream would contain 20 grams of fat. This is because the ratio of fat to ice cream remains constant, so we can use this proportion to find the missing value.
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Find the missing number.
Increased
by 25
Decreased
by. %
The percentage by which the number has to be decreased is 20%.
What do you mean by algebraic expression?It represents a mathematical relationship or calculation. For example, the expression "2x + 3" is an algebraic expression that represents a linear equation with a variable x and constants 2 and 3. Algebraic expressions can be simplified, evaluated for specific values of the variables, and used to solve equations.
Given:
A number is increased by 25%
To find:
The percentage by which it has decreased
Solution:
The percentage by which the number has to be decreased is 20%.
We can find the percentage by following the given steps-
We know that a number increased by a percentage decreases by a different percentage.
Let us assume that the number is 100.
We know that this number has been increased by 25%.
So, the new number=100+25% of 100
=100+25/100×100
=100+25
=125
Now, the new number is 125.
Let us assume that this number has to be decreased by X% to obtain 100.
So, 125-X% of 125=100
125-X/100×125=100
125-1.25X=100
125-100=1.25X
25=1.25X
25×100/125=X
2500/125=X
X=20%
Therefore, the percentage by which the number has to be decreased is 20%.
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Use the binomial theorem to express (root 3 - root 2)^5 in the form a root 3 + root 2 where a and b are integers to be found
Binomial theorem allows us to expand expression (a + b)^n, where a and b are real numbers and n is a positive integer.Therefore, (root 3 - root 2)^5 can be expressed in form a√3 + b√2, a = 3 - 10 - 10√3 + 5√2 and b = -1.
Using the binomial theorem, we can expand this expression as follows:
(root 3 - root 2)^5 = C(5,0)(root 3)^5(-root 2)^0 + C(5,1)(root 3)^4(-root 2)^1 + C(5,2)(root 3)^3(-root 2)^2 + C(5,3)(root 3)^2(-root 2)^3 + C(5,4)(root 3)^1(-root 2)^4 + C(5,5)(root 3)^0(-root 2)^5
Simplifying each term, we get:
(root 3)^5 - 5(root 3)^4(root 2) + 10(root 3)^3(root 2)^2 - 10(root 3)^2(root 2)^3 + 5(root 3)(root 2)^4 - (root 2)^5
Further simplifying, we obtain:
3√3 - 10√6 + 15√2 - 10√(6√3) + 5√(2√3) - 2√32
Therefore, (root 3 - root 2)^5 can be expressed in the form a√3 + b√2, where a = 3 - 10 - 10√3 + 5√2 and b = -1.
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If you were dealing with a data set that fluctuates quarterly, what type of method would be best? a. Simple moving averages b. Autoregressive models c. Random walk d. Exponential smoothing
If I were dealing with a data set that fluctuates quarterly, I would recommend using autoregressive models.
option (b) is correct
This is because autoregressive models take into account the pattern of the previous values to predict future values. Simple moving averages and exponential smoothing are better suited for data sets with more consistent trends, while the random walk is not an ideal method for forecasting as it assumes that future values will be equal to the previous value with no pattern or trend. Therefore, autoregressive models would be the most appropriate method for forecasting a quarterly fluctuating data set.
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Assume incidences of flu fall into one of two groups in terms of age: a high number of flu symptoms that cluster at the top end of the age distribution or a high number of flu symptoms that cluster at the bottom end of the age distribution. What is true about a distribution of this type
It's important to note that these characteristics are based on the assumption given in the question, and real-world flu distributions can vary.
In a distribution of flu symptoms that clusters at either the top or the bottom end of the age distribution, the following characteristics can be observed:
Bimodal Distribution: The distribution will exhibit two distinct peaks or modes, indicating the two groups of flu symptoms. One peak will be located at the top end of the age distribution, while the other peak will be located at the bottom end.
Age Divide: The distribution suggests a clear divide in terms of age groups affected by flu symptoms. One group, typically the older age group, will experience a higher number of flu symptoms, while the other group, typically the younger age group, will experience a lower number of flu symptoms.
Skewed Distribution: The distribution will be skewed towards one end, either the higher end or the lower end, depending on where the majority of flu symptoms cluster. If the symptoms cluster at the top end, the distribution will be positively skewed, with a longer tail towards the higher ages. Conversely, if the symptoms cluster at the bottom end, the distribution will be negatively skewed, with a longer tail towards the lower ages.
Difference in Symptom Severity: The severity of flu symptoms may differ between the two age groups. If the symptoms cluster at the top end, the older age group may experience more severe symptoms compared to the younger age group. Conversely, if the symptoms cluster at the bottom end, the younger age group may experience more severe symptoms compared to the older age group.
It's important to note that these characteristics are based on the assumption given in the question, and real-world flu distributions can vary. The exact nature of the distribution will depend on various factors, including the specific population studied and the underlying causes of the flu symptoms.
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It is an EMERGENCY I NEED HELP ASAP PLEASE!!!!!!!!!!!!!!!!!!
Question :
The sales tax rate in New Mexico is 5.125%. Select all the equations that represent the sales tax, t, you
would pay in New Mexico for an item of cost c?
A. t = 5.125c
B. t = 0.5125c
C. t = 0.05125c
D. t = c = 0.05125
(E. t = 5.025 c
Answer:
C. t = 0.05125c
Step-by-step explanation:
First we have to understand the meaning of % sign. It is called percent or percentage. Where cent means 100. Now all we know that 100 cents make one dollar, that is why these 100 smaller units are called as cents.
Now if sales tax is 5.125 percent, remember that if there is $100 capital amount, it will be $5.125 tax.
Now how much would it be for $1?
simply, it will be $0.05125
Now for equation in option C
t = 0.05125 x 1
t = 0.05125
here you can see that the equation is satisfied.
So from this we can establish the equation that for any cost, the relation between tax and cost will be:
t = 0.05125c
Where can I find free SAT practice tests?
There are several resources where you can find free SAT practice tests, including:
1.Official SAT Practice Tests:
2.Khan Academy:
3.Ivy Global:
4.PrepScholar
5.CrackSAT
6.Peterson's
There are several resources where you can find free SAT practice tests, including:
1.Official SAT Practice Tests: The College Board, the organization that creates and administers the SAT, offers eight official practice tests for free on their website. These tests are the most accurate representation of the real exam.
2.Khan Academy: The College Board has partnered with Khan Academy to provide free SAT practice materials, including full-length practice tests and personalized study plans based on your performance.
3.Ivy Global: Ivy Global offers a free SAT practice test with answer explanations that mimic the actual test.
4.PrepScholar: Prep Scholar offers a free online SAT practice test that closely resembles the real exam.
5.CrackSAT : CrackSAT offers a wide range of free practice tests, including SAT Subject Tests.
6.Peterson's: Peterson's offers a free online practice test that includes a score report with detailed feedback.
Remember, the more practice you have, the more prepared you'll be for the SAT. So take advantage of these free resources and practice as much as you can.
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Will yall help me please help me i will help ya´ll whenever ya´ll need points just ask something or i will make things where i will get ya´ll some points just will help me on this quiestion..?
I dont even know if I did the first one right. May you please help me with my little sisters Homework, Idk what her teacher gives her
Answer:
we cant see it
Step-by-step explanation:
Answer:
Addition Property
Step-by-step explanation:
6x + 18 = 90 help me plz
Answer:
x = 12
Step-by-step explanation:
Combine like terms on both sides of the equation and simplify, isolating the variable on to one side of the equation:
6x + 18 = 90
6x = 72
x = 12
a study of data compiled from emergency departments reveals that the number of hospital visits for cooking-related knife injuries significantly increases around major holidays. what do the variables examined in the study show?
The variables examined in the study show the number of hospital visits for cooking-related knife injuries and their frequency during major holidays. The data compiled from emergency departments shows that there is a significant increase in the number of hospital visits for such injuries around major holidays.
