State the possible number of imaginary zeros and the possible number of positive and negative zeros for each function. descartes rule
show steps
Descartes' Rule of Signs states that the number of positive real zeros of a polynomial can be determined by counting the number of sign changes in the polynomial's coefficients, and that the number of negative real zeros is at most the number of sign changes.
What does a polynomial mean in math?The only operations used in a polynomial are addition, subtraction, multiplication, and non-negative integer exponentiation of the variables. Polynomials are mathematical expressions made up of variables (also known as indeterminates) and coefficients.
What makes a polynomial unique?A polynomial function in an equation is a function that only employs non-negative integer powers or only positive integer exponents of a variable. Examples of such functions include the cubic equation, the quadratic equation, and others. The exponent of the polynomial 2x+5 is 1, for instance.
To know more about polynomial visit:
https://brainly.com/question/11536910
#SPJ4
Find the number for x. (Divide)
8.2x=164
Which represents the inverse of the function f(x) = 4x?h(x) = x + 4• h(x) = x-4h(x) = =xh(x) = )
The function we have is:
\(f(x)=4x\)The steps to find the inverse function are:
Step 1. Solve for x.
In this case, we solve for x by dividing both sides of the equation by 4:
\(\begin{gathered} \frac{f(x)}{4}=\frac{4x}{4} \\ \frac{f(x)}{4}=x \end{gathered}\)Step 2. Change f(x) for x, and x for the inverse function f^-1(x):
\(\frac{x}{4}=f^{-1}(x)\longrightarrow\text{inverse function}\)If we call this inverse function h(x) we get the result:
\(h(x)=\frac{x}{4}\)The queen received a diamond brooch for her birthday. The largest gem weighed 5.1 carats. There were three other gems that weighed 0.7 carats, 1.4 carat, and 2.6 carats. What was the total weight of the gems?
Answer:
9.8 carats.
Step-by-step explanation:
5.1 + 0.7 + 1.4 + 2.6
= 9.8
The graph of a function g is shown below.
Find g (2) and find one value of x for which g(x) = -2.
Answer:
a. 1
b. 1
Step-by-step explanation:
by looking at the graph you can deduce the answer.
The equation for the given graph is g(x) = x²-3, and the value of g(2) will be 5.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
The equation for the function is,
g(x) = x²-3
The graph of a quadratic function that has something bowl-shaped. Any equation of the form ax²+bx+c=0 where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.
(x - h)² = 4a(y - k)
(h, k) is the vertex of the parabola:
a = √[(c-h)² + (d-k²]
(c, d) is the focus of the parabola:
To find the value of g (2) the value of the function is,
g(2) = 2²-3
g(2) =8-3
g(2) =5
Thus, the equation for the given graph is g(x) = x²-3, and the value of g(2) will be 5.
Learn more about the function here:
brainly.com/question/5245372
#SPJ2
Dion has a pizza with a diameter of ten and one third inches.is a square box of 10.38 inches big enough to fit the pizza?
The square box is big enough to fit the pizza?
How to determine if the square box is big enough to fit the pizza?The given parameters are:
Diameter of pizza = ten and one third inches
Length of square box = 10.38 inches
Express the diameter as a numeral.
So, we have:
Diameter of pizza = 10 + 1/3 inches
Evaluate the sum
Diameter of pizza = 10.33 inches
By comparison:
10.33 inches is less than 10.38 inches
This means that the square box is big enough to fit the pizza?
Read more about lengths at:
https://brainly.com/question/24571594
#SPJ1
help need plzzzzzzzzz
Answer:
The answer to the question provided is possibly 2.
Step-by-step explanation:
\( \: \: \: \: \: \: \: \: \: \: \: \: 3y + 77 = 2y + 79 \\ \frac{ - 2y \: \: \: \: \: \: = - 2y}{1y + 77 = 79} \\ \frac{ \: \: \: \: \: \: \: \: - 77 = - 77}{ \frac{1y}{1} = \frac{2}{1} } \\ \\ y = 2\)
In triangle XYZ, XZ =8, XY=12, and YZ=6. In describing one angle of triangle , which statement must be TRUE?
