PLEASE SHOW WORK
Find the average rate of change for the quadratic function, f(x) = 2x2 +5, over the interval of [-2, 1].
Average rate of change:
Answers
Answer:
The units on a rate of change are “output units per input units.” The average rate of change between two input values is the total change of the function values (output values) divided by the change in the input values.
im lazy :)
Related Questions
An icosahedron has twelve faces, the most of any Platonic solid.
Answers
Answer:
Step-by-step explanation:
True
If <2 = <6, which must be true about <2?
Answers
Answer:
If 2 6, which must be true about 2? 2 is complementary to 5.
Step-by-step explanation:
Welcome for the answer. This answer is for good intentions only, report if necessary. Thank you and have a good rest of your day!8) Determine the surface area of the figure.
Answers
Answer:
all you do is add all the numbers of the fac es together boom
Step-by-step explanation:
An equation is shown, where 0 < x < 90 and 0
cos (x) = sin(yº)
Create an expression for x in terms of y.
Answers
The expression of x in terms of y for the case when cos(xº) = sin(yº) is x° = cos^(-1)sin(y°)
What are the six trigonometric ratios?Trigonometric ratios for a right angled triangle are from the perspective of a particular non-right angle.
In a right angled triangle, two such angles are there which are not right angled(not of 90 degrees).
The slant side is called hypotenuse.
From the considered angle, the side opposite to it is called perpendicular, and the remaining side will be called base.
From that angle (suppose its measure is θ),
[tex]\sin(\theta) = \dfrac{\text{Length of perpendicular}}{\text{Length of Hypotenuse}}\\\cos(\theta) = \dfrac{\text{Length of Base }}{\text{Length of Hypotenuse}}\\\\\tan(\theta) = \dfrac{\text{Length of perpendicular}}{\text{Length of base}}\\\\\cot(\theta) = \dfrac{\text{Length of base}}{\text{Length of perpendicular}}\\\\\sec(\theta) = \dfrac{\text{Length of Hypotenuse}}{\text{Length of base}}\\\\\csc(\theta) = \dfrac{\text{Length of Hypotenuse}}{\text{Length of perpendicular}}\\[/tex]
For this case, we have to express x in terms of y for [tex]\cos(x^\circ) = \sin(y^\circ)[/tex]
Since 0 < x < 90, and 0 < x < 90 so taking inverse cosine gives:
[tex]x^\circ= \cos^{-1}(\sin(y^\circ))[/tex]
Thus, the expression of x in terms of y for the case when cos(xº) = sin(yº) is [tex]x^\circ= \cos^{-1}(\sin(y^\circ))[/tex]
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If you actually know the answer plz give an explanation to the answer so i know you aren't just answering for points, please plase help this is due before 12:00!!
Answers
Answer:
D
Step-by-step explanation:
The estimated probability of selecting a green marble is 2/25 or 8%, so D is the incorrect statement.
If LJK ~ PQN, find x.
Answers
Answer:
x = 33
Step-by-step explanation:
What is the possible number of solutions to a system of linear equations in three variables? Select the three
correct answers.
a) 4
b) 1
c) infinitely many
d) 3
e) 2
Answers
a and d and ehxgfhsy eyehe74vd surge
5. How much should Chantal budget per month to make sure she has enough
money to pay her car expenses? Last year she had variable expenses of
$2,125.10 and fixed expenses of $4,176.43
Answers
Answer:
$525.13
Step-by-step explanation:
cost per month = total expenses / months in a year
total expenses = fixed cost + variable cost
$2,125.10 + $4,176.43 = $6,301.53
cost per month = $6,301.53/ 12 = $525.13
a new desk cost (d) dollars. A bookshelf cost $114 less than the desk. A new lamp cost twice as much as the bookshelf
Answers
Answer: what are you looking for (d)? there isnt enough info
Step-by-step explanation:
Thirty Security personnel need to be hired they will work one week on and one week off for 20 hours per week if they are paid $15 an hour what is the security labor cost for a four week month
Answers
Answer:
$600
Step-by-step explanation:
1 month = 4 weeks
They are 2 weeks on and 2 weeks off.
Find out how much they get paid for 1 week.
20 x 15 = 300
300 x 2 = 600 (2 weeks)
2. The numbers from 101 to 150 are written as, 101102103104105.146147148149150.
What will be the remainder when this total number is divided by 3?
Answers
Answer:
We know that a number is divisible by 3 if the sum of its digits is a multiple of 3.
if the sum is a multiple of 3 + 1 (like 3*n + 1) the remainder is 1
if the sum is a multiple of 3 + 2 (like 3*n + 2) the remainder is 2.
Then we need to find the sum of all the single digits in the number:
101102103104...149150
the sum of all the single digits is:
( 1 + 1) + (1 + 2) + (1 + 3) + ... + (1 + 4 + 9) + ( 1 + 5)
The method i used is:
(from 101 to 110)
first we sum the hundreds digit 10 times, and then we add the unit digits for each case, this is:
1*10 + (1 + 2+ 3 + 4+ 5+ 6+ 7+ 8 + 9 + 1) = 10 + 46
From (111 to 119)
first we add the sum of the hundreds and tens digits 10 times, and then the units:
2*9 + ( 1 + 2+ 3 + 4+ 5+ 6+ 7+ 8 + 9 )
now if we also add the number 120 (so we have the range 111 to 120)
the sum becomes:
2*9 + ( 1 + 2+ 3 + 4+ 5+ 6+ 7+ 8 + 9 ) + 1 + 2
2*10 + (1 + 2+ 3 + 4+ 5+ 6+ 7+ 8 + 9 + 1 ) = 20 + 46
You already can see the pattern here.
in the range from (121 to 130) we will have the sum equal to 30 + 46
in the range from (131 to 140) we will have the sum equal to 40 + 46
in the range from (141 to 150) we will have the sum equal to 50 + 46
Then the total sum is:
(10 + 20 + 30 + 40 + 50) + 5*46 = 380
We know that 380 is multiple of 3 (because 3 + 8+ 0 = 12)
Then the remainder is 0.
Will award brainliest to correct answer!
Given square ABCD. Two congruent i s o - Δ's ABP and BCQ are constructed with bases AB and BC. Each of these triangles has vertex angle of 80°. Point P lies in the interior of the square, while point Q lies outside of the square. Find the angle measure between PQ and BC.
Thanks in advance :D
Answers
Let's begin noting that a triangle is isosceles if and only if two of its angles are congruent. We can thus find the angle <ABP, recalling that the sum of the interior angles of a triangle is equal to 180°.
[tex] \angle \: ABP = \frac{180 - 80}{2} = 50 \degree[/tex]
Finally, let point K be the intersection between segments BC and PQ, and let's note that the triangle PQB is a right isosceles triangle, since all the angles in a square are equal to 90°, and the two triangles APB and BQC are congruent.
Therefore, the angle BKQ is equal to 180-50-45=85°.
Of course angle BKP=180-85=95°.
Hope this helps :)
A sport statistician gathered data on the number of points scored in each game by high school basketball players across the country. She found a population mean of 20.15 and a standard deviation of 3.7. Each sample size was 20 players. By the central limit theorem, which interval do 68% of the sample means fall within?
A.
19.96 and 20.34
B.
18.50 and 21.81
C.
17.67 and 22.63
D.
19.32 and 20.98
Answers
For a sample size of 20 players, 68% of the sample means fall within 19.32 and 20.98
What is empirical rule?Empirical rule states that for a normal distribution, 68% of the values are within one standard deviation from the mean, 95% of the values are within two standard deviation from the mean and 99.7% of the values are within three standard deviation from the mean.
For a population mean of 20.15 and a standard deviation of 3.7:
68% are within μ ± σ/√n, hence:
68% = 20.15 ± 3.7/√20 = (19.32, 20.98)
For a sample size of 20 players, 68% of the sample means fall within 19.32 and 20.98
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What's the value of x
Answers
180-100=80
The list of accounts of Guardian Company contained the following information:
Accounts Amount $
Sales 750,000
Sales Returns and Allowances 20,000
Rent Expense 5,000
Purchases 600,000
Sales Discounts 7,000
Purchase Returns and Allowances 25,000
Cost of Goods Sold ?
Interest Revenue 15,000
Sales commission 15,000
Purchase Discounts 11,000
Interest Expense 10,000
Freight-out 2,000
Store Salaries Expense 50,000
Freight-in 19,000
Utilities Expense 28,000
Depreciation Expense 7,000
Dividend revenue 5,000
Beginning inventory 45,000
Rent Revenue 10,000
Ending inventory 55,000
Lawsuit defrayal expense 8000
Accumulated depreciation 15000
Instruction:
Use the above information to prepare a multiple-step income statement for the year ended
December 31, 2019. (Show the calculation of COGS)
Answers
Answer:
sorry I don't know the answer ,but I want to ask u something ,r u a accounting student if yes please comment.i am also a accounting student but on learning stage so I don't know the answer,
8) Do these ratios form a proportion?
20 pedestrians : 5 years
7 pedestrians : 1 year
Please provide explanation.
Answers
Answer:
Since the division of the number of pedestrians by the number of years yields different values for each ratio, these ratios do not form a proportion.
Step-by-step explanation:
They will form a proportion if the division of the number of pedestrians by the number of years yields the same results.
20 pedestrians : 5 years
20/5 = 4 pedestrians per year.
7 pedestrians : 1 year
7/1 = 7 pedestrians per year.
Since the division of the number of pedestrians by the number of years yields different values for each ratio, these ratios do not form a proportion.
If Johnny caught 2 out of 5 catfish on his first fishing trip how many catfish can he expect to catch if he caught a total of 60 fish?
60
24
600
6
Answers
Answer:
B, 24
Step-by-step explanation:
2 : 5 ratio of catching catfish
X : 60
2/5 = X/60
6 x (2/5) = (X/60) x 60
60 x (2/5) = X
X = 60 x (2/5)
X = 24
Therefore he can except to catch 24 catfish
What is the slope of a line that parallel to the line through the points A(-5,-20) and B(9,9)
Answers
Answer:
29/14
Step-by-step explanation:
9- -20 / 9 - -5 = 29/14 a parallel line will have the same slope so. 29/14
Answer:
[tex]\frac{29}{14}[/tex]
Step-by-step explanation:
Parallel lines have the same slope
So, just find the slope of (-5,-20), (9,9)
[tex]slope (m) = \frac{y}{x} \\\frac{9-(-20)}{(9-(-5)} =\frac{29}{14} \\[/tex]
Insert 3 rational numbers between 1 /4 and 1/3 using mean method
Answers
Answer:
sorry for late but there is a connection problem.
Jazz emerged as musicians combined elements of
A. bluegrass, hip-hop, and concert band music
B. classical, ragtime, and blues
C. folk, rap, and movie music
D. classical, lullabies, and rock 'n' roll
Answers
Answer:
B
Step-by-step explanation:
Answer:
The person above is correct.
Step-by-step explanation:
Don't have proof I just know, trust\(￣︶￣*\))
From a 18-foot roll of rubber hose, a person cuts lengths of 23 feet, 2 22 feet, and 6 61 feet. How much hose is left on the roll?
Answers
Answer:
Trick question? You can't cut 23 feet from an 18 foot roll.
Did you leave out the decimal points?
Step-by-step explanation:
Answer:
You can't cut 23 or 24 feet from 18 foot roll.
Type the correct answer in the box.
Consider functions fand g.
f(1) = (1 + 1)
g(x) = 3 + 1
Evaluate the function composition.
(fog)(-64) =
Answers
Answer:
f(g(-64)) = -190
Step-by-step explanation:
The functions are not well written.
Let us assume;
f(x) = x+1
g(x) = 3x+1
f(g(x)) = f(3x+1)
Replace x with 3x+1 in f(x)
f(g(x)) = (3x+1) + 1
f(g(x)) = 3x + 2
f(g(-64)) = 3(-64) + 2
f(g(-64)) = -192+2
f(g(-64)) = -190
Note that the functions are assumed but same method can be employed when calculating composite functions
Using composite functions, it is found that:
[tex](f \circ g)(-64) = -8[/tex]The composite function of functions f(x) and g(x) is given by:
[tex](f \circ g)(x) = f(g(x))[/tex]
Researching the problem on the internet, it is found that the functions are:
[tex]f(x) = (x + 1)^3[/tex]
[tex]g(x) = \sqrt[3]{x} + 1[/tex]
Then, the composite function is:
[tex](f \circ g)(x) = f(g(x)) = f(\sqrt[3]{x} + 1) = (\sqrt[3]{x} + 1 + 1)^3 = (\sqrt[3]{x} + 2)^3[/tex]
At x = -64, we have that:
[tex](f \circ g)(-64) = (\sqrt[3]{-64} + 2)^3 = (-4 + 2)^3 = (-2)^3 = -8[/tex]
Hence:
[tex](f \circ g)(-64) = -8[/tex]To learn more about composite functions, you can take a look at https://brainly.com/question/17684028
Question 3 At 11:05 a.m. a man in a parachute is 8000 feet above the ground. At 11:08 a.m. the same man is 5400 feet above the ground. What is the average rate of change, in feet per minute, between 11:05 a.m. and 11:08 a.m.?
Answers
Answer:
2600 feet every 3 minutes.
Every minute, he goes down about 866 feet.
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The average rate of change in feet per minute is 866.67.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
At 11:05 a.m. a man in a parachute is 8000 feet above the ground.
At 11:08 a.m. the same man is 5400 feet above the ground.
The average rate of change in feet per minute.
= (5400 - 8000) / (11:08 - 11:05)
= -2600 / 3
This means,
3 minutes = - 2600
1 minute = -866.67
The negative sign indicates that the feet above the ground are decreasing as time increases.
Thus,
The average rate of change in feet per minute is 866.67.
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If a kickball has the diameter of 12 inches , how much air could this call contain ?
Answers
Answer:
904.32. cu.in
Step-by-step explanation:
diameter= 12 inches
radius= 13/2=6 inches
volume of sphere= 4/3 πr³ = 4/3 ×π × 6³ = 904.32 cu.in
The amount of air contain in kickball is,
⇒ V = 904.32 in³
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
A kickball has the diameter of 12 inches.
Hence, We get;
⇒ Radius = 12/2
⇒ Radius = 6 inches
Since, We know that;
⇒ volume of sphere= 4/3 πr³
Hence, We get;
⇒ V = 4/3 ×π × 6³
⇒ V = 904.32 in³
Thus, The amount of air contain in kickball is,
⇒ V = 904.32 in³
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all numbers that have an absolute vlue of -3
Answers
Answer:
No numbers have an absolute value of -3
Step-by-step explanation:
hippity hoppity your pints are my property
absolute value cannot be negative tho
what is 129.392 rounded to nearest hundredth?
Answers
Answer:
130
Step-by-step explanation:
The numbers after the decimal point are not up to 1, so they cannot be added up to the integer.
Answer:
130 to the nearest 100th
Step-by-step explanation:
100 - 129.392 = 29.392
30 - 29.392 = 0.608
1 - 0.608
= 0.392
0.392 - 0.002
= our negative thousandth
our negative 100th is 0.39 in 129.39
What is closer to 100 is for the other side 120 or 130 in 129.38
The answer is 130
A small business owner borrowed $4200 at an annual simple interest rate of 12% what is the total amount that must be paid in three months
Answers
Answer:
Step-by-step explanation:
The total of the interest is 1386 so in total it would be 5586
Does the graph below represent a function?
Answers
Ahamd wants to cover a box that is 6 cm long 4 cm high and 4 cm wide with material on all the sides how much material does he need
Answers
Answer:
128cm²
Step-by-step explanation:
To find out how much material he needs, you need to find the surface area of the box. Each box has 6 sides, 2 of 3 different sides.
Surface area = 2(6 × 4) + 2(6 × 4) + 2(4 × 4)
= 128cm²
Which value of b would make x2 + bx - 24 factorable?
a. 4
b. 5
C. 8
d. 12
Answers
9514 1404 393
Answer:
b. 5
Step-by-step explanation:
For the trinomial to be factorable using integers, the value of b will be the difference of two factors of 24.
24 = 1×24 = 2×12 = 3×8 = 4×6
Differences of these factors are 23, 10, 5, 2. Of these, only 5 is listed as a choice.
b = 5 will make the expression factorable.