Step-by-step explanation:
Remember that
[tex](a + b) {}^{2} = {a}^{2} + 2ab + {b}^{2} [/tex]
So
[tex](2x) {}^{2} = 4 {x}^{2} [/tex]
So the first blank is 4
[tex]2ab = 2(2x)(3) = 12x[/tex]
So the second blank is 12
And finally
[tex]3 {}^{2} = 9[/tex]
So the final blank is 9.
A weight is attached to a spring and reaches its equilibrium position (x=0). It is then set in motion resulting in a displacement of x=12 cos t, where x is measured in centimeters and t is measured in seconds. See the figure shown to the right. Answer parts (a) and (b).
a. The spring's displacement when t = 0 is 12 cm.
The spring's displacement when t = π/3 is 6 cm.
The spring's displacement when t= 3π/4 is -6√2 cm.
b. The spring's velocity when t = 0 is 0 cm/sec.
The spring's velocity when t = π/3 is -6√3 cm/sec
The spring's velocity when t= 3π/4 is -6√2 cm/sec.
How to determine the spring's displacement?a. When t = 0, the spring's displacement can be calculated by using the given displacement equation:
x = 12cost
x(0) = 12cos(0)
x(0) = 12 cm.
When t = π/3, the spring's displacement can be calculated by using the given displacement equation:
x = 12cost
x(π/3) = 12cos(π/3)
x(π/3) = 12 × 1/2 = 6 cm.
When t = 3π/4, the spring's displacement can be calculated by using the given displacement equation:
x = 12cost
x(3π/4) = 12cos(3π/4)
x(3π/4) = 12 × -√2/2 = -6√2 cm.
Part b.
In order to determine the spring's velocity, we would have to take the first derivative of the displacement equation with respect to time;
v(t) = dx/dt = -12sint
When t = 0, the spring's velocity can be calculated as follows:
v(0) = -12sin(0)
v(0) = 0 cm/sec.
When t = π/3, the spring's velocity can be calculated as follows:
v(π/3) = -12sin(π/3)
v(π/3) = -6√3 cm/sec.
When t = 3π/4, the spring's velocity can be calculated as follows:
v(3π/4) = -12sin(3π/4)
v(3π/4) = -6√2 cm/sec.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
HELP FIND TRIANGLE GRAPH TRANSFORMATION
The triangle after the reflection over the line y = x has image points: (x'k), (5,-2), and (-6,-1). The corresponding preimage points are: (3,4), (4,3), and (-2,5).
The given information describes a triangle undergoing a transformation with a reflection over the line y = x. Let's analyze the preimage and image points to determine the transformation.
Preimage points: (3,4), (4,3), and (-2,5)
Image points: (x'k), (5,-2), and (-6,-1)
Since we know the reflection is over the line y = x, we can determine the image points by swapping the x and y coordinates of the preimage points. Therefore, the reflection can be represented by the transformation: (x, y) -> (y, x).
Applying this transformation to the preimage points, we get the image points as follows:
(3,4) -> (4,3)
(4,3) -> (3,4)
(-2,5) -> (5,-2)
Now we can check if the image points match the given image points:
(4,3) matches (x'k)
(3,4) matches (5,-2)
(5,-2) matches (-6,-1)
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What is 8x6 explain
8 x 6 is 48.
8 x 6 can also be written as eight 6s or six 8s.
So 8 + 8 + 8 + 8 + 8 + 8 or 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6.
Part D
Assuming that any increase occurs in whole dollar amounts, what is the maximum possible increase that maintains
the desired minimum revenue? Explain why this is true.
The desired minimum revenue is $3. See the reason below.
What is the reason why the above is true?Charge= b, Customer= c, Revenue= r
r= bc, currently, r= 16*10= $160
We know that: b+1 ⇒ c-2 and the target is r ≥ 130
So, this will all be reflected as -
b=10+x ⇒ c= 16-2x
(10+x)(16-2x) ≥ 130
160 -20x +16x - 2x² ≥ 130
-2x² - 4x + 30 ≥ 0
x² + 2x -15 ≤ 0
(x+1)² ≤ 4²
x+1 ≤ 4 (negative value not considered)
x ≤ 3
As we see the max increase amount is $3, when the revenue will be -
(10+3)*(16-3*2)= 13*10= $130
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Full Question:
Although part of your question is missing, you might be referring to this full question:
Noah manages a buffet at a local restaurant. He charges $10 for the buffet. On average, 16 customers choose the buffet as their meal every hour. After surveying several customers, Noah has determined that for every $1 increase in the cost of the buffet, the average number of customers who select the buffet will decrease by 2 per hour. The restaurant owner wants the buffet to maintain a minimum revenue of $130 per hour. Noah wants to model this situation with an inequality and use the model to help him make the best pricing decisions. Assuming that any increase occurs in whole dollar amounts, what is the maximum possible increase that maintains the desired minimum revenue? Explain why this is true.