A - ∠Z has the least measure.
B - ∠Y has the least measure.
C - ∠Z has the greatest measure.
D - ∠X has the greatest measure.
In triangle XYZ, XZ = 8, XY = 12, and YZ = 6. We need to determine which statement about the angles of the triangle must be true.
Let's analyze the given triangle using the side lengths:
XZ = 8
XY = 12
YZ = 6
Using the side lengths, we can apply the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
Applying this theorem to triangle XYZ, we have:
XZ + XY > YZ
8 + 12 > 6
20 > 6 (True)
XY + YZ > XZ
12 + 6 > 8
18 > 8 (True)
XZ + YZ > XY
8 + 6 > 12
14 > 12 (True)
From the triangle inequality theorem, we can conclude that the triangle XYZ is a valid triangle.
Now, let's analyze the angles of the triangle. We know that the sum of the angles in any triangle is 180 degrees.
Let's consider each statement:
A - ∠Z has the least measure.
B - ∠Y has the least measure.
C - ∠Z has the greatest measure.
D - ∠X has the greatest measure.
Since we don't have any information about the angle measures directly given, we cannot determine which angle has the least or greatest measure based on the given side lengths.
Therefore, none of the given statements must be true.
Answer: None of the given statements must be true.
To learn more about triangle Click Here: brainly.com/question/2773823
#SPJ11
. An article in the publication Consumer Reports reported the following data: * 35 of 80 randomly selected Perdue-brand chickens tested positive for campylobacter bacteria, salmonella bacteria, or both. * 66 of 80 randomly selected Tyson-brand chickens tested positive for campylobacter bacteria, salmonella bacteria, or both. From these data, would you conclude that the proportion of Tyson-brand chickens that test positive exceeds the proportion of Perdue-brand chickens that test positive
It conclude the Tyson-brand exceeds proportion of Perdue-brand chickens testing positive.
The test statistic and p-value are 2.33 and 0.0001 respectively.
The p-value < significance level, reject null hypothesis.
To test the hypothesis,
The proportion of Tyson-brand chickens testing positive exceeds the proportion of Perdue-brand chickens testing positive,
Use a two-proportion z-test. Let us state the relevant hypotheses.
Null Hypothesis (H₀), p₁ ≤ p₂
Alternative Hypothesis (H₁), p₁ > p₂
Where
p₁ = Proportion of Perdue-brand chickens testing positive
p₂ = Proportion of Tyson-brand chickens testing positive
Now, let us calculate the test statistic and p-value,
First, calculate the sample proportions,
p₁ = 35/80
= 0.4375 (proportion of Perdue-brand chickens testing positive)
p₂= 66/80
= 0.825 (proportion of Tyson-brand chickens testing positive)
Next, calculate the standard error (SE) of the difference between two proportions,
SE = √[(p₁ × (1 - p₁) / n₁) + (p₂ × (1 - p₂) / n₂)]
= √[(0.4375 × (1 - 0.4375) / 80) + (0.825 × (1 - 0.825) / 80)]
≈ 0.0844
Then, calculate the test statistic (z),
z = (p₁ - p₂) / SE
= (0.4375 - 0.825) / 0.0844
≈ -4.5821
Using a significance level of 0.01, the critical z-value for a one-tailed test is approximately 2.33 using z-calculator.
Finally, calculate the p-value associated with the test statistic.
p-value = P(Z > -4.5821)
Using a z-calculator, find that the p-value is very close to 0 (p-value < 0.0001).
Interpreting the results,
Since the p-value (0.0001) is less than the significance level (0.01), we reject the null hypothesis.
Therefore, sufficient evidence to conclude proportion of Tyson-brand chickens testing positive exceeds proportion of Perdue-brand chickens testing positive.
