Is 6.6 greater than -2.0? Yes, true. A positive number is always larger than a negative number.
Answer:
Yes, 6.6 is greater than -2.0
Step-by-step explanation:
If you ever have a positive and a negative number, the positive will be greater every time. ( 6.6 > -2.0 )
Suppose that ƒ is a function given as f(x) = 4x² + 5x + 3.
Simplify the expression f(x + h).
f(x + h)
Simplify the difference quotient,
ƒ(x + h) − ƒ(x)
h
=
Submit Question
The derivative of the function at x is the limit of the difference quotient as h approaches zero.
f(x+h)-f(x)
f'(x) =lim
h→0
h
ƒ(x + h) − f(x)
h
=
Answer:
f(x +h) = 4x² +4h² +8xh +5x +5h +3
(f(x+h) -f(x))/h = 4h +8x +5
f'(x) = 8x +5
Step-by-step explanation:
For f(x) = 4x² +5x +3, you want the simplified expression f(x+h), the difference quotient (f(x+h) -f(x))/h, and the value of that at h=0.
F(x+h)Put (x+h) where h is in the function, and simplify:
f(x+h) = 4(x+h)² +5(x+h) +3
= 4(x² +2xh +h²) +5x +5h +3
f(x +h) = 4x² +4h² +8xh +5x +5h +3
Difference quotientThe difference quotient is ...
(f(x+h) -f(x))/h = ((4x² +4h² +8xh +5x +5h +3) - (4x² +5x +3))/h
= (4h² +8xh +5h)/h
(f(x+h) -f(x))/h = 4h +8x +5
LimitWhen h=0, the value of this is ...
f'(x) = 4·0 +8x +5
f'(x) = 8x +5
__
Additional comment
Technically, the difference quotient is undefined at h=0, because h is in the denominator, and we cannot divide by 0. The limit as h→0 will be the value of the simplified rational expression that has h canceled from every term of the difference. This will always be the case for difference quotients for polynomial functions.
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Evaluate the integral by changing to spherical coordinates:
the final result of the double integral is `(4/3)*a. we have to Integrate the inner integral with respect to z.
what is inner integral ?
An inner integral is a mathematical term that refers to the integral function that is evaluated first in a double integral.
In the given question,
To solve this double integral, we will use the following steps:
Integrate the inner integral with respect to z.
Evaluate the result of the inner integral at upper and lower limits of z.
Substitute the result of the inner integral into the outer integral and integrate with respect to y.
Evaluate the result of the outer integral at the upper and lower limits of y.
Simplify the expression.
Now, let's apply these steps to solve the given double integral:
Integrate the inner integral with respect to z:
∫(x²*z + y²*z + z³) dz = x²/2*z² + y²/2*z² + z^4/4 + C
where C is the constant of integration.
Evaluate the result of the inner integral at the upper and lower limits of z:
(x²/2*(a²-x²-y²)¹⁵ + y²/2*(a²-x²-y²)¹⁵ + (a²-x²-y²)²/4)
- (x²/2*(-a²+x²+y²)¹⁵ + y²/2*(-a²+x²+y²)¹⁵ + (-a²+x²+y²)²/4)
Substitute the result of the inner integral into the outer integral and integrate with respect to y:
markdown
∫[(x²/2*(a²-x²-y²)¹⁵ + y²/2*(a²-x²-y²)¹⁵ + (a²-x²-y²)²/4)
- (x²/2*(-a²+x²+y²)¹⁵ + y²/2*(-a²+x²+y²)¹⁵ + (-a²+x²+y²)²/4)] dy
Evaluate the result of the outer integral at the upper and lower limits of y:
= ∫[(x²/2*(a²-x²-y²)¹⁵ + y²/2*(a²-x²-y²)¹⁵ + (a²-x²-y²)²/4)- (x²/2*(-a²+x²+y²)¹⁵ + y²/2*(-a²+x²+y²)¹⁵ + (-a²+x²+y²)²/4)] dy
from y = -sqrt(a²-x²) to y = sqrt(a²-x²)
= (2/3)*x²*(a²-x²)¹⁵ + (2/3)*(a²-x²)²⁵
- (2/3)*x²*(-a²+x²)¹⁵ + (2/3)*(-a²+x²)²⁵
Simplify the expression:
= (4/3)*a³ - (4/3)*a*x²
Therefore, the final result of the double integral is `(4/3)*a
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Find the value of x.
6
14
8
0
21
x = [ ? ]
3x-12
Answer: 7
Step-by-step explanation:
By the angle bisector theorem,
\(\frac{21}{14}=\frac{3x-12}{6}\\21(6)=14(3x-12)\\126=14(3x-12)\\9=3x-12\\21=3x\\x=\boxed{7}\)
Would really appreciate if someone helped me with this one please!
a) The value of x is 21
b) The value of the expression is 135.
c) The value of the expression is 135.
How to find the value of x?Here we know that the lines G and M are parallel, meaning that the two shown angles are alternarte exterior angles, and thus, have the same measure, then we can write:
5*(x + 6) = 9*(x - 6)
We can solve that linear equation for x:
5x + 30 = 9x - 54
30 + 54 = 9x - 5x
84 = 4x
84/4 = x
21 = x
Then the measures of the angles are:
a1 = 5*(21 + 6) = 135°
a2 = 9*(21 - 6) = 135°
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Mean, Median, Mode, Appropriate Measures, Standard
Deviation
Use this data set to answer all questions on this page.
513, 490, 496, 380, 490, 513, 503, 513, 500, 492
Question 1 Which of the following would be APPROPRIATE measure(s) of center. (1)Mean (2)Median (3) Mode. Question 2 Find the standard deviation. Round your answer to the tenths place(one decimal place)
Answer:
Question 1: The appropriate measures of center for this data set would be (1) Mean and (2) Median. There is no mode in this data set as there are no repeating values.
Question 2: To find the standard deviation, we first need to find the mean:
Mean = (513 + 490 + 496 + 380 + 490 + 513 + 503 + 513 + 500 + 492) / 10 = 494.0
Next, we find the difference between each data point and the mean:
(513 - 494.0), (490 - 494.0), (496 - 494.0), (380 - 494.0), (490 - 494.0), (513 - 494.0), (503 - 494.0), (513 - 494.0), (500 - 494.0), (492 - 494.0)
19, -4, 2, -114, -4, 19, 9, 19, 6, -2
Then we square each difference:
361, 16, 4, 12996, 16, 361, 81, 361, 36, 4
The sum of these squared differences is:
361 + 16 + 4 + 12996 + 16 + 361 + 81 + 361 + 36 + 4 = 14136
To find the variance, we divide the sum of squared differences by the number of data points minus one:
Variance = 14136 / 9 = 1570.7
Finally, we find the standard deviation by taking the square root of the variance:
Standard deviation = √1570.7 ≈ 39.6 (rounded to the tenths place)
Step-by-step explanation:
2
Let g(x) = x + 4x-7.
What is g(x) in graphing form?
(x + 2) - 7 = 4
O g(x) = (x + 2)²-7
Onone of the answer choices
x² + 4x-7=0
O g(x) = (x + 2)² - 11
The graphing form of the function g(x) is: C) none of the answer choices.
The function g(x) = \(x^2 + 4x - 7\)is already in the standard form of a quadratic equation. In graphing form, a quadratic equation can be represented as y =\(ax^2 + bx + c,\) where a, b, and c are constants.
Comparing the given function g(x) =\(x^2 + 4x - 7\)with the standard form, we can identify the coefficients:
a = 1 (coefficient of x^2)
b = 4 (coefficient of x)
c = -7 (constant term)
Therefore, the graphing form of the function g(x) is:
C) none of the answer choices
None of the given answer choices (A, B, D, or E) accurately represents the graphing form of the function g(x) =\(x^2 + 4x - 7\). The function is already in the correct form, and there is no equivalent transformation provided in the answer choices. The given options either represent different equations or incorrect transformations of the original function.
In graphing form, the equation y = \(x^2 + 4x - 7\) represents a parabolic curve. The coefficient a determines the concavity of the curve, where a positive value (in this case, 1) indicates an upward-opening parabola.
The coefficients b and c affect the position of the vertex and the intercepts of the curve. To graph the function, one can plot points or use techniques such as completing the square or the quadratic formula to find the vertex and intercepts. Option C
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1. It costs $3.45 to buy 3/4 lb of chopped walnuts. How much would it cost to purchase
7.5 lbs of walnuts? Explain or show your reasoning.
Answer:
$34.50
Step-by-step explanation:
First, how many 3/4 lbs are in 7.5 lbs?
7.5 lbs = 15/2 lbs.
(15/2) / (3/4) = 10
There are 10 "3/4" lbs in 7.5 lbs.
So, if it costs $3.45 to purchase 3/4 lbs of chopped walnuts, it would cost $3.45 times 10 dollars to purchase 7.5 lbs of chopped walnuts, or $34.50.
Let me know if this helps!
Write an equation, then determine the number described in the following statement: Eight less than 3 times a number is twice the sum of x and 4.
A. 8 – 3x = 2x + 4; x = 2.4
B. 8 – 3x = 2(x + 4); x= 0
C. 3x – 8 = 2x + 4; x= 12
D. 3x – 8 = 2(x + 4); x = 16
Answer:
It is either b or d but I think it is b
Step-by-step explanation:
Identify the coordinates of point E. Responses (–2, –3) (–2, –3) (3, –2) (3, –2) (–2, 3)
(-2,-3) it located at the Quadrant lll on a Cartesian plane.
What are coordinates?
Coordinates are a set of numbers or values that represent the position of a point or object in a coordinate system. A coordinate system typically consists of two or more axes, such as the x-axis and y-axis in a Cartesian coordinate system, that intersect at a point called the origin. Coordinates are often written as ordered pairs (x, y) or as triplets (x, y, z) in three-dimensional space.
According to the question:
A cartesian plane has four quadrant. Each quadrant is represents as I,II,III,IV with different signs.
For example: quadrant one, quadrant two, quadrant three, and quadrant four. X-axis is a horizontal axis. Y-axis is a vertical axis X-coordinate is a horizontal position. Y-coordinate is a vertical position. Origin is a point of intersection of the two axes.
So the point E located in 3rd quadrant which is (-,-) it implies (-2,-3)
point E has value of -2,-3 at the x and y axis respectively.
Therefore, correct answer is (-2,-3).
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Q) Identify the coordinates of point E by observing the figure below.
a. ( 3, -2 )
b. ( -3, -2 )
c. ( -2, -3 )
d. ( -2, 3 )
The diagram shows a triangle.
31° / 6x / x+16°
What is the value of x?
Step-by-step explanation:
31 + 6x + x + 16 = 180
7x + 47 = 180
7x = 180 - 47
x = 133/7
x = 19
Suppose that the readings on the thermometers are normally distributed with a mean of 0∘ and a standard deviation of 1.00∘C.
If 12% of the thermometers are rejected because they have readings that are too high, but all other thermometers are acceptable, find the reading that separates the rejected thermometers from the others.
The reading that separates the rejected thermometers from the others is given as follows:
1.175 ºC.
How to obtain probabilities using the normal distribution?The z-score of a measure X of a normally distributed variable that has mean represented by \(\mu\) and standard deviation represented by \(\sigma\) is obtained by the equation presented as follows:
\(Z = \frac{X - \mu}{\sigma}\)
The z-score represents how many standard deviations the measure X is above or below the mean of the distribution of the data-set, depending if the obtained z-score is positive(above the mean) or negative(below the mean).The z-score table is used to obtain the p-value of the z-score, and it represents the percentile of the measure X in the distribution.The mean and the standard deviation for this problem are given as follows:
\(\mu = 0, \sigma = 1\)
The 12% higher of temperatures are rejected, hence the 88th percentile is the value of interest, which is X when Z = 1.175.
Hence:
1.175 = X/1
X = 1.175 ºC.
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standard form. (x+8)(x−6)
Answer:
x^2-2x-48
Step-by-step explanation:
FOIL
Firsts = x*x = x^2
outside = x*-6 = -6x
inside = 8*x = 8x
lasts = 8*-6 = -48
add all together x^2-6x+8x-48 = x^2-2x-48
Answer:
x² + 2x - 48
Step-by-step explanation:
( x + 8 ) ( x - 6 )
= x ( x - 6 ) + 8 ( x - 6 )
= x*x - 6*x + 8*x + 8*( - 6 )
= x² - 6x + 8x - 48
= x² + 2x - 48
Solve for the value of n.
(9n)
(8n+8)
This question is based on the given solving an equation. Therefore, the value of n for (9n) (8n+8) is 0 and -1.
Given:
(9n) (8n+8)
We need to determined the value of n.
According to the question,
It is given that, expression (9n) (8n+8).
For finding the value of n, we would be equate the given expression is equal to zero.
⇒ (9n) (8n+8) = 0
Now, calculating the value of n. We get,
⇒ (9n) (8n)+(9n) (8)
Then, solving above expression further. We get,
⇒ \(\bold{72 n^2+ 72n = 0}\)
Now, taking common 72 n. We get,
⇒ 72n (n + 1) = 0
⇒ 72 n = 0 and (n+1) = 0
We get,
n = 0 , -1
Therefore, the value of n for (9n) (8n+8) is 0 and -1.
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The ratio of boys to girls at a movie is 4:7. If there are 21 girls, how many boys are at the movie?
Answer:
12 boys
Step-by-step explanation:
7 x 3 = 21
4 x 3 = 12
12 boys
A population of values has a normal distribution with �=189.7 and �=96.7. You intend to draw a random sample of size �=62.
