The domain is:
D: {-4, 5, 6, 8}
The range is:
R: {-4, 3, 5}
And yes, the relation is a function.
How to determine the domain and range?
For a relation that maps elements x into elements y (in the form (x, y)), we define the domain as the set of the inputs (values of x) and the range as the set of the outputs (values of y).
Here our relation is defined by: {(6,3), (8,5), (-4,-4), (5,5)}
The domain is the set of the first values of each pair, so we have:
D: {-4, 5, 6, 8}
The range is the set of the second values of each pair:
R: {-4, 3, 5}
Now, is this a function?
Yes, it is a function, because each input is mapped into only one output.
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A 15-inch by 8-inch tablecloth is placed on a circular table. Each of the four corners of the tablecloth touch the edge of the table. Determine the radius of the table
Answer:
radius = 8.5 in
Step-by-step explanation:
the diagonal of the tablecloth will be the diameter of the table.
diagonal² = 15² + 8² = 225 + 64 + 289
diagonal = √289 = 17 in
radius = 17/2 = 8.5 in
The diameter of the table is 17 inches (0.43 m). Then the radius of the circular table will be 8.5 inches (0.22 m).
What is a circle?The radius of a circle is the distance between the center and the circumference.
It is a polygon with four sides. A rectangle's opposite sides are parallel and equal, and each angle is 90 degrees.
A 15-inch by 8-inch tablecloth is placed on a circular table.
Each of the four corners of the tablecloth touch the edge of the table.
That is shown in the diagram.
The diameter d is measured by the Pythagoras theorem.
d² = 15² + 8²
d² = 225 + 64
d² = 289
d² = 17²
d = 17 inches
The diameter of the circle is 17 inches.
The radius is the half of the diameter. Then the radius will be
r = d / 2
r = 17 / 2
r = 8.5 inches
Thus, the radius of the circular table will be 8.5 inches.
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The lengths of the 2 legs of right triangle AABC shown
below are given in inches. The midpoint of AB is how
many inches from A?
A. 16
B. 20
C. 21
D. 28
E. 40
Answer:
E. 40
Step-by-step explanation:
First, we can start out by stating that this is a right triangle, since it has a right angle, shown by the marker square in the corner of the triangle. The x part, is called the hypotenuse. When finding the value of the hypotenuse, we use a thing called the Pythagorean Theorem. This theorem is :
a^2 + b^2 = c^2
a is one side length, and b is the other. c is the hypotenuse. To find x, the hypotenuse, we simply plug in the values, and solve.
24^2+32^2 = c^2
576 + 1024 = c^2
1600 = c^2
40 = c
The answer is E. 40.
Find the value of x
A.) x=1
B.) x=4
Answer:
2 (C)
Step-by-step explanation:
The "bisector" of the two sides is always equal to 1/2 of the base so...
2(3x-1) = 2x+6
Then, we simply btoh sides...
6x-2 = 2x+6
Then, we bring all the variables to one side and the numbers to the other..
4x = 8
Finally, we simplify to get our answer...
x=2 (C)
find the sum
-84 + (-11)
Answer:
-84+(-11)= -95
-84 + (-11) = -84 - 11 = -95
By the commutative property, adding a negative number is the same as subtracting that number as a positive; therefore, something + (-11) = something - 11. After changing the equation from -84 + (-11) to -84 - 11, we use regular addition properties, adding the tens place and ones place to get -95.
What is 7/9 devided by 1/3
Answer:
\(\frac{7}{3}\)
Step-by-step explanation:
\(\frac{7}{9}\) ÷ \(\frac{1}{3}\) = Flip the second fraction over (reciprocal) and multiply
\(\frac{7}{9}\) x \(\frac{3}{1}\) = Multiply straight across. Numerators then denominators.
\(\frac{7}{9}\) x \(\frac{3}{1}\) = \(\frac{21}{9}\) = \(\frac{7}{3}\) Reduce.
4. (a)(i)Show that log4x=2log16x. (ii)Show that log x=3logb³ x. (iii) Show that log₂x=(1+log₂3)logix.
that log4x=2log16x. (ii)Show that log x=3logb³ x. (iii) Show that log₂x=(1+log₂3)logix
what are the missing numbers ?
solve for c.express your answer as a proper or improper fraction in simplest terms.
-7/3=2/3c-5/8
Answer:
c = -41/16
Step-by-step explanation:
You want to solve the 2-step linear equation -7/3=2/3c-5/8.
As isThe two steps for such an equation are ...
Step 1 - add the opposite of the constant on the side with the variable term.
-7/3 +5/8 = 2/3c -5/8 +5/8
-41/24 = 2/3c . . . . . . . . . . . . . simplify
Step 2 - multiply by the inverse of the coefficient of the variable.
(-41/24)(3/2) = (2/3c)(3/2)
-41/16 = c
Eliminate fractions first
Some folks like to solve equations like this by eliminating fractions as a first step. Here, that can be accomplished by multiplying the equation by 24 (the least common denominator).
(-7/3)(24) = (2/3c)(24) -(5/8)(24) . . . multiply the equation by 24
-56 = 16c -15 . . . . . . . simplify; fractions are gone
-41 = 16c . . . . . . . . . step 1, add the opposite of the unwanted constant
-41/16 = c . . . . . . . . step 2, divide by the coefficient of the variable
A quantity of food will last 8 people for 18 days. How long will the food last 2 people?
Answer: 72 days
Step-by-step explanation:
STEP ONE: Find the total amount of food
Total days = 18 days
Total people = 8 people
Total food = days × people
Total food = 18 × 8
Total food = 144
STEP TWO: Find the days that would last for 2 people
Total people = 2 people
Total food = 144 units
Total days = food ÷ people
Total days = 144 ÷ 2
Total days = \(\boxed{72days}\)
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Please let me know if you have any questions
\( \sqrt{20} \times \sqrt{15} \times \sqrt{3} \)
can you help me solve it
if f(x)=sqrt x which equation describes the graphed function?
A. g(x) = f(-x) + 2
B. g(x) = -f(x + 2)
C. g(x) = -f(x) + 2
D. g(x) = f(-x + 2)
The equation that describes the graphed function is Option C: g(x) = -f(x) + 2.
The given function is f(x) = √x, which represents the square root function. To determine which equation describes the graphed function, we need to analyze the transformations applied to the original function.
Option A, g(x) = f(-x) + 2:
This equation represents reflecting the graph of f(x) across the y-axis (due to the negative sign in front of x) and then shifting it vertically upward by 2 units. However, this transformation does not match the graph of f(x) = √x.
Option B, g(x) = -f(x + 2):
This equation represents taking the negative of the original function f(x) and shifting it horizontally left by 2 units. This transformation does not match the graph of f(x) = √x.
Option C, g(x) = -f(x) + 2:
This equation represents taking the negative of the original function f(x) and shifting it vertically upward by 2 units. This transformation matches the graph of f(x) = √x.
Option D, g(x) = f(-x + 2)
This equation represents reflecting the graph of f(x) across the y-axis (due to the negative sign in front of x) and shifting it horizontally right by 2 units. This transformation does not match the graph of f(x) = √x.
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Please Solve the Initial value
The solution to the initial value problem is:
y(x) = √{16}/{8x-1}} + 3e^{-2x} + 2√{2} + 1
How did we get the value?The solution to the initial value problem is given by:
y(x) = √{16}/{8x-1}} + 3e^{-2x} + C
Where C is the constant of integration. To find C, we can use the initial condition y(0) = 2√{2}:
y(0) = √{16}/{8(0)-1}} + 3e^{-2(0)} + C = 2√{2}
Solving for C:
C = 2√{2} - √{16}/{-1}} - 3 = 2√{2} + √{16} - 3 = 2√{2} + 4 - 3 = 2√{2} + 1
So the solution to the initial value problem is:
y(x) = √{16}/{8x-1}} + 3e^{-2x} + 2√{2} + 1
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What are the coordinates of the red dot?
O (2,5)
10
(5,2)
O (-5,2)
-5
0 (-5,-2)
Explain your thinking.
K
-10
-5
0
6
10
✓
Share with Class
- 10
Answer:
(5, 2)
Step-by-step explanation:
Coordinates of a point in a coordinate plane is usually written as (x, y). This point contains the value of x and its corresponding y value.
The red dot on the plane given, if you trace it down to the x-axis, it is at x = 5, while if you trace it horizontally against the y-axis, you'd have y = 2.
Therefore, the coordinates of the red dot is (5, 2).
Select all the fractions that are equivalent to a whole number.
1. 9/3
2. -16/8
3. 7/0
4. -5/3
5. 0/5
On one day at a local minigolf course, there were 414 customers who paid a total of $3,780. If the cost for a child is $9 per game and the cost for an adult is $12 per game, write a system of equations to model this scenario, where x represents the number of children and y represents the number of adults who played that day.
x + y = 414
12x + 9y = 3780
x + y = 414
9x + 12y = 3780
x + y = 3780
12x + 9y = 414
x + y = 3780
9x + 12y = 414
These two equations form a system that can be solved to find the values of x and y, representing the number of children and adults, respectively, who played on that day.
The correct system of equations to model this scenario is:
x + y = 414 (Equation 1)
9x + 12y = 3780 (Equation 2)
In this system, x represents the number of children and y represents the number of adults who played that day.
Equation 1 represents the total number of customers, which is 414. It states that the sum of the number of children (x) and the number of adults (y) is equal to 414.
Equation 2 represents the total cost of the games played. Since the cost for a child's game is $9 and the cost for an adult's game is $12, we multiply the number of children (x) by $9 and the number of adults (y) by $12. The equation states that the total cost, which is $3780, is equal to the sum of these individual costs.
Together, these two equations form a system that can be solved to find the values of x and y, representing the number of children and adults, respectively, who played on that day.
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Which statement is true about a line and a point? (1 point) a A point and a line have length as a dimension to measure. b A point is a location, and a line has many points located on it. c A line and a point cannot lie on the same plane. d A line and a point cannot be collinear.
Answer: B.A point is a location, and a line has many points located on it.
Step-by-step explanation:
In how many ways can a quality-control engineer select a sample of3 transistors for testing frm a batch of 100 transistors?
Answer:
161700 ways.
Step-by-step explanation:
The order in which the transistors are chosen is not important. This means that we use the combinations formula to solve this question.
Combinations formula:
\(C_{n,x}\) is the number of different combinations of x objects from a set of n elements, given by the following formula.
\(C_{n,x} = \frac{n!}{x!(n-x)!}\)
In this question:
3 transistors from a set of 100. So
\(C_{100,3} = \frac{100!}{3!(100-3)!} = 161700\)
So 161700 ways.
Tasha used the pattern in the table to find the value of 4 Superscript negative 4.
Powers of 4
Value
4 squared
16
4 Superscript 1
4
4 Superscript 0
1
4 Superscript negative 1
One-fourth
4 Superscript negative 2
StartFraction 1 Over 16 EndFraction
She used these steps.
Step 1 Find a pattern in the table.
The pattern is to divide the previous value by 4 when the exponent decreases by 1.
Step 2 Find the value of 4 Superscript negative 3.
4 Superscript negative 3 = StartFraction 1 Over 16 EndFraction divided by 4 = StartFraction 1 Over 16 EndFraction times one-fourth = StartFraction 1 Over 64 EndFraction
Step 3 Find the value of 4 Superscript negative 4.
4 Superscript negative 4 = StartFraction 1 Over 64 EndFraction divided by 4 = StartFraction 1 Over 64 EndFraction times one-fourth = StartFraction 1 Over 256 EndFraction
Step 4 Rewrite the value for 4 Superscript negative 4.
StartFraction 1 Over 256 EndFraction = negative StartFraction 1 Over 4 Superscript negative 4 EndFraction
The value of 4 Superscript negative 4 is negative StartFraction 1 Over 4 Superscript negative 4 EndFraction.
In the given table, Tasha observed a pattern in the powers of 4. When the exponent decreases by 1, the previous value is divided by 4. Using this pattern, she determined the values for 4 squared, 4 Superscript 1, 4 Superscript 0, 4 Superscript negative 1, and 4 Superscript negative 2.
To find the value of 4 Superscript negative 3, she divided the previous value (StartFraction 1 Over 16 EndFraction) by 4, resulting in StartFraction 1 Over 64 EndFraction.
Similarly, for 4 Superscript negative 4, she divided the previous value (StartFraction 1 Over 64 EndFraction) by 4, yielding StartFraction 1 Over 256 EndFraction.
Finally, to rewrite the value for 4 Superscript negative 4, she expressed it as negative StartFraction 1 Over 4 Superscript negative 4 EndFraction.
Therefore, the value of 4 Superscript negative 4 is negative StartFraction 1 Over 4 Superscript negative 4 EndFraction, which simplifies to StartFraction 1 Over 256 EndFraction
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I need help pleaseee
Answer:
7
Step-by-step explanation:
refer to solution in picture
A shirt is on sale for 20% off Sandy pay eight dollars for the shirt what was the shirts regular price
Answer:
10%
Step-by-step explanation:
We know that if a shirt is on sale for 20% off that means that the shirt's value is 80% of what it used to be.
We can divide 80% by 8 to find out how much 10 dollars is, so you do 8/8=1. Then you do 1*10 (or 10%*10) = $10 (or 100%)
Tell me if you have any questions
Grant orders a $55 bouquet of flowers to be delivered to his sister. He pays the bill plus a 6.5% sales tax and a 15% tip on the total cost including tax. He also pays a $10 delivery fee that is charged after the tax and tip. How much change does he receive to the nearest cent, if he pays the delivery driver with a $100 bill?
The change that Grant received to the nearest cent after giving the delivery driver with a $100 bill is $ 32.6.
This is a question of percentages.
Given that:-
Price of bouquet of flowers = $ 55
Sales tax % = 6.5 %
Tip % = 15 %
Delivery fee= $10
We have to find the change that Grant received to the nearest cent after giving the delivery driver with a $100 bill.
Sales tax = (6.5/100)*55 = $3.575
$55 + $3.575 = $58.575
Tip = (15/100)*58.575 = $ 8.78625
Total money paid by Grant = 55 + 3.575 + 8.78625 = $ 67.36125 ≈ $ 67.4
Hence,
Change received by Grant = 100 - 67.4 = $ 32.6
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A medical researcher wants to determine whether exercise can lower blood pressure. At a health fair, he measures the blood pressure of 100 individuals, and interviews them about their exercise habits. He divides the individuals into two categories: those whose typical level of exercise is low, and those whose level of exercise is high.
a. Is this a randomized experiment or observed study?
b. The subjects in the low-exercise group had considerably high blood pressure on the average, then subjects in the high-exercise group. The researcher concluded that exercise decreases blood pressure. Is the conclusion well justified? Explain.
The study for given sample space is not clear whether this is a randomized experiment or an observational study.
What exactly is a sample space?
In probability theory, a sample space is the set of all possible outcomes of a random experiment or process. It is a fundamental concept in probability theory because it defines the range of all possible outcomes that could occur in an experiment. For example, if you flip a coin, the sample space consists of two possible outcomes: heads or tails. Similarly, if you roll a die, the sample space consists of six possible outcomes: 1, 2, 3, 4, 5, or 6. The sample space can be represented using set notation, listing all the possible outcomes, or using a tree diagram to visualize the possible outcomes and their probabilities.
Now,
a. Based on the given information, it is not clear whether this is a randomized experiment or an observational study. If the researcher randomly assigned individuals to either the low-exercise or high-exercise group and then measured their blood pressure, it would be a randomized experiment. If the researcher simply observed individuals in each group and then compared their blood pressure levels, it would be an observational study.
b. The conclusion that exercise decreases blood pressure cannot be well justified based on the given information. The study suffers from several potential confounding factors, which could have influenced the results. For example, the individuals in the low-exercise group might have had higher stress levels or poorer diet, which could have affected their blood pressure. Therefore, it is not possible to conclude that the difference in blood pressure levels between the two groups was solely due to their exercise habits. To establish a causal relationship between exercise and blood pressure, a well-designed randomized controlled trial would be necessary, controlling for potential confounding factors.
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1/4 written as a percentage
Step-by-step explanation:
1/4 in percentage
= 1/4 * 100%
= 25%
Answer:
4/4=100%
1/4=100÷4
= 25%
Help help help please in a hurry!!!!!!!!!!!!!!!!!!!
Answer:D
Step-by-step explanation:
please mark brainliest
no links Which of the following grids correctly graphs the points
Answer:
Question not written properly. Please write the full question with every detail possible not some shorten question
Step-by-step explanation:
What is -9 as a fraction?
Answer:
\(-\frac{9}{1}\)
Step-by-step explanation:
Its just the same way as making positive 9
a fraction, but just add the negative sign.
Hope this helps :))
Which expression is equivalent to 7u+4u?
Answer:
11u
Step-by-step explanation:
Add 7u and 4u
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Work out the length x. 14 cm 7 cm Х
Answer:
If you want the area of something with the sides 14cm and 7cm then it would be 98 cm.
Step-by-step explanation:
Area = length * width
Area = 14 cm * 7 cm
Area = 98 cm
What is this area of this rectangle
Step-by-step explanation:
To find the area of a rectangle, we simply need to multiply its length by its width. The area is simply the width of a rectangle times height. Area = h × h, Area = h2. Hence for a square, the area is the square of its sides.
Assume you have applied for two scholarships, a Merit scholarship (M) and an Athletic scholarship (A). The probability that you receive an Athletic scholarship is 0.18. The probability of receiving both scholarships is 0.11. The probability of getting at least one of the scholarships is 0.3. Let M denote the event that you will receive a Merit scholarship. Let A denote the event that you will receive an Athletic scholarship. Answer questions 11-15. What is the probability that you will receive a Merit scholarship
Answer:
The probability of obtaining a Merit Scholarship = 0.23
Step-by-step explanation:
From the given information:
The probability of obtaining a merit scholarship P(A) = 0.18
The probability of obtaining both P(A ∩ M) = 0.11
The probability of getting at least one P(A ∪ M) = 0.3
The objective is to determine the probability of obtaining a Merit Scholarship.
So, as given:
if M represents Merit Scholarship and A represent Athletic Scholarship,
the probability of obtaining a Merit Scholarship is as follows;
P(M) = P(A ∪ M) + P(A ∩ M) - P(A)
P(M) = 0.3 + 0.11 - 0.18 = 0.23
P(M) = 0.23