what is the value of the expression when y = 2 2y/4+y + 3(y+2)/y
Answers
Answer:
9
Step-by-step explanation:
Answer: 6
Step-by-step explanation:
12/2 is 6 the first part turns into 0 and the second part turns into 12/6
Related Questions
help pls now points are 30
Answers
Answer:
4 AU
Step-by-step explanation:
20.8 ÷ 5.2 = 4
5.2 increased by 4.
Scale means to get bigger or smaller evenly.
-kiniwih426
Everything in the store was at 30% discount . A dress was originally for 65$ . What was the discount price ?
Answers
Answer: $45.50
Step-by-step explanation:
30% discount means 30% off the original price
1. find 30% of 65$
=.3*65
=19.5
2. subtract that from 65$
=65-19.5
=45.5
the discount price was $45.50
41 is what percent of 120
Answers
Answer: Approximately 34.17%.
Step-by-step explanation: Let's divide 41 by 120. Doing so, we get 0.3466666 looping forever. We can simplify that to .3417, and then turn that into a percentage giving us 34.17%
A plastic page designed to hold trading cards will hold up to 7 cards. How many pages will be needed to store 513 cards? Give an appropriate counting number answer to the question. (Find the least counting number that will work.)
The number of pages that would be needed to store 513 cards is (Simplify your answer)
Answers
Answer: 73 Pages
Step-by-step explanation: divide the cards by max cards in one plastic page aka
513 divided by 7 = 73
and a decimal but you cant have a decimal of an item ( if that makes sense)
Write the expression “3 times the quantity n plus 6" as an algebraic expression.
Answers
Answer:
3n+6
Step-by-step explanation:
"3 times the quantity n" = 3 * n = 3n
3n+6
y = 1/3x -1
x-intercept (3,0)
How did they get this answer? Somebody please help
Answers
Here's how to do it:
Substitute y with zero:
0 = (1/3)x - 1
Add 1 to both sides:
1 = (1/3)x
Multiply both sides by 3:
3 = x
So the x-intercept of the line y = (1/3)x - 1 is (3,0). This means that the line crosses the x-axis at the point (3,0).
In conclusion, the x-intercept of the line y = (1/3)x - 1 is (3,0), which means that the line crosses the x-axis at the point (3,0).
Answer:
Step-by-step explanation:
x-intercept is where the line cuts the x-axis. That is, when y=0.
Substitute y=0 and we get:
\(0=\frac{1}{3} x-1\)
\(1=\frac{1}{3} x\)
\(x=3\)
So x-intercept is the point (3,0).
Find the volume of a cylinder with a radius of 5cm and a height of 3cm
Answers
Answer: 235.5
Step-by-step explanation:
CYLINDER VOLUME FORMULA
V = pi * r^2 * h
V = 3.14 * 5^2 * 3
V = 3.14 * 25 * 3
V = 3.14 * 75
V = 235.5
Answer:
235.62
Step-by-step explanation:
formula: V=π\(r^{2}\)h=π·\(5^{2}\)·3
Consider the line 3x+2y=-1.
Find the equation of the line that is perpendicular to this line and passes through the point (5, 3).
Find the equation of the line that is parallel to this line and passes through the point (5, 3).
Note that the ALEKS graphing calculator may be helpful in checking your answer.
Equation of perpendicular line:
Equation of parallel line:
0
Answers
The given line is in the form Ax + By = C, where A = 3, B = 2, and C = -1. To find the slope of this line, we can rearrange the equation in slope-intercept form (y = mx + b), where m is the slope:
3x + 2y = -1
2y = -3x - 1
y = (-3/2)x - 1/2
The slope of the given line is -3/2. Since a line perpendicular to this line will have a negative reciprocal slope, we can find the perpendicular slope by taking the negative reciprocal of -3/2:
Perpendicular slope = -1 / (-3/2) = 2/3
Now we have the slope of the perpendicular line, and we can use the point-slope form of a line (y - y₁ = m(x - x₁)) to find its equation. Plugging in the values (5, 3) for (x₁, y₁) and 2/3 for m:
y - 3 = (2/3)(x - 5)
Expanding and simplifying:
3y - 9 = 2x - 10
2x - 3y = 1
Therefore, the equation of the line that is perpendicular to 3x + 2y = -1 and passes through the point (5, 3) is 2x - 3y = 1.
To find the equation of a line parallel to the given line and passing through the point (5, 3), we can use the same method. Since parallel lines have the same slope, the slope of the parallel line will also be -3/2.
Using the point-slope form with (5, 3) and -3/2:
y - 3 = (-3/2)(x - 5)
Expanding and simplifying:
2y - 6 = -3x + 15
3x + 2y = 21
Therefore, the equation of the line that is parallel to 3x + 2y = -1 and passes through the point (5, 3) is 3x + 2y = 21.
simplify (3^6 ÷ 3^8) × 3^-5
FAST PLSSSSS
Answers
Answer:
0.00045724737
Answer:
1/2187
Step-by-step explanation:
3^6 = 729
3^8=6561
3^-5=1/3^5 = 1/243
(729 ÷ 6561) * 1/243
1/9*1/243
= 1/2187
Hopefully this is right. If it's wrong please correct me!
I need help I haven’t been here a week and I don’t understand my homework
Solve either
Answers
Answer: you need to add
Step-by-step explanation: I would ask your teacher to help you understand the lesson.
Calculate the distance between the points F=-1,-4) and c=(3,-9) and in the coordinate plane. Give an exact answer (not a decimal approximation).
Answers
• FE = 5
• EC = 4
• FE^2 + EC^2 = FC^2
• (25) + (16) = 41 = FC^2
• FC = square root(41)
Arianna is packing scented candles and candle holders into gift boxes. She has 84 candles and 48 holders, and each box must contain both items. She puts the same number of candles in each box, and the same number of holders in each box. What is the maximum number of gift boxes Arianna can pack, and how many scented candles and candle holders will each box have?
A.
4 boxes; 21 scented candles and 12 candle holders
B.
6 boxes; 14 scented candles and 8 candle holders
C.
12 boxes; 7 scented candles and 4 candle holders
D.
24 boxes; 3 scented candles and 2 candle holders
Answers
The answer is A
Hope this helps!
What is the present value of R13 000 p.a. invested at the beginning of each year for 8years at 10%p.a. compound interest? (NB Use the compound interest tables provided or work to three decimal places only.)
Answers
Given statement solution is :- The present value of R13,000 per year invested for 8 years at 10% compound interest is approximately R69,776.60.
To calculate the present value of an investment with compound interest, we can use the formula for the present value of an annuity:
PV = A *\((1 - (1 + r)^(-n)) / r\)
Where:
PV = Present value
A = Annual payment or cash flow
r = Interest rate per period
n = Number of periods
In this case, the annual payment (A) is R13,000, the interest rate (r) is 10% per year, and the investment is made for 8 years (n).
Using the formula and substituting the given values, we can calculate the present value:
PV = \(13000 * (1 - (1 + 0.10)^(-8)) / 0.10\)
Calculating this expression:
PV = \(13000 * (1 - 1.10^(-8)) / 0.10\)
= 13000 * (1 - 0.46318) / 0.10
= 13000 * 0.53682 / 0.10
= 6977.66 / 0.10
= 69776.6
Therefore, the present value of R13,000 per year invested for 8 years at 10% compound interest is approximately R69,776.60.
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positive continous random variable with disbution and density we define in class the expected value to be prove, that given this definition:
Answers
Continuous random variable is a random variable that can take on a continuum of worth. In alternative words, a random variable is said to be continuous if it supposes a value that falls between a particular interval.
A continuous random variable can be described as a random variable that can take on an infinite number of possible values. Due to this, the probability that a continuous random variable will take on a fixed value is 0.
The probability density function of a continuous random variable can be explained as a function that gives the probability that the value of the random variable will drop between a range of values. Let X be the continuous random variable, then the formula for the pdf, f(x).
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what the step answer for this question
Answers
Answer:
hey guys
Step-by-step explanation:
I am indian and I want to make Canadian friends
who will be my friend
Hi, can you help me answer this question, please, thank you:)
Answers
We have a binomial process, with n=13 (the number of trials) and p=0.52 (the probability of success).
We have to calculate the probability of these events:
a) Exactly 3 successes.
The probability of k successes in a binomial distribution can be expressed as:
\(P(x=k)=\dbinom{n}{k}p^k(1-p)^{n-k}\)Then, replacing with the known values, we can calculate P(x=3) as:
\(\begin{gathered} P(x=3)=\dbinom{13}{3}\cdot0.52^3\cdot0.48^{10}_{} \\ P(x=3)\approx\frac{13!}{3!\cdot10!}\cdot0.140608\cdot0.000649 \\ P(x=3)\approx286\cdot0.140608\cdot0.000649 \\ P(x=3)\approx0.0261 \end{gathered}\)b) At most 11 successes
In this case, we have to calculate P(x<=11) = P(x<12), which means the probability of having less than 12 successes.
This can also be written as:
\(P(x<12)=1-\lbrack P(x=13)+P(x=12)\rbrack\)This means that the probability of having less than 12 successes is equal to one less the probability of having 12 or 13 successes.
The probability of 12 successes can be calculated as:
\(P(x=12)=\dbinom{13}{12}\cdot0.52^{12}\cdot0.48^1=13\cdot0.0004\cdot0.48=0.0025\)and the probability of 13 successes is:
\(P(x=13)=\dbinom{13}{13}\cdot0.52^{13}\cdot0.48^0=1\cdot0.0002\cdot1=0.0002\)Then, we can replace them in the previous equation and get:
\(\begin{gathered} P(x<12)=1-\lbrack P(x=13)+P(x=12)\rbrack \\ P(x<12)=1-(0.0025+0.0002) \\ P(x<12)=1-0.0027 \\ P(x\le11)=P(x<12)=0.9973 \end{gathered}\)c) At least 2 successes
In this case, we have to calculate P(x>=2).
We then, as we did in the previous point, write this as:
\(\begin{gathered} P(x\ge2)=1-P(x<2) \\ P(x\ge2)=1-\lbrack P(x=0)+P(x=1)\rbrack \end{gathered}\)This means that having at least two successes only excludes the probability of having one success, P(x=1), or no success, P(x=0).
We then can calculate P(x=1) and P(x=0) as:
\(P(x=0)=\dbinom{13}{0}\cdot0.52^0\cdot0.48^{13}=1\cdot1\cdot0.00007=0.00007\)\(P(x=1)=\dbinom{13}{1}\cdot0.52^1\cdot0.48^{12}=13\cdot0.52\cdot0.00015=0.00101\)Replacing in the previous equation, we get:
\(\begin{gathered} P(x\ge2)=1-\lbrack P(x=0)+P(x=1)\rbrack \\ P(x\ge2)=1-\lbrack0.00007+0.00101\rbrack \\ P(x\ge2)=1-0.00108 \\ P(x\ge2)=0.99892 \\ P(x\ge2)=0.9989 \end{gathered}\)Answer:
a) P(x=3) = 0.0261
b) P(x<=11) = 0.9973
c) P(x>=2) = 0.9989
What is the ratio of the calories Robyn
burned on Wednesday le the celories she
burned on Monday?
Answers
Question isn't complete but we make assumptions in order to complete the question and explain
Answer and explanation:
If we are given a table on calories burned by Robyn on weekdays from Monday to Friday and on this table Robyn burnt 500 calories on Monday and burnt 400 calories on Wednesday, then we are required to determine the ratio of calories burnt on Wednesday to calories burnt on Monday:
Calories burnt on Wednesday = 400
Calories burnt on Monday =500
Ratio of calories burnt on Wednesday to calories burnt on Monday =400/500=4/5
Ratio =4:5
Maggie spent $16 at the movies. She
purchased one ticket for $5.50 and packs of
candy for $1.75 each. How many packs of
candy did she buy
Answers
Answer: She bought 6 packs of candy
Step-by-step explanation:
she spent $16
$16-$5.50=$10.5
$10.5/$1.75=6
6 x $1.75=$10.5
Which statement is true about the graphed function?
Answers
a) What is the area of the top face of this
cuboid?
b) What is the area of the bottom face of
this cuboid?
4 cm
9 cm
7 cm
Answers
The area of both the top face and the bottom face of the cuboid is 63 square centimeters (cm²).
To find the area of each face of the cuboid, we'll use the formulas for finding the area of a rectangle (which is the shape of each face of the cuboid).
Given dimensions:
Length (L) = 9 cm
Width (W) = 7 cm
Height (H) = 4 cm
a) Area of the top face of the cuboid:
The top face is a rectangle with dimensions 9 cm (length) and 7 cm (width).
Area = Length × Width
Area = 9 cm × 7 cm
Area = 63 square centimeters (cm²)
b) Area of the bottom face of the cuboid:
The bottom face is also a rectangle with dimensions 9 cm (length) and 7 cm (width).
Area = Length × Width
Area = 9 cm × 7 cm
Area = 63 square centimeters (cm²)
Therefore, the area of both the top face and the bottom face of the cuboid is 63 square centimeters (cm²).
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A 10-foot by 12-foot wall has two windows that measure 3 feet by 5 feet each.
5 feet
5 feet
10 feet
3 feet
3 feet
12 feet
If the windows are not to be painted, what percent of the wall will be painted?
Answers
12 ft maybe? i dunno im sorry if this is wrong
Evaluate the expression 8-5xy^3 for x=3 and y = -2
Answers
Given info:-
Evaluate the expression 8-5xy^3 for x=3 and y = -2.
8 - 5xy^3
⇛8 - 5(3)(-2)^3
⇛8 - 15(-2*-2*-2)
⇛8 - 15(-8)
⇛8 - (-120)
⇛8 + 120
⇛128 Ans.
Type < or > to make this statement true -a___-b
Answers
The comparisons that are true are 11. -5 < 0 12. 9 > -8 14. 55 > -75 15. -32 < -24 16. 89 > 73 17. -58 < -51 19. 17 < 23 20. 18 > -36 and that is not true are 13. -7 = -7 (not true) 18. -32 > 4 (not true)
To make each statement true, write < or >. We need to compare two values for each statement to determine whether it is true or false.
To indicate that the first value is less than the second value, write <.
Alternatively, to indicate that the first value is greater than the second value, write >.
Below are the comparisons: 11. -5 < 0 12. 9 > -8 13. -7 > -7 14. 55 > -75 15. -32 < -24 16. 89 > 73 17. -58 < -51 18. -32 > 4 19. 17 > 23 20. 18 > -36
To determine the direction of inequality, we need to compare the values.
We used inequality signs such as > (greater than) or < (less than) to indicate which value is larger or smaller than the other.
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The correct question would be as
Write > or < to make each statement true.
11. -5 0
12. 9 -8
13. -7 7
14. 55 -75
15. -32 -24
16. 89 73
17. -58 -51
18. -32 4
19. 17 23
20. 18 -36
Which of the following functions represents the values in the table below?
x 0 2 4 6
f(x) 2 10 66 218
a f(x) = -3x - 2x 2
b f(x) =x^3/2
c f(x) = 2 + x 3
d f(x) = 3x - 2
Answers
Answer:
f(x) = 2 + x^3
Step-by-step explanation:
The function f(x)=2+x^3 satisfies all the values given in the table.
What is a function?
Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
For the third option C we will check all the values of x in the function.
\(f(x)=2+x^3\\\\\\f(0)=2+0^3=2\\\\\\f(2)=2+2^3=2+8=10\\\\\\f(4)=2+4^3=2+64=66\\\\\\f(6)=2+6^3=2+216=218\)
Hence the function f(x)=2+x^3 satisfies all the values given in the table.
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If the area of a square inscribed in a circle is
25, what is the area of the circle?
Answers
The area of a square inscribed in a circle is 25, then the area of the circle is 25π/2 or approximately 39.27 square units.
To solve this problem, we can use the relationship between the area of a square inscribed in a circle and the area of the circle itself.
When a square is inscribed in a circle, the diagonal of the square is equal to the diameter of the circle. Let's assume that the side length of the square is 's' and the radius of the circle is 'r'.
We are given that the area of the square is 25, so we can find the side length of the square:
Area of square = \(s^2 = 25\)
Taking the square root of both sides, we get:
s = √25 = 5
Since the diagonal of the square is equal to the diameter of the circle, we can find the diameter of the circle:
Diagonal = Diameter = s√2 = 5√2
The radius of the circle is half the diameter, so:
Radius = 5√2 / 2 = (5√2)/2
Now, we can calculate the area of the circle using the formula:
Area of circle = \(\pi r^2\)
Substituting the value of the radius, we get:
Area of circle = π((5√2)/\(2)^2\) = π(25/2) = 25π/2
Therefore, the area of the circle is 25π/2 or approximately 39.27 square units.
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Does the expression x^3-1 divided by x^2 -1 simplify to x?
Answers
No, the expression (x^3 - 1) / (x^2 - 1) does not simplify to x.
To simplify the expression, let's first factorize both the numerator and denominator.
The numerator can be factorized using the difference of cubes formula: a^3 - b^3 = (a - b)(a^2 + ab + b^2). So, we have (x^3 - 1) = (x - 1)(x^2 + x + 1).
The denominator is a difference of squares: a^2 - b^2 = (a - b)(a + b). Therefore, (x^2 - 1) = (x - 1)(x + 1).
Now, we can simplify the expression by canceling out the common factors in the numerator and denominator:
[(x - 1)(x^2 + x + 1)] / [(x - 1)(x + 1)]
The (x - 1) terms cancel out, leaving us with:
x^2 + x + 1 / (x + 1)
So, the simplified form of the expression is (x^2 + x + 1) / (x + 1), which is not equal to x.
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Kelly wants to buy a pair of pants that regularly cost $29.99, but they are on sale for 20% off. How much would Kelly pay for the pants after the discount, and
after the sales tax of 6%
Answers
Answer:
Black Friday sales
Step-by-step explanation:
The flight of a golf ball can be represented by a parabola with a vertex (75,55). During the flight, the ball was 100 yards away from the tee and had a height of 49.375 feet. What is the equation in vertex for a parabola that represents the ball's vertical distance, y, and horizontal distance from the tee, x?
Answers
The equation in vertex for the parabola for y in terms of x is y = -0.009(x - 75)² + 55
How to determine the equation in vertex for a parabola?From the question, we have the following parameters that can be used in our computation:
Vertex = (75, 55)
Point = (100, 49.375)
The equation in vertex form for a parabola is represented as
y = a(x - h)² + k
Where
Vertex (h, k) = (75, 55)
Point (x, y) = (100, 49.375)
So, we have
y = a(x - 75)² + 55
Substitute (x, y) = (100, 49.375) in y = a(x - 75)² + 55
49.375 = a(100 - 75)² + 55
So, we have
625a = -5.625
Divide by 625
a = -0.009
Substitute a = -0.009 in y = a(x - 75)² + 55
y = -0.009(x - 75)² + 55
Hence, the equation is y = -0.009(x - 75)² + 55
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You NEVER distribute a coefficient of an absolute value. True or False?
Answers
Answer:
TRUE!!!!!!!!!
Step-by-step explanation:
Could someone help me out? I don't get it
Answers
(x-2)(x+1)(x+5)
(x^2-x-2)(x+5)
x^3-x^2-2x+5x^2+5x-10
So after simplifying this, you are left with
A.) x^3+4x^2-7x-10
Hope this helps!