Classify the polynomial.
4y – 5xz
Answer:
4y-5xz has a degree of 2
Step-by-step explanation:
The degree of an expression the the largest degree of any of its terms.
The degree of a term is the sum of the exponents of the variables in that term.
4
y
=
4
y
1
has a degree of 1
5xz=5x1z1
has a degree of ( 1+1)=2
(5xz)
has a higher degree than
(4y)
Therefore the degree of the expression is the degree of
(5xz) , namely 2
HELPPPPPPPPPPPPPP FASTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
out of 300 7th graders that use a computer 5-10 hours would be around 260 children. out of 360 seventh graders that use a computer 10 hours or less each week will be around 300
find a polynomial of degree n that has the given zero(s). (there are many correct answers.) x = −9; n = 2
The correct answer is a polynomial of degree 2 with x = -9 as a zero. There are infinitely many correct answers because we can multiply this polynomial by any nonzero constant and still have a polynomial with the same zero.
To find a polynomial of degree n with a given zero, we can use the fact that if x = a is a zero of a polynomial, then (x - a) is a factor of the polynomial.
In this case, the given zero is x = -9. Since the degree of the polynomial is n = 2, we can write the polynomial as:
\(P(x) = (x - (-9))^2\)
Expanding this expression, we get:
\(P(x) = (x + 9)^2\)
This is a polynomial of degree 2 with x = -9 as a zero. There are infinitely many correct answers because we can multiply this polynomial by any nonzero constant and still have a polynomial with the same zero.
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20z-8 please helpppp
Answer: 4(5z−2)
Step-by-step explanation: Brainliest pls
А.
12 in.
B
15 in.
С
Find the area of the rectangle ABCD.
[?] in. O
Enter
Answer:
A =180 in ^2
Step-by-step explanation:
The area of a rectangle is given by
A = lw where l is the length and w is the width
A = 15 * 12
A =180 in ^2
Answer: The Area of that figure would be 180
Step-by-step explanation:
You would multiply 12 and 15 to get your answer
Raj encoded a secret phrase using matrix multiplication. Using A = 1, B=2, C = 3, and so on, he multiplied the clear
25
C-
0-1² 914
text code for each letter by the matrix
representing the encoded text is
location of spaces after you decode the text.
YUMMY IS THE CORN
THE TOMATO IS RED
THE CORN IS YUMMY
RED IS THE TOMATO
Mark this and return
to get a matrix that represents the encoded text. The matrix
85 111 135 111 95 101 153
38 46 55 45 41 44 64
Save and Exit
What is the secret phrase? Determine the
Next
Submit
The secret phrase include the following: C. THE CORN IS YUMMY.
How to determine the secret phrase?Based on the information provided above, we can logically deduce that the square matrix A represent the encoder.
Assuming the matrix X represent the secret phrase and the matrix B represent the encoded text, the relationship between the three matrices can be modeled by the following equation:
AX = B
X = A⁻¹B
Next, we would multiply the inverse matrix A⁻¹ by matrix B as follows;
\(X=\left[\begin{array}{ccc}-2&5\\1&-2\end{array}\right] \times \left[\begin{array}{ccccccc}85&111&135&111&95&101&153\\38&46&55&45&41&44&64\end{array}\right]\\\\\\X=\left[\begin{array}{ccccccc}20&8&5&3&15&18&14\\9&19&25&21&13&13&25\end{array}\right]\)
By converting the numbers in matrix X to alphabet, we have:
T = 20 I = 9
H = 8 S = 14
E = 5 Y = 25
C = 3 U = 21
O = 15 M = 13
R = 18 M = 13
N = 14 Y = 25
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Find the difference quotient off, that is, find fly+h)-f(x) h h#0, for the following function. Be sure to simplify. f(x) = x^2 - 7x + 8 f(x+h)-f(x) h
The difference quotient for the function f(x) is \(h+2x-7\)
Given :
Difference quotient formula
\(\frac{\left(f\left(x+h\right)-f\left(x\right)\right)}{h}\)
Given function \(f(x) = x^2 - 7x + 8\)
find the difference quotient using the formula
