Evaluating the function for x=2, F(x)= 8.
What is a linear equation?
Alternatively, a linear equation can be obtained by equating the linear polynomial over the field from which the coefficients are taken to zero.
The solution of such an equation is the value that makes the equation true when the unknowns are substituted.
If there is only one variable, there is only one solution. Often the term linear equation alludes to this special case where the variables are appropriately called unknowns.
With two variables, each solution can be interpreted as the Cartesian coordinates of a point on the Euclidean plane. The solutions of linear equations form lines in the Euclidean plane. Conversely, each line can be viewed as the set of all solutions to linear equations in two variables. This is the origin of the term linear for these types of equations. More generally, the solution of a linear equation in n variables forms a hyperplane (a subspace of dimension n − 1) in the Euclidean space of dimension n.
Therefore, Evaluating the function for x=2, F(x)= 8.
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Which diagram shows the rotation Rc, -90 (ABCD) = A'B'C'D'?
The diagram that shows the rotation of rectangle ABCD by -90 degrees is; Option A
What is the translation transformation rule?
When we rotate positive 90 degrees, the rotation is said to be counterclockwise but when we rotate negative 90 degrees, the rotation is said to be clockwise.
Now, we want to find the rotation that correctly describes rotation of the rectangle ABCD by negative 90 degrees.
Thus, looking at the options, the only one that has the negative 90 degrees rotation that is clockwise will be option A because we see that when we rotate to the right which is clockwise, the first point is A which is exactly what is in option A.
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The price of a coat is reduced by 17% in a sale.
The sale price is £78.85.
What was the original price of the coat?
Give your answer in pounds (£).
The required original price of the coat is given as £95.
What is the percentage?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
here,
let the original price of the coat be x,
According to the question
x - 17% of x = 78.85
x - 0.17x = 78.85
0.83x = 78.85
x = 78.85 / 0.83
x = £95
Hence, the cost of the coat before the sale is £95.
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Make
p the subject of the formula q - 2p = p + 4
Answer:
p = q - 2p - 4
Step-by-step explanation:
q - 2p = p + 4 ( isolate p on the right by subtracting 4 from both sides )
q - 2p - 4 = p
A cryotherapy chamber uses extreme cold to reduce muscle soreness. A chamber is currently 0°F. The temperature in the chamber is dropping 2.5°F every second. Identify an inequality that represents the numbers of seconds $s$ that can pass for the temperature to drop below -20 °F
Answer: The answer is $s$ > 7, which represents the number of seconds that can pass for the temperature in the cryotherapy chamber to drop below -20°F.
Step-by-step explanation: The temperature in the chamber will drop below -20°F when it reaches -20°F + 2.5°F = -17.5°F.
The temperature in the chamber is currently 0°F, so we can represent this situation with the inequality 0 - (2.5 * $s$) < -17.5, where $s$ is the number of seconds that can pass.
We can simplify this inequality by multiplying both sides by -1 to get the following: 2.5 * $s$ > 17.5.
Dividing both sides by 2.5, we get the final inequality: $s$ > 7.
Therefore, the number of seconds $s$ that can pass for the temperature in the cryotherapy chamber to drop below -20°F is greater than 7 seconds.
A sleep specialist wants to know if meditating before bedtime can help people fall asleep. In a study, he asked the subjects to meditate for various lengths of time just before going to bed.
The specialist tracked the subjects' meditation times, x, and how long it took them to fall asleep, y. Both times were recorded in minutes.
Answer:
whats the question?
Step-by-step explanation:
X² + 3x + y = 0
2x+y=5
Solve for x and y by substitution
The square root of a negative number is not a real number, this system of equations has no solution.
What is the system of equations?
A system of linear equations is a set of two or more equations that includes common variables. To solve a system of equations, we must find the value of the unknown variables used in the equations that must satisfy both equations.
To solve for x and y, we can start by solving one of the equations for one of the variables. Let's solve the second equation for y:
2x + y = 5
y = 5 - 2x
Now we can substitute this expression for y in the first equation to get an equation in terms of x:
x² + 3x + (5 - 2x) = 0
x² + 3x + 5 - 2x = 0
x² - x + 5 = 0
We can then solve this equation for x using the quadratic formula:
x = (-3 ± √(9 - 20))/2
x = (-3 ± √(-11))/2
Hence, the square root of a negative number is not a real number, this system of equations has no solution.
