x -2 and x 5 provide the solution to the system of inequalities.
A collection of equations with the same variables is known as a system of equations. The only difference is that you're working with inequalities rather than equations in a system of inequalities. Finding the variable values that will make each inequality true simultaneously is necessary to solve a system like this.
(x+2)(x-5) 0, according to the inequality formula.
The inequality's zeros will be provided by the inequality's zeros, as demonstrated:
(x+2)(x-5) < 0.
(x+2) < 0
x < -2
Similarly;
x - 5 < 0
x < 5
Thus, x -2 and x 5 provide the solution to the system of inequalities.
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In each of the following graphs, find the lengths of the line segments shown. Write your answers (in simplest
radical form if they are not integers.
(a)
B
(b)
Q
The length of the two segments, written as radicals, are:
AB = √117
PQ = √244
How to find the length of the segments shown?Remember that for a segment whose endpoints are (x₁, y₁) and (x₂, y₂), the length of the segment is:
L = √( (x₂ - x₁)² + (y₂ - y₁)²)
First, for the segment AB the endpoints are:
A = (-4, -4)
B = (2, 5)
Then the length is:
L = √( (-4 - 2)² + (-4 - 5)²)
L = √117
For the segment PQ the endpoints are:
P = (-6, 8)
Q = (6, -2)
The length is:
L = √( (-6 - 6)² + (8 + 2)²)
L = √244
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(a^-7 x b^-2)^-9 =?
Select the equivalent expression.
The equivalent expression to the expression (a⁻⁷ × b⁻²)⁻⁹ is (a⁷ × b²)⁹.
What are some rules of exponents?Some common rules of exponents are
xᵃ×xᵇ = xᵃ⁺ᵇ.
xᵃ/xᵇ = xᵃ⁻ᵇ.
Addition and subtraction of exponents are only possible for the same base value and when the base is different and both have the same exponent we just multiply the bases and write the exponent.
The given expression is (a⁻⁷ × b⁻²)⁻⁹.
= a⁻⁷ˣ⁻⁹ × b⁻²ˣ⁻⁹.
= a⁶³ × b¹⁸.
= (a⁷ × b²)⁹.
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The cost of 12 oranges and 7 apples is $5.36. 8 oranges and 5 apples cost is $3.68. Find the cost of each.
Answer:
oranges €0·2б apples€0·32
Step-by-step explanation:
Answer:
apple $0.32 , orange $0.26
Step-by-step explanation:
let o and a represent the cost of an orange and apple, respectively , then
12o + 7a = 5.36 → (1)
8o + 5a = 3.68 → (2)
multiplying (1) by 8 and (2) by - 12 and adding will eliminate o
96o + 56a = 42.88 → (3)
- 96o - 60a = - 44.16 → (4)
add (3) and (4) term by term to eliminate o
0 - 4a = - 1.28
- 4a = - 1.28 ( divide both sides by - 4 )
a = 0.32
substitute a = 0.32 into either of the 2 equations and solve for o
substituting into (1)
12o + 7(0.32) = 5.36
12o + 2.24 = 5.36 ( subtract 2.24 from both sides )
12o = 3.12 ( divide both sides by 12 )
o = 0.26
the cost of an apple is $0.32 and the cost of an orange is $0.26
\The graph for the equation y = negative x + 2 is shown below. On a coordinate plane, a line with positive slope goes through (0, 2) and (2, 0). If another equation is graphed so that the system has an infinite number of solutions, which equation could that be? y = negative 2 (x minus 1) y = negative (x + 2) y = negative one-fourth (4 x minus 8) y = negative one-half (x + 4)
An infinite number of solutions is generated with a multiple of the first function, hence, the correct option is:
\(y = -\frac{1}{4}(4x - 8)\)
The graph given is:
\(y = -x + 2\)
When two equations are multiple, the system involving these two equations has infinite solutions.
Among the options, the multiple of the original function is:
\(y = -\frac{1}{4}(4x - 8)\)
\(y = -x + 2\)
Hence, \(y = -\frac{1}{4}(4x - 8)\) is the correct option.