This suggests that there may be a correlation between the holidays and the use of knives in cooking, possibly due to increased meal preparation and cooking during these times. Other variables that could be examined in further studies include the types of knives and cooking equipment used, the types of foods being prepared, and the demographics of those who sustain these injuries.
Variables refer to any characteristic, quantity, or attribute that can be measured and that can fluctuate or vary. Variables are of two types:
Dependent variablesIndependent variablesAn independent variable is one that is thought to influence the dependent variable, which is the characteristic or response that is being measured.
The variables examined in the study indicate that the number of hospital visits for cooking-related knife injuries increases around major holidays. This implies that there is a direct relationship between cooking and knife injuries on major holidays. As a result, measures must be put in place to reduce the risk of knife injuries during the holidays. This includes the creation of awareness campaigns and the promotion of safety in the kitchen.
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the
initial and terminal points of a vector are given. Write the vactor
as a linear combination of the standard unit vectors i and j.
initial point = (2,2)
terminal point = (-1,-4)
Considering the given values, initial point be (x1, y1) and terminal point be (x2, y2).
The vector AB is represented as-3i - 6j.
Then we have the following vector AB whose initial point is A(x1, y1) and terminal point is B (x2, y2).
Let's find out the vector AB:
AB(arrow over on top) = OB - OA
Where OA represents the vector whose initial point is O and terminal point is A(x1, y1) and similarly OB represents the vector whose initial point is O and terminal point is B(x2, y2).
Note: O represents the origin point or (0, 0).
Here is the graphical representation of vector AB.
We are given that,
initial point = (2, 2)
terminal point = (-1, -4)
So, here,
x1 = 2,
y1 = 2,
x2 = -1
y2 = -4O
A= (x1, y1)
= (2, 2)
OB= (x2, y2)
= (-1, -4)
AB = OB - OA
= (-1, -4) - (2, 2)
=-1i - 4j - 2i - 2j
= (-1 - 2)i + (-4 - 2)j
= -3i - 6j
So, the vector AB is represented as-3i - 6j.
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Find an equivalent expression using the Distributive Property.
g3(7+g)
7|3y – 4|– 8 = 48
Please help!
Answer: y=4 or y= 4 over 3
Step-by-step explanation:
Answer:
y=4
Step-by-step explanation:
ivy tech tuition was $3090 in 2010 and $3196 in 2015. calculate the slope, then create a linear model that would predict tuition for any year after 2010. assuming the linear trend remained constant, what would tuition be in 2,017?
If the linear trend remained constant, the tuition cost at Ivy Tech in 2017 would have been approximately $3256.40.
To calculate the slope of the line, we will use the formula:
slope = (y₂ - y₁)/(x₂ - x₁)
where y₂ is the tuition cost in 2015 ($3196), y₁ is the tuition cost in 2010 ($3090), x₂ is the year 2015, and x₁ is the year 2010. Plugging these values into the formula, we get:
slope = (3196 - 3090)/(2015 - 2010) = 106/5
Therefore, the slope of the line is 21.2.
Now that we have determined the slope, we can create a linear model that would predict tuition for any year after 2010. The formula for a linear model is:
y = mx + b
where y is the predicted tuition cost, m is the slope of the line, x is the year (with 2010 being 0), and b is the y-intercept (the tuition cost in 2010). Plugging in the values we have, we get:
y = 21.2x + 3090
This is the equation of the line that represents the linear relationship between year and tuition cost at Ivy Tech.
Finally, we can use this linear model to predict what the tuition cost would be in 2017. To do this, we simply plug in x = 7 (since 2017 is 7 years after 2010) and solve for y:
y = 21.2(7) + 3090 = 3256.4
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Find p(2) for the polynomial, p(x) = 3x (x - 2)
Answer:
p(2) = 0
Step-by-step explanation:
p(2) = 3(2)(2-2)
p(2) = 6(2-2)
p(2) = 6(0)
p(2) = 0
Frank pays 2.85 for a bag of 15 tangerines.
