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Related Questions
if the spinner was spun 50 times and landed on 11 fifteen times, which statement is true?
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Answer:
The last one.Because the experimental probability is 11 ÷ 50, which is 22%, and the theoretical probability is 1 ÷ 8, which is 12.5%
Please Help 50 POINTS!!
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Answer:
D. \(\frac{(x-7)^2}{8^2} -\frac{(y-2)^2}{7^2}\)
Step-by-step explanation:
hope this helps
Answer: D has the largest perimeter
Step-by-step explanation:
The top numbers of fractions describe the vertex and the bottom number square rooted tells you how long each or wide each part of the asymptote rectangle is.
A.
P = 2(11) + 2(3)
P = 22+6
P=28
B.
P = 2(4) + 2(9)
p = 8 +18
P = 26
C.
P = 2(5) + 2(9)
P = 10 +18
P = 28
D.
P = 2(8) + 2(7)
P = 16 +14
P = 30
A coffee shop is running a promotion where a number of free coffee samples are given away each day. The equation above can be used to model the number of free coffee samples, y, that remain to be given away x days after the promotion began. What does it mean that (11, 0) is a solution to this equation?
110xy = 1,210
A) During the promotion, 11 samples are given away each day.
B) It takes 11 days during the promotion to see 1,210 customers.
C) It takes 11 days during the promotion until none of the samples are remaining.
D) There are 11 samples available at the start of the promotion
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Answer:
C
Step-by-step explanation:
First, let us clarify what (11, 0) represent
(x, y) ---> (11, 0)
The values are as followed:
x = 11
y = 0
If the problem states that x is the number of days after the promotion started, then it will be 11 days.
When we assert that it has been 11 days, we rule answers A and D.
If the problem states that y is the number of free coffee samples that remain after 11 days (because x is included in this statement), then it will be 0 samples.
Therefore, the answer will be C. After 11 days of the promotion, there will be 0 samples that are left.
Multiplying with Monomials 1) −7x^2(−3x^2 + xy + 5y^2)2) 3y(7x^2 − 2xy − 9y^2)
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The equation are given as
\(\begin{gathered} -7x^2(-3x^2+xy+5y^2) \\ 3y(7x^2-2xy-9y^2) \end{gathered}\)Explanation1. The equation is given as
\(-7x^2(-3x^2+xy+5y^2)=21x^4-7x^3y-35x^2y^2\)AnswerThe answer is
\(21x^4-7x^3y-35x^2y^2\)2. The equation is given as
\(3y(7x^2-2xy-9y^2)=21yx^2-6xy^2-27y^3\)AnswerThe answer is
\(21yx^2-6xy^2-27y^3\) State whether each sentence is true or false. If false, replace the underlined term to make a true sentence.
Euclidean geometry refers to geometrical systems that are not in accordance with the Parallel Postulate.
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The given statement is False. Non-Euclidean geometry refers to geometrical systems that are not in accordance with the Parallel Postulate.
Euclidean geometry a mathematical system in which we study of plane and solid figures on the basis of axioms and theorems employed by the Greek mathematician Euclid.
Parallel Postulate is one of the five postulates of Euclidean geometry. It is Euclid's fifth postulate which states that through any given point not on a line there passes exactly one line parallel to that line in the same plane. Non-Euclidean geometry refers to geometrical systems that are not in accordance with the Parallel Postulate.
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You earn $9 per hour. Which equation shows the relationship between the time worked in hours, t, and the money earned in dollars, m?
a) t = 9m b) m = 19t c) m = 9t d) m = -9t
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Answer:C
Step-by-step explanation:
c amount made in hour (9) times the number of hours workd (t) equals m
9t=m for example you work 5 hours 9(5)=45 so the answer is c m=9t
An ellipse has a center at the origin, a vertex along the major axis at (10, 0), and a focus at (8, 0).
Which equation represents this ellipse?
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\(\rm \dfrac{ x^2 }{100} + \dfrac{ y^2}{36} = 1\) is the equation of the ellipse.