first we find out f(x+h) using given f(x)
replace x with x+h
\(f(x) = x^2 - 7x + 8 \\f(x+h)=\mathrm{ }\left(x+h\right)^2-7\left(x+h\right)+8\\Expand \; and \; simplify\\f(x+h)=x^2+2xh+h^2-7\left(x+h\right)+8\\f(x+h)=x^2+2xh+h^2-7x-7h+8\)
Now replace it in our formula and also replace f(x)
\(\frac{\left(f\left(x+h\right)-f\left(x\right)\right)}{h}\\ \frac{x^2+2xh+h^2-7x-7h+8-(x^2 - 7x + 8)}{h} \\\frac{x^2+2xh+h^2-7x-7h+8-x^2 + 7x - 8}{h} \\\\\frac{h^2+2xh-7h}{h}\\factor \; out \; h\\\frac{h\left(h+2x-7\right)}{h}\\h+2x-7\)
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What are the correct answers
NEED ANSWER ASAP PLEASE
Answer:
Step-by-step explanation:
4) A photograph costs $20, so the cost of x photographs is 20x.
Similarly, the cost of y prints is $25.
So the total cost is 20x+25y, and this has to be less than or equal to 400, so C.
5) just plug each pair in.
For example for the first option, x=5 and y=10, and since 20(5)+25(10)=100+250. which is less than or equal to 400, it works.
Find AB I need help ASAP please
Answer:
AB= 94
Step-by-step explanation:
43+43= 86
180-86= 94
Assuming the sample size of 50 wind speeds recorded in a month and this indicates that it has an average speed of 7,514 m / s. If the standard deviation is assumed to be 1.64 m/s, indicate whether the average velocity of the following month would be greater than 8 m/s, calculate by the classical method and by the P-value method, and draw your engineering conclusions. Use a significance level of 0.05
Based on the classical method, we fail to reject the null hypothesis, indicating that the average velocity of the following month is not significantly greater than 8 m/s. However, using the p-value method, we reject the null hypothesis, suggesting that the average velocity of the following month is significantly greater than 8 m/s.
The classical method involves calculating the test statistic and comparing it to the critical value, while the p-value method involves comparing the p-value to the significance level.
To determine whether the average velocity of the following month would be greater than 8 m/s, we will perform a hypothesis test.
The null hypothesis (\(H_0\)) is that the average velocity is not greater than 8 m/s, and the alternative hypothesis (\(H_a\)) is that the average velocity is greater than 8 m/s.
Using the classical method, we can calculate the test statistic, which is the z-score.
The formula for the z-score is given by (\(\bar{x}\) - μ) / (σ / √n), where \(\bar{x}\) is the sample mean, μ is the population mean (8 m/s in this case), σ is the population standard deviation (1.64 m/s), and n is the sample size (50).
Plugging in the values, we have z = (7.514 - 8) / (1.64 / √50) ≈ -2.168.
Next, we compare the test statistic to the critical value. Since we are testing for the average velocity being greater than 8 m/s, we are performing a one-tailed test.
At a significance level of 0.05, the critical value is approximately 1.645. Since the test statistic (-2.168) is less than the critical value (-1.645), we fail to reject the null hypothesis.
Using the p-value method, we calculate the p-value associated with the test statistic.
The p-value represents the probability of observing a test statistic as extreme as the one calculated, assuming the null hypothesis is true. In this case, the p-value is approximately 0.015.
Comparing the p-value to the significance level of 0.05, we see that the p-value is less than the significance level. Therefore, we reject the null hypothesis.
In conclusion, based on the classical method, we fail to reject the null hypothesis, indicating that the average velocity of the following month is not significantly greater than 8 m/s.
However, using the p-value method, we reject the null hypothesis, suggesting that the average velocity of the following month is significantly greater than 8 m/s.
