The value of the function f(x) at x = - 2 is equivalent to 32.
What is a mathematical function, equation and expression?function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis and results of the given problemGiven is that the average rate of change of the function f(x) on the interval -2 is less than or equal to [x] which is less than or equal to 4 is -3.5.
In the range of {- 2 ≤ x ≤ 4}, the rate of change of f(x) is -3.5. This means we can write -
r = {f(4) - f(-2)}/(4 + 2)
f(4) = 11 and [r] = - 3.5. So, we can write -
- 3.5 = {11 - f(-2)}/6
11 - f(-2) = -3.5 x 6
11 - f(-2) = - 21
f(-2) = 11 + 21
f(-2) = 32
Therefore, the value of the function f(x) at x = - 2 is equivalent to 32.
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what led to the development of the aviation industry
a. the development of texas’ wwII aircraft training facilities
b. the placement of the johnson space center
c. the petrochemicals industry
d. texas’ location and climate
Texas' location and climate led to the development of the aviation industry.
What is the significance of Texas in the development of the aviation industry?
The development of the aviation industry in Texas can be attributed to its favorable geographical location and climate. Texas is located in the southern part of the United States, making it a strategic location for air travel between the east and west coasts of the country. Additionally, its warm and dry climate provided ideal conditions for flight testing and training.
Reason what led to the development of the aviation industry :
Texas has a long history of aviation, with the Wright brothers conducting one of their earliest flight demonstrations in the state in 1910. The establishment of military bases during World War II and the subsequent development of aircraft training facilities in Texas further fueled the growth of the aviation industry in the state. Additionally, the placement of the Johnson Space Center in Houston helped to establish Texas as a hub for aerospace research and development. However, it is Texas' favorable location and climate that truly made it a prime location for the aviation industry. Its central location made it a strategic location for air travel and logistics, while its warm and dry climate provided ideal conditions for flight testing and training. Today, Texas remains one of the top states for aviation and aerospace industries, with major airports, aircraft manufacturers, and research institutions located throughout the state.
Therefore, option (d) is correct.
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someone please help me i really neeed it
Answer:
A. First
B.second
C.First
D.Third
E.second
My checking account balance was $443 on February 1st and $872 on February 7th. Show the rate of change
Answer:
$61.29 per day.
Step-by-step explanation:
Checking account balance on February 1st: $443
Checking account balance on February 7th: $872
Difference in balances: $872 - $443 = $429
Number of days between February 1st and February 7th: 7 days
Rate of change = Difference in balances / Number of days
Rate of change = $429 / 7 days
To find the rate of change per day, divide the difference in balances by the number of days:
Rate of change = $429 / 7 days ≈ $61.29 per day
Therefore, the rate of change in your checking account balance during that period was approximately $61.29 per day.
I NEED HELP ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The answers are:
27. P(6) = 0.2 , 28. P(even number) = 0.6 , 29. P(6) = 1/10 , 30. P(even number) = 5/10 = 0.5
The experimental probability of getting a 6 is 0.2, because 2 out of 50 displays were 6s.
The experimental probability of getting an even number is 0.6, because 30 out of 50 displays were even numbers.
The theoretical probability of getting a 6 is 1/10, because there is 1 chance out of 10 that the calculator will display a 6.
The theoretical probability of getting an even number is 5/10, because there are 5 chances out of 10 that the calculator will display an even number.
As you can see, the experimental probabilities are close to the theoretical probabilities. This is because the calculator was programmed to randomly display a digit from 0 to 9, so the results should be evenly distributed. However, there is always some chance of variation, so the experimental probabilities may not be exactly equal to the theoretical probabilities.
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how many $5 and $20 make up $390 if $5 has 8 more then 20
Answer:
12 -20
30 - 5
Step-by-step explanation:
12 × 20 = 240
30 × 5 = 150
240 + 150 = 390
then 5 has 8 more than 20
5 × 8 = 40
30 +8 = 38
38 × 5 = 190
240 + 190 = 430
please mark as brainlist answer
Sarah left Minneapolis heading east on the interstate at a speed of 65 mph. Her sister followed her on the same route, leaving two hours later and driving at a rate of 75 mph. How long, in hours, will it take for Sarah's sister to catch up to Sarah?