Learn more about proportion here
brainly.com/question/24096656
#SPJ4
The above question is incomplete, the complete question is:
An article in the publication Consumer Reports reported the following data: * 35 of 80 randomly selected Perdue-brand chickens tested positive for campylobacter bacteria, salmonella bacteria, or both. * 66 of 80 randomly selected Tyson-brand chickens tested positive for campylobacter bacteria, salmonella bacteria, or both. From these data, would you conclude that the proportion of Tyson-brand chickens that test positive exceeds the proportion of Perdue-brand chickens that test positive.
Carry out a test of hypotheses using a significance level 0.01. (Use p1 for Brand A and p2 for Brand B.)
State the relevant hypotheses.
Calculate the test statistic and P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.)
How do you find the hypotenuse of a 45-45-90 triangle if you know the length of the legs?
The length of the hypotenuse of a 45-45-90 triangle is √2x units.
To find the hypotenuse of a 45-45-90 triangle, we can use the Pythagorean theorem, which states that in a right triangle, the sum of the squares of the two shorter sides (legs) is equal to the square of the longest side (hypotenuse).
Let's denote the length of each leg of the triangle as "x". Since the triangle is isosceles, both legs are of equal length. Therefore, we can write:
Leg 1 = Leg 2 = x
To find the length of the hypotenuse (which we'll call "h"), we can use the Pythagorean theorem as follows:
x² + x² = h²
Simplifying this equation, we get:
2x² = h²
To solve for h, we need to take the square root of both sides of the equation:
√(2x²) = √(h²)
√2 * x = h
To know more about triangle here
https://brainly.com/question/8587906
#SPJ4
Triangle EFG is transformed to create triangle E'F'G'.
2 triangles have identical side lengths and angle measures. The second triangle is rotated to the right.
Which transformation occurred?
translation
stretch
rotation
reflection
Triangle EFG was transformed to create triangle E'F'G' with identical side lengths and angle measures, and the second triangle is rotated to the right. the transformation is a c. rotation. Therefore, option c. rotation is correct.
Rotation is the change that took place. A figure is transformed by a rotation in which the centre of rotation is moved from one side to the other. Triangle EFG was in this instance rotated to the right, or around a point to the left of the triangle.
The two triangles are said to be congruent if their side lengths and angle measurements are the same. As a result, they are capable of being changed into one another by a series of translations, rotations, and reflections.
A transformation known as a translation involves moving a figure while maintaining its original size and shape. Stretching is a transformation that increases a figure's size while maintaining its shape. A transformation that flips a figure over a line is called a reflection.
for such more question on transformation
https://brainly.com/question/24323586
#SPJ11
Answer: c. rotation is correct.
Step-by-step explanation:
Which of the following terminating decimals is equivalent to Negative 1 and three-fourths?
Answer:
-1.75
Step-by-step explanation:
This should be it, but you didn't provide options although you put "Which of the following.."
Answer:
-1.75 thatis the answer thank you HAHAHAHAHAHA
What is variance process used for in residential property variance.
In the context of property variance, a variance refers to a legal authorization or exception granted to a property owner by the local governing authority. It allows the property owner to deviate from specific zoning regulations or land-use restrictions that would otherwise apply to their property.
The variance process is used when property owners believe that strict adherence to the existing regulations would cause undue hardship or prevent them from fully utilizing their property in a way that is reasonable and consistent with neighboring properties.
The purpose of property variances is to address unique circumstances or hardships that may exist for a particular property. Property variances typically involve submitting an application to the local zoning board or planning department, attending public hearings, and providing evidence or arguments to support the need for the variance.
The governing authority evaluates the application based on factors such as the impact on neighboring properties, public health and safety, and the intent of the zoning regulations. If approved, the property owner is granted permission to proceed with the proposed deviation from the regulations.
Overall, property variances provide flexibility in land-use regulations, allowing property owners to find reasonable solutions that meet their specific needs while still considering the broader community interests and objectives of zoning regulations.