Find the probability that a single randomly selected value is between 189.7 and 213.
P(189.7 < X < 213) =
Find the probability that a sample of size �=62 is randomly selected with a mean between 189.7 and 213.
P(189.7 < M < 213) =
Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
The probability that a sample of size n = 62 is randomly selected with a mean between 189.7 and 213 is approximately 0.9702.
To find the probability that a single randomly selected value is between 189.7 and 213, we can use the standard normal distribution.
Step 1: Calculate the z-scores for the given values using the formula:
z = (x - μ) / σ
For 189.7:
z1 = (189.7 - 189.7) / 96.7 = 0
For 213:
z2 = (213 - 189.7) / 96.7 ≈ 0.2417
Step 2: Utilize a standard typical conveyance table or number cruncher to find the probabilities comparing to the z-scores.
P(189.7 < X < 213) = P(0 < Z < 0.2417) ≈ 0.0939
Therefore, the probability that a single randomly selected value is between 189.7 and 213 is approximately 0.0939.
To find the probability that a sample of size n = 62 is randomly selected with a mean between 189.7 and 213, we use the central limit theorem. Under specific circumstances, the testing dispersion of the example mean methodologies a typical conveyance
Step 1: Calculate the standard error of the mean (σ_m) using the formula:
σ_m = σ / sqrt(n)
σ_m = 96.7 / sqrt(62) ≈ 12.2878
Step 2: Convert the given qualities to z-scores utilizing the equation:
z = (x - μ) / σ_m
For 189.7:
z1 = (189.7 - 189.7) / 12.2878 = 0
For 213:
z2 = (213 - 189.7) / 12.2878 ≈ 1.8967
Step 3: Utilize a standard typical conveyance table or mini-computer to find the probabilities relating to the z-scores.
P(189.7 < M < 213) = P(0 < Z < 1.8967) ≈ 0.9702
Therefore, the probability that a sample of size n = 62 is randomly selected with a mean between 189.7 and 213 is approximately 0.9702.
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200 kg of brass is melted down and cast into ornamental frogs, each weight 3/20kg. How many frogs are made?
Answer:
1,333 frogs
Step-by-step explanation:
okay so we know that mass remains conserved no matter where you are.
same here ^^
if the total mass of brass is 200 kg
the total mass of the new frogs formed from it when put together will be the same :)
and if there were n such frogs formed
we have,
total mass = n × mass of each frog
200 = n × 3/ 20
n = 4000/ 3
so it becomes something like 1,333.33
that is nearly 1,333 frogs can be made out of 200 kg of brass each weighing 3/ 20kg (the last ones a bit less to make upto 200kg)
3 differences between a linear equation and exponential equation? can someone help?
Linear equation is a equation in which the degree of variable is always one,
for example :
\(\begin{gathered} x+y=6 \\ \text{here the degre}e\text{ (exponent value ) of the variables x and y is 1} \end{gathered}\)In cas exponential equation , the variables or any numerical value have degree of variable or you can say that the degree of the equation having variable
for example
\(\begin{gathered} y=a^x \\ \text{here the degr}e\text{ (exponent value ) of 'a' is a variable i.e x} \\ \text{where 'a' can be variable or constant} \end{gathered}\)Help asap 6th grade math
Answer:
I believe the answer is D.
\(\huge\boxed{Answer\hookleftarrow}\)
D
\(\huge\boxed{Explanation\hookleftarrow}\)
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3 friends share
5/6 of a pizza
What fraction of a pizza does each person get?
Answer:
5/18
Step-by-step explanation:
We assume they share equally.
5/6 ÷ 3 = 5/6 × 1/3 = 5/18
As the assistant to the CFO of Johnstone Inc., you must estimate its cost of common equity. You have been provided with the following data: D0 = $0.85; P0 = $22.80; and g = 7.00% (constant). Based on the DCF approach, what is the cost of common equity?
On solving the provided question, we got to know that - the cost of common equity is 11.84
What does equity ?Equity in mathematics education is defined by the National Council of Teachers of Mathematics as high standards and rewarding opportunities for everyone, addressing disparities to assist all kids learn mathematics, and making sure that all classrooms have resources and support for students.
here, the above question we have -
D0 = $0.85;
P0 = $22.80;
g = 7.00%
= 700
Answer is - The cost of common equity is 11.84
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Slope 0; through (-5, -1)
Answer:
y = -1
Step-by-step explanation:
What is the slope of (-7,3) and (-7,-9)
Answer:
Step-by-step explanation:
77 for (-7,3)
Answer:
Since this is a straight line the slope is just x = -7.