What is the equation of an Ellipse ?The equation of an ellipse is given by
\(\rm \dfrac{ (x-h)^2 }{a^2} + \dfrac{ (y-k)^2}{b^2} = 1\)
here
(h,k) is the center
c = is the distance between center to focus
c = \(\rm \sqrt{a ^2 - b^2}\)
as the a = 10 , component length
and c = 8
8 = \(\rm \sqrt{10 ^2 - b^2}\)
8² = 10² -b²
b² = 36
b = 6
h = 0 ,k = 0
Substituting the values given
\(\rm \dfrac{ (x-0)^2 }{10^2} + \dfrac{ (y-0)^2}{6^2} = 1\)
\(\rm \dfrac{ x^2 }{100} + \dfrac{ y^2}{36} = 1\)
Therefore the equation of the ellipse has been determined.
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Mr. Ramsey just finished bathing his kids, and now he is draining the tub. The tub contains 32 gallons of water and is draining at a rate of 3 gallons per minute. After 7 minutes, how many gallons are left in the tub?
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The tub starts with 32 gallons. Every minute it loses 3 gallons.
So after 1 minute it has lost 3 gallons. For example:
32-3= 29 Meaning that after 1 minute the tub has 29 gallons left.
Now you have to remember that the tub is draining for 7 minutes. So it is losing 3 gallons 7 times, because it loses 3 gallons each minute and there are 7 minutes.
We can use multiplication to find how many gallons the tub loses after 7 minutes. This sign “X” basically means “groups of”. We have 7 groups of 3, or
7 X 3
This is the same as saying we have 3, 7 times. Written like this:
3+3 +3 +3 +3 +3 +3 = 21
So after 7 minutes the tub has lost 21 gallons.
Now we take the original number of gallons and take away what was lost:
32-21=11
So there are 11 gallons left after 7 minutes.
Please let me know if you need any further explanation. Hope this helped.
Answer:
y=-3x + 32
Hope this
what is the greatest common factor for 9m+ 27m²
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Answer:
9m
Step-by-step explanation:
Both of them are divisible by 9 and 1 m
When you factor and pull out 9m, you will get
9m (1 + 3m)
3 separate venn diagram questions that I need help with. I would like to see the steps to see how you got the answers, thanks..
Answers: 6) 7 NOTE: I keep getting 14 instead of 7.
9) 63 NOTE: I get 60.
13) a) 36
b) no clue
c) 1
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I'll do problem 6 to get you started
x = number of people training all 3 sports.
This is because all 3 sports are needed for the triathlon
There are 35 swimmers total. 9 of which are also cyclers (but not runners), and there are 13 swimmers who are also runners (but not cyclers)
That leaves 35-9-13-x people who are swimmers only. I'll leave this expression un-simplified so you can see where the numbers are coming from. Take note of where I'm placing this in the venn diagram below.
There are 32 cyclers. Of this group, 9 are swimmers (but not runners) and 11 are runners (but not swimmers). That leaves 32-9-11-x people who are cyclers only.
There are 38 runners. Of this group, 13 are swimmers (but not cyclers) and 11 are cyclers (but not swimmers). That leaves 38-13-11-x people who are runners only.
All of these values are honestly hard to keep track of. This is why a visual approach using a Venn Diagram is recommended. See the diagram below.
The idea is that every value in the diagram then adds up to the 58 total attendees. This helps form the equation needed to solve for x.
Such an equation is possible because each attendee participates in at least one of the sports mentioned. No values will be outside of all three circles at the same time.
(35-9-13-x)+(32-9-11-x)+(38-13-11-x)+(9)+(13)+(x)+(11)=58
-2x+72 = 58
-2x = 58-72
-2x = -14
x = -14/(-2)
x = 7
Answer: There are 7 people training for all three sports
HELP ME PLS ILL GIVE BRAINLIEST
Answers
Answer: r - 3.5 <= 10
Step-by-step explanation:
-12 - 3.5 = -15.5
-15.5 <= 10
[24+9-(5x3)+10]÷2
what is the value of the following the expression
Answers
Answer:
14
Step-by-step explanation:
\((33 - (15) + 10) \div 2 \\ 33 - 15 + 10 \div 2 \\ 18 + 10 \div 2 \\ 28 \div 2 \\ = 14\)
Answer:14
Step-by-step explanation:1/2 (24+9- 5 x 3 + 10
help plz help help help plz
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In Exercises 20-25, find the standard matrix of the linear transformation from R2 to R2. 20. Counterclockwise rotation through 120 degree ab origin the 21. Clockwise rotation through 30degree about the origin 22. Projection onto the line y = 2x 23. Projection onto the line y=-x 24. Reflection in the line y = x
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Answer:
please screen shot it so we cna help you
HELP DUE IN 15 MINS! ΔLMN ~ ΔPQR. Which of the following sets of side lengths could be those of ΔLMN?