[tex] \frac{x}{n} + 2 = w[/tex]
make x the subject
The variable x as the subject of the equation is x = n(w - 2)
How to make x the subject of the equationFrom the question, we have the following parameters that can be used in our computation:
x/n + 2 = w
Subtract 2 frm both sides of the equation
So, we have
x/n = w - 2
Next, we have
x = n(w - 2)
Hence, the solution is x = n(w - 2)
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graph the line with slope of 4 and y-intercept 1
The graph of the line y = 4x + 1 is on the graph at the end.
How to graph the line?A linear equation in the slope-intercept form is written as:
y = ax + b
Where a is the slope and b is the intercept of the y-axis.
Here we know that:
slope = 4 ---> a = 4
y-intercept = 1 ---> b = 1
Then our line is:
y = 4x + 1
To graph this we just need two points on the linear equation, that then we can graph and connect with a line.
when x = 0
y = 4*0 + 1 = 1
So we have (0, 1)
when x = 1
y = 4*1 + 1 = 5
So we have (1,5)
With these two points we will get the graph of the line that you can see below.
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The graph below shows the percentages of ingredients in a salad mix.
A pie chart titled Percentages in salad mix. 40 percent is iceberg, 27 percent is romaine, 15 percent is spinach, 12 percent is arugula, 6 percent is carrots.
Dominic buys a 64-ounce container of salad mix. About how many ounces of romaine lettuce does the container have?
6 ounces
12 ounces
18 ounces
27 ounces
The correct Option is C. Dominic buys about 18 ounces of romaine lettuce in the 64-ounce container of salad mix.
From the pie chart, we can infer that the percentage of romaine lettuce in the salad mix is 27%.
We can find the number of ounces of romaine lettuce in a 64-ounce container of salad mix by multiplying 64 by 27/100.
This is because we want to find what fraction of the whole salad mix is romaine lettuce, and then multiply it by the total number of ounces in the container.
Using proportions, we can find that:Let x be the number of ounces of romaine lettuce in a 64-ounce container of salad mix.
27/100 = x/64
Solving for x, we get:x = (27/100) * 64 = 18.28
Therefore, there are about 18.28 ounces of romaine lettuce in a 64-ounce container of salad mix.
However, since we are asked to give an approximate answer, we can round this to the nearest whole number, which is 18.
So, Dominic buys about 18 ounces of romaine lettuce in the 64-ounce container of salad mix.
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please awnser ASAP i will brainlist
The second coordinate of the given first coordinate is determined as;
f(0) = 1
(1) = 6.06.
What is the second coordinate of the given coordinate?
The second coordinate of the given first coordinate is calculated by applying the following method as follows;
The given function;
F(x) = [tex]4^{1.3x}[/tex]
The value of f(0) is calculated as;
f (0) = [tex]4^{1.3 \times 0}[/tex] = 4⁰ = 1
The value of f(1) is calculated as;.
f (1) = [tex]4^{1.3 \times 1} = 4^{1.3}[/tex] = 6.06
Thus, the second coordinate of the given first coordinate is determined by applying the appropriate substittue of the function as shown above.
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Help me pleaseeee. It my math hw you don’t have to do all of them at least do 4 please
Answer:
#5 - [tex]x=-2[/tex]
#6 - [tex]x=-4[/tex]
#7 - [tex]x=2[/tex]
#8 - [tex]x=10[/tex]
Step-by-step explanation:
Solve the following multi-step equations.
#5 - [tex]-10-7x=-3x-2[/tex]
#6 - [tex]-13-4x=x+7[/tex]
#7 - [tex]x-2=10-5x[/tex]
#8 - [tex]3x-1=4x-11[/tex]
[tex]\hrulefill[/tex]
I will use the SCAM method to solve these multi-step equations.
[tex]\mathbb{S}\text{implify each side of the equation} \\\\\\\mathbb{C}\text{ombine like terms, collect variables on one side }\\\\\\\mathbb{A}\text{dd and/or subtract}\\\\\\\mathbb{M}\text{ultiply and/or divide}[/tex]
What is our goal when solving equations?
Our goal is to isolate the variable.
Remember when solving equations, whatever you do to one side of the equation you must do to the other. [tex]\hrulefill[/tex]
Now solving #5,
[tex]-10-7x=-3x-2[/tex]
Observing the equation, we notice on either side of the equation we cannot simplify using the distributive property or order of operations ("PEMDAS"). Well will skip to the "C" in SCAM.
Add "7x" to each side of the equation.
[tex]\Longrightarrow -10-7x+7x=-3x-2+7x\\\\\\\Longrightarrow -10=4x-2[/tex]
The variable "x" now appears on one side of the equation. Now we are on the "A" in SCAM.
Add the value of "2" to each side of the equation.
[tex]\Longrightarrow -10+2=4x-2+2\\\\\\\Longrightarrow -8=4x[/tex]
Now on the "M" in SCAM.
Divide both sides of the equation by the value of "4."
[tex]\Longrightarrow \dfrac{-8}{4}=\dfrac{4}{4}x\\\\\\\Longrightarrow -2=x\\\\\\\therefore \boxed{x=-2}[/tex]
Thus, problem #5 is solved.
[tex]\hrulefill[/tex]
For the rest of the problems I will simply show the operations I am doing.
Now solving #6,
[tex]-13-4x=x+7\\\\\\\Longrightarrow -13-4x+4x=x+7+4x\\\\\\\Longrightarrow -13=5x+7\\\\\\\Longrightarrow -13-7=5x+7-7\\\\\\\Longrightarrow -20=5x\\\\\\\Longrightarrow \dfrac{-20}{5}= \dfrac{5}{5}x\\\\\\\Longrightarrow-4=x\\\\\\\therefore \boxed{x=-4}[/tex]
Thus, problem #6 is solved.
[tex]\hrulefill[/tex]
Now solving #7,
[tex]x-2=10-5x\\\\\\\Longrightarrow x-2+5x=10-5x+5x\\\\\\\Longrightarrow 6x-2=10\\\\\\\Longrightarrow 6x-2+2=10+2\\\\\\\Longrightarrow 6x=12\\\\\\\Longrightarrow \dfrac{6}{6}x=\dfrac{12}{6}\\\\\\\therefore \boxed{x=2}[/tex]
Thus, problem #7 is solved.
[tex]\hrulefill[/tex]
Now solving #8,
[tex]3x-1=4x-11\\\\\\\Longrightarrow 3x-1-3x=4x-11-3x\\\\\\\Longrightarrow -1=x-11\\\\\\\Longrightarrow -1+11=x-11+11\\\\\\\Longrightarrow 10=x\\\\\\\therefore \boxed{x=10}[/tex]
Alan solved the proportion StartFraction x over 200 EndFraction = StartFraction 8 over 25 EndFraction as shown.
StartFraction x over 200 EndFraction = StartFraction 8 over 25 EndFraction. (8) (x) = (25) (200). 8 x = 5,000. StartFraction 8 x over 8 EndFraction = StartFraction 5,000 over 8 EndFraction. X = 625.
What is Alan’s error?
He got the wrong product when he multiplied 25 by 200.
He got the wrong quotient when he divided 5,000 by 8.
He mixed up the positions of 8 and 25 in the equation (8) (x) = (25) (200).
He mixed up the positions of 8 and 200 in the equation (8) (x) = (25) (200).
The correct answer is that Alan mixed up the positions of 8 and 25 in the equation (8)(x) = (25)(200). This mistake led to incorrect calculations and the wrong answer.
Alan's error lies in mixing up the positions of 8 and 25 in the equation (8)(x) = (25)(200). In the original proportion, the correct equation is (x/200) = (8/25).
However, Alan mistakenly wrote it as (8)(x) = (25)(200), reversing the positions of 8 and 25. This error leads to incorrect calculations and ultimately an incorrect answer of x = 625.
Let's break down Alan's steps to understand his mistake:
StartFraction x over 200 EndFraction = StartFraction 8 over 25 EndFraction.
Alan correctly writes down the proportion.
(8)(x) = (25)(200).
Here is where Alan's error occurs. Instead of multiplying 8 by x and 25 by 200, he mistakenly swaps their positions. This mistake results in incorrect products.
8x = 5,000.
Alan multiplies incorrectly and obtains 5,000 as the product of 25 and 200.
StartFraction 8x over 8 EndFraction = StartFraction 5,000 over 8 EndFraction.
Alan divides both sides of the equation by 8, which is the correct step.
x = 625.
Alan divides 5,000 by 8 to find the value of x, which is his final incorrect answer. So, the correct option is he mixed up the positions of 8 and 25 in the equation (8) (x) = (25) (200).
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What would the points be?
The points in the graph of the system of inequalities are:
(-2, 0) --> not a solution.
(5, 0) --> not a solution.
(7, 0) --> not a solution.
(0, 7) --> solution.
What would the points be?Here we can see the graph of a system of inequalities, and there we have the points:
(-2, 0)
(5, 0)
(7, 0)
(0, 7)
You can see that all the points lie on the lines (these are solid lines, meaning that the points on the lines are solutions for the corresponding inequality)
Now, a point is a solution of a system of inequalities only if it solves both of them at the same time.
The only point that is a solution of both inequalities at the same time is point (0, 7).
So the points are:
(-2, 0) --> not a solution.
(5, 0) --> not a solution.
(7, 0) --> not a solution.
(0, 7) --> solution.
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please help find g(12)
Answer:
g(12) = 10
Step-by-step explanation:
To find g(12)
here t = 12 and lies in the range 6 ≤ t ≤ 12
so we use g(t) = [tex]\frac{5t}{6}[/tex]
⇒ g(12) = [tex]\frac{5*12}{6}[/tex]
= 5*2
= 10
g(12) = 10
Find y' by (a) applying the Product Rule and (b) multiplying the factors to produce a sum of simpler terms to differentiate.
y=(3-x^2)(x^3-5x+5)
a. Apply the Product Rule. Let u=(3-x^2) and v=(x^3-5x+5).
b. Multiply the factors of the original expression, u and v to produce a sum of simpler terms.
Find y'.
The factors of the original expression, u and v to produce a sum of simpler terms, the derivative of y with respect to x is: y' = -2x⁴ - x² - 10x + 15
Given the expression y = (3 - x²) (x³ - 5x + 5),
We need to find the derivative of y with respect to x.
We can find y' using two methods:
Method 1: Applying the Product RuleIf y = uv, then we know that y' = u'v + uv'Applying this formula to the given expression, We get:
y = (3 - x²) (x³ - 5x + 5)u = (3 - x²) and v = (x³ - 5x + 5)
Differentiating u and v, we get:u' = -2x and v' = 3x² - 5
Substituting these values into the formula for y', we get:
y' = u'v + uv' = (-2x) (x³ - 5x + 5) + (3 - x²) (3x² - 5)
Simplifying this expression, we get:
y' = -2x⁴ + 10x² - 10x - 3x² + 15 = -2x⁴ - x² - 10x + 15
Method 2: Multiplying the Factors to Produce a Sum of Simpler Terms to Differentiate
Expanding the given expression, we get:
y = 3x³ - 15x + 15 - x⁵ + 5x³ - 5x - 3x² + 15x² - 15x
Differentiating this expression, we get: y' = 9x² - 15 + 0 - 5x⁴ + 15x² - 5 - 6x + 30x - 15
Simplifying this expression, we get:
y' = -2x⁴ - x² - 10x + 15
Therefore, the derivative of y with respect to x is:y' = -2x⁴ - x² - 10x + 15
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Using Company A's calling plan, the cost of an overseas phone call is a $0.85 connection fee plus 28 cents per minute. If the total cost of the call is $14.85, how long is the phone call?
Answer:
50 minutes
Step-by-step explanation:
28 cents = $0.28
Let the call be for x minutes
Total cost = connection fee + x*cost per minute
14.85 = 0.85 + 0.28x
14.85 - 0.85 = 0.28x
0.28x = 14
x = 14/0.28
x = 50
Answer:
50 min
Step-by-step explanation:
Let the call be for x minutes
14.85 = 0.85 + 0.28x
0.28x = 14
x = 14/0.28 = 50
What is 8.7x0.45 if you multiply it
The solution to the multiplication of the decimals is; 39.15
How to multiply decimals?One of the ways to multiply decimals is as follows;
To multiply decimals, first multiply as if there is no decimal.
Second step is to count the number of digits after the decimal in each factor.
Last step is to put the same number of digits behind the decimal in the product.
Now, we want to multiply the decimals given as;
8.7 × 0.45
Converting them to fractions gives us;
(87/10) × (45/10)
= 3915/100
= 39.15
Thus, that is the solution to the multiplication of the decimals.
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Which expression is equivalent to (f g) (5)?
f (5) times g (5)
f (5) + g (5)
5 f (5)
5 g (5)
The expression that is equivalent to the composite function (f ° g) (5) is; Option A: f (5) times g (5)
How to solve composite functions?A composite function is defined as an operation where two functions say f and g, generate a new function say h in such a way that h(x) = g(f(x)). It means here that function g is said to be applied to the function of x. So, this basically,l tells us that a function is applied to the result of another function.
We want to find (f ° g) (5)
This simply means f(5) × g(5)
The composite function definition demands that must be the expression of the the question and as such option A is the only correct option.
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Answer:
f(5) x g(5)
Step-by-step explanation:
(fg)(5) = (f x g)(5) = f(5) x g(5)
What positive value of b makes this equation true
Leave your answer in radical form.
9 to the power of 2 b to the power of 2 = 12 to the power of 2
Answer:
[tex]\huge\boxed{\sf b = 4/3}[/tex]
Step-by-step explanation:
Given equation:[tex]9^2 \times b^2 = 12^2[/tex]
So,
81 × b² = 144
Divide both sides by 81b² = 144 / 81
b² = (12 × 12) / (9 × 9)
b² = 12² / 9²
Take square root on both sides√b² = √(12²/9²)
b = 12 / 9
b = 4 / 3[tex]\rule[225]{225}{2}[/tex]
This is the input-output table for the linear function y = 3x. Table_XY Which best describes how the y-values are increasing over each interval? Subtract 10 over each interval. Multiply by 2 over each interval. Add 3 over each interval..
Step-by-step explanation:
Can you provide an image please?
Answer:
C
Step-by-step explanation:
you can approximate e by substituting large values for n into what expression
This method of approximation is derived from the mathematical concept of limits and the definition of the number e as the limit of (1 + 1/n)^n as n approaches infinity. By increasing the value of n, we approach closer and closer to the actual value of e.
To approximate the mathematical constant "e," you can use the expression (1 + 1/n)^n, where n is a large value. As n approaches infinity, this expression converges to the value of e. The larger the value of n, the closer the approximation will be to the actual value of e.
For example, let's substitute a large value, say n = 10,000, into the expression:
Approximation of e ≈ (1 + 1/10,000)^10,000
Calculating this expression, we get an approximation of e as approximately 2.7181459. Although it's not an exact value, it is a close approximation of the mathematical constant.
To use this approximation, choose a large value for "n", such as 10,000 or 100,000, and evaluate the expression (1 + 1/n)^n using a calculator or computer program. The result will be a close approximation of the value of "e". The larger the value of "n", the more accurate the approximation will be.
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How many 9/4 hours are there in 3/4 hour?
1/3
3
1/4
4
Answer: 1/4
Step-by-step explanation:
are these functions. {(2, 3), (1, 3), (5, 3), (2, 6)}
Jose wakes up ealry if and only if he is going for a bike ride what is the contrapositive
The contrapositive of the sentence is this: Jose isn't going for a bike ride if and only if he doesn't wake up early.
What is a contrapositive?A contrapositive is a statement that challenges both the predicate and the subject of a given sentence. In the above sentence, the statement is that Jose wakes up early if and only if he is going for a bike ride.
The contrapositive now challenges the subject's action of waking up early and going for a bike ride. The hypothesis and conclusion are disputed.
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What is the simplified form of the expression (-3x^2 + x + 5) − (4x^2 − 2x)
The simplified form of the expression (-3x² + x + 5) - (4x² - 2x) is -7x² + 3x + 5.
To simplify the expression (-3x² + x + 5) - (4x² - 2x)
you will have to perform the subtraction of the two polynomials.
This can be done by first removing the brackets by applying the negative sign of the second polynomial.
After removing the brackets, you can combine like terms.
Hence;
(-3x² + x + 5) - (4x² - 2x)
= -3x²+ x + 5 - 4x²+ 2x (applying negative sign)
= -3x² - 4x² + x + 2x + 5 (combining like terms)
= -7x² + 3x + 5
Therefore, the simplified form of the given expression is -7x² + 3x + 5.
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Polygon ABCD with vertices at A(−4, 6), B(−2, 2), C(4, −2), and D(4, 4) is dilated using a scale factor of four fifths to create polygon A′B′C′D′. If the dilation is centered at the origin, determine the vertices of polygon A′B′C′D′.
A′(−3.2, 4.8), B′(−1.6, 1.6), C′(3.2, −1.6), D′(3.2, 3.2)
A′(−16, 24), B′(−8, 8), C′(16, −24), D′(16, 16)
A′(3.2, −4.8), B′(1.6, −1.6), C′(−3.2, 1.6), D′(−3.2, −3.2)
A′(4.5, −3), B′(1.5, −1.5), C′(−1.5, 3), D′(3, 3)
Answer:
A.
Step-by-step explanation:
New x-coordinate = (-4) * (4/5) = -16/5 = -3.2
New y-coordinate = 6 * (4/5) = 24/5 = 4.8
that's the only option with a -3.2 for A
Geometry
Answer fast
Answer:
Your correct
Step-by-step explanation:
The transversal,a, creates right angles for line b, c, and d. This they are parallel
The figure below is a net for a right rectangular prism.
7 cm
7 cm
10 cm
10 cm
13 cm
10 cm
10 cm
A net is a two-dimensional pattern that can be folded into a three-dimensional shape. The figure you provided is a net for a right rectangular prism with dimensions 10 cm x 7 cm x 13 cm. It consists of six rectangles, where the two rectangles on the ends have dimensions of 10 cm x 7 cm, and the four rectangles in the middle have dimensions of 13 cm x 7 cm.
To create the right rectangular prism from the net, you would need to cut along the solid lines and fold along the dashed lines. The two rectangles with dimensions 10 cm x 7 cm would become the top and bottom faces of the prism, while the four rectangles with dimensions 13 cm x 7 cm would become the four side faces of the prism. When folded and glued or taped together, the prism would have a height of 10 cm, a width of 7 cm, and a length of 13 cm.
Two number in ratio 4:1 sum is 60 find largest number
Answer:
48
Step-by-step explanation:
4 : 1
4 + 1 = 5
60/5 = 12
12 × 4 = 48
12 × 1 = 12
48 : 12 are numbers in a 4:1 ratio and add to 60.
Answer: 48
Answer:
larger # is 48
look at attachment
Step-by-step explanation:
4x+1x=60
a die is thrown once. what is the probability that the score is a factor of 6
Answer:
6 by 36 is the answer.....
what is the probability that a data value in a normal distribution is between a z-score of 1.65 and a z-score of 2.24? Round your answer to the nearest tenth of a percent.
The probability that a data value in a normal distribution is between a z-score of 1.65 and a z-score of 2.24 is approximately 6.9%.
To calculate the probability, we need to use the standard normal distribution table or a statistical calculator.
Look up the cumulative probability for the lower z-score (1.65):
From the standard normal distribution table or a statistical calculator, we find that the cumulative probability for a z-score of 1.65 is approximately 0.9505.
Look up the cumulative probability for the higher z-score (2.24):
Similarly, the cumulative probability for a z-score of 2.24 is approximately 0.9875.
Calculate the probability between the two z-scores:
To find the probability between the two z-scores, we subtract the cumulative probability of the lower z-score from the cumulative probability of the higher z-score.
Probability = Cumulative probability (Higher z-score) - Cumulative probability (Lower z-score)
Probability = 0.9875 - 0.9505
Probability = 0.037
Convert the probability to a percentage:
Multiply the probability by 100 to express it as a percentage.
Probability (in percentage) = 0.037 × 100
Probability (in percentage) = 3.7%
Rounded to the nearest tenth of a percent, the probability that a data value in a normal distribution is between a z-score of 1.65 and a z-score of 2.24 is approximately 6.9%.
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Cant figure this out,not even for the life of me.
Find f(1) for the
piece-wise function.
f(x) =
2x
NIT
if x < 1
+/ ifx>1
x+
f(1) = [?]
well, f(1) is indicating that x = 1, hmmm for the piecewise, on what section is that?
well, x < 1 is just whenever "x" is less than 1, but not 1.
x ⩾ 1 is whenever "x" is either 1 or greater than 1, so that's our guy, so we use that subfunction to get it.
[tex]f(x)= \begin{cases} 2x&x < 1\\\\ \cfrac{1}{2}x+\cfrac{5}{2}&x\geqslant 1\hspace{3em}\textit{f(1) is in this section} \end{cases} \\\\[-0.35em] ~\dotfill\\\\ f(1)=\cfrac{1}{2}(1)+\cfrac{5}{2}\implies f(1)=3[/tex]