GEOMETRY 100 POINTS
Find the length of BC
Answer:
x = 16
Step-by-step explanation:
Opposite sides are equal in a parallelogram
AD = BC
5x - 12 = 3x + 20
5x - 3x = 20 + 12
2x = 32
x = 32/2
x = 16
In A container, there are red, blue and green balls. 3/11 of ball s are red There are 35 more blue balls than red balls. The remaining 90 balls are green. How many more blue balls than green balls are there? of the balls are red.
what is a regression through the origin
A regression through the origin is a linear regression model where the intercept time period is assumed to be 0, meaning the regression line passes through the starting place.
This version is also referred to as zero-intercept regression or homogeneous regression.
It's far frequently used whilst there's a theoretical foundation to agree with that the relationship among the dependent and unbiased variable passes via the foundation or whilst the information propose that the intercept ought to be 0.
The slope coefficient represents the change within the structured variable for a one-unit increase inside the unbiased variable.
However, this kind of regression may not be appropriate in all cases, and a general linear regression version with an intercept term can be greater suitable.
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Give a rule of the piecewise-defined function.
The equation of the piecewise function is \(f(x) = \left[\begin{array}{ccc}3&x \le -1\\-1&x > 2\end{array}\right\)
The piecewise functionOn the graph, we have:
y = 3 for all x values not more than -1y = -1 for all values greater than 2Hence, the piecewise function is:
\(f(x) = \left[\begin{array}{ccc}3&x \le -1\\-1&x > 2\end{array}\right\)
The domain of the functionThis is the set of input values
In (a), we have:
x ≤ -1 and x > 2
Hence, the domain is (∞, 3] u (2, ∞)
The range of the functionThis is the set of output values
In (a), we have:
f(x) = 3 and f(x) -1
Hence, the range is [3] u (-1)
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If Madeline has one week to read 1293 pages of a book and if she wants to split her reading equally each day how many pages will she need to read each day in order to finish
Answer:
184 5/7 pages
Step-by-step explanation:
There are 7 days in a week. If Madeline wants to read equal portions of the book each day, each of those portions must be 1/7 of the book, or ...
1/7 × 1293 pages = 184 5/7 pages
Madeline will need to read 184 5/7 pages each day in order to finish.
find the smallest integer $k$ for which the conditions (1) $a 1, a 2, a 3, \dots$ is a nondecreasing sequence of positive integers (2) $a n
The smallest possible value of k is 0.
Let's call a_n = n + k.
We see that this sequence satisfies both conditions (1) and (2).
For condition (1),
Since a_n = n + k, the sequence is non-decreasing as long as \($k \ge 0$\).
For condition (2),
Since a_n = n + k,
We have \($n(n + 1)/2 \ge a_n = n + k$\), which rearranges to \($k \ge -n$\).
To make sure that k is an integer,
we take the ceiling of -n, i.e., \(k \ge \lceil -n \rceil\)
Therefore, the smallest such k is \(\max{0, \lceil -n \rceil} = \lceil -n \rceil\)
Since we want to find the smallest k for any given n,
we need to find the smallest n such that [-n] is positive,
Since k must be positive.
The smallest positive n is n = 1, and [-1]=0,
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Fnd the volume of each cylinder below.9.18 in15 in
9) We can calculate the volume as the product of the base area and the height.
The base is a circle with radius r=18 in. Then, its area is:
\(A_b=\pi r^2=\pi\cdot18^2=324\pi\)Then, we can calculate the volume V as:
\(V=A_b\cdot h=324\pi\cdot15=4860\pi\)10) In this case the circular base is on the side, but we can still use the same principle to calculate the volume.
The area of the base with diameter D = 11 in is:
\(A_b=\frac{\pi D^2}{4}=\frac{\pi\cdot11^2}{4}=\frac{\pi\cdot121}{4}=\frac{121}{4}\pi\)Then, we can calculate the volume V as:
\(V=A_b\cdot h=\frac{121}{4}\pi\cdot21=\frac{2541}{4}\pi=635.25\pi\)Answer:
9) V = 4860π
10) V = 635.25π
please help it's easy
The order of the steps which can be used to determine an unknown value using proportion method is as follows:
Option B ---> D---> E---> A----> C.
What is a ratio?A ratio can be defined as the expression that compares the quantity of a value that can be found in another value.
The correct step that can be used to find the a missing value when proportion method is used is as follows;
Step 1: Identify the two quantities being compared
Step 2: Write the ratio for the two known quantities
Step 3: Write a ratio that has the unknown and the know quantity.
Step 4: Equate the two ratios
Step 5: Cross multiply and solve for the unknown quantity. Describe the solution.
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