Find the unit price in dollars per tangerine.
If necessary, round your answer to the nearest cent.
Answer:
19 cents because 2.85/15=0.19ct and now we round it up its 20cents!
Step-by-step explanation:
Hope this helps!
Answer:
The answer is $0.19
Step-by-step explanation:
Divide 2.85 by 15.
2.85 ÷ 15 = 0.19
solve the equation. (find all the solutions of the equation in the interval [0,2pi). Enter your answer as a comma separated list. sin(4x)
The solutions of the equation sin(4x) in the interval [0,2pi) are x = 0, pi/4, pi/2, 3pi/4, pi.
To solve the equation sin(4x) in the interval [0,2pi), we need to find all the values of x that satisfy the equation.
The equation sin(4x) = 0 has solutions when 4x is equal to 0, pi, or any multiple of pi.
Solving for x, we get:
4x = 0, pi, 2pi, 3pi, 4pi, ...
Dividing each solution by 4, we find the corresponding values of x:
x = 0, pi/4, pi/2, 3pi/4, pi, ...
So, the solutions of the equation sin(4x) in the interval [0,2pi) are x = 0, pi/4, pi/2, 3pi/4, pi.
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Two window washers, Samir and Becky, lean a ladder against the side of a building so that
Samir can wash a window while Becky holds the ladder. The top of the ladder reaches the
window, which is 3 meters off the ground. The base of the ladder is 4 meters away from the
building. How long is the ladder?
Answer:
5 meters.
Step-by-step explanation:
The side of the building and the ground makes an angle of 90°. This means that we don't need to use sine or cosine law to find for the other side.
We can just simply use the Pythagorean Theorem which is
\({a}^{2} = {b}^{2} + {c}^{2} \\ {a}^{2} = {3}^{2} + {4}^{2} \\ a = \sqrt{9 + 16 } \\ = \sqrt{25} \\ a = 5\)
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.
y = (1/9)x^2
x = 5, y = 0; about the y-axis
The volume of a solid is found using the curve y = (1/9)x² and the line x=5. And the volume is found to be 625π/18 cubic units.
A volume of a solid is used to determine how much space a particular object will take. It tells the amount of space that is present in an object. For example, if we consider a cylinder and fill it with water, the amount of water it can hold is the cylinder's volume.
Given the equation is y = (1/9)x² and x=5, y=0; about the y-axis. From the graph, the larger radius R = 5 and the smaller radius r=x=√(9y). Then, the limit is written as follows,
when x=0, y=0
when x= 5, y = 1/9×(5)²=25/9
Now, the volume is calculated by using the integral as follows,
\(\begin{aligned}V&=\int^{25/9}_0 (\pi R^2-\pi r^2)\;dy\\&=\pi \int^{25/9}_0 ((5^2-(\sqrt{9y})^2)\;dy\\&=\pi \int^{25/9}_0 (25-9y)\;dy\\&=\pi\left[25y-\frac{9y^2}{2}\right]^{25/9}_{0}\\&=\pi\left[25\left(\frac{25}{9}-0\right)-\frac{9}{2}\left(\left(\frac{25}{9}\right)^2-0^2\right)\right]\\&=\pi \left[\frac{625}{9}-\frac{625}{18}\right]\\&=\frac{625 \pi}{18}\end{aligned}\)
The required answer is 625π/18 cubic units.
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mindy bought five eights of almonds and three forths of walnuts witch pair of fractions cannot be used to find how many pounds of nuts she bought in all
Answer:
9
Step-by-step explanation:
I'M TELLING U THE ANSWER IS 9
set up the integral that would give the volume v generated by rotating the region bounded by the given curves about the y-axis. y = x3, y = 0, x = 4
Integral setup The following equation can be used to determine the volume of a solid of revolution:
V = ∫[a, b] A(x) dx where A(x) is the area of the cross-sections and dx is the thickness of each cross-section.
To determine the volume V generated by rotating the region bounded by y = x³, y = 0, and x = 4 around the y-axis,
For the region bounded by y = x³, y = 0, and x = 4, the cross-sections are perpendicular to the y-axis and they take the shape of washers.
The washer's area can be determined by taking the difference between the area of the larger circle (with radius 4) and the area of the smaller circle (with radius x³) which is:
A(x) = π(4² - x⁶) dx
To determine V, integrate A(x) over the limits of x = 0 to x = 4 which gives:
V = ∫[0,4] π(4² - x⁶) dx = π[4³x - 1/7x⁷][0,4]V = π[(64 × 4) - (1/7 × 4⁷)] = π[256 - (16384/7)] = 780.189 cubic units
Therefore, the integral set up to determine the volume V generated by rotating the region bounded by y = x³, y = 0, and x = 4 around the y-axis is:
V = ∫[0,4] π(4² - x⁶) dx where A(x) is the area of the cross-sections and dx is the thickness of each cross-section.
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Is [1 -2 1] an eigenvector of [3 3 5 6 3 6 7 7 5]? If so, find the corresponding eigenvalue.
No, [1 -2 1] is not an eigenvector of [3 3 5; 6 3 6; 7 7 5].
To determine if [1 -2 1] is an eigenvector of [3 3 5; 6 3 6; 7 7 5], we need to check if the given matrix multiplied by the vector is equal to a scalar multiple of the vector.
Let's perform the calculation:
[3 3 5; 6 3 6; 7 7 5] * [1; -2; 1] = [3 + (-6) + 5; 6 + (-6) + 6; 7 + (-14) + 5] = [2; 6; -2].
Since the result is not equal to a scalar multiple of [1 -2 1], we can conclude that [1 -2 1] is not an eigenvector of [3 3 5; 6 3 6; 7 7 5].
There is no corresponding eigenvalue for [1 -2 1] in this case.
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Find the radius of the circle given the area of the sector is 18.8 and the angle measure is 135 degrees .
Answer:
4
Step-by-step explanation: i guessed and got it right
sorry if youre looking for an actual education!!
. Pedro went to the store and spent $36.85. He paid with a $50 bill. How much money will he get back as
change? Show All Your Work for full credit
Answer:$13.15/thirteen USD and fifteen cents
Step-by-step explanation: 50.00-36.85= 13.15
HURRY I NEED HELP PLEASE IM STUCK! :(
Answer:
0.6 then calculate which expression is equal to that
Step-by-step explanation:
arccos = cos^-1
Put that in calculator
A. Zara is learning about surface area and volume in math class. She begins to notice that she can apply this geometry in everyday life. When her mom makes a jelly sandwich for her lunch, Zara notices it is similar to a rectangular prism and decides to measure its dimensions. She measures the length as 13 cm, the width as 10.8 cm, and the height as 3 cm, as shown below. What is the volume of Zara's sandwich? Show your work.
B. What is the surface area of Zara's sandwich? Show your work.
C. Zara cuts her sandwich in half down the middle, dividing it into two equal pieces. She then stacks one half of the sandwich on top of the other, as shown below.
\(5x {}^{2} + 2x - 3 - px - p\)
Answer:
5x² + 2x - 3 - px - p
= 5x² + 5x - 3x - 3 - p(x + 1)
= 5x(x + 1) - 3(x + 1) - p(x + 1)
= (x + 1)(5x - 3 - p)
Click through the graphs and select the one that could represent the relationship be
time, t, for the cell phone plan shown below.
time in hours 0 1 2 3
cost in dollars 10 13 16 19
Cost in dollars
20
18
16
14
4
2
2
3
Time in Hours
4
S
The linear function for the cost is given as follows:
C(t) = 10 + 3t.
How to define a linear function?The slope-intercept equation for a linear function is presented as follows:
y = mx + b
In which:
m is the slope.b is the intercept.We have that each hour, the cost increases by $3, hence the slope m is given as follows:
m = 3.
For a time of 0 hours, the cost is of $10, hence the intercept b is given as follows:
b = 10.
Thus the function is given as follows:
C(t) = 10 + 3t.
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