This discrepancy highlights the importance of the chosen statistical method and interpretation, which can lead to different conclusions.
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help me please i don’t get it
Answer:
I'm not the best sorry
Step-by-step explanation:
Suppose bob's exam score was at the 80th percentile on an exam whose mean was 90. what was bob's exam score?
The mean score of 90, and percentile of Bob's score of 80, gives Bob's exam score as approximately 92.5%
What is the formula that gives the exam score from the percentile?The Z-Score of the 80th percentile is 0.8416
The formula for Z-Score is presented as follows;
\(z = \frac{x - \mu}{ \sigma} \)
Where;
\( \sigma = The \: standard \: deviation\)
\( \mu = The \: mean = 90\%\)
x = The given score
Taking the mean as a proportion, we have;
\( \sigma = \sqrt{\frac{\mu \cdot (1-\mu)}{n}}\)
Which gives;
\( \sigma = \sqrt{\frac{0.9 \times (1-0.9)}{100}}= 0.03\)
Therefore, when z = 0.8416, gives;
\(0.8416 = \frac{x - 0.9}{ 0.03} \)
x = 0.8416 × 0.03 + 0.9 ≈ 0.925
Therefore;
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if 1/3 of the data is deleted, what fractional part of the flash drive is full
Answer:
2/3
Step-by-step explanation:
Answer:
2/5
Step-by-step explanation:
What is the value of x below? *
A diagram with line m parallel to line n is shown.
Answer:
Step-by-step explanation:
The sum of those two angles must be 180 degrees.
3x+10+80=180
3x+90=180
3x=90
x=30
Solve using suitable properties. Also mention the names of the property used. -3/4 × 4/5 - 1/2 × 1/4 +4/5 × 7/5
Answer:
0.395
Step-by-step explanation:
We need to solve the given expression.
\(-\dfrac{3}{4}\times \dfrac{4}{5}-\dfrac{1}{2}\times\dfrac{1}{4}+\dfrac{4}{5}\times \dfrac{7}{5}\)
We can also write it as :
\(-\dfrac{3}{4}\times \dfrac{4}{5}+\dfrac{4}{5}\times \dfrac{7}{5}-\dfrac{1}{2}\times\dfrac{1}{4}\\\\=\dfrac{4}{5}(\dfrac{-3}{4}+\dfrac{7}{5})-\dfrac{1}{2}\times\dfrac{1}{4}\)(Distributive property is used)
So,
\(=\dfrac{4}{5}\times \dfrac{13}{20}-\dfrac{1}{2}\times\dfrac{1}{4}\\\\=\dfrac{4}{5}\times \dfrac{13}{20}-\dfrac{1}{8}\\\\=\dfrac{13}{25}-\dfrac{1}{8}\\\\=0.395\)
So, the value of the given expression is equal to 0.395.
How to find x^2=5 using radicals
Answer: x= √5, x = -√5
Step-by-step explanation:
To simplify x^2 = 5, square root both sides to get:
√(x^2) = √5
Then, to simplify √(x^2), you can cross out the √ and the exponent, and add a +-, as the square root of x^2 is |x|, or +-x.
You then get x = √5, and -x = √5, and for the -x = √5, multiply both sides by -1 to get x = -√5.
por liquidación,toda la ropa de invierno está en oferta,te descuentan 50 pesos por cada 100 pesos que compres ¿cuanto se deberá pagar por una chamarra cuyo precio y otal es de 850 pesos?
Answer:
no comprendo
Step-by-step explanation:
3 sin A - cos A-2 sin A + 2 COSA
Answer:
The answer is sinA + cosA
Step-by-step explanation:
3 sinA – cosA – 2 sinA + 2 cosA
3 sinA – 2 sinA – cosA + 2 cosA
sinA + cosA
Thus, The answer is sinA + cosA
-TheUnknownScientist 72
One-fifth of a bread loaf was shared equally among Herb, Dara, Mark, and Lily. What fraction of the original bread loaf did each person get?
Using the provided values and information, The answer is each person would receive 1/5 of the original bread loaf.
What do you mean by proportion?A proportion is a mathematical statement that compares two ratios. It is an equation that states that two ratios are equal, such as "a/b = c/d." Proportions are often used to solve problems involving fractions, decimals, and percentages. For example, if you know that a particular recipe calls for two cups of flour for every one cup of sugar, you can use this proportion (2/1 = x/3) to figure out how much sugar you need if you want to triple the recipe. The proportion can also be written as 2:1 = x:3.
What do you mean by ratio?A ratio is a mathematical comparison of two or more quantities, typically represented as a fraction. It is a way to compare the size of two or more things. For example, if a recipe calls for 2 cups of flour to 1 cup of sugar, the ratio of flour to sugar is 2:1. This means that for every 2 units of flour, there is 1 unit of sugar. Ratios can also be written using the colon symbol (:) or the word "to". For example, the ratio 2:1 can also be written as 2/1 or 2 to 1. Ratios can be simplified by dividing both the numerator and denominator by a common factor and can be used to compare quantities in different units.
Each person would get 1/5 of the original bread loaf. If the bread is divided equally among four people, then each person would receive 1/4 of the total amount. Since 1/5 is the same as 4/20, and 4 people are receiving the bread, then each person would receive 1/5 of the original bread loaf.
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Which pair of angles I corresponding angles?
1. Angles R and V
2. Angles R and S
3. Angles R and U
4.Angles R and Y
Answer:
option a. angle r and v.
........
A rectangular prism and a pyramid have congruent bases and equal altitudes.Wha is the retio between the volume of the pyramid to the volume of the rectangular prism.What is the answer
Answer:
The required ratio is 1 : 3.
Step-by-step explanation:
Let the length is L, width is W and the height is H.
Volume of the prism is
V = LW H
Volume of the pyramid
V' = 1/3 L W H
Ratio of volume of pyramid to the prism is
\(\frac{V'}{V} = \frac{1}{3}\)
Funsters inc. , the largest toy company in canada, sells its most popular doll for $35. It has just learned that its leading competitor toysorama is mass producing an excellent copy and plans to flood the market with their $10 doll in 6 weeks. What should funsters do?.
Funsters inc. , the largest toy company in canada, sells its most popular doll for $35. It has just learned that its leading competitor toysorama is mass producing an excellent copy and plans to flood the market with their $10 doll in 6 weeks. Funsters should increase the supply of its doll now before the other doll hits the market.
The Benefits of Business Competition1. Addressing Customer Needs
Often business competition motivates brands and businesses to meet customer needs, vying to be more effective than their competitors. This encourages brands to develop an understanding of audience needs.
This competition resulted in a focus on meeting customer needs including higher quality products, increased service value, and increased customer satisfaction.
2. Analyze Strengths and Weaknesses
Business competition can drive an evaluation of strengths and weaknesses, as well as optimizing sales strategies based on these findings. This enables a business to maximize resources, make informed decisions about marketing and sales strategies, and tailor offerings according to their strengths.
3. Increasing Demand
Business competition is an effective way to increase demand for a product or service. As more companies invest in their marketing and advertising efforts, the consumer demand for their products and services may increase as brand awareness increases.
3. Encouraging Innovation
In order to gain an advantage in the market, business competition can drive to innovate strategies and improve their products or services in creative ways. This is an important contribution to continuously improving the quality of goods and services, advancing product and service technology, and adapting to changing consumer needs.
4. Show Excellence
A business often tracks and analyzes competitors' performance to gain insight into their business strategy. By studying competitors' tactics, a business will be able to demonstrate their superiority in the market. So that many businesses can develop strategies that will result in success.
5. Promoting Business
Continuous business development can be an important factor in long-term success. Business competition is often challenging to continue to increase brand awareness, promote, analyze success, and develop new methods to achieve even bigger goals.
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In the data set below, what is the mean absolute deviation?