Answer:
Step-by-step explanation:
Let's call the time it takes for Sarah's sister to catch up to Sarah "t", measured in hours.
In the 2 hours that Sarah's sister is delayed, Sarah travels a distance of:
d = rt
d = 652
d = 130 miles
Now, both Sarah and her sister are on the same route, and the distance between them is decreasing at a rate of:
relative speed = 75 - 65
relative speed = 10 mph
Using the formula distance = rate * time, we can set up the following equation:
75t = 130 + 10t
Simplifying and solving for t, we get:
65t = 130
t = 2
So it will take Sarah's sister 2 hours to catch up to Sarah.
Solve for the missing variables in the triangle below
I will give a brainless if someone could answer this and explain:)
Answer:
x = -5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Geometry
All angles in a triangle add up to 180°Step-by-step explanation:
Step 1: Set Up Equation
69° + 62° + (x + 54)° = 180°
Step 2: Solve for x
Combine like terms: x + 185 = 180Subtract 185 on both sides: x = -5Answer:
Step-by-step explanation:
x + 54 + 69 + 62 = 180 Every triangle has 180 degrees
x + 185 = 180 Subtract 185 from both sides
x = - 5
The word actually is Brainly, although sometimes I think I am a bit brainless.
I rlly need this badly pls show work :(( (y = mx + b)
Answer:
4) slope (m) = -3, y-intercept(b) = 6
5) slope(m) = 4/5, y-intercept(b) = -3
Step-by-step explanation:
use the equation y = mx + b, m is your slope and b is your y-intercept
The average salary of all assembly-line employees at a certain car manufacturer is $42,000 is it a sample or population
Answer:
Population parameters
Step-by-step explanation:
Population parameters usually find from the average values, in a simple way we can say that finding the average value comes in the Population Parameters.
In the given question, car manufacturing companies provide sample of average.
So, given scenario is a type of "Population parameters".
find two functions f and g
a. f(x) =
b. f(x) =
The functions f and g are:
a. f(x) = 1/x
b. g(x) = x + 2
a) To find two functions f and g such that (fog)(x) = 1/(x + 2), we need to determine how the composition of the two functions f and g produces the given expression.
Let's start by assuming g(x) = x + a, where a is a constant. This means that g(x) adds the constant a to the input x.
Next, let's determine the function f(x) such that (fog)(x) results in the desired expression. We have:
(fog)(x) = f(g(x)) = f(x + a)
b) To simplify the expression 1/(x + 2) and make it match f(g(x)), we can consider f(x) = 1/x.
Substituting the expressions for f(x) and g(x) into (fog)(x), we have:
(fog)(x) = f(g(x)) = f(x + a) = 1/(x + a)
Comparing this with the desired expression 1/(x + 2), we see that a = 2. Therefore, the functions f and g are:
a. f(x) = 1/x
b. g(x) = x + 2
Using these functions, we can verify the composition (fog)(x):
(fog)(x) = f(g(x)) = f(x + 2) = 1/(x + 2)
Thus, (fog)(x) = 1/(x + 2), which matches the desired expression.
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Afiq. Bala and Chin played a game of marbles. Before the game, Bala had fewer marbles than Afig and Chinhad?
- as many marbles as Bala.
After the game, Balahad lost 20% of his marbles to Chinwhile Afig had lost
3
of his marbles to Chin. Chingained 105 marbles at the end of the
game.
(a)How many marbles didChinhave after the game?
(b)After the game, the 3 children each bought another 40 marbles. How manymarbles did the 3 children have altogether?
(a) Chin had 93.1 marbles after the game.
(b) The three children had a total of 271.44 marbles altogether.
Let's break down the problem step by step to find the answers:
Initial marbles
Before the game:
Let's assume Afiq had x marbles.
Bala had 1/6 fewer marbles than Afiq, so Bala had (x - 1/6x) marbles.
Chin had 3/5 as many marbles as Bala, so Chin had (3/5)(x - 1/6x) marbles.
After the game
After the game, Bala lost 20% of his marbles to Chin, so he has 80% (or 0.8) of his initial marbles remaining.
Afiq lost 2/3 of his marbles to Chin, so he has 1/3 (or 0.33) of his initial marbles remaining.
Calculating the marbles
(a) How many marbles did Chin have after the game?
To find Chin's marbles after the game, we add the marbles gained from Bala to Chin's initial marbles and the marbles gained from Afiq to Chin's initial marbles.
Chin's marbles = Initial marbles + Marbles gained from Bala + Marbles gained from Afiq
Chin's marbles = (3/5)(x - 1/6x) + 0.8(x - 1/6x) + 0.33x
Chin's marbles = (3/5)(5x/6) + 0.8(5x/6) + 0.33x
Chin's marbles = (3/6)x + (4/6)x + 0.33x
Chin's marbles = (7/6)x + 0.33x
We are given that Chin gained 105 marbles, so we can equate the equation above to 105 and solve for x:
(7/6)x + 0.33x = 105
(7x + 2x) / 6 = 105
9x / 6 = 105
9x = 105 * 6
x = (105 * 6) / 9
x = 70
Substituting the value of x back into the equation for Chin's marbles:
Chin's marbles = (7/6)(70) + 0.33(70)
Chin's marbles = 10(7) + 0.33(70)
Chin's marbles = 70 + 23.1
Chin's marbles ≈ 93.1
Therefore, Chin had approximately 93.1 marbles after the game.
(b) After the game, the 3 children each bought another 40 marbles. To find the total number of marbles the 3 children have altogether, we need to sum up their marbles after the game and the additional 40 marbles for each.
Total marbles = Afiq's marbles + Bala's marbles + Chin's marbles + Additional marbles
Total marbles = 0.33x + 0.8(x - 1/6x) + (7/6)x + 40 + 40 + 40
Total marbles = 0.33(70) + 0.8(70 - 1/6(70)) + (7/6)(70) + 120
Total marbles = 23.1 + 0.8(70 - 11.7) + 81.7 + 120
Total marbles = 23.1 + 0.8 × 58.3 + 201.7
Total marbles = 23.1 + 46.64 + 201.7
Total marbles = 271.44
The three children had a total of 271.44 marbles altogether.
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Question
Afiq. Bala and Chin played a game of marbles. Before the game, Bala had 1/ 6 fewer marbles than Afig and Chinhad 3/5 as many marbles as Bala.
After the game, Balahad lost 20% of his marbles to Chinwhile Afig had lost
2/3 of his marbles to Chin. Chingained 105 marbles at the end of the
game.
(a)How many marbles didChinhave after the game?
(b)After the game, the 3 children each bought another 40 marbles. How manymarbles did the 3 children have altogether?
PLEASE HELP
A bag hes 10 red marbles, 3 green marbles,
7 yelow marbles, and 5 blue merbles. What is
the probability of crowing a red marble and
then g, blue, marble without replacing the first?
Answer:
\(\frac{3}{5}\)
Step-by-step explanation:
Probability is the chance of an event happening. One finds the probability of an event by using the following general formula,
\(\frac{desired}{total}\)
In this case, the desired outcome is pulling whether a red or blue marble from the bag, the desired equals the sum of the number of red and blue marbles.
(red) + (blue)
= 10 + 5
= 15
The total number of marbles is the sum of all the number of marbles in the bag.
(red) + green) + (yellow) + (blue)
= 10 + 3 + 7 + 5
= 25
Now substitute these values into the formula to find the probability, then simplify,
\(\frac{15}{25}\)
Divide both the numerator and denominator by (5),
\(\frac{3}{5}\)
Help help help help math math
Answer:
Your answer is D.Divide
Step-by-step explanation:
Please mark as brainliest
Hope you have a great day!
What is the slope of the line that is paralell to the line y=3/4 x +2
Answer:
m (parallel) = 3 /4
Step-by-step explanation:
on the graph Y will start on two
PLS HELP QUICK! Thanks
Answer:
dddd
Step-by-step explanation:
The dimensions of a rectangular prism are shown below:
: 2
Length: 4 feet
Width: 1 foot
15
Height: 4 feet
The lengths of the sides of a small cube are a foot each.
Part A: How many small cubes can be packed in the rectangular prism? Show your work. (5 points)
Part B: Use the answer obtained in part A to find the volume of the rectangular prism in terms of the
small cube and a unit cube. (5 points)
Answer:
16
Step-by-step explanation:
plss help me for branleist
Answer: x=67
Step-by-step explanation:
All of the angles add up to 180 for a triangle
38 + 75 + x = 180 >combine like terms (the numbers)
113 + x = 180 >subtract 113 from both sides
x=67
Answer:
x = 67°Step-by-step explanation:
We know that,
\( \sf \: By \: Using \: Angle \: sum \: property \: of \: triangle\)
\( \large \sf \: → x +38° + 75° = 180°\)
\( \large \sf \: → x + 113 = 180°\)
\( \large \sf→ x = 180°- 113°\)
\( \boxed{\large \bf→ x = 67° }\)
Pablo used a total of 5 3/4 gallons of gas while driving his car. Each hour he was driving, he used 5/6 gallons of gas. What was the total number of hours he was driving? Write your ans
PLEASE, SOMEONE, ANSWER THESE PLEASE THE ONE WITH THE CORRECT ANSWER WILL GET A LIKE AND THE CROWN BOTTON
Answer:
20,90 for the first one
50% for second one
Evaluate the given expression for x=5
x² + 3x - 2
(5)² + 3 × 5- 2
25 + 15 - 2
40 - 2
38...
Consider the equation of a circle x^2-2x+y^2-4y-4=0. If the line 2x-y+a=0 is its diameter. Then find the value of a.
Answer:
a=0
Step-by-step explanation:
x²-2x+y²-4y-4=0
(x²-2x+1)+(y²-4y+4)-9=0
(x-1)² + (y-2)² = 3²
Center: (1,2) radius: 3
(1,2) on line 2x-y+a=0
2*1 - 2 + a = 0
a = 0
The area of a rectangular wall in a classroom is 133 ft.². Its length is 2 feet shorter than three times its width. Find the length and width of the wall of the classroom.
ANSWER
\(width=7ft;\text{ }length=19ft\)EXPLANATION
Let the length of the rectangle be L.
Let the width of the rectangle be W.
The length of the classroom is 2 feet shorter than three times its width. This implies that:
\(L=3W-2\)The area of a rectangle is given by:
\(A=L*W\)Hence, by substituting the given values into the equation, we have that:
\(\begin{gathered} A=(3W-2)*W \\ 133=3W^2-2W \\ \Rightarrow3W^2-2W-133=0 \end{gathered}\)Solve the quadratic equation above by applying the quadratic formula:
\(W=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)where
a = 3, b = -2, c = -133
Therefore:
\(\begin{gathered} W=\frac{-(-2)\pm\sqrt{(-2)^2-(4*3*-133)}}{2(3)} \\ W=\frac{2\pm\sqrt{4+1596}}{6}=\frac{2\pm\sqrt{1600}}{6} \\ W=\frac{2\pm40}{6} \\ W=\frac{2+40}{6};\text{ }W=\frac{2-40}{6} \\ W=\frac{42}{6};\text{ }W=\frac{-38}{6} \\ W=7;\text{ }W=-\frac{19}{3} \end{gathered}\)Since the width of a rectangle cannot be negative, the width of the rectangle is:
\(W=7\text{ }ft\)To find the length of the rectangle, substitute the value of W into the equation for L:
\(\begin{gathered} L=3(7)-2=21-2 \\ L=19\text{ }ft \end{gathered}\)Hence, the width of the rectangle is 7 ft and its length is 19 ft.
Which graph shows the greatest integer function?
Answer:
the step curveThe greatest integer function graph is known as the step curve because of the step structure of the curve. Let us plot the greatest integer. First, consider f(x) = ⌊x⌋, if x is an integer, then the value of f will be x itself. If x is a non-integer, then the value of x will be the integer just before x.
O GRAPHS AND FUNCTIONSFinding inputs and outputs of a two-step function that models a...
Given the function:
\(A(t)=256-16t\)Where A is the amount of money (in dollars) Diane has left in her account after t trips on the toll roads.
(a)
After 8 trips on the toll roads (t = 8):
\(\begin{gathered} A(8)=256-16(8)=256-128 \\ \\ \therefore A(8)=\$128 \end{gathered}\)(b)
If her account is empty:
\(\begin{gathered} A(t)=0 \\ \\ \Rightarrow256-16t=0 \end{gathered}\)Solving the equation for t:
\(\begin{gathered} 256=16t \\ \\ \therefore t=16\text{ trips} \end{gathered}\)$1,500 at 7% compounded annually for 3 years
The amount on the interest is $1837.7
How to determine the amount on the interestFrom the question, we have the following parameters that can be used in our computation:
Principal, P = 1500
Rate, r = 7%
Time, t = 3 years
Using the above as a guide, we have the following:
Amount = P * (1 + r)^t
So, we have
Amount = 1500 * (1 + 7%)^3
Evaluate
Amount = 1837.7
Hence, the amount is $1837.7
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Calculator
B(1,5)
5
What is the area of
strapezoid ABCD
3
A(-3,2)
2
Enter your answer as a decimal or whole number in the box. Do
not round at any steps.
1
0
-5
4
3
-2
1
1.
2
3
4
6
units
D(
0-2)
-
C(7-3)
-5
1
2
3
4
5
Next >
9514 1404 393
Answer:
37.5 square units
Step-by-step explanation:
When the points are plotted on a graph, you can see that the sides of the trapezoid are the hypotenuse of a 3-4-5 right triangle (or multiple thereof). The grid lines make up the legs of the triangle, and the edge of the figure makes up the hypotenuse. Side BC is clearly twice as long as side AD.
The area formula for a trapezoid applies:
A = 1/2(b1 +b2)h
A = 1/2(5 +10)(5) = 1/2(75) = 37.5 . . . . square units area
In a data distribution that is skewed left.
The median will be greater than the mean in a left-skewed distribution
We have,
In statistics, skewness is a measure of the asymmetry of a probability distribution around its mean.
A distribution is said to be skewed left if it has a long tail on the left side and the bulk of the data is on the right side.
When the data is skewed left, it means that the distribution is being pulled towards the left side.
This is because there are a few extreme values on the left side that are pulling the mean in that direction.
In contrast, the median is the middle value of the dataset, and it is not influenced by outliers.
For a left-skewed distribution,
The median will be greater than the mean because the mean is being pulled towards the left by the few extreme values.
In a data distribution that is skewed left, the mean will be less than the median.
This is because the mean is sensitive to outliers and is pulled towards the direction of the skewness, while the median is not affected by extreme values and is a more robust measure of central tendency.
Therefore,
The median will be greater than the mean in a left-skewed distribution
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28. If mzQ0S = 46, m/POR = 61,
and m/POQ = 28, what is m
กร
The value of angle ROS is 225°
How to calculate the value?It should be noted that the angles at a point are equal to 360°
Therefore,
QOS + POR + POQ + ROS = 360°
46° + 61° + 28° + ROS = 360°
ROS + 135° = 360°
ROS = 360° - 135°
ROS = 225°
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The range of both functions will be ?
A)the set of natural numbers
B)the set of integers
C)all real numbers
D)the set of whole numbers
E)the set of rational numbers
Answer:
it is b
bbbbbbb!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Step-by-step explanation:
Select the number that round to 387.4 when rounded to the nearest tenth.
A. 387.461
B. 387.344
C. 387.309
D. 387.352
E. 387.779
Answer:
D
Step-by-step explanation:
When rounding, the number 5 is rounded up. So the number 387.352 will be rounded up 387.4. Other options are not suitable. Correct answer is "D"
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