A. 2 cm, 3 cm, 4 cm
B. 6 cm, 7 cm, 8 cm
C. 8 cm, 15 cm, 17 cm
D. 9 cm, 12 cm, 15 cm
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Answer: D.
Step-by-step explanation:
If the triangle PQR has sides from biggest to smallest 3,4,5 we need another triangle with a similar ratio to compare it to.
9/3= 3 12/3=4 15/3=5
So the answer is D because I can divide all the sides of the new triangle by the same number to get the sides of triangle PQR
Answer:
D. 9 cm, 12 cm, 15 cmStep-by-step explanation:
Given
ΔLMN ~ ΔPQRΔPQR has sides ratio 3 : 4 : 5
ΔLMN should also have same ratio and the ratio of corresponding sides should be same.
Let's verify the options:
A. 2 : 3: 4
2/3 = 3/4 = 4/5 - this is incorrectB. 6 : 7 : 8
6/3 = 7/4 = 8/5 - this is incorrectC. 8 : 15 : 17
8/3 = 15/4 = 17/5 - this is incorrectD. 9 : 12 : 15
9/3 = 12/4 = 15/5 = 3 - this is correctIn the derivation of the quadratic formula by completing the square, the equation is created by forming a perfect square trinomial. What is the result of applying the square root property of equality to this equation?
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Answer:
The result is
x + b/2a= ±√[(b² - 4ac)/2a]
Step-by-step explanation:
In the derivation of the quadratic formula by completing the square, the equation is created by forming a perfect square trinomial
ax² + bx + c = 0
x² + (b/a)x + c/a = 0
x² + 2(b/2a)x + b²/4a² - b²/4a² + c/a = 0
(x + b/2a)² - b²/4a² + c/a = 0
(x + b/2a)² = b²/4a² - c/a
(x + b/2a)² = (b² - 4ac)/2a
Apply square roots to both sides
x + b/2a= ±√[(b² - 4ac)/2a]
it can also be explained as B on edg :)
which number describes the average amount of error in the regression line's predicted rotten tomato ratings?
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The average amount of error in the regression line's predicted rotten tomato ratings is typically represented by the root mean squared error (RMSE).
The average amount of error in the regression line's predicted rotten tomato ratings is typically described by the root mean squared error (RMSE). RMSE is a common metric used to evaluate the accuracy of a regression model's predictions. It represents the square root of the average squared differences between the predicted values and the actual values.
By calculating the RMSE for the regression line's predicted rotten tomato ratings, you can determine the average amount of error in those predictions.
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# no spams
ans should be well explained
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Answer:
231 m²₹ 4620Step-by-step explanation:
See the attached.
The path goes along the perimeter of the park and parallel to the sides, something like the picture attached.
The path is 1 m wide and the total length is:
50*3 + 30*3 = 240 mWe need to consider the dark cells points in the picture with reflects the overlaps. They are counted twice and each is 1 m x 1 m.
Subtracting the duplicated area 9 x 1 m² to get the total area of the path:
240 - 9 = 231 m²The cost of cementing is:
231*20 = 4620
Abe had 156.43$ in his bank account at the beginning of the month. He made the two withdrawals shown in his check register. How much money does he have left in his bank account? He must have at least 100$ in his account by the end of the month or he will be charged a fee. How much money does he need to deposit to avid being charged a fee?
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Answer:
$92.05$7.95Step-by-step explanation:
1. Abe had $156.43 in his account and then withdrew $24.97 and $39.41. The amount left is;
= 156.43 - 24.97 - 39.41
= $92.05
2. He needs to have at least a $100 to avoid a fee so the minimum he needs to deposit is;
= 100 - 92.05
= $7.95
I need help with 2 math questions ASAP- Marking brainiest answer plus 20 points. I will insert a picture of the following questions.
For question number 1. You’ll need to find the area of top rectangle, area of bottom rectangle, total area of figure.
The 2nd question you’ll need to find area of shaded region. As you can see when it’s correct it changes colors.
I hope you have a blessed day and life for whoever helps me with this.
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Answer:
Area is a measure of how much space there is inside a shape. Calculating the area of a shape or surface can be useful in everyday life – for example you may need to know how much paint to buy to cover a wall or how much grass seed you need to sow a lawn.
This page covers the essentials you need to know in order to understand and calculate the areas of common shapes including squares and rectangles, triangles and circles.
Step-by-step explanation:
I think
marquise run 3 whole 1/4 mile.For 2/3 of his run he ran through a park. answerHow many miles did he run through a park
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Marquise ran a total of 3 and 1/4 miles, with 2/3 of his run taking place in a park.
we need to calculate 2/3 of his total run. First, we convert the mixed fraction of 3 and 1/4 into an improper fraction. Multiplying the whole number (3) by the denominator (4) and adding the numerator (1) gives us 13/4. Now, we add this fraction to the remaining fraction of 1/4, resulting in a total of 14/4.
Next, we determine how many miles Marquise ran through the park. Since 2/3 of his run took place in the park, we multiply 14/4 by 2/3. To do this, we multiply the numerators (14 * 2 = 28) and multiply the denominators (4 * 3 = 12), giving us 28/12.
To simplify the fraction, we can divide both the numerator and the denominator by their greatest common divisor, which is 4. Dividing 28 by 4 yields 7, and dividing 12 by 4 gives us 3. Hence, Marquise ran approximately 7/3 or 2.3 miles through the park, rounded to one decimal place,
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An uncharged sphere consists of two hemispheres: the upper hemisphere (0≤θ<π/2) has a charge per unit volume, rho0, and the lower hemisphere (π/2<θ≤π) has a charge per unit volume, −rhoo. (Consider the two hemispheres infinitely close but not touching so you do not have to consider interface effects.) The radius of each hemisphere is a. a) Find the dipole moment of this arrangement. b) This object may be thought of as a simple dipole, where the total charge of the upper/lower hemisphere is the +/−q of the dipole. Determine the value ' d ' such that the dipole moment would be the same as the hemisphere arrangement. c) Find V(r,θ) very far away from the hemisphere arrangement.
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a) The dipole moment of this arrangement is zero.
b) The value 'd' required for the dipole moment to be the same as the hemisphere arrangement is zero.
c) V(r,θ) very far away from the hemisphere arrangement is zero.
Since the upper hemisphere has a charge density of rho0 and the lower hemisphere has a charge density of -rho0, the total charge on each hemisphere cancels out due to their equal magnitudes and opposite signs. Consequently, the net charge of the entire arrangement is zero. As a dipole moment is defined as the product of charge and the displacement vector between the charges, a dipole moment can only exist when there is a non-zero net charge. Therefore, in this case, the dipole moment of the arrangement is zero.In order for the dipole moment to be the same as the hemisphere arrangement, the value of 'd' should be zero. This implies that the positive and negative charges of the dipole are located at the same point, resulting in their cancellation and hence a zero dipole moment.When observing the hemisphere arrangement from a very far distance, the individual charges of the hemispheres appear to merge, and the arrangement behaves like a point charge at the origin. Since the distance from the observer to the arrangement is significantly larger than the size of the arrangement, the electric potential, V(r,θ), at that distance is essentially zero.Learn more about Dipole moment
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Which expression is equivalent to -6(-2/3+2x)?
Answers
Answer:
4+(-12x)
Step-by-step explanation: Hope this helped!
Could I please get a solutions for these problems down below thank you.
1. Select the correct statement(s) regarding FM.
a. FM is considered "envelope modulation" because the amplitude of the modulated carrier does not change with the message
b. AM is better than FM regarding noise rejection
c. Bessel functions are used to determine modulated carrier amplitudes in the time domain
d. all statements are correct. A unipolar signal crosses zero, while a bipolar signal always remains positive.
True
False
3. What is the difference between M-ary line coding and M-ary modulation?
a. there is no difference
b. M-ary line coding results in a baseband signal, while M-ary modulation results in a modulated digital signal. c. M-ary line coding applies to digital baseband signals, while M-ary modulation applies to analog signals
d. Hartley’s Law applies to M-ary line coding but not to M-ary modulation
4. A modulated signal represents digital data using a set of frequencies {f1, f2, f3, f4, f5, f6, f7, f8}. What is the digital modulation technique and how many bits can a single symbol represent?
a. FSK, 2 bits per symbol
b. FSK, 3 bits per symbol
c. PSK, 4 bits per symbol
d. PSK, 2 bits per symbol
Answers
The modulated signal represents 16 possible combinations of 4 bits, with each combination assigned to one of the frequencies in the set.
1. Correct statement(s) regarding FM is as follows:
a. FM is considered "envelope modulation" because the amplitude of the modulated carrier does not change with the message.d. all statements are correct. A unipolar signal crosses zero, while a bipolar signal always remains positive.
False statement: AM is better than FM regarding noise rejection.
2. The difference between M-ary line coding and M-ary modulation is that M-ary line coding results in a baseband signal, while M-ary modulation results in a modulated digital signal. Thus, option (b) is correct.
3. Given, a modulated signal represents digital data using a set of frequencies {f1, f2, f3, f4, f5, f6, f7, f8}. We need to identify the digital modulation technique and how many bits a single symbol can represent.
The frequency set given here represents an FSK (Frequency Shift Keying) digital modulation technique. Therefore, option (a) is correct. A single symbol in FSK can represent 2 bits.
So, the modulated signal represents 16 possible combinations of 4 bits, with each combination assigned to one of the frequencies in the set.
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why we need to adding and subtracting fractions with unlike denominators worksheets
Answers
Adding and subtracting fractions with unlike denominators is an important skill for students to master in order to understand basic math concepts.
Unlike denominators are two fractions that have different denominators, such as 1/3 + 1/4. When fractions are added together with unlike denominators, the result is a fraction with a denominator that is a common multiple of the two original denominators.
Worksheets can provide students with the practice and repetition needed to become fluent in this skill.
Worksheets can help to provide context for the concept by explaining the steps involved in solving the problem. This can give students a better understanding of the concepts behind adding and subtracting fractions with unlike denominators and make them more confident in their abilities.
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Is this the right answer?
Answers
Answer:
Hello!
Number 2 and 4 is wrong, other than that everything else is all good.
\(2)\) \(6x^4 - 12x^5 + 90x^1^{3}\)
The Greatest common factor is 6x^4.
The GCF needs to have the smallest exponent from the variables.
The correct answer should be 6x^4 ( 1 - 2x + 15x^9)
\(4)\) \(x^2 - 36\)
x (x - 36) is wrong because if we use the distributive property, the answer would be x^2 - 36x. Notice that there shouldn't be a variable multiplying 36.
The correct answer would be (x - 6)(x + 6)
x^2 + 6x - 6x - 36
x^2 - 36.
Hope this helps!
SK Find the missing fraction.
2
7
Str
fra
+
5
10
Со
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Answer:
5
-
5
Step-by-step explanation:
Mhm- thats kinda all
hey please!! Thank you <33
Answers
Answer:
h÷2
Step-by-step explanation:
\(2\:gallons =1\:hour\\2 \: gallons = h \:hours\\2h = 2\\\frac{h}{2} = \frac{2}{2}\)
Which number do you add to 3 to get 0?
Answers
Explanation: you have to get to zero so you add the opposite number
Answer:
-3
Step-by-step explanation:
-3 + 3 = 0
Qué significa a^2 en matemáticas es la mi trabajo
Answers
In mathematics, "\(a^2\)" denotes the square of a number or variable "a." It is calculated by multiplying "a" by itself.
How to illustrate with an example4For example, if "a" is 5, then a^2 would be 5*5, which equals 25. When "a" represents a positive number, its square is always positive.
If "a" is negative, its square is still positive since a negative multiplied by a negative results in a positive.
In geometrical terms, if "a" represents the length of the side of a square, then a^2 represents the area of that square. This notation is part of the general concept of exponentiation.
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The Question in English
What does a^2 mean in mathematics