8 4 2 3 6
If the answer is a decimal, round it to the nearest tenth.
mean absolute deviation (MAD):
The mean absolute deviation of the given data set is 1.6 (rounded to the nearest tenth).
We have,
In statistics, the mean (also known as the arithmetic mean or average) is a measure of central tendency that represents the sum of a set of numbers divided by the total number of numbers in the set.
To find the mean absolute deviation (MAD), we need to first calculate the mean of the given data set:
mean = (4 + 5 + 7 + 9 + 8) / 5 = 6.6
Next, we calculate the deviation of each data point from the mean:
|4 - 6.6| = 2.6
|5 - 6.6| = 1.6
|7 - 6.6| = 0.4
|9 - 6.6| = 2.4
|8 - 6.6| = 1.4
Then we find the average of these deviations, which gives us the mean absolute deviation:
MAD = (2.6 + 1.6 + 0.4 + 2.4 + 1.4) / 5 = 1.6
Therefore, the mean absolute deviation of the given data set is 1.6 (rounded to the nearest tenth).
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why plant propagation is important?
Answer:
so the plants will grow more
Answer:
Importance of plantspropagation :Multiply the different species in large number. Protect the plant species which are endangered. Improve the characteristics and quality of the plants. Produce quality and healthy plants on commercial base.
hope helpful <3
Four years ago, sam invested in grath oil. She bought three of its $1,000 par value bonds at a market price of 93. 938 and with an annual coupon rate of 6. 5%. She also bought 450 shares of grath oil stock at $44. 11, which has paid an annual dividend of $3. 10 for each of the last ten years. Today, grath oil bonds have a market rate of 98. 866 and grath oil stock sells for $45. 55 per share.
Answer:
55.27
Step-by-step explanation:
In a class of students, the following data table summarizes how many students play
an instrument or a sport. What is the probability that a student chosen randomly
from the class plays a sport?
Plays a sport
Does not play a sport
Plays an instrument Does not play an instrument
3
8
10
9
Answer:
3 OR 8 hope this helps!
Step-by-step explanation:
The point (3,-2) is rotated 90º counterclockwise about the origin and then dilated by a scale factor of 4. What are the coordinates of the result.
Answer:
(-2,-3)
Step-by-step explanation:
You make seven dollars and 3/4 per hour if you made 248 last week dollars how many hours did you work
Answer:
Step-by-step explanation:
248/7.25= 34.21
Yvonne is comparing the weights of a semi-truck trailer tire and a mobile home. a semi-truck trailer tire weighs about 102 pounds, and a mobile home weighs about 104 pounds. what is the ratio of the weight of a semi-truck trailer tire compared to the weight of a mobile home?
The ratio of the weight of a semi-truck trailer tire compared to the weight of a mobile home will be 51: 52.
What is the ratio?The utilization of two or more additional numbers that compares is known as the ratio.
The weight of the semi-truck trailer tire is 102 pounds.
The weight of the mobile home is 104 pounds.
The ratio of the weight of a semi-truck trailer tire to a mobile home is given as.
Ratio = 102 / 104
Ratio = 51 / 52
Ratio = 51: 52
The ratio of the weight of a semi-truck trailer tire to a mobile home will be 51: 52.
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Alicia runs a small business mowing yards in the summer. for every yard she mows, she earns $40. however, she spends part of this money on gasoline for her lawnmower. each gallon of gasoline costs $3. write an expression for the amount of money that alicia earns in a day, where y is the number of yards she mows and g is the number of gallons of gasoline she buys.
An expression for the amount of money that Alicia earns in a day is 40y-3g.
Given that, Alicia runs a small business mowing yards in the summer. For every yard she mows, she earns $40. However, she spends part of this money on gasoline for her lawnmower. Each gallon of gasoline costs $3.
We need to find an expression for the given situation.
What is an expression?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.
Now, expression =40y-3g
Therefore, an expression for the amount of money that Alicia earns in a day is 40y-3g.
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Answer: $40y − $3g
Step-by-step explanation: