In the equation:
\(y-(-11)=-\frac{1}{2}(x-(-10))\)The y is called the dependent variable, and x is the independent variable.
he roots of the function f(x) = x2 – 2x – 3 are shown. What is the missing number?
x = –1 and x =
Based on the data shown below, calculate the correlation coefficient (to three decimal places)
Х
3
4
5
6
7
8
9
10
у
100. 2
93
91. 6
89. 4
86. 6
81. 6
82. 2
82. 4
T=
Question Help: D Post to forum
The correlation coefficient is -0.4124
How to determine the correlation coefficientFrom the question, we have the following parameters that can be used in our computation:
The table of values
Next, we enter these values in a graphing tool, where we have the following summary
X Values
∑ = 52
Mean = 6.5
∑(X - Mx)2 = SSx = 42
Y Values
∑ = 93
Mean = 11.625
∑(Y - My)2 = SSy = 7567.875
X and Y Combined
N = 8
∑(X - Mx)(Y - My) = -232.5
For the coefficient, we have
r = ∑((X - My)(Y - Mx)) / √((SSx)(SSy))
r = -232.5 / √((42)(7567.875)) = -0.4124
Hence, the value is -0.4124
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The James used their sprinkler for 40 hours last month and the Jenkins used their sprinkler for 35 hours. The total output of the two houses was 1525 L. If their combined rate of usage was 40 L/hr, what is the rate of usage for each house?
Answer:
Step-by-step explanation:
.................8908989
What is the circle the triangle and the square
Answer:
26
Step-by-step explanation:
○= 7
□=5
◇=4 (The triangle)
Math is awesome you think?
Quadrilateral JKLM is an isosceles trapezoid. Write each length or angle measure. Trapezoid J K L M is divided into 4 triangles by its diagonals, which intersect at point R. Angle K M J is 27 degrees and angle L M K is 78 degrees. J R is 39 units and K R is 42 units.
m∠JKL =
m∠KJM =
JL =
m∠KRL =
JL = 4x = 12 units.
Step-by-step explanation:
Since JKLM is an isosceles trapezoid, we know that parallel sides JK and LM are congruent. Additionally, since the diagonals intersect at point R, we know that angles JRM and KRL are congruent.
To find m∠JKL, we can use the fact that the sum of the angles in a quadrilateral is 360 degrees. We know that angle LMK is 78 degrees, angle KJM is 27 degrees, and JRM and KRL are congruent. So, m∠JKL = 360 - 78 - 27 - 2x, where x is the measure of angle KRL.
To find angle KRL, we can use the fact that JRL and KRM are congruent (since they are opposite angles formed by intersecting lines). We also know that JRL + KRL = 180 degrees (since they form a linear pair). Therefore, JRL = KRL = (180 - 27 - 78) / 2 = 37.5 degrees.
Plugging this into our equation for m∠JKL, we get:
m∠JKL = 360 - 78 - 27 - 2(37.5) = 197 degrees
To find m∠KJM, we can simply use the given measure:
m∠KJM = 27 degrees
To find JL, we can use the Pythagorean theorem on right triangles JRL and KRL. We know that JRL is a 3-4-5 right triangle (since 3, 4, 5 is a Pythagorean triple), so JR = 3x and RL = 4x for some value of x. Similarly, we know that KRL is a 7-24-25 right triangle (since 7, 24, 25 is another Pythagorean triple), so KR = 7y and RL = 24y for some value of y.
Since JR = 39 and KR = 42, we can set up two equations:
3x + 24y = 39
4x + 7y = 42
Solving for x and y using any method (substitution, elimination, etc.), we get:
x = 3, y = 2
Therefore, JL = 4x = 12 units.
Write an expression for the sequence of operations described below.
raise 3 to the 9th power, then add the result to j
Do not simplify any part of the expression.
An expression for given sequence of operations is: j + 3^9
In this question, we need to write an expression for the sequence of operations described below.
raise 3 to the 9th power, then add the result to j
Consider the part of given statement,
raise 3 to the 9th power
We write this as: 3^9
then we add this result to j.
So, we get an expression: 3^9 + j
Therefore, an expression for given sequence of operations is: j + 3^9
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In the game of Pick-A-Ball, there are 10 colored balls: 2 red, 4 white, and 4 blue. The balls have been placed into a small bucket, and the bucket has been shaken thoroughly. You will be asked to reach into the bucket without looking and select 2 balls. Because the bucket has been shaken thoroughly, you can assume that each individual ball is selected at random with equal likelihood of being chosen. It is common in games of chance to be rewarded for obtaining unlikely results. For example, in the game of poker, hands that are less likely to occur tend to trump hands that are more likely to occur. That same concept applies in this game. It costs $10 to play Pick-A-Ball, and your prize is the reciprocal of the probability of obtaining your exact sequence of results, expressed in dollars. For example, if the probability of obtaining your exact sequence of results is 0.10, your prize is 1/0.10
Required:
What is the probability of selecting the color of ball that you just selected?
Answer:
The probability of selecting the color of ball that you just selected(a red ball) is \(P(r) = \frac{2}{10}\)
Step-by-step explanation:
From the question we are told that
The total number of colored balls is n = 10
The number of red balls is r = 2 red
The number of white ball is w = 4
The number of blue balls is b = 4
The number of balls to be selected is N = 2 balls
The cost of playing picking a ball is c = $10
The winnings is \(k = \$ P(A)\)
Here P(A) is the probability of obtaining the exact sequence of result and from the question it is P(A) = 0.10
Generally my price according to the question is
\(k = \frac{0.10 }{10}\)
=> \(k = 0.01 \)
Let assume we selected a red ball
Generally the probability of selecting a red ball is mathematically represented as
\(P(r) = \frac{2}{10}\)
Rodrigo's hair is 10 2/7 inches long. The barber trims 1/4 inch. About how long is his his hair now ?
Does anyone know the answers to 5. And 6.
Need answers please
Answer/Step-by-step explanation:
5. ✔️Exterior angle = angle outside the triangle = W
✔️Remote interior angle of the triangle to the exterior angle W = opposite angles to angle W which are X and Y
✔️m<X + m<Y = m<W (exterior angle theorem of a triangle)
✔️m<W + m<Z = 180° (linear pair/angles on a straight line)
6. m<6 = 115°
m<5 = 120°
✔️m<2 = 180° - m<5° (linear pair/angles on a straight line)
m<2 = 180° - 120°
m<2 = 60°
✔️m<3 = 180° - m<6° (linear pair/angles on a straight line)
m<3 = 180° - 115°
m<3 = 65°
✔️m<1 = 180° - (m<2 + m<3) (sum of triangle theorem)
m<1 = 180° - (60° + 65°)
m<1 = 55°
✔️m<4 = 180° - m<1 (linear pair/angles on a straight line)
m<4 = 180° - 55°
m<4 = 125°
The volume of this rectangular prism is 160 cubic yards. What is the surface area?
10 yd
surface area =
Submit
0
4 yd
square yards
4
Answer: The surface area of the rectangular prism is approximately 4 square yards.
Step-by-step explanation: Given that the volume of the rectangular prism is 160 cubic yards, we can find the dimensions of the prism using the formula:
V = lwh
where V is the volume, l is the length, w is the width, and h is the height.
So, we have:
160 = lwh
Now, we need to find two other measurements in order to calculate the surface area of the rectangular prism. However, we do not have enough information to find all three dimensions. Therefore, we will assume one dimension and find the other two.
Let's assume that the height of the rectangular prism is 10 yards. Then, we can rearrange the formula for the volume to solve for the product of the length and width:
lw = V/h = 160/10 = 16
Now, we have two equations:
lw = 16
wh = 160/10 = 16
Solving for w in the first equation, we get:
w = 16/l
Substituting this expression for w in the second equation, we get:
l(16/l)h = 16
Simplifying, we get:
h = 1
Therefore, the dimensions of the rectangular prism are:
length = l
width = 16/l
height = 10
Now, we can calculate the surface area of the rectangular prism using the formula:
SA = 2lw + 2lh + 2wh
Substituting the values we found, we get:
SA = 2(l(16/l)) + 2(l(10)) + 2((16/l)(10))
SA = 32/l + 20l + 160/l
To find the minimum value of this expression, we can take its derivative with respect to l and set it equal to zero:
dSA/dl = -32/l^2 + 20 + (-160/l^2)
0 = -32/l^2 + 20 - 160/l^2
52/l^2 = 20
l^2 = 52/20
l ≈ 1.44
Substituting this value of l back into the expression for SA, we get:
SA ≈ 4 square yards
Therefore, the surface area of the rectangular prism is approximately 4 square yards.
Given that a+b = 10 and a square - b square = 40 find the value of a-b
Answer:
the value of a - b is 4.
Step-by-step explanation:
We have been given the following two equations:
a + b = 10 ------------(1)
a² - b² = 40 -------(2)
We can factor the left-hand side of equation (2) using the difference of squares identity:
(a + b)(a - b) = 40
Substituting equation (1) into this equation, we get:
10(a - b) = 40
Dividing both sides by 10, we get:
a - b = 4
Therefore, the value of a - b is 4.
Step-by-step explanation:
if I understand this correctly :
a + b = 10
a² - b² = 40
(a² - b²) = (a + b)(a - b) = 40
10(a - b) = 40
(a - b) = 4
Carrie has 3gallons of paint Bryan has 10quarts of paint how many more pints do Carrie have than Bryan
Carrie has 4 more pints of paint than Bryan.
Carrie has 3 gallons of paint, which is equivalent to 12 quarts (1 gallon = 4 quarts). On the other hand, Bryan has 10 quarts of paint.
To compare the quantities in the same unit, we note that 1 quart is equal to 2 pints.
Carrie's 12 quarts of paint is equivalent to 12 × 2 = 24 pints.
Bryan's 10 quarts is equivalent to 10 × 2 = 20 pints.
To find the difference, we subtract Bryan's pint quantity from Carrie's:
24 - 20 = 4 pints.
Therefore, Carrie has 4 more pints of paint than Bryan.
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could someone help me with this and show work?
The volume of the shape is 490cm³
What is volume of prisms?A prism is a solid shape that is bound on all its sides by plane faces. prism is named after the shape of these bases.
The base of this prism is rectangular. The volume of a prism is expressed as;
V = base area × height
base area = 7 × 10 = 70cm²
height = 7cm
the volume of the shape = 70× 7 = 490cm²
therefore the volume of the shape is 490cm³.
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someone help please!!
Answer:
1
Step-by-step explanation:
x² +5+6
Whats the perimeter
Answer:
Step-by-step explanation:
x^2 + 11
HELP NEED ASAP!!! PLEASE HELP ME OUT
The value of x that will make both lines A and B to be parallel is: 20
How to solve Line transversal theorem?The line transversal theorem states that:
If two parallel lines are cut by a transversal line, then it means that the Alternate Exterior Angles are congruent.
Similarly, If two parallel lines are cut by a transversal, then the corresponding angles are congruent.
Now, we see that the two given angles will be corresponding angles using the line transversal theorem and as such they are congruent. thus:
3x + 20 = 80
3x = 80 - 20
3x = 60
x = 60/3
x = 20
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HELP! Which input-output tables represent a function? Select ALL correct answers.
The input-output tables represent a function that will be table C and table D.
What is a function?A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.
If the value of the output is single for each distinct value of the input. Then the table represents the function.
In option A, the number of outputs is 2 for a single value of the input that is x = 1. So, it does not represent a function.
In option B, the number of outputs is 2 for a single value of the input that is x = 5. So, it does not represent a function.
In option E, the number of outputs is 2 for a single value of the input that is x = 1. So, it does not represent a function.
The input-output tables represent a function that will be table C and table D.
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5x5x5x5x5x5+ 10-2x10x20
Answer:
15,235
Step-by-step explanation:
Answer is in a photo. I couldn't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
bit.\(^{}\)ly/3a8Nt8n
Question 13(Multiple Choice Worth 2 points)
(Multi-Step Percent Problems MC)
A gaming system costs $600 and is on sale for 35% off. After the discount, there is a 5% tax. What is the final price of the gaming system?
$409.50
$390.00
$220.50
$210.00
Find the most general antiderivative of the function. (Check your answer by differentiation. Use C for the constant of the antiderivative.)
g(t) = 6 + t + t2/square root t
Answer:
\(6t + \frac{t^2}{2}+2/5t^{5/2} + C\)
Step-by-step explanation:
Given the expression;
g(t) = 6 + t + t²/√t
This can be rewritten as;
g(t) = 6 + t +t²/t^1/2
g(t) = 6 + t +t^{2-1/2}
g(t) = 6 + t +t^3/2
Integrate the result
\(\int\limits {(6 + t+t^{3/2}}) \, dt\\\)
Using the formula x^{n+1}/n+1
\(\int\limits {(6 + t+t^{3/2}}) \, dt\\ = 6t + \frac{t^2}{2}+\frac{t^{3/2+1}}{3/2 + 1} \\ = 6t + \frac{t^2}{2}+\frac{t^{5/2}}{5/2} \\= 6t + \frac{t^2}{2}+2/5t^{5/2} + C\)
An antiderivative is a function that reverses what the derivative does.
Antiderivative is also known as integration.
Antiderivative of given function is \(6t+\frac{t^{2} }{2}+\frac{2}{5}t^{5/2}+C\)
Antiderivative , \(\int\limits^ {}t^{n} \, dt=\frac{t^{n+1} }{n+1} +C\)
So, \(\int\limits {(6+t+t^{2}/\sqrt{t} )} \, dt =\int\limits {(6+t+t^{3/2} )} \, dt\\\\=6t+t^{2}/2 + \frac{t^{3/2+1} }{3/2+1}\)
\(\int\limits {g(t)} \, dt=6t+\frac{t^{2} }{2}+\frac{2}{5}t^{5/2}+C\)
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what is the property of 3x(5x7)=(3x5)7
The property you are referring to is called the associative property of multiplication. According to this property, when multiplying three numbers, the grouping of the numbers does not affect the result. In other words, you can change the grouping of the factors without changing the product.