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Find the inverse function in slope-intercept form (mx+b):
f(x) = -x + 6
switch the variables
x = -y + 6
x - 6 = -y
-x + 6 = y
Two of the coordinates representing the corners of Maya's rectangular driveway are (-1, 1) and (1 1\2, -8 1\2
9. Plot the other two coordinates of Maya's rectangular driveway. What are the ordered pairs that you plotted?
Answer:
the coordinates of the other corner are (-10/3, -1 3/4).
The four ordered pairs that represent the corners of Maya's rectangular driveway are (-1, 1), (1 1/2, -8 1/2), (-10/3, -1 3/4), and (1 1/2, -1 3/4).
Step-by-step explanation:
To plot the other two corners of Maya's rectangular driveway, we need to determine the coordinates of the points that are diagonally opposite to the points (-1, 1) and (1 1/2, -8 1/2).
Since the points (-1, 1) and (1 1/2, -8 1/2) are diagonally opposite, we can draw a line through the center of the rectangle that is perpendicular to the line connecting these two points. The center of the rectangle can be found by averaging the x-coordinates and the y-coordinates of the two points. The x-coordinate of the center is (-1 + 1 1/2)/2 = 1/4 and the y-coordinate of the center is (1 + -8 1/2)/2 = -3 3/4.
We can then use the center of the rectangle and the slope of the line connecting (-1, 1) and (1 1/2, -8 1/2) to find the coordinates of the other two corners. The slope of the line is (-8 1/2 - 1)/(1 1/2 - (-1)) = -17/3, so the slope of the line perpendicular to it is -3/17.
We can use this slope and the center of the rectangle to find one of the remaining corners by moving a fixed distance in the y-direction from the center. For example, if we move 2 units in the positive y-direction from the center, we will reach the point (1/4, -3 3/4 + 2) = (1/4, -1 3/4). We can then use the slope of the line to find the x-coordinate of the other corner by solving the equation y = mx + b for x, where m is the slope, x is the x-coordinate of the corner, y is the y-coordinate of the corner, and b is the y-intercept. The y-intercept is the y-coordinate of the center, so we can solve the equation as follows:
y = -3/17 * x + (-3 3/4)
x = (y - (-3 3/4))/(-3/17)
Substituting the coordinates of the corner we found earlier, we get:
x = (-1 3/4 - (-3 3/4))/(-3/17) = (2)/(-3/17) = -10/3
So, the coordinates of the other corner are (-10/3, -1 3/4).
The four ordered pairs that represent the corners of Maya's rectangular driveway are (-1, 1), (1 1/2, -8 1/2), (-10/3, -1 3/4), and (1 1/2, -1 3/4).
The function f(x) = 2* and g(x) = f(x + k). If k = -5, what can be concluded about the graph of
g(x)?
1.) The graph of g(x) is shifted vertically
o 5 units above the graph of f(x)
o 5 units below the graph of f(x)
o the graph is not shifted vertically from the graph of f(x)
2.) The graph of g(x) is shifted horizontally
o 5 units to the left of the graph of f(x)
o 5 units to the right of the graph of f(x)
o the graph is not shifted horizontally from the graph of f(x)
The graph of g(x) is shifted vertically by 5 units below the graph of f(x). The graph of g(x) is shifted horizontally by 5 units to the left of the graph of f(x)
What can be concluded about the graph of g(x)?Given: f(x) = 2x and g(x) = f(x + k). If k = -5
Subtituting k = -5, we have:
g(x) = f(x -5) = 2(x-5)
The graph of g(x) is shifted vertically by 5 units below the graph of f(x)
The graph of g(x) is shifted horizontally by 5 units to the left of the graph of f(x)
To see this, we can consider the value of x = 0 for both functions. For f(x), f(0) = 20 = 0. For g(x), g(0) = f(-5) = 2(-5) = -10. Thus, the value of g(0) is 5 units below the value of f(0).
Similarly, the value of x = 5 for f(x) is f(5) = 25 = 10, while the value of x = 0 for g(x) is g(0) = f(-5) = 2(-5) = -10. Thus, the value of x = 5 for f(x) is 5 units to the right of the value of x = 0 for g(x).
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Please help, thank you!
52% of 128 is what?
Please answer I’m desperate
Answer: x = 3 and y = 4
Step-by-step explanation:
Step: Solve x + y= 7 for x:
x + y = 7
x + y + −y= 7+−y
x = −y + 7
Step: Substitute −y + 7forxinx+2y=11:
x + 2y = 11
−y + 7 + 2y = 11
y + 7 = 11
y + 7 + −7 = 11 + −7
y=4
Step: Substitute 4 for y in x = −y + 7:
x = −y + 7
x = −4 + 7
x = 3
Answer:
x = 3 and y = 4
Hope I did it right
What is the product of the two largest one-digit primes and the largest two-digit prime?
Answer:
see below
Step-by-step explanation:
A prime number is a whole number that cannot be exactly divided by another number other than itself and 1.
The two largest one digit prime numbers are 7 and 5. The product of them is 7×5=35.
The two largest two digit prime numbers are: 89 and 97.
89×97=8633
suppose that, of people who undergo routine screening, for every two people who have colon cancer, there are 100 who do not. (that is, 2/102 people have it.) of those who undergo screening and do have colon cancer, all of them will have a positive test. of the people who undergo screening but don't have colon cancer, only 2 percent have a positive test. a random person undergoes routine screening and has a positive test. what is the probability (not odds) that this person has colon cancer? choose the range in which the answer lies.
The probability that a person has colon cancer given that they have a positive test result is approximately 0.98. The answer lies in the range [0.95, 1.00].
Let's call the probability that a person has colon cancer given that they have a positive test result "p". We can use Bayes' Theorem to find this probability.
Bayes' Theorem is: p(A|B) = (p(B|A) * p(A)) / p(B)
In this case, A is the event that the person has colon cancer, and B is the event that the person has a positive test result.
We are given that:
p(B|A) = 1 (all people who have colon cancer will have a positive test result)
p(B|~A) = 0.02 (2% of people who do not have colon cancer will have a positive test result).
We are also given that p(A) = 2/102 (2 out of 102 people who undergo routine screening have colon cancer) and p(~A) = 100/102 (100 out of 102 people who undergo routine screening do not have colon cancer).
Substituting these values into Bayes' Theorem, we get:
p(A|B) = (1 * (2/102)) / (1 * (2/102) + 0.02 * (100/102))
Simplifying, we get:
p(A|B) = 0.98
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if two events are complementary, they must also be mutually exclusive events. group of answer choices true false
The statement that is if two events are complementary, they must also be mutually exclusive events is False.
Because not all mutually exclusive occurrences are necessarily complimentary, whereas all complementary events are mutually exclusive.
Mutually excusive events are those events that do not occur at the same time.
Complementary events are those two events which are the only possible events.
Since P(A) + P(B) =1, A and B are possible events.Hence A and B are mutually exclusive and complementary events
Therefore the statement is false.
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if you babysit for a year for 10hr every weekday how much did you make?
Answer:
Well, nothing because you didn't say how much money you make a day, a week, or a month.
Step-by-step explanation:
You tried to trick me haha <3
Which of the following equations has a solution of −7?(1 point)
4x−23=5
5x+11=−24
−x+3=−4
−3x−8=−29
Express cos E as a fraction in simplest terms.
Answer: cos E=
E
10
24
C
0
The trigonometric ratio, cos E of the right triangle is 5 / 13.
How to find the angles of a triangle?A triangle is a polygon with three sides. The sum of angles in a triangle is 180 degrees.
A right triangle is a triangle that has one of its angles as 90 degrees.
The sides and angles of a right triangle can be found using trigonometric ratios. The sides of a right triangle base on its sides are as follows;
opposite sideadjacent sidehypotenuse sideTherefore,
cos E = adjacent / hypotenuse
Hence,
let's find the hypotenuse side using Pythagoras theorem,
24² + 10² = c²
c = √576 + 100
c = √676
c = 26
cos E = 10 / 26
Therefore,
cos E = 5 / 13
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The table shows the cost for different numbers of baseballs. Number of Baseballs Cost 3 $12 6 $24 9 $36 12 $48 Question What is the cost per baseball? Answer options with 5 options A. $3 B. $4 C. $7 D. $9 E. $12
Answer:
B. $4
Step-by-step explanation:
The table shows the cost for different numbers of baseballs. Number of Baseballs Cost 3 $12 6 $24 9 $36 12 $48 Question What is the cost per baseball?
A. $3
B. $4
C. $7
D. $9
E. $12
12/3 = 4
24/6 = 4
36/9 = 4
48/12 = 4
Answer: B $4
Step-by-step explanation:
The table shows the cost for different numbers of baseballs. Number of Baseballs Cost 3 $12 6 $24 9 $36 12 $48 Question What is the cost per baseball?
A. $3
B. $4
C. $7
D. $9
E. $12
[tex]\frac{12}{3} = 4\\\\\frac{24}{6} = 4\\ \\\frac{36}{9} =4\\\\\frac{48}{12} = 4[/tex]
Hence, the right answer is B, $4
ray ab bisects CAT. if m< CAT =30 and m
(pls show how i did it)
Translate: "five less than the product of a number and 6 is at least 8"
Answer:
yx6-5= greater than or equal to 8
Step-by-step explanation:
math brain
Given the function defined in the table below, find the average rate of change, in
simplest form, of the function over the interval 5 ≤ x ≤9.
7
8
9
6
x
4
5
f(x)
4
8
16
32
64
medically explained PAINL X
128
Deltal/ath
The average rate of change, in simplest form, is -2/5.
What is average rate ?
Divide the change in y-values by the change in x-values to determine the average rate of change. Identifying changes in quantifiable parameters like average speed or average velocity calls for the knowledge of the average rate of change.
The rate of change of the function is its gradient or slope.
The formula for calculating the gradient of a function is expressed as:
[tex]m=\frac{d y}{d x}=\frac{y_2-y_1}{x_2-x_1}$$[/tex]
Using the coordinate points from the table (0,41) and (15,35)
Substitute the coordinate into the expression:
[tex]$$\begin{aligned}& m=\frac{35-41}{15-0} \\& m=\frac{-6}{15} \\& m=\frac{-2}{5}\end{aligned}$$[/tex]
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Please help meee asap please !!!????
Find the vertex of the graph of 7(x) = 10.25x - 0.75|.
The vertex of the function f(x) = 10.25 |x - 0.75| will be at (0.75, 0).
What is an absolute function?The absolute function is also known as the mode function. The value of the absolute function is always positive.
If the vertex of the absolute function is at (h, k). Then the absolute function is given as
f(x) = | x - h| + k
The absolute function is given as,
f(x) = 10.25 |x - 0.75|
Compare the function f(x) with standard equation, then we have
h = 0.75
k = 0
The vertex of the capability f(x) = 10.25 |x - 0.75| will be at (0.75, 0).
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Angela is following this recipe to make biscuits.
Angela uses 0.9 litres of syrup.
How much margarine is needed in kg?
Recipe: Makes 10 biscuits
150 g margarine
180 g sugar
225 ml syrup
225 g oats
40 g sultanas
The amount of margarine needed in Kg for making biscuits is 0.6kg
What is proportions?In general, the term "proportion" refers to a part, share, or amount that is compared to a whole.
According to the definition of proportion, two ratios are in proportion when they are equal. Two ratios or fractions are equal when an equation or a declaration to that effect is utilized.
How to find the amount of margarine needed in KgThe amount of margarine needed in Kg is calculated using proportions
If 225 ml or soup requires 150 g of margarine then 0.9 liters of soup will require
0.225 l = 0.15 kg
0.9 l = ?
cross multiplying
0.225 * ? = 0.9 * 0.15
? = 0.135 / 0.225
? = 0.6
Angela will require 0.6 kg of margarine
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When solving an equation, Henry gets to the last line of his work and is left with “3 = 3”. What does this mean? * 4 points A. The solution is 3. B. There is only one solution. C. There is no solution. D. There are infinite solutions.
This mean there are infinite solutions.
What does this mean?Each side is equally satisfied in an endless solution. Infinite is a symbol for boundlessness or limitlessness. Typically, the sign "" is used to denote it.
Solving an equation, Henry gets to the last line of his work and is left with “3 = 3”.
Any value for the Variable would make the equation true, according to infinite solutions.
We can tell which instance it is by examining our findings. If both sides of the equal sign end up having the same word,
such as
3=3 or 3x=3x, then. Finite solutions exist.
This mean there are infinite solutions.
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What is the solution of the equation x2 - 12x = 8?
The solution of the equation is x = 6±2√11.
What is a quadratic equation?
The quadratic formula in elementary algebra is a formula that yields the answer to a quadratic problem. In addition to the quadratic formula, other methods of solving quadratic equations include factoring, completing the square, graphing, and others.
Here, we have
Given: x² - 12x = 8
Now, we factorize the given equation and find the solution.
x² - 12x = 8
x² - 12x - 8 = 0
We apply here the quadratic formula.
= (-b ±√b²-4ac)/2
= (12 ±√12²-4×1×(-8))/2
= (12±√144+32)/2
= (12±√176)/2
= (12±4√11)/2
= 6±2√11
Hence, the solution of the equation x² - 12x = 8 is 6±2√11.
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2 Fractions equivalent to 2/6
The fractions 1/12 and 1/4 are equivalent to 2/6.
What is a fraction?A fraction is a numeral that represents a rational number.
Let a and b be two numbers, then their fraction can be represented as a/b.
Given that,
Two fractions are equivalent to 2/6.
There can be many fractions which are equal to 2/6.
Let one fraction is 1/12,
And other fraction is x,
So, according to given condition,
x + 1/12 = 2/6
x = 2/6 - 1/12
x = 3/12
x = 1/4
The required fractions are 1/12 and 1/4.
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Can anyone solve this proof?
The proof for the Base Angles Theorem is explained below:
What is meant by Base Angles Theorem?A triangle's opposite angles are congruent if its two sides are congruent. We shall build the angle bisector through the vertex angle of an isosceles triangle in order to demonstrate the Base Angles Theorem. We created two congruent triangles by building the angle bisector, and then we utilized CPCTC to prove that the base angles are congruent. Base angles: The angles that include the base of an isosceles triangle are known as the "base angles."
Any triangle with at least two congruent sides is said to be isosceles. Legs are the isosceles triangle's congruent sides. The base is the other side. Base angles are the angles formed between the base and the legs.
Given: [tex]\bar{ LM}[/tex]≅ [tex]\bar{LN}[/tex]
Prove: ∠M≅∠N
According to the figure,
Given,
[tex]\bar{ LM}[/tex]≅ [tex]\bar{LN}[/tex]
By the definition of mid-point,
O is the mid-point of [tex]\bar{MN}[/tex]
Now, by joining the two points determine and draw a line of [tex]\bar{LO}[/tex]
Now, Again by the definition of mid-point
[tex]\bar{MO}[/tex]≅[tex]\bar{NO}[/tex]
Now, by using reflexive property,
[tex]\bar{LO}[/tex]≅ [tex]\bar{LO}[/tex]
By SSS rule,
ΔLMO≅ΔLNO
By CPCTC rule,
∠M≅∠N
Hence proved.
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Which equation is enough information to prove that lines m and n are parallel lines cut by transversal p? select three options. a = c a = d c = d b c = 180° b d = 180°
One of the alternatives isc=d because when a line meets two parallel lines, matching angles are created and the identical corners are congruent.
What are parallel lines?Coplanar, straight lines that don't intersect anywhere are considered parallel lines in geometry. Planes in the same three-dimensional space that never cross each other are said to be parallel. Curves that are parallel to one another and maintain a set minimum distance do not touch or intersect. Lines in a plane that consistently have the same separation are said to be parallel. Nothing can cross a parallel line. Lines that cross at a straight angle of 90 degrees are called perpendicular lines.
A = d is also a solution due to vertical angles. Finally, b+d=180 since b+c=180 and c=d, and b+d=180 as a result. The solution is therefore B,C,E, where a=d, c=d, and b+d=180.
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