To know more about property variance, refer here :
https://brainly.com/question/32469309#
#SPJ11
what is the square root of 655.36
Answer: 25.6
Step-by-step explanation: Have an Amazing Day :)
Answer:
25.6 this will be the answer
Step-by-step explanation:
Hope it helps
The recommended daily requirement of calcium is 1000 mg. Tap water in a Midwestern city contains approximately 150 mg Ca/L. A person living in the city who drinks two liters of water in one day would receive __________ percent of his/her RDA of calcium.
A person living in a Midwestern city who drinks two liters of tap water containing 150 mg Ca/L would receive approximately 20% of their recommended daily requirement (RDA) of calcium.
The recommended daily requirement of calcium is 1000 mg, and the tap water in the Midwestern city contains approximately 150 mg of calcium per liter. If a person drinks two liters of water in one day, they would consume a total of 300 mg of calcium (150 mg/L * 2 L). To determine the percentage of their RDA, we can divide the amount of calcium obtained from the water (300 mg) by the recommended daily requirement (1000 mg) and multiply by 100.
Mathematically, it would be (300 mg / 1000 mg) * 100 = 0.3 * 100 = 30%. Therefore, a person living in the Midwestern city who drinks two liters of tap water would receive approximately 30% of their RDA of calcium. This means that drinking tap water alone would not fulfill their entire daily calcium requirement, and additional sources of calcium-rich foods or supplements may be necessary to meet their RDA.
Learn more about calcium here:
https://brainly.com/question/30841135
#SPJ11
Dr. Smith purchased a used car for $11,325. Her state charges 8% tax for the car, $53 for the license plates, and $40 for a state safety and emissions inspection. How does she need to play for these extra charges, not including the price of the car?
Answer:
999
Step-by-step explanation:
8% of 11,325 is 906
53 plus 40 is 93
906 plus 93 is 999
Members of alachua district choir were given the choice between romanticism or gothic style singing which style they preferred sing for the state competition
Here is the complete question.
Members of the Alachua district choir were asked when given the choice between romanticism gothic style singing, which style they preferred to sing for state competition. The data was broken down by gender:
48 males preferred Romanticism
63 males preferred Gothic
59 females preferred Romanticism
62 females preferred Gothic
Part A: Fill in and complete the following contingency table. Circle the largest joint frequency and put a box around the smallest marginal frequency.
Romanticism Gothic Total
Males
Females
Total
Part B: Which style was preferred as the state competition piece and by what percentage?
Part C: Which subject was preferred the most by Males?
Part D: What frequency does 125/232 represent?
Answer:
The answer is below
Step-by-step explanation:
Part A:
Romanticism, Gothic, Total
Males 48, 63, 111
Females 59, 62, 121
Total 107, 125, 232
Part B: The preferred style is Gothic by a percentage of
P = 125 ÷ 232
Hence, we have P = 54%
Part C: Based on the table provided, the subject aspired the most by males was Gothic since 63 males chose it over 48 chose Romanticism.
Part D: The frequency 125/232 depicts the total of people that preferred Gothic over the total of people in both categories.
adult men have an average height of 69.0 inches with a standard deviation of 2.8 inches. find the height of a man with a z-score of . round your answer to one decimal place.
The height of a man with a z-score of 0 is 69 inches.
The average height of adult men = 69.0 inches, Standard deviation of adult men = 2.8 inches to find the Z-score the following formula is used:
z = (x- μ)/σ where z is the z-score, x is the value to be standardized, μ is mean and σ is the standard deviation.
To find the height of a man with a z-score of Standardized value(z) = 0
z = (x - μ)/σ
0 = (x - 69)/2.8
x = 69 + 0 (2.8)
x = 69 inches.
Therefore, the height of a man with a z-score of 0 is 69 inches.
To learn more about "Standard deviation": brainly.com/question/13498201
#SPJ11
Use the rules of differentiation to find the derivative of the function. g(x) = 7x + 3. g'(x) =
The rules of differentiation can be applied to find the derivative of the given function, g(x) = 7x + 3. The derivative of a function is the slope of its tangent line at a given point. The derivative of a linear function is a constant. Therefore, the derivative of g(x) is simply the coefficient of x, which is 7.
We can also use the power rule of differentiation to verify this result. The power rule states that if f(x) = x^n, then f'(x) = nx^(n-1). In this case, g(x) = 7x + 3 can be written as g(x) = 7x^1 + 3. Using the power rule, we have:
g'(x) = d/dx (7x^1 + 3)
= 7 * d/dx (x^1) + d/dx (3) (using the sum rule of differentiation)
= 7 * 1x^(1-1) + 0 (using the power rule of differentiation and the derivative of a constant is 0)
= 7x^0
= 7
Therefore, g'(x) = 7. The function g(x) has a constant slope of 7, which means that its graph is a straight line with a positive slope of 7.
To know more about Tangent visit :
https://brainly.com/question/10053881
#SPJ11
PLS HELPPPPPPPPPPPPPPPPP IM GONNA FAIL
Answer:
2520 cm²
Step-by-step explanation:
9 cm x 8 cm x 5 cm x 7cm = 2520 cm²
Answer:
\( \huge \colorbox{blue}{$107 cm^2$}\)
Step-by-step explanation:
to understand thisyou need to know about:geometryPEMDASlet's solve:there are two rectangles
rectangle-1:
\( \quad \: = 9 \times 8 \\ \quad \: = 72\)
rectangle-2:
\( \quad \: = 5 \times 7 \\ \quad \: = 35\)
area of the complex shape
rectangle-1+rectangle-272+35107 cm²Point s is on line segment rt. given rt = 19 and rs = 6, determine the length st
Under the consideration of collinearity of two line segments, the length of the line segment ST is equal to 13.
What is the length of a line segment collinear to another line segment?
According to the statement seen in this question, the line segments RT and ST are collinear to each other. Mathematically speaking, the length of the line segment ST can be found by using the following formula:
RT = RS + ST
ST = RT - RS
ST = 19 - 6
ST = 13
Under the consideration of collinearity of two line segments, the length of the line segment ST is equal to 13.
To learn more on line segments: https://brainly.com/question/25727583
#SPJ1
2. Suppose there are 6 million people in New York City that walk an average of 2.5 miles per day. If we add up all the miles walked by these 6 million how many times around the Earth would these walkers have gone? Assume the distance around the Earth is 2.5 * 10 ^ 4 miles. Write your result in scientific notation.
Answer:
600 timesStep-by-step explanation:
GivenNumber of people:
6 million = 6*10^6Distance to walk:
2.5 miles per day per personDistance around the Earth
2.5*10^4SolutionTotal distance walked:
6*10^6*2.5 = 15*10^6The ratio of total distance to the distance around the Earth:
15*10^6 / 2.5*10^4 = 6*10^2 = 600 timesNumber of people:
6 million = \(6\) × \(10^{6}\)
Distance to walk:
2.5 miles every day per person
Distance around the Earth
\(2.5\) ×\(10^{4}\)
Total distance walked:
\(6\) × \(10^{6}\) × \(2.5\) \(= 15\) × \(10^{6}\)
The ratio of total distance to the distance around the Earth:
\(15\) × \(10^{6}\) / \(2.5\) × \(10^{4}\) = \(6\) × \(10^{2}\) = \(600\)
The Box says it takes 4 eggs to make 12 pancakes. How many eggs did Alfonso use to
make 90 pancakes at the Sunday Church breakfast
Answer:
30 eggs
Step-by-step explanation:
1 egg makes 3 pancakes so 30 eggs would make 90 pancakes becaue the ratio is 1:3.
To find your answer you could have done 90÷3
Which ones correct?
Answer:
D
Step-by-step explanation:
y = 4 is a horizontal line which would be parallel to the x axis
Please help me please
All the values are,
a) lim x → 3 [ 2 f (x) - g (x)] = 18
b) lim x → 3 [ 2 g (x) ]² = 16
c) lim x → 3 [ ∛ f (x) / g (x) ] + lim x → 3 [ 4 h (x) / x + 7 ] = - 1
We have to given that;
Limits are,
lim x → 3 f (x) = 8
lim x → 3 g (x) = - 2
lim x → 3 h (x) = 0
Now, We can simplify all the limits as;
1) lim x → 3 [ 2 f (x) - g (x)]
⇒ lim x → 3 [ 2 f (x)] - lim x → 3 [ g (x) ]
⇒ 2 lim x → 3 [ f (x) ] - (- 2)
⇒ 2 × 8 + 2
⇒ 16 + 2
⇒ 18
2) lim x → 3 [ 2 g (x) ]²
⇒ 4 [ lim x → 3 g (x) ]²
⇒ 4 × (- 2)²
⇒ 4 × 4
⇒ 16
3) lim x → 3 [ ∛ f (x) / g (x) ] + lim x → 3 [ 4 h (x) / x + 7 ]
⇒ ∛8 / (- 2) + 4 × 0 / (3 + 7)
⇒ - 2/2 + 0
⇒ - 1
To learn more about limit visit:
https://brainly.com/question/7446469
#SPJ1
will give brainliest need answer asap
Answer:
Step-by-step explanation:
AB = \(\sqrt{28^2-14^2}\) = \(\sqrt{588} = 14\sqrt{3}\)
Answer:
28
Step-by-step explanation:
lol
Completa el cuadro,escribiendo en la casilla de que corresponde los nombres de los elementos presentes en cada obra.
Answer:
Cada unidad integra los cinco bloques, según el ajuste curricular de Lengua y ... Escribo la letra de la palabra del recuadro, que corresponde al ... Completo el cuadro con las características antes señaladas. ... literarios con nuevas versiones de escenas, personajes u otros elementos. ... oración que presente al animal.
Step-by-step explanation:
(4pts) Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test). Find the IQ score separating the top 14% from the others
A) 83.7
B) 116.2 C) 108.6 D) 99.3
===========================================
Explanation:
We need to find a value of k such that P(X > k) = 0.14
This is equivalent to P(X < k) = 0.86 since 1 - 0.14 = 0.86
Use the invNorm function on a TI84 calculator or similar to input invNorm(0.86,100,15). The result is approximately 116.205 which rounds to 116.2
If you do not have a TI84 or similar, then you can input invNorm(0.86,100,15) into WolframAlpha. It is a free online calculator that can do many tasks beyond a basic calculator. There are many other online calculators that are similar.
You are creating identical picnic basket using 30 sandwiches and 42 apples. What is the greatest number of basket that you can fill using all of the food?
Answer:
Step-by-step explanation:
30: 1, 2, 3, 5, 6, 10, 15, 30
42: 1, 2, 3, 6, 7, 14, 21, 42
greatest number of fill using all of the food is 6
At Madison High School, 600 students are going on a field trip. All 600 students will be placed on buses, and each bus will have an equal number of students. When the organizer increases the number of buses by four and the students are still divided equally among the buses, the number of students per bus decreases by 5. How many students were originally scheduled to take the students on the field trip
The original number of students scheduled to go on the field trip was 600.
Let the original number of buses be "x" and each bus having "y" students, we can use algebra to solve for the number of students on the field trip.
It is given that; x*y = 600, that is, the original number of students is 600. When the organizer increases the number of buses by 4, the number of buses will be (x + 4), and the number of students per bus decreases by 5. We can express this as y - 5.
Hence, the new number of students will be 600 since no new students were added. We can represent this using the equation (x + 4) * (y - 5) = 600.
Substituting x*y = 600, we get x*(y-5) = (x + 4) * (y - 5).
Expanding the equation above, we get; xy - 5x = xy - 5y + 20.
Rearranging, we have 5x - 5y = 20. Dividing both sides by 5, we get x - y = 4.
Substituting xy = 600, we get x * (x - 4) = 600. Solving this quadratic equation, we get x = 24 or x = - 25.
We discard the negative solution. Therefore, the original number of students scheduled to go on the field trip was
24 * 25 = 600 students.
Therefore, the conclusion is that the original number of students scheduled to go on the field trip was 600.
To know more about Substituting visit:
brainly.com/question/29383142
#SPJ11