Answer:
\( \frac{13y ^{2} - 59y - 90 }{(y + 10)(y - 10)} \)
How do you solve this??
21 a(little 6) b(little 5)
————————————
7 a(little 3) b
\((21a^6b^5) / (7a^3b)\) simplifies to \(3a^3b^4.\)
To solve this problemWe can use the rules of exponents and simplify the terms with the same base.
Dividing the coefficients: 21 / 7 = 3.
For the variables, you subtract the exponents: \(a^6 / a^3 = a^(^6^-^3^) = a^3.\)
Similarly,\(b^5 / b = b^(5-1) = b^4\).
Putting it all together, the simplified expression is:
\(3a^3b^4.\)
Therefore, \((21a^6b^5) / (7a^3b)\) simplifies to \(3a^3b^4.\)
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A dance teacher divides 5 dance classes into 6 equal groups. Each dance class has 18 students. How many dance students are in each group
First, multiply \(18*5 = 90\)
Then, divide \(90 / 6 = 15\)
Therefore, each group has 15 students.
this research seeks to identify, describe and produce an analysis of the factors that influence the learning choices of first- year undergraduate students who intend to go on to postgraduate study when they graduate, and develop associated theory.
The research explores the various factors that may influence the learning choices of first-year undergraduates, such as the family and educational background of the student, their socioeconomic status and the availability of resources, among others.
What is factor?Factor is a mathematical quantity which is multiplied with another quantity to give a product. Factors can also be defined as the numbers that divide a given number exactly. Factors are used in everyday life to calculate many different types of problems, such as compound interest, speed, distance and time, and more. Factors are also used in statistics and probability to determine the likelihood of certain events occurring.
The paper will also examine the various types of postgraduate courses that are available to undergraduates, including those offered by universities and other institutions, such as professional courses or distance learning programmes.
The research adopts a qualitative approach, and will use semi-structured interviews with first-year undergraduates to gain an understanding of their learning choices, and the factors that influence them. Interviews will be conducted with students in different disciplines, in order to gain an insight into how the different disciplines shape students' learning preferences. The research will also use questionnaires to obtain data on the socioeconomic background, family background and educational background of students.
In addition, the research will use documentary analysis of university prospectuses and websites, and information from other sources, such as employers and professional bodies, to gain an understanding of the various postgraduate courses that are available to undergraduates. This data will be used to compare and contrast the learning choices of undergraduates from different disciplines and economic backgrounds.
Finally, the research will use an interpretive approach to analyse the data collected and develop a theory of the factors that influence the learning choices of first-year undergraduates. The theory will be used to inform the design of initiatives to help undergraduates make informed decisions about their learning choices.
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In the elimination method would you add or subtract the following system? (Elimi
2x+5y=-2
-2x-7y=-6
(1 Point)
Add
Subtract
(Worth 10 points)
Answer:
You will add!
Step-by-step explanation:
Words words words
Diego drank x ounces of juice. Lin drank 1/8 less than that.
Answer:
Step-by-step explanation:
What is the equation of the line that isPerpendicular to y=1/5×+4 and thar passes through (5,-4)?
Answer:
y = -5x + 21
Step-by-step explanation:
Step 1: Find the slope
Take the negative reciprocal of the original equation
y = -5x + b
Step 2: Find b using given coordinate
-4 = -5(5) + b
-4 = -25 + b
b = 21
Step 3: Write equation
y = -5x + 21
And we have your equation!
Answer:
Equation of a line is y = mx + c
m = slope
c = intercept on y axis
y=1/5×+4
Comparing with the above equation
Slope = 1/5
Since the lines are perpendicular to each other the slope of the line we are to find is the negative inverse of the original equation.
Slope = -5
Equation of the line using point
(5 , -4)
y + 4 = -5( x - 5)
y + 4 = -5x + 25
y = -5x + 21
Hope this helps
Graph the solution to the inequality on the number line. w−0.9>−2.1 First select the correct ray. Then select the location of the endpoint to plot the inequality on the number line.
The solution to the inequality \(w - 0.9 >-2.1\) is \(w >-1.2\)
InequalityInequalities are used to represent expressions of unequal values
The inequality is given as:
\(w - 0.9 >-2.1\)
Add 0.9 to both sides of the inequality
\(w - 0.9+ 0.9 >-2.1 + 0.9\)
Simplify the inequality
\(w >-1.2\)
The above inequality means that:
The arrow on the number line points to the rightThe arrow begins at point -1.2 with an open circle or dotted linesSee attachment for the inequality that represents \(w >-1.2\)
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7 inches high, 4 inches long, and 4 inches wide what is the area
A = 144 square inches
Step-by-step explanation:
surface area of rectangular prism :
A = 2(hℓ + ℓw + hw)
A = 2(7 · 4 + 4 · 4 + 7 · 4)
A = 2(28 + 16 + 28)
A = 2(72)
A = 144 square inches
Solve 2x + 5y = −13
3x − 4y = −8
Answer: 100
Step-by-step explanation: 5+5+10+30-50+100
Let S be the part of the plane 2x + 1y + z = 2 which lies in the first octant, oriented upward. Find the flux of the vector field F = 1i + 1j + 3k across the surface S.
The vector field F = 1i + 1j + 3k has a flux of 2 across the surface S. We use Green's Theorem to determine the vector-flux field.
Explain the Green's Theorem?The simple formula for Green's theorem is the link between the total amount of microscopic circulation inside of curve C and the macroscopic circulation revolving around it.Green's Theorem in flux form for the specified vector-field:φ = ∫ F.n ds
φ = ∫∫ F. divG.dA
In which, G is equivalent to a part of given plane = 2x + 1y + z = 2.
And, F = 1i + 1j + 2k
Thus,
div G = div(2x + 1y + z = 2) = 2i + 4j + k
Flux = ∫(1i + 1j + 3k) (2x + 1y + z).dA
φ = ∫ (2 + 4 + 2).dA
φ = 8∫dA
A = 1/2 XY (on this given x-y plane)
2x+4y =2
For, x = 0, y = 1/2
y = 0, x = 1
1/2 (1*1/2) = 1/4
Thus, flux = 8*1/4 = 2
φ = 2.
There are several uses for Green's theorem. Solving two-dimensional flow integrals, whose assert that its sum of fluid outflows from just a volume equals the sum of outflows around an enclosed area, is one way to accomplish this.
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The complete question is-
Let S be the part of the plane 2x + 1y + z = 2 which lies in the first octant, oriented upward. Find the flux of the vector field F = 1i + 1j + 3k across the surface S. F = 1i + 1j + 3k across the surface s2x + 1y + z = 2 which lies in the first octant, oriented upward. Find the flux of the vector field.
Finding the area and perimeter
Answer:
Lion area: 60
Lion Perimeter: 34
Tiger Area: 60
Tiger perimeter: 64
Step-by-step explanation:
What is this answer? Please help.
9514 1404 393
Answer:
111.46 units
Step-by-step explanation:
The right triangle has side lengths that are 1/√2 times the hypotenuse length, so each is (18√2)/(√2) = 18 units. The top is this length shorter than the bottom, so the total of all side lengths (CW from left) is ...
18 + (43 -18) +18√2 +43 = 86 +18√2 ≈ 111.46 units
Jessica's teacher asked her to divide 5/8 of the box of crayons
among 10 classmates. How much of a box of crayons did
each one receive?
Answer:
Each classmate received 1/16
Step-by-step explanation:
5/8= 0.625
0.625 ÷ 10 = 0.0625
= 1/16
1. Solve.
6x - 9 = 33
plz answer
\(\tt{Hey~There!\)
\(\tt{6x-9=33\)
\(\tt{Add~9~to~both~sides:\)
\(\tt{6x-9+9=33+9\)
\(\tt{6x=42\)
\(\tt{Divide~both~sides~by~6:\)
\(\tt{\frac{6x}{6}=\frac{42}{6}\)
\(\tt{Simplify~42/6:\)
\(\tt{\frac{42}{6}=7\)
\(\boxed{\tt{x=7}}\)
\(\tt{Hope~this~helps!\)
\(\boxed{\tt{-TestedHyperr}}\)
Find the length of the third side. If necessary, round to the nearest tenth.
The length of the third side is 13 units
How to determine the lengthIt is important to note that from the Pythagorean theorem, we have that the square of the longest side, that is, the hypotenuse is equivalent to the square of the other two sides.
From the information given, we have that;
x² = 12² + 5²
Now, find the square values of the numbers, we have;
x² = 144 + 25
Add the values
x² = 169
Take the square root of both the sides, we have;
x= √169
Find the square root of the value
x =1 3 units
Hence, the value is 13 units
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About 3% of the population has a particular genetic mutation. 600 people are randomly selected.
Find the mean for the number of people with the genetic mutation in such groups of 600.
The mean for the number of people with the genetic mutation in such groups of 600 is 18.
Given that,
About 3% of the population has a particular genetic mutation.
This means that for any group of people, 3% of the people has a particular genetic mutation.
This is a binomial distribution.
Probability that people having genetic mutation = 3% = 0.03
Random sample size = 600
Mean for a binomial distribution can be calculated as,
Mean = n × p
= 600 × 0.03
= 18
Hence the mean number of people having genetic mutation is 18.
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Exam Guidelines
Exam Instructions
Question 15 of 20:
Select the best answer for the question.
15. Simplify: (3 x 22) = 6 + [28 – (4)?1
A. 55
B. 23
ООО
C. 32
D. 46
State the domain and range for the following relation. Then determine whether the relation represents a function.{(8,-7)}, (9,7), (10,-7),(11,-7)}
Domain: 8, 9, 10, 11.Range: -7, 7 This relation does not represent a function because the same x-value (8, 10, 11) is associated with more than one y-value (-7, 7).
Domain: 8, 9, 10, 11
Range: -7, 7
A function is a relation between a set of inputs and a set of outputs such that each input is associated with exactly one output. This particular relation fails to meet this condition because the domain value 8 is associated with two different range values (-7 and 7). In other words, the same input (8) is associated with two different outputs, which means the relation does not represent a function. The domain of the relation is 8, 9, 10, 11 and the range is -7 and 7. Therefore, this relation does not represent a function because it violates the condition that each input must have one and only one associated output.
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Evaluate 19C1 PLEASE HELP
Answer:
\({19}C_1=19\)
Step-by-step explanation:
We need to find the value of \({19}C_1\).
C stands for combination.
The formula of combination is as follows :
\(nC_r=\dfrac{n!}{r!(n-r)!}\)
Here,
n = 19 and r = 1
So,
\(nC_r=\dfrac{19!}{1!(19-1)!}\\\\nC_r=\dfrac{19!}{1!\times 18!}\\\\nC_r=\dfrac{19\times 18!}{1!\times 18!}\\\\nC_r=19\)
So, the value of \({19}C_1\) is 19.
Answer:
Your answer will be 19C1 =19
Part D. Given the sample selected for this study, what type of bias do you think might apply? How would you suggest selecting a sample that better avoids sample bias? (4 points)
using techniques such as anonymity or confidentiality to encourage honest and open responses.
There are several potential sources of bias that could be present in the sample selected for this study. One possible source of bias is selection bias, which occurs when the sample is not representative of the population from which it was drawn. This can happen if certain groups of people are more likely to be included in the sample than others, or if some individuals are more likely to participate in the study than others.
Another potential source of bias is response bias, which occurs when participants provide inaccurate or incomplete information in their responses. This can happen if participants feel uncomfortable sharing certain information, or if they have a particular agenda or bias that influences their responses.
To avoid sample bias, researchers should aim to select a sample that is as representative as possible of the population they are interested in studying. One way to do this is to use random sampling techniques, such as simple random sampling or stratified random sampling, to ensure that every member of the population has an equal chance of being included in the sample. Additionally, researchers can take steps to minimize response bias by using clear and unbiased survey questions, providing a comfortable and non-judgmental environment for participants to provide their responses.
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How many degrees is the measurement of the missing angle? (Only numeric answer, no words or symbols at all)
Answer:
The answer is 135
Step-by-step explanation:
all angles in a triangle equal to 180.
so, 25+22= 45
then, 180-45= 135
the missing angles measure is 135 degrees
hope this helps!
Anything helps :) thank you
Answer:
the first one is (23)
number 7 is ( 34.069)
Step-by-step explanation:
NEED HELP NOW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
a 90% confidence interval is found to be (72,78). what is the margin of error
The margin of error for the 90% confidence interval is 3.
To find the margin of error for a 90% confidence interval, we can use the formula:
Margin of Error = (Upper Limit - Lower Limit) / 2
Given the confidence interval (72, 78), where 72 is the lower limit and 78 is the upper limit, we can substitute these values into the formula to calculate the margin of error.
Margin of Error = (78 - 72) / 2
Margin of Error = 6 / 2
Margin of Error = 3
Consequently, the 90% confidence interval's margin of error is 3.
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I will mark Brainy just help!!!!
Answer:
D
Step-by-step explanation:
Which point would NOT be a solution to the system of linear inequalities shown below?
It's asking would not be a solution soo
(-10, -9) as you can see
You're welcome thank me later
Select all solutions that are equivalent to the following expression 3^-5 x 3^2
Answer:
The pink one
Step-by-step explanation:
3^-5 x 3^2 = 3^(-5+2) = 3^-3
Determine the value of x please.
Figure and Answers choice below.
Answer:
B
Step-by-step explanation:
We can either use sine or cosine, I choose cosine but sine works the same. cos(angle) = adj/hyp. adj = cos(angle) x hyp. adj = cos(30)8, cos(30) = √3/2. √3/2 x 8 = 4√3
Michelle Payne deposited $4,000 in a savings account paying 6.25% simple interest. How long (in years) will it take for her investment to amount to $6,000?
years
The number of years it will take the investment to amount to $6,000 is 8 years.
What is the number of years?Simple interest is when the return on an investment grows at a linear rate. This means that the investment would grow at a constant value with the passage of time.
Time = Interest earned / (principal x interest rate)
Interest rate = value of the investment - amount deposited
$6,000 = $4,000 = $2,000
Time = $2,000 / ($4,000 x 0.0625)
Time = 8 years
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NO LINKS!!
36. Know the difference between exponential, quadratic and linear equations.
Linear Equation: y = mx + b
They tend to have same common differences. They increase linearly. They always have a straight line while making a graph. For every x-value there is only one y-value.
Quadratic Equation: y = ax² + bx + c
They have constant second differences. For every y value there are two x values. They always make a smile [ ∪ ] when the coefficient of x² is positive and sad [ ∩ ] curve on the graph when coefficient of x² is negative.
Exponential Equation: y = a(b)ˣ
Here the values of y changes more rapidly than the value of x. The values shifts too quickly in a exponential graph. For every y value there is only one x value. Has constant ratio.
Exponential equation
Exponential equations have a rate of change and a exponent with respect to the rate of change
The general form is
y=ab^xwhere c is any real no .
Quadratic equation
The exponential equations which have degree as 2 are called quadratic equationsThe general form is
y=Ax²+Bx+CLinear equation
The equation whose graph is a straight line is called linear equation
The general form is
y=mx+b