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The correct answer is C
-Banana
What is the measure of
Determine whether each statement below is true about the equation y=z. Choose True or False for each statement. The graph of the equation passes through the origin. The y-intercept of the graph of the equation is. As x increases by 1, y increases by 2. The slope of the graph of the equation is O True O True O True O True O False O False O False O False
The y intercept is 0 and the slope of the graph of the equation is 1/2. As the value of y increase by 1, the value of x increases by 2
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables. Types of equation are linear, quadratic, cubic and so on.
The standard equation of a linear equation is:
Ax + By = C
Where A, B and C are constants
The slope intercept form of a linear equation is:
y = mx + b
where m is the rate of change and b is the y intercept
Given the equation:
y = (1/2)x
The y intercept is 0 and the slope of the graph of the equation is 1/2.
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5. Find the slant height of the square pyramid illustrated below that has a
surface area of 896 ft?. Round your final answer to the nearest foot.
(3 marks)
16 ft
16 ft
Answer:
20 ft
Step-by-step explanation:
The formula for the surface area of a pyramid is often written in terms of the base dimensions and the slant height. We can solve that formula for the slant height.
SA = base area + lateral area
SA = b² + 2bs . . . . . where b is the base dimension, and s is the slant height
SA -b² = 2bs . . . . . subtract the base area
s = (SA -b²)/(2b) . . . . divide by the coefficient of s
Using the given values for surface area and base length, we find ...
s = (896 -16²)/(2·16) = 640/32 = 20 . . . feet
The slant height of the pyramid is 20 feet.
Evaluate log4 exponent 0.5
We can claim that after answering the above question, the So, logarithm \(log4 (0.5^(1/2)) =-0.0752\)
what is logarithm?The logarithm is a power's reciprocal in mathematics. Accordingly, the exponent by which b must be raised to obtain a number x equals the logarithm of that number in base b. For instance, since 1000 = 103, its base-10 logarithm is 3, or log10 = 3. As an illustration, the base 10 logarithm of 10 is 2, while the square of 10 is 100. Log 100 = 2. To answer a question like, For example, how many times must a base of 10 be multiplied by itself to achieve 1,000, a logarithm (or log) is the mathematical term utilized. The solution is 3 (1,000 = 10 10 10).
Using the following property of logarithms:
\(log_a (b^c) = c * log_a (b)\\log4 (0.5^(1/2))\\(1/2) * log4 (0.5)\\log4 (0.5) = log (0.5) / log (4)\\log (0.5) ≈ -0.3010\\log (4) = 2\)
Therefore,
\(log4 (0.5) ≈ -0.3010 / 2 ≈ -0.1505\\(1/2) * log4 (0.5) ≈ (1/2) * (-0.1505) ≈ -0.0752\\\)
So, \(log4 (0.5^(1/2)) =-0.0752\)
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The circumference of a circle is 15pi centimeters what is the area of the circle in terms of pi?
\(\textit{circumference of a circle}\\\\ C=2\pi r ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=15\pi \end{cases}\implies 15\pi =2\pi r\implies \cfrac{15\pi }{2\pi }=r\implies \cfrac{15}{2}=r \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a circle}\\\\ A=\pi r^2 \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=\frac{15}{2} \end{cases}\implies A=\pi \left( \cfrac{15}{2} \right)^2\implies A=\cfrac{225\pi }{4}\implies A=56.25\pi\)
Please help. How can i find the volume of cylinder
THE # are the blue and grey
The volume of the cylinder would be 2120.6\(units^3.\)
To find the volume of a cylinder, you need to use the formula:
Volume = π x \(radius^2\) x height
Where π (pi) is a mathematical constant approximately equal to 3.14159, radius is the distance from the center of the cylinder to its edge, and height is the distance from one end of the cylinder to the other.
To apply this formula, you need to know the values of the radius and height of the cylinder. Once you have these values, simply substitute them into the formula and solve for the volume.
For example, if the radius of a cylinder is 5 units and the height is 27 units, the volume of the cylinder would be:
Volume = π x \(radius^2\)x height
Volume = 3.14159 x\(5^2\)x 27
Volume = 2120.6 \(units^3\)
Therefore, the volume of the cylinder would be 2120.6\(units^3.\)
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Quickly!!! A turtle and a snail are 300 feet apart when they start moving towards each other. The turtle is moving at a speed of 5 feet per minute, and the snail is moving at a speed of 1 foot per minute.how fast are the turtle and snail approaching each other
Answer:
6 feet per minute.
Step-by-step explanation:
The turtle and snail are moving towards each other, so their speeds add up. Therefore, the combined speed at which they approach each other is:
5 feet/min (turtle's speed) + 1 feet/min (snail's speed) = 6 feet/min
Therefore, the turtle and snail are approaching each other at a speed of 6 feet per minute.
Answer:
6 feet per minute.
It is known that ARST - AWXY. If RS =18, ST = 25, and TR=11 then which of the following is closest
to the ratio of XY to WX?
(1) 0.44
(3) 2.27
(2) 1.39
(4) 0.72
Answer:
\(XY : WX = 1.39\)
Step-by-step explanation:
Given
\(RS = 18; ST = 25; TR = 11\)
Required
Which is closest to \(XY : WX\)
From the question, we understand that: \(\triangle RST\) and \(\triangle WXY\) are similar.
This means that, the following sides are similar:
\(RS \to WX\)
\(ST \to XY\)
\(TR \to YW\)
So:
\(XY : WX = ST : RS\)
This gives:
\(XY : WX = 25 : 18\)
Express as fraction
\(XY : WX = \frac{25 }{ 18}\)
\(XY : WX = 1.39\) --- approximated
Which equation represents an exponential function with an initial value of 500?
Answer:
An exponential function is written in the form of f(x) = a (b)x. When we want to find an initial value of 500, it means that when x = 0, then y must equal 500. So, you plug in 0 to x in the exponential function, which leaves you with f(0) = a. Then, since f(0) = 500, that means a = 500
Hope this will help! =)
Step-by-step explanation:
Among all pairs of numbers whose sum is 24, find a pair whose product is as large as possible. Show the work(the steps)! Write an equation of the corresponding quadratic function. How parabola opens? What is the maximum product? Does this function has a maximum value or the minimum value? Explain. Graph the function and upload the image.
The pair of numbers that yields the maximum product when their sum is 24 is (12, 12), and the maximum product is 144. The corresponding quadratic function is P(x) = -x^2 + 24x, and the parabola opens downwards.
To find a pair of numbers whose sum is 24 and whose product is as large as possible, we can use the concept of maximizing a quadratic function.
Let's denote the two numbers as x and y. We know that x + y = 24. We want to maximize the product xy.
To solve this problem, we can rewrite the equation x + y = 24 as y = 24 - x. Now we can express the product xy in terms of a single variable, x:
P(x) = x(24 - x)
This equation represents a quadratic function. To find the maximum value of the product, we need to determine the vertex of the parabola.
The quadratic function can be rewritten as P(x) = -x^2 + 24x. We recognize that the coefficient of x^2 is negative, which means the parabola opens downwards.
To find the vertex of the parabola, we can use the formula x = -b / (2a), where a = -1 and b = 24. Plugging in these values, we get x = -24 / (2 * -1) = 12.
Substituting the value of x into the equation y = 24 - x, we find y = 24 - 12 = 12.
So the pair of numbers that yields the maximum product is (12, 12). The maximum product is obtained by evaluating the quadratic function at the vertex: P(12) = 12(24 - 12) = 12(12) = 144.
Therefore, the maximum product is 144. This quadratic function has a maximum value because the parabola opens downwards.
To graph the function, you can plot several points and connect them to form a parabolic shape. Here is an uploaded image of the graph of the quadratic function: [Image: Parabola Graph]
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3. What type of angle is angle A?
Faye has $3,000 that she is going to deposit into each of the two accounts as shown:
•Account A: 5% simple interest for 5 years
•Account B: will earn $828.84 over 5 years
Assuming Faye does not make any additional deposits nor withdrawals, find t combined amount of her two accounts after 5 years.
Answer:
Faye has $3,000 that she is going to deposit into each of the two accounts as shown:
•Account A: 5% simple interest for 5 years
•Account B: will earn $828.84 over 5 years
Assuming Faye does not make any additional deposits nor withdrawals, find t combined amount of her two accounts after 5 years.
Step-by-step explanation:
sub to sir sir bmgo ΔΔ
A is the set of cities in a region. B is the set of people who are now mayors of the cities in that region.
a. Are the sets equivalent? Explain.
b. Are the sets equal? Explain.
a. The sets are ? because they
b. The sets are:
Anot equivalent
equivalent
The sets A and B are equivalent but they are not equal.
What are equal sets?We know that a set is a collection of elements. The elements that we can find in a set are arranged in order such that we can easily see what is composed of the set.
Now two sets are said to be equivalent if they have the same cardinality. We can see that the set of the sets A and B are equal but not equivalent because they contain the same elements and also have the same cardinality since the cities must all have mayors.
Thus, the number of cities is equivalent to the number of mayors thus the two sets could have the same cardinality (equivalent) but not the same elements thus they are not equal.
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Fishermen fishing for spiny lobster are allowed to keep only lobsters with a carapace length of 3.25 inches or longer. (Than carapace length is measured from the rear edge of the eye socket to the rear edge of the body shell.) Any lobster smaller than 3.25 inches must be returned to the sea. Suppose that lobster carapace lengths have a distribution that is mound shaped and approximately symmetric with a mean of 5.50 inches and a standard deviation of 2.25 inches. Approximately what proportion of lobsters will have to be returned to the sea
Answer:
16%
Step-by-step explanation:
First we start by solving for the z score
We have the following information
x = 3.25
Standard deviation = sd = 2.25
Mean = 5.50
Z = (x - mean)/sd
z = 3.25 - 5.50/2 25
z = -1.00
If we look this up in the standard normal distribution table,
P(z<-1.00) = 0.1587
Which when approximated gives us
16%
Therefore approximately 16% of lobsters will have to be returned back to the sea.
.04 + .143 + .3706 =
A .4536
B .5436
C .5536
D .5889
E none of these
The required value of the sum of the decimal values is 0.5536. Option c is correct.
Given that,
0.4 + 0.143 + 0.3706 =
It is defined as a decimal number that only consists of repeating digits after a certain interval after the decimal. For example, 94.642642642..., 213.569569... etc.
Here,
To simplify 0.4 + 0.143 + 0. 3706 we transform it into
= 0.0400 + 0.1430 + 0.3706
= 0.1830 + 0.3706
= 0.5536
Thus, the required value of the sum of the decimal values is 0.5536. Option c is correct.
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Help solve please
H ( - 1) = 6 - x
Evaluating the function in x = -1, we get:
H(-1) = 7
How to evaluate a function?
When we have a function:
y = f(x)
Evaluating the function in a value, like x = a gives:
y = f(a).
This means that we need to replace all the "x" in the equation by the number "a".
In this case:
H(x) = 6 - x
And we want to get:
H(-1)
So we need to replace the x by -1.
H(-1) = 6 - (-1) = 7
H(-1) = 7
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there are 12 eggs in a dozen. If a farmer's chickens produce an average of 322 dozen eggs in a month, how many eggs are reported per month
Determine the most precise name for quadrilateral ABCD. Answers: parallelogram quadrilateral rhombus kite angles: (7,6) (3,5) (2,1) (6,2)
Answer:
rhombus
Step-by-step explanation:
It is helpful to plot the points on a graph. There, you can see that the rise and run of each segment are 1 and 4 (or vice versa). This tells you they are the same length, but not perpendicular.
A quadrilateral with all sides the same length, but not perpendicular, is a rhombus.
Answer: Rhombus
Step-by-step explanation: I got it right on pearson
HELP!!
Calculate the residuals for your scatterplot in step 2d.
In statistics, a residual is defined as the difference between the predicted value of an outcome variable and the observed value of that variable. Residuals are used to evaluate how well a regression model fits the data.In order to calculate the residuals for a scatterplot, follow these steps:
Step 1: Plot the data on a scatterplot.
Step 2: Perform a regression analysis on the data to find the equation of the regression line. This equation should take the form y = mx + b, where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept.
Step 3: Using the equation of the regression line, calculate the predicted value of y for each data point in the scatterplot.
Step 4: Subtract each predicted value of y from the actual value of y for each data point in the scatterplot. This difference is the residual for that data point.
Step 5: Plot the residuals on a new scatterplot. The x-axis of this scatterplot should be the independent variable, and the y-axis should be the residual values.
Step6: This scatterplot is called a residual plot.Residuals are useful for identifying patterns in data that the regression model fails to capture. If the residuals are randomly scattered around the horizontal axis, then the regression model is a good fit for the data. If there are clear patterns in the residual plot, then the regression model may not be a good fit for the data and further analysis is required.
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For each pair of functions f and g below, find f(g(x)) and g (f(x)).
Then, determine whether fand g are inverses of each other.
Simplify your answers as much as possible.
(Assume that your expressions are defined for all x in the domain of the composition.
You do not have to indicate the domain.)
f(x) = x+4
g (x) = x+4
The Function f(g(x)) = g(f(x)) = x + 8.
The functions are: f(x) = x + 4 and g(x) = x + 4. We can find f(g(x)) by substituting g(x) in place of x in f(x).
f(g(x)) = f(x + 4) = (x + 4) + 4 = x + 8
Similarly, we can find g(f(x)) by substituting f(x) in place of x in g(x).g(f(x)) = g(x + 4) = (x + 4) + 4 = x + 8
Thus, we can see that f(g(x)) and g(f(x)) are equal to each other,
which is x + 8.
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Ifx + iy = 1
1+i/
1-i
prove that, x² + y² = 1
HI MATE
In St John's school there are 20 rooms that need cleaning. It takes four cleaners two
hours each school day to clean all of the rooms.
How long does each room take to clean ?
Answer:
im a curious cat lolololol
Step-by-step explanation:
how do i do this?? thanks in advance!
The measure of one small angles of a right triangle is 45 less than twice the measure of the other small angle. Find the measure of both angles
Answer:
x + x - 45 = 90
2x - 45 = 90
2x = 135
x = 67.5, so x - 45 = 22.5
The other two angles measure 22.5° and 67.5°.
Question 9 of 10 If two triangles are congruent, which of the following statements must be true? Check all that apply. A. The triangles have the same size, but not the same shape. B. The triangles have the same size and shape. C. The corresponding angles of the triangles are congruent. D. The corresponding sides of the triangles are congruent.
Answer:
ACD
Step-by-step explanation:
All statements are correct for two congruent trianglesStep-by-step explanation:If two triangles are congruent than the rules states thatTriangles are congruent when all corresponding sides and interior angles are congruent. The triangles will have the same shape and size, but one may be a mirror image of the other.As the fig shows two triangleΔ PQRΔ LMNAll three corresponding sides of triangle are congruentall three corresponding angles are congruentBoth triangle are of same sizeBoth are of same shapehence all the statements are CORRECT Keywords:Geometry
A single card is selected from a standard deck and a coin is tossed. Find the probability of selecting any Heart from the deck and then tossing a tail using the coin.
a. 0.125
b. 0.029
c. 0.259
d. 0.250
The probability of selecting any Heart from the deck and then tossing a tail using the coin is 0.125
How to determine the probabilityFrom the question, we have the following parameters that can be used in our computation:
The probability of selecting a Heart from a standard deck of 52 cards is 13/52, or 1/4.The probability of tossing a tail using a fair coin is 1/2.To find the probability of selecting a Heart and then tossing a tail,
We need to multiply the probability of selecting a Heart by the probability of tossing a tail.
So:
P(selecting Heart and tossing tail) = P(selecting Heart) x P(tossing tail)
= 1/4 x 1/2
Evaluate
= 0.125
Hence, the probability is 0.125
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