In the equation you provided: 3x(5x7) = (3x5)7
The associative property allows us to group the factors in different ways without changing the result. So, whether we multiply 5 and 7 first, or multiply 3 and 5 first, the final product will be the same.
ill give brainless if you get right
Answer:
Step-by-step explanation:
Rolled the dice 6 times each with different values.
The total values after the 6 rollings is 31 you just add the sticks after each roll that's how you get the 31.
But the question is asking how many times are we likely to get 5.
You look for the numbers that are equal or greater than 5 / the total values found
The answer will be 5/331
Hope this helped.
If electricity is billed at a rate of $0.75 per KWH and you used on average 120 KWHs per month, what would you expect to pay each month?
You would expect to pay $90 each month for electricity based on an average usage of 120 KWHs per month.
How to find the expected monthly payTo calculate the monthly cost of electricity, you can multiply the average number of kilowatt-hours (KWH) used per month by the cost per KWH.
Given:
Cost per KWH: $0.75
Average monthly usage: 120 KWHs
To find the monthly cost, you can multiply the cost per KWH by the average monthly usage:
Monthly Cost = Cost per KWH * Average monthly usage
Plugging in the values, we have:
Monthly Cost = $0.75/KWH * 120 KWHs
Calculating the result:
Monthly Cost = $90
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identify each classification of the real number system that can describe the set of numbers shown {3, 9, 147, 400}
) Integer
) Irrational
) Real
) Rational
) Whole
) Natural
Step-by-step explanation:
all of these 4 numbers are
integer (whole numbers positive and negative).
real (every whole number can be written as e.g. 3.0 and is part of the real numbers).
rational (as any whole number can be written as e.g. 3/1 and is part of the rational numbers).
whole (no fractions).
natural (they are in the set of [1, 2, 3, ... infinity) ).
the only thing here they are not is irrational, as to be irrational they would need to have an infinite sequence of digits after the decimal point without any repeating pattern.
Check all of the possible first steps in factoring a polynomial with four terms.factor out a GCFfactor the difference of cubesfactor a sum of cubesfactor a difference of squaresfactor a perfect-square trinomialfactor by grouping
Answer:4x as much as GCF
Step-by-step explanation:
u need to do 4x
Answer:
Step-by-step explanation:
Polynomials can be solved in several ways.
The possible first steps are: A. Factor out a GCF and F. Factor by grouping
A polynomial with 4 terms is represented as:
Because it has 4 terms, it cannot be solved by sum or difference of cubes or squares.
This mean that: options (b), (c), (d) and (e) are false.
However, the terms of the polynomial can be factored, if they have a common factor, and they can also be grouped.
Hence, the possible first steps are: A. Factor out a GCF and F. Factor by grouping
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SHOW WORK !!! ILL GIVE YOU BRAINLIST
Answer:
Step-by-step explanation:
2(2) + (2)^3 - 1/2(2)^2
4 + 8 - 1/2(4)
4 + 8 - 2
12 - 2 = 10
2+2=
a. 3
b. 5
c. 4
d. 7
Answer:
C
Step-by-step explanation:
2
+2
-----
4
the volume of water is usually distributed with a mean of 62ml and standard deviation of 40ml. What is the probability that the volume will be greater than 90ml?
The probability of the volume of water being over 90 ml is 24.10%.
What exactly is the standard normal distribution?A symmetric probability distribution only with equal mean, mean, as well as mode values is known as a standard normal distribution.A statistical table as well as computer software is used to estimate the likelihood of a standard normal distribution.For the given question;
The mean of the sample is; μ = 62 ml.
The standard distribution is; σ = 40 ml.
The probability of the values must lie more than 90 ml.
Thus,
P(x > 90) = P[ (x - μ)/ σ ]
Substitute the values;
P(x > 90) = 1 - P[ (90 - 62)/ 40]
P(x > 90) = 1 - P[0.7]
P(x > 90) = 1 - 0.758
P(x > 90) = 0.2410
P(x > 90) = 24.10%
Therefore, the probability that the the volume of water will be greater than 90 ml is 24.10%.
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What is the ordered pair of your location if you start at (0, 0), move 2 units up, and then move 3 units right?
Answer:
(3,2)
Step-by-step explanation: