Answer:
124 is the daily rate of items per worker 1:124
Step-by-step explanation:
Divide 21,452/173 and the answer is 124
How many types of quadratic equations are there give examples?
Quadratic equations can be expressed in three different ways:
1. Standard form
2. Factor form
3. Vertex Form
a\(x^2\) + bx + c = 0 is the quadratic equation's standard form, where 'a' is the leading coefficient and a non-zero real number. Due to the word "quad" meaning "square," this equation, whose degree is 2, is referred to as "quadratic." A quadratic equation can be expressed in other ways in addition to the usual form.
1. Standard form: An equation with a quadratic term has the following standard form y = a\(x^2\) + bx + c where a, b and c are just the numbers.
2. Factor form: An equation with a quadratic term has the following factor forma (x - p)(x - q) = 0
3. Vertex Form: An equation with a quadratic term has the following vertex form a\((x-h)^2\) + k = 0
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TRUE OR FALSE iv. t f: if x is an eigenvector for both 2×2 matrices a and b, then x is an eigenvector for a b.
Answer:
true
Step-by-step explanation:
<3
I need assistance!!!!
Answer:
Step-by-step explanation:
Because midpoints were used to make similar triangles we can say
AC=2(DE)
5x+12=2(9x-20)
5x+12=18x-40
-13x+12=-40
-13x=-52
x=4
AC=5x+12
AC=5(4)+12
AC=20+12
AC=32
Answer:
Step-by-step explanation:
DE = (1/2) * AC {Midpoint theorem}
\(9x - 20 =\frac{1}{2}(5x + 12)\)
2(9x - 20) = 5x + 12
2*9x - 2*20 = 5x + 12
18x - 40 = 5x + 12
18x -5x - 40 = 12
13x - 40 = 12
13x = 12+40
13x = 52
x = 52/13
x = 4
AC = 5x + 12
= 5*4 + 12
= 20 +12
AC = 32
Which of the following graphs does NOT describe y as a function of x?
Answer:
The x value of a point where a vertical line intersects a function represents the input for that output y value. If we can draw any horizontal line that intersects a graph more than once, then the graph does not represent a function because that y value has more than one input.
Step-by-step explanation:
The average score of students in the first group is 39, the second group is 32, and the third group is 43. If the numbers of students in the three groups are 24, 26, and 27, respectively, find the average score of all students.
The average score of all students, calculated by taking a weighted average based on the number of students in each group, is 38. The overall performance is slightly below the group averages.
The average score of students in the first, second, and third groups are 39, 32, and 43, respectively. There are 24 students in the first group, 26 students in the second group, and 27 students in the third group.
To find the average score of all students, we need to take a weighted average of the scores in each group, with the number of students in each group as the weights.
Here's how to do it: First, we calculate the total number of students:24 + 26 + 27 = 77. Then, we calculate the total score across all students: 39*24 + 32*26 + 43*27 = 936 + 832 + 1161 = 2929
Finally, we divide the total score by the total number of students to get the average score:2929/77 = 38. The average score of all students is 38.
This means that the overall performance of all the students is slightly below the average of the scores in each group.
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the significance level indicates the probability of rejecting the null hypothesis when group of answer choices the research hypothesis is false the research hypothesis is true the null hypothesis is true the null hypothesis is false
The significance level, denoted by alpha (α), is a predetermined threshold used in hypothesis testing to determine the probability of rejecting the null hypothesis when it is actually true.
How significance level of rejecting the null hypothesis is true?The steps involved in determining the significance level are as follows:
Set up the null and alternative hypotheses: In hypothesis testing, we have two hypotheses: the null hypothesis (H0) and the alternative hypothesis (H1). The null hypothesis is the default position that there is no significant difference or relationship between two variables, while the alternative hypothesis is the hypothesis that contradicts the null hypothesis. Choose a significance level: The significance level (α) is the predetermined threshold used to determine the probability of rejecting the null hypothesis. It is usually set at 0.05 or 0.01, which means that the researcher is willing to accept a 5% or 1% probability of rejecting the null hypothesis when it is actually true.Calculate the test statistic and p-value: After collecting data, we calculate a test statistic (such as t, F, or chi-square) and its corresponding p-value, which indicates the probability of obtaining a test statistic as extreme or more extreme than the observed one, assuming that the null hypothesis is true.Compare the p-value to the significance level: If the p-value is less than the significance level, we reject the null hypothesis and accept the alternative hypothesis. If the p-value is greater than or equal to the significance level, we fail to reject the null hypothesis.Therefore, the significance level indicates the probability of rejecting the null hypothesis when it is actually true. A smaller significance level (e.g., 0.01) means that the researcher is less willing to accept the risk of rejecting the null hypothesis when it is actually true, while a larger significance level (e.g., 0.05) means that the researcher is more willing to accept that risk.
In conclusion, the significance level is a critical parameter in hypothesis testing that helps researchers make decisions about the null hypothesis. By setting a predetermined threshold for the probability of rejecting the null hypothesis, researchers can control the risk of Type I error (rejecting the null hypothesis when it is actually true) in their statistical analyses.
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1.
A car travels 200 miles to Alabama at 55 miles per hour. It then goes
another 10 miles to Dothan. Write an equation and solve to find how many
hours it takes
Answer: 12.5 miles
Step-by-step explanation:
select the true statement about right triangles
Answer:
The hypotenuse is always directly opposite the right angle.
Step-by-step explanation:
Answer:
a. is the correct answer
Using the unit circle, what are the maximum and the minimum values of the sine function?
-1,1
0,1
-1, 1/2
0, 1/2
Answer:
It's A on e2020
Step-by-step explanation:
The maximum and minimum values of the sine function are 0 and 1.
Option B is the correct answer.
What are trigonometric identities?There are three commonly used trigonometric identities.
Sin x = 1/ cosec x
Cos x = 1/ sec x
Tan x = 1/ cot x or sin x / cos x
Cot x = cos x / sin x
We have,
Sine function.
Sin 90° = 1
Sin 0° = 0
The maximum and minimum value of the sin function is 1 and 0.
Thus,
The minimum and maximum values of the sin function are 0 and 1.
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Help with geometry pls?
The following are the area of the sectors:
6a). π square inches
6b). 24π square centimeters
7a). 9 square centimeters
7b). 16.7 square inches
How to evaluate for the area of the sectors.The area of a sector is calculated by multiplying the fraction of the angle for the sector divided by 360° and πr², where r is the radius.
For question 6:
a). (40/360) × π × 3 in × 3 in = π in²
b). (135/360) × π × 8 cm × 8 cm = 24π cm²
For question 7:
a). (90/360) × π × 6 cm × 6 cm = 9 cm²
b). (60/360) × π × 10 in × 10 in = 16.7π in²
Therefore, the following are the area of the sectors:
6a). π square inches
6b). 24π square centimeters
7a). 9 square centimeters
7b). 16.7 square inches
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Which was one of the goals for some advocates of the Progressive movement?
A: conservation
B: laissez-faire economy
C: welfare
D: establishment of a national bank
Answer:
d
Step-by-step explanation:
What percent of 80 is 48? Round your answer to the nearest hundredth if necessary.
Answer:
60%
Step-by-step explanation:
using the inverse trig functions, find the measure of angle X to the nearest degree
1. 64°
2. 16°
3. 90°
4. 74°
Answer:
Option 4.
Step-by-step explanation:
Tan(X)=perpendicular/base
Tan(X)=48/14
X=arctan(48/14)=74
5. Simplify: -(5 - 2x + y) (prerequisite
skill)
A -5- 2x + y B. -5 - 10x - 5y
(C.-5+ 2x - y D. -5 + 2x + y
Which characteristic is necessary to create a table that compares two functions?
The characteristic that is necessary to create a table that compares two functions is D. Choose the same values for each functions .
What is the usefulness of table?The Mathematical tables can be regarded as the lists of numbers which is used in showing the results of a calculation and these can have varying arguments.
It should be noted that when necessary to creating a table that compares two functions it is important to Choose the same values for each functions .
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Write the product using exponents.
In a circle with radius 4, what's the
area of a sector with a central
angle that measures 132 degrees?
Answer:
18.43 units
Step-by-step explanation:
132/360 cause 360 degrees in circle
π4^r=area of totoal
16π= area
16π*132/360=18.4306769011
What are the odds of rolling a 5 on a standard number cube? A. 1/5 B. 1/6 C. 5/6 D. 4/5
Answer: 1/6
Step-by-step explanation:
A cube for example a die has numbers 1, 2, 3, 4, 5 and 6 on its faces. The odds of rolling a 5 on a standard number cube is one out of 6 since there are possible six outcomes.
Therefore, the correct answer will be 1/6.
Answer:
1/6
Step-by-step explanation:
Which wave has the least amount of energy
Answer:
3
Step-by-step explanation:
Wavelengths that are longer and more drawn out have a lower frequency, so number 3 has the least amount of energy.
I attached a spectrum that helps give a visual.
Hope this helps and made it a bit easier to understand.
find the future value of $750 deposited each month at 3.25% for 15 years
Answer:
P=1538.461
Step-by-step explanation:
do it by the formula of
I=PRT, I=750 R=3.25% T=15
Can someone help me asap please.
If x varies directly as y and inversely as z, given that x=3, y=4 and z=8. Find the value of x when y
is 3 and z is 2
Answer:
Step-by-step explanation:
If x varies directly as y and inversely as z, then we can write:
x = k * (y / z)
where k is a constant of proportionality.
We can find the value of k by substituting the given values of x, y, and z:
3 = k * (4 / 8)
Simplifying the right-hand side:
3 = k * 0.5
k = 6
Now we can use this value of k to find x when y is 3 and z is 2:
x = 6 * (3 / 2)
x = 9
Therefore, when y is 3 and z is 2, x is equal to 9.
Andy bought cupcakes for his sister's birthday party. 75% of the 16 cupcakes had sprinkles on top. How many cupcakes had sprinkles?
SOMEONE PLEASE ANSWER BOTH QUESTIONS ASAP THANKSS
Arabic is an ex samplabusbbd
Naina!;;!?!!!?!! back; have a joke bc no bc b
A line passes through (2,4) and (-2,2)
a)Find the value of y if (6,y) lies on the
plane
b)Does this line pass through the point of
origin?
c)Does this tine intersect with the line
V=-X+32
d)lf your answer was yes in b, in which
quadrant did they intersect?
Answer:
a) The value of \(y\) is 6.
b) This line does not pass through the point of origin.
c) \(y = \frac{1}{2}\cdot x + 3\) intersects with \(y = -x+32\).
d) Both \(y = \frac{1}{2}\cdot x + 3\) and \(y = -x+32\) intersect in the first quadrant.
Step-by-step explanation:
a) By Analytical Geometry, we know that an equation of the line can be found by knowing the coordinates of two distinct points on the plane. The equation of the line is defined by this formula:
\(y = m\cdot x + b\) (1)
Where:
\(x\) - Independient variable.
\(y\) - Dependent variable.
\(m\) - Slope.
\(b\) - x-Intercept.
To determine the slope and x-intercept of the equation of the line, we have to solve the following system of linear equations:
\(m\cdot x_{1}+b = y_{1}\) (2)
\(m\cdot x_{2}+b = y_{2}\) (3)
If we know that \((x_{1}, y_{1} ) = (2,4)\) and \((x_{2}, y_{2}) = (-2, 2)\), then the solution of the system is:
\(m = \frac{1}{2}\), \(b = 3\)
Then, the equation of the line is \(y = \frac{1}{2}\cdot x + 3\). If we know that \(x = 6\), then the value of \(y\) is:
\(y = 6\)
The value of \(y\) is 6.
b) If this line passes through the point of origin, then the value of \(y\) must be zero for \(x = 0\). If we know that \(y = \frac{1}{2}\cdot x + 3\) and \(x = 0\), then the value of \(y\) is:
\(y = 3\)
The line does not pass through the point of origin since x-intercept is not zero.
c) A system of two linear equations always has an unique solution if and only if slopes and x-intercepts are different to each other. This condition is satisfied by \(y = -x+32\), so we conclude that both lines intersect each other.
d) (Note: Question was incorrectly written. Correct form is: If your answer was yes in c, in which quadrant did they intersect?)
First, we solve the following system of linear equations:
\(\frac{1}{2}\cdot x -y = -3\) (4)
\(-x-y = -32\) (5)
The solution of this system is \((x,y) = (19.333, 12,667)\), which means that both lines intersects each other in the first quadrant.
Which of the following could be an example of a function with a domain
(-∞0,00) and a range (-∞,4)? Check all that apply.
A. V = -(0.25)* - 4
-
□ B. V = − (0.25)*+4
c. V = (3)* +4
□ D. V = − (3)* — 4
-
The correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are given below.Option A. V = -(0.25)x - 4 Option B. V = − (0.25)x+4
A function can be defined as a special relation where each input has exactly one output. The set of values that a function takes as input is known as the domain of the function. The set of all output values that are obtained by evaluating a function is known as the range of the function.
From the given options, only option A and option B are the functions that satisfy the condition.Both of the options are linear equations and graph of linear equation is always a straight line. By solving both of the given options, we will get the range as (-∞, 4) and domain as (-∞, 0).Hence, the correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are option A and option B.
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16. Which is greater, 4^-2 or
2^-4? How do you know?
Answer: if this is a fraction 4\2 is greater
Step-by-step explanation: First you need same denominaters the lest coomon is four 2 over 4 is fine 4 over 2 two times 2 is 4 and 4 times 4 is 16 with will leave you with 16/4 or 2/4 simplfied 4/2 is greater
Answer:
The expressions are equal.
Step-by-step explanation:
Notice that \(a^{-b}=\frac{1}{a^b}\) for all (real) \(a,b\). So \(4^{-2}=\frac{1}{4^2} = \frac{1}{16}\) and \(2^{-4} = \frac{1}{2^4} = \frac{1}{16}\). Therefore, the expressions are equal.
Brianne needs to buy a plane ticket and new backpack for her European trip. She got tired of living with her twin sister and needed a break so she's going to just go. She only had $40 left over from Xmas and Birthday money and needs a total of $1500 for the airfare, $150 for the backpack she wants, and about another $1000 for spending money. She leaves in 5 months! She realized that she needs a job for this so she got a job at Porto's making empanadas as well as doing extra chores around the house for $50 a week. She makes $1200 a month now. How much should she save each month? If she wanted to leave in 3 months, how much would she have to save?
To calculate how much Brianne needs to save each month, we'll subtract her current savings and her monthly income from her total expenses.
1. Total expenses:
- Airfare: $1500
- Backpack: $150
- Spending money: $1000
Total expenses: $1500 + $150 + $1000 = $2650
2. Current savings: $40
3. Monthly income:
- Job at Porto's: $50/week * 4 weeks = $200/month
- Extra chores: $1200/month
Total monthly income: $200 + $1200 = $1400
4. Amount needed to save each month:
Total expenses - Current savings - Monthly income = $2650 - $40 - $1400 = $1210
Therefore, Brianne needs to save $1210 each month to reach her total expenses for the European trip leaving in 5 months.
If she wanted to leave in 3 months instead, she would have less time to save. In that case, the calculation would be as follows:
1. Total expenses: $2650
2. Current savings: $40
3. Monthly income: $1400
4. Number of months: 3
5. Amount needed to save each month:
(Total expenses - Current savings) / Number of months
= ($2650 - $40) / 3
≈ $870 / 3
≈ $290
Therefore, if Brianne wanted to leave in 3 months, she would need to save approximately $290 each month to reach her total expenses for the European trip.
The roots of the quadratic function are -2 and -6.Which of the following are the two factors of the quadratic expression?X + 2X-2X - 6X + 6X + 8X - 8
roots = {-2, -6}
Factors: (x + 6) and (x + 2)