Answer:
1. 0.004
Step-by-step explanation:
0.04(1/10) = 0.004.
help....................
The unit of the rate of change is (b) dollars per month
How to determine the unit of the rate of changeFrom the question, we have the following parameters that can be used in our computation:
The table of values
Where we have
y = total amount in dollars
x = number of months
The rate of change is calculated as
Rate = y/x
substitute the known values in the above equation, so, we have the following representation
Rate = total amount in dollars/number of months
So, we have
Unit = dollars per month
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Consider a student’s work to solve the equation x+1−−−−−√3=3. Given x+1−−−−−√3=3 Step 1 (x+1−−−−−√3)3=(3)3 Step 2 x+1=9 Step 3 x=8 Which statement is true? Responses The student makes a mistake between the Given and Step 1. The student makes a mistake between the Given and Step 1 . The student makes a mistake between Step 1 and Step 2. The student makes a mistake between Step 1 and Step 2 . The student makes a mistake between Step 2 and Step 3. The student makes a mistake between Step 2 and Step 3 . The student makes no mistakes when solving the equation.
Answer:
Step-by-step explanation:
The student makes a mistake between the Given and Step 1.
The true statement is
Step 2. Between Steps 1 and 2, the student makes a mistake.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
x+1 /√3=3
Step 1: (x+1/√3)3=(3)3
Step 2: x+1=9
Step 3: x=8
From the above steps the student made the mistake in step 1.
This is because
(x+1/√3)3
= (x+1)√3, the term of √3 cannot be vanished easily.
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1. Consider the graph of the function y = sin x + cos x. Describe its overall shape.
Is it periodic?
How do you know?
2. Using a graphing calculator or other graphing device, estimate the x- and y-values of the maximum point for the graph (the first such point where x > 0). It may be helpful to express the x-value as a multiple of π.
3. Now consider other graphs of the form y = A sin x + B cos x for various values of A and B.
Sketch the graph when A = 2 and B = 1, and, find the x - and y-values for the maximum point. (Remember to express the x-value as a multiple of π, if possible.)
Has it moved?
4. Repeat and sketch the graph for A = 1, B = 2.
Is there any relationship to what you found in part (2)?
5. Explain what you have discovered from completing this activity using details and examples.
It is revealed through completing the task that the graph of y = sin x + cos x is periodic, having a maximum point at x 0.94 and y 2.24. We've also noted that changing the values of A and B causes the graph to move to the left, with the highest point at x 0.44 and y 2.84. This demonstrates that the ratio of A and B determines the greatest point of the graph.
What does this activity shows?This activity has demonstrated the effect of changing the coefficients of sine and cosine functions when combined. For example, when A and B are both 1, the graph of y = sin x + cos x creates a wave-like shape with a maximum point at (π/2, 2). When A is increased to 2 and B is kept at 1, the maximum point moves to the right and increases in y-value to (2π/3, 3). When B is increased to 2 and A is kept at 1, the maximum point moves to the left and increases in y-value to (π/3, 3). This shows that when the coefficient of the sine term is increased, the maximum point moves to the right, and when the coefficient of the cosine term is increased, the maximum point moves to the left. This also shows that the maximum point of the graph y = A sin x + B cos x increases in y-value as A and B increase.
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Triangle EFG is similar to triangle HIJ. Find JH. Round your answer to
the nearest tenth if necessary. Figures are not drawn to scale.
The length of the side JH in the triangle ΔHIJ is 97.9.
We are given two triangles. The vertices of the first triangle are E, F, and G. The vertices of the second triangle are H, I, and J. The triangles ΔEFG and ΔHIJ are similar to each other. The lengths of the sides FG, GE, and IJ are 12, 25, and 47, respectively. We need to find the length of the side, JH. The figure of the triangles is attached below.
Let the length of the side JH in the triangle ΔHIJ be represented by the variable "x". The side IJ is proportional to the side FG. Let the constant of proportionality be "k".
IJ ∝ FG
IJ = k*FG
k = IJ/FG
k = 47/12
The side JH is proportional to the side GE.
JH = k*GE
x = (47/12)*25
x = 97.9
Hence, the length of the side JH is 97.9 units.
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Derivative/Derivada
1) In(2x²-x)
The derivative is f'(x) = (4x - 1) / (2x² - x).
To find the derivative of the function f(x) = ln(2x² - x), we can use the chain rule.
Begin by identifying the function to be differentiated, which is f(x) = ln(2x² - x).
Apply the chain rule, which states that if we have a composition of functions, f(g(x)), the derivative is given by (f'(g(x))) g'(x).
Let's consider the inner function g(x) = 2x² - x.
To differentiate g(x), we need to apply the power rule and the constant rule. The derivative of 2x² is 4x, and the derivative of -x is -1.
Now, we differentiate the outer function f'(g(x)). The derivative of ln(x) is 1/x.
Finally, we multiply the derivatives obtained in steps 3 and 4. Thus, the derivative of f(x) = ln(2x² - x) is:
f'(x) = (1 / (2x² - x)) * (4x - 1)
Simplifying further, we have:
f'(x) = (4x - 1) / (2x² - x)
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I need help finding what the indicated IQ score is. This is my elementary statistics homework question
The IQ score given the mean and the standard deviation, can be found to be 105. 25.
How to find the IQ score ?To find the indicated IQ score corresponding to a right tail area of 0.3694, we can use a standard normal distribution table or calculator. Using a calculator, we can find that the z-score corresponding to a right tail area of 0.3694 is approximately 0.35.
Once we have the z-score, we can use the formula z = (x - μ) / σ to solve for the IQ score :
0.35 = (x - 100) / 15
Solving for x, we get:
x = 0.35 x 15 + 100
= 105.25
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Find the equation of the line using the given information.
The slope is
8
3
and it passes through the point
(x, y) = (1, 4).
The line equation is y = 8/3(x - 1) + 4
How to determine the line equation?The given parameters are:
Slope, m = 8/3
Point (x, y) = (1, 4)
The line equation is calculated as:
y = m(x - x1) + y1
So, we have:
y = 8/3(x - 1) + 4
Hence, the line equation is y = 8/3(x - 1) + 4
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There are 176 slices of bread in 8 loaves
If there are the same number of slices in each loaf how many slices of bread are in 5 loaves
Answer:
110
Step-by-step explanation:
Divide 176 by 8 to get 22 and then multiply 22 by 5 to get 110
Answer:
110
Step-by-step explanation:
176/8 is 22 so there are 22 slices per loaf.
To find the amount of slices in 5 loaves you multiply 22 and 5 to get 110.
Hope this helped :)
Please answer please
Answer:
96
Step-by-step explanation:
1 sticker pack has 28 stickers
3(28) = 84
84+12
96
Answer:
96
Step-by-step explanation:
28 × 3 = 84 + 12 = 96 I think, I'm not sure
PLEASEEEEEE!!!!!!!!! 7TH GRADE!!!! FIND SURFACE AREA!!!!!!!ASAP!!PLEASE T^T!!!!
Answer:
It is 390.5 (volume, not surface area)
Step-by-step explanation:
what is an equation of the line that passes through the points (4,-6) and has a slope of -3
1) y = -3x + 6
2)y = -3x - 6
3)y = -3x + 10
4) y = -3x + 14
Answer:
1) y = -3x + 6
Step-by-step explanation:
1) First, write the equation of the line in point-slope form with the given information. Use the point-slope formula \(y-y_1 = m (x-x_1)\) and substitute values for \(m\), \(x_1\), and \(y_1\).
Since \(m\) represents the slope, substitute -3 in its place. Since \(x_1\) and \(y_1\) represent the x and y values of the point the line intersects, substitute the x and y values of (4,-6) into the formula as well. This gives the following equation:
\(y+6 = -3(x-4)\)
2) Now, isolate the y in the equation to put it in slope-intercept form and find the answer.
\(y + 6 = -3(x-4)\\y + 6 = -3x+12\\y = -3x+6\)
So, the first option is correct.
Can someone please help my teacher and I solve part 1? Explain by steps and give the answer
Answer:
(a) A = -36
(b) B = -4
(c) 32
Step-by-step explanation:
(a) Isolate the A variable to solve for A. Here you divide.
2/3A = -24
A = -24 / (2/3)
A = -36
(b) Here, you multiply then divide by -1 to get rid of the negative on the variable
20 = -B / 0.2
20 x 0.2 = -B
4 = -B
4/-1 = -B / -1
-4 = B
(c) The difference between these two numbers is found by subtracting them. Since the answer is negative, put it in absolute value to get a positive answer since distance cannot be negative.
-36-(-4)
= -32
absolute value = 32
What is you answer and how many solutions for the following 3r- 9=3(r + 3)
Answer:
0
Step-by-step explanation:
3r-9=3(r+3)
3r-9=3r+9
collect like terms
3r-3r=9-9
r=0
Answer:
\(\large\boxed{\textsf{No Solutions.}}\)
Step-by-step explanation:
\(\textsf{We are asked to identify how many solutions are possible for r.}\)
\(\textsf{First, we should simplify the given equation.}\)
\(\textsf{For one part of the equation, we have to use the \underline{Distributive Property}.}\)
\(\Large\underline{\textsf{What is the Distributive Property?}}\)
\(\textsf{The \underline{Distributive Property} is a property used to distribute the \underline{multiplier} into}\)
\(\textsf{values \underline{inside} the parentheses.}\)
\(\textsf{Let's begin simplifying the equation.}\)
\(\large\underline{\textsf{Simplify.}}\)
\(\mathtt{3r-9=3(r+3)}\)
\(\large\underline{\textsf{Distribute:}}\)
\(\mathtt{3r-9=(3 \times r)+(3 \times 3)}\)
\(\mathtt{3r-9=3r+9}\)
\(\large\boxed{\textsf{No Solutions.}}\)
\(\large\underline{\textsf{Why?:}}\)
\(\textsf{Any value that is substituted into r will \underline{never} make the equation true.}\)
3 2/3 x 1/5= please help
Answer: 11/15
Step-by-step explanation:
Which of the following shows the correct solution steps and solution to 2×+ 7 = -11?
Answer:
x = - 9
Step-by-step explanation:
2x + 7 = - 11 ( subtract 7 from both sides )
2x = - 18 ( divide both sides by 2 )
x = - 9
The answer is:
x = -9
Work/explanation:
The point of equations is to find the variable's value by isolating it step-by-step.
For this equation, the variable is x.
To isolate it, I will perform a few operations.
First, I will subtract 7 from each side:
\(\sf{2x+7=-11}\)
\(\sf{2x=-11-7}\)
\(\sf{2x=-18}\)
Divide each side by 2
\(\sf{x=-9}\)
Hence, x = -9.
\(\rule{350}{4}\)
Y (4)
+4y ′′
+4y=0 A general solution with x as the independent variable is y(x)=
Answer:
Step-by-step explanation:
We can use the method of undetermined coefficients to solve this differential equation. First, we will need to find the solution to the homogeneous equation and the particular solution to the non-homogeneous equation.
For the homogeneous equation, we will use the form y"+ky=0, where k is a constant. We can find the solutions to this equation by letting y=e^mx,
y"=m^2e^mx -> (m^2)e^mx+k*e^mx=0, therefore (m^2+k)e^mx=0
(m^2+k) should equal 0 for the equation to have a non-trivial solution. Therefore, m=±i√(k), and the general solution to the homogenous equation is y=A*e^i√(k)x+Be^-i√(k)*x.
Now, we need to find the particular solution to the non-homogeneous equation. We can use the method of undetermined coefficients to find the particular solution. We will let yp=a0+a1x+a2x^2+.... As the derivative of a sum of functions is the sum of the derivatives, we get
yp″=a1+2a2x....yp‴=2a2+3a3x+....
Substituting the general solution into the non-homogeneous equation, we get
a0+a1x+a2x^2+...+2a2x+3a3x^2+...=Y(4)
So, the coefficient of each term in the expansion of the left hand side should equal the coefficient of each term in the expansion of the right hand side. Since there is only one term on the right hand side, we get the recurrence relation:
a(n+1)=Y(n-2)/n^2
From this relation, we can find all the coefficients in the expansion for the particular solution. Using this particular solution, we can find the total solution to the differential equation as the sum of the homogeneous solution and the particular solution.
Ashley received a $24 discount on a radio she bought for $98.00. What is the percent of discount she saved?
Answer:
24.49
Step-by-step explanation:
Answer:
24.489%, but most of the time they only go to 2 decimal places so 24.49%
Step-by-step explanation:
The graph compares the weights in pounds of 100 dogs and cats that are brought in
to a veterinarian's office. Using the medians, how much more does a typical dog weigh than a typical cat?
Answer:20
Step-by-step explanation:this is wrong
Answer:
40
Step-by-step explanation:
subtract median of dogs and median of cats
Solve the equation p + 19 = 51
Answer:
p=32
Step-by-step explanation:
Answer:
Step-by-step explanation:
p+19=51
p=51-19
p=32
Quadrilateral A'B'C'D' is the image of
quadrilateral ABCD under a dilation with a scale
factor of 3. What is the length of segment BC?
By using the concept of dilation factor, length of BC obtained is 3 units
What is dilation factor?
Dilation is a transformation which changes the size of a figure by a certain factor.
That factor is called the scale factor
In the figure, A'B'C'D' is the image of ABCD under dilation with a scale factor of 3
A'B'C'D' is the dilated figure
Length of B'C' = 9 units
Length of BC = \(9 \div 3\) = 3 units
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Complete Question
The figure has been attached here
A student is solving the problem
x^2 + 10x + _ = 16 + _
by method of completing the square. What number should the student add to both sides?
A. 4
B. 16
C. 25
D. 5
We should add 25 both side by method of completing the square.
We have to given that;
A student is solving the problem
x² + 10x + _ = 16 + _
Now, We can completing the square as;
⇒ x² + 10x + 5² = 16 + 5²
⇒ x² + 10x + 25 = 16 + 25
⇒ (x + 5)² = 16 + 25
Hence, We should add 25 both side by method of completing the square.
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helppppPPPppppPPppppppPppppPPpppPPPPpppPPPpppPppppPPPpPPPpppp please help do not look this up thank you
Answer:
Part A:
The probability of hitting the black circle is the ratio between the area of the black circle and the white square (including the black circle)
Area of circle:
Ac = pi x r^2 = pi x (2/2)^2 = pi (diameter = 2)
Area of square:
As = side^2 = 11^2 = 121 (side = 11)
=> P = pi/121 = ~0.025 (P = 0.025 < 0.5 => P is closer to 0 than 1)
Part B:
The probability of hitting the white portion could be calculated in a similar way as shown in part A. However, the event of hitting the white portion is the complement event of the event of hitting the black circle.
Because P(event) + P(complement of event) = 1
=> P = 1 - 0.025 = 0. 975 (P = 0.975 > 0.5 => P is closer to 1 than 0)
The cost to buy p pounds of potatoes at $0.32 per pound and n
pounds of onions at $0.48 per pound can be determined by using
the expression 0.32p + 0.48n. How much will it cost to buy 4.5
pounds of potatoes and 2.5 pounds of onions?
Which of the following represents the series? –13 + (–7) + (–1) + 5 + 11
Answer:
Adding +6 in turn
Step-by-step explanation:
-13+6=(-7)
(-7)+6=(-1)
(-1)+6=5
5+6=11
11+6=17
17+6=23
23+6=29
29+6=35
........... And so on
if it helped uh please mark me a brainliest :))Estimate -12 4/9 x 5 7/8
Answer:
\(-73\frac{1}{9}\)
Step-by-step explanation:
z varies directly as √√x and inversely as y. If: = 179 when x=25 and y= 7, find zifx = 64 and y = 4. (Round off your answer to the nearest hundredth.)
z=
We know that z varies directly as √√x and inversely as y, which can be written as:
z = k(√√x)/y
where k is the constant of proportionality.
To find the value of k, we can use the values given when x = 25 and y = 7:
179 = k(√√25)/7
179 = k(5/7)
k = (179*7)/5
k = 250.6
Now we can use this value of k to find z when x = 64 and y = 4:
z = 250.6(√√64)/4
z = 250.6(2)/4
z = 125.3
Therefore, z ≈ 125.3 when x = 64 and y = 4.
Choose the best multiple choice option below! Thanks in advance!
Answer:
Q5. D, Q6. D, Q9. B.--------------------
Question 5The range of the given function has one restriction, its denominator can't be zero, hence:
3x + 4 ≠ 0 ⇒ 3x ≠ - 4 ⇒ x ≠ - 4/3Therefore the function can get any value but zero:
y ≠ 0The matching answer choice is D.
Question 6Linear function is f(x) = mx + b.
Reciprocal of a function f(x) is 1/f(x).
So the reciprocal of linear function has a form of f(x) = 1 / (mx + b).
The only answer choice in same form is D.
Question 9Substitute x = - 5/3 into function to get:
\(f(x)=\cfrac{1}{3*(-5/3)+5} =\cfrac{1}{-5+5} =\cfrac{1}{0}\)This is undefined value, therefore it represents the vertical asymptote.
The function gets close to - ∞ when x → - 5/3 from left and gets close to +∞ when x → - 5/3 from right (see attached graph).
Therefore the correct choice is B.
If you were to deposit $1,000 into an account that paid 10 percent interest compounded semiannually, how much money would you have in the account one year from now?
James fenced in his backyard. The perimeter of his fence is 20 feet, and the width of his yard is 2 feet wide. Use the perimeter formula to find the length of his rectangular yard in inches: P = 2L + 2W.
8 in.
18 in.
72 in.
96 in.
The length of the rectangle is 96 inches.
Given,
James fenced in his backyard.
The perimeter of his fence is 20 feet, and the width of his yard is 2 feet wide.
Use the perimeter formula to find the length of his rectangular yard in inches:
P = 2L + 2W.
What is a rectangle?The area of a rectangle is given by:
= Length x width
The perimeter is given by:
= 2 ( Length + width )
We have,
Perimeter = 20 feet
Width = 2 feet
Perimeter = 20 feet
2 ( length + width ) = 20
length + width = 20 / 2
length + 2 = 10
length = 10 - 2 = 8 feet
We know that,
1 feet = 12 inches
8 feet = 12 x 8 inches = 96 inches
Thus the length of the rectangle is 96 inches.
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Match to the correct one
Answer:
1. b_ 2. a_ 3. c_ 4. d
Step-by-step explanation:
1 is b mainly because it is marked that way. Your picture doesn't show all of d so not really sure about it, but I used the process of elimination. Picture c is side angle side b/c of the vertical angles.