Which function is f(5) for the function -2x^2+2x-3
A: -107
B: -63
C: -43
D: -37
Answer:
The answer is C.
Step-by-step explanation:
Total profit P is defined as total revenue R minus total cost C, and is given by the function P(x)=R(x)−C(x). Find the total profit P(x) when R(x)=126.98x−0.5x2 and C(x)=3809.40+0.7x2.
Given:
The revenue function is
[tex]R(x)=126.98x-0.5x^2[/tex]
The cost function is
[tex]C(x)=3809.40+0.7x^2[/tex]
To find:
The profit function.
Solution:
We know that, the total profit P is defined as total revenue R minus total cost C.
So, the profit function is
[tex]P(x)=R(x)-C(x)[/tex]
[tex]P(x)=126.98x-0.5x^2-(3809.40+0.7x^2)[/tex]
[tex]P(x)=126.98x-0.5x^2-3809.40-0.7x^2[/tex]
[tex]P(x)=-3682.42-1.2x^2[/tex]
Therefore, the profit function is [tex]P(x)=-3682.42-1.2x^2[/tex].
Does anyone need help with History or Algebra, Common core, Pre-Algebra Or Fractions of such?
Answer:
I dont know but maybe later
-2j - 10 = -6 She calculated j = 8
Is this correct or incorrect?
Answer:
incorrect
Step-by-step explanation:
this is incorrect because i solved it and i didn't got that answer
hope this helps:)
Pls mark brainlist
Answer:
Incorrectj = -2Explanation:
-2j - 10 = -6
Add 10 To Both Sides−2j − 10 + 10 = −6 + 10
−2j = 4
Divide Both Sides By -2-2j / -2 = 4 / -2
j = -2please help i’ll give you brainliest and a thanks
Answer:
[tex]3g + 40[/tex] and g= 60
Step-by-step explanation:
hope this helps have a good rest of your night :) ❤
In September, Louise planted a tree. Every month, the tree Louise planted grew 2 inches. What would the constant of proportionality of the line be?
Answer:
i think it would be 2 inches
Step-by-step explanation:
What’s 17/21 closest to 0,1/2 or 1
Answer:
closest to 1
Step-by-step explanation:
The given fraction is converted into decimal to find the closest value as 1.
What is a fraction?A fraction is a number written in the form a / b, where a and b are integers and b ≠ 0.
The number a is called as the numerator and b is the denominator.
The given fraction is 17/21.
It can be written in decimal as below,
⇒ 17/21 = 0.809
Now, the given decimal can be compared with 0, 1/2 and 1 as follows,
0.89 > 0, 1/2 and 0.89 < 1
Which implies that it is closest to 1.
Hence, the given fraction 17/21 is closest to the integer 1.
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help me please!
what goes in the box?
Answer:
Answer:
-20/10
y=-20 x=10
Answer:-36/-6=-6
Step-by-step explanation:
WILL MARK YOU BRAINLIEST SHOW WORK PLZ
Answer:
5) because ABCD is a rectangle => AC = BD
<=> 4x - 5 = 3x - 1
<=> 4x - 3x = -1 + 5
<=> x = 4
6) because EFGH is a rhombus
=> HF is the bisector of the angle EHG
=> EHF = GHF
<=> 3x - 15 = 2x + 9
<=> x = 24
PLEASE HELP THIS IS URGENT !
Complete the table by squaring each negative x-value listed.
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
4, 9, 16, 25, 36, 49, 64, 81, 100, 121
a negative times a negative is a positive and squaring those numbers would be multiplying a negative by itself.
For example (-2)*(-2) is 4
**note, this only applies if the negative value is in the parentheses. (-2)^2 is different than -2^2 because with -2^2 only the 2 is getting squared and then you’d have to multiply the negative after**
x x3
-2 -2^3 = -2 • -2 • -2 = -8
-3 -3^3 = -3 • -3 • -3 = -27
-4 -4^3 = -4 • -4 • -4 = -64
-5 -5^3 = -5 • -5 • -5 = -125
-6 -6^3 = -6 • -6 • -6 = -216
-7 -7^3 = -7 • -7 • -7 = -343
-8 -8^3 = -8 • -8 • -8 = -512
-9 -9^3 = -9 • -9 • -9 = -729
-10 -10^3 = -10 • -10 • -10 = -1,000
-11 -11^3 = -11 • -11 • -11 = -1,331
Answer Straight From Edmentum/Brainly Hope it helps! :)
ABCD is a trapezium
AD=10cm
AB=9cm
DC=3cm
Angle ABC=angled BCD=90degrees
Calculate the length of AC
Give your answer correct to 3 significant figures
Answer:
12.0 cm
Step-by-step explanation:
✔️First, find the height, BC, of the trapezium using Pythagorean Theorem.
BC² = 10² - (9 -3)²
BC² = 10² - 6²
BC² = 64
BC = √64
BC = 8 cm
✔️Find AC using Pythagorean Theorem:
AC² = AB² + BC²
AC² = 9² + 8²
AC² = 145
AC = √145
AC = 12.0415946 ≈ 12.0 (3 significant figures)
As a retiring employee, you'll receive 5.96% of your average salary from the last five years you worked with your company.
You plan to retire after 37 years with the company.
Your salaries for your last five years are:
$180,267
$210,325
$126,591
$77,184
$173,175
Calculate your annual retirement salary.
Answer:
9,149.10
Step-by-step explanation:
To get the average you take all the values and add them up then divide by 5.
767,542 divided by 5 = 153,508.40
Now to get the percentage take 5.96 and divide by 100 = 0.0596
With this you can multiple the average by the percent in decimal form.
153,508.40 * 0.0596 = 9,149.10
IM BEGGING U I CANT FAIL MAN
An air conditioning system salesperson earns a base yearly salary of $38,000 and earns a commission of $500 for every air conditioning system sold. Using your equation from Question 1, how much will the salesperson earn if 22 air conditioning systems are sold in one year? Put the following steps in order.
Answer:
order
500x+38000
500(22)+38000
11000+38000
49000
Step-by-step explanation:
We can write the following equation
38000+500x= salary
where x is the number of air conditioners sold
To get the answer just plug in 22 for x
38000+500(22)=49000
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 steps in order are:
y = 500x + 38,000
y = 500 x 22 + 38,000
y = 11,000 + 38,000
y = 49,000 earned.
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,
Yearly salary = $38,000
Commission per sold = $500
Now,
Number of items sold = 22
The y amount earned for selling x items.
y = 500x + 38,000
y = 500 x 22 + 38,000
y = 11,000 + 38,000
y = 49,000
Thus,
The steps in order are:
y = 500x + 38,000
y = 500 x 22 + 38,000
y = 11,000 + 38,000
y = 49,000 earned.
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Find the recursive definition for this sequence
2,6,18,54,162
I NEED HELP NOW PLEASE! (Science)
A bowling ball is placed on the moon.
Which feature of the bowling ball stays the same?
A. force from gravity
B. weight
C. mass
Answer:
C. mass
Step-by-step explanation:
gravity is different on the moon
and weight is different because of that change in gravity
If the bowling ball is placed on the moon, the feature which will stays same, mass of the ball. So option C is correct
What is Force ?The definition of force is the pushing or pulling of anything. Push and pull are the result of two things interacting with one another. Stretch and crush are two more phrases that can be used to describe force.
Given that,
A bowling ball is placed on the moon
So, when ball is placed on moon, it affects the following factors,
Force from gravity - On the Earth and on the Moon the gravitational force will be different.
Weight - On the Earth and On the Moon the gravitational acceleration will be different so weight will be different on both the planets.
Mass- It is the property of the object and it is independent from the planets, it will be same on every planet.
Hence, the Mass is same on both the planets
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Anyone know this answer! This is due in 30 minutes
Answer:
The answer is 0.60 cents
Step-by-step explanation:
1.20 ÷ 2 = .60
.60 × 2 = 1.20
.60 × 4 = 2.40
.60 × 7 = 4.20
.60 × 12 = 7.20
Rotate left
(counterclockwise) 90°
Answer:
Draw it like it would be sideways, or if the image you see turned to the left, on its side.
Step-by-step explanation:
Below is an example of it turning. Your shape is already on the center point, so it won't be moving along the X-axis and the center point can stay where it is. the shortest side of it should be facing the left side of your paper.
The total rainfall for the year is expected to be 57.8 inches. If it has already rained 32.95 inches, how many more inches of rain are expected?
Answer:
Step-by-step explanation:
57.8 - 32.95 = 24.85
24.85 inches
Don't forget units! :)
Answer:
24.85in
Step-by-step explanation:
This is a very simple subtraction:
57.80-32.95=24.85in
i hope this helps
pls give thx and brainliest
what equation to solve for x choose all that apply
Answer:
I think 4( 129-58 = z)
Step-by-step explanation:
Hope it helped
the question is in the photo
Answer:
d is vertical so its 70 b c and a combined is also vertical to e so we have 110
Step-by-step explanation:
K is between P and Q. Suppose PQ- 10x - 16, PK - 6x + 8, and KQ-8. What is PQ?
Answer:
PQ = 64
Step-by-step explanation:
PQ = PK + KQ
10x - 16 = 6x + 8 + 8
10x - 16 = 6x + 16
4x = 32
x = 8
PQ = 10(8) - 16
= 80 - 16
= 64
Sole 6-x=4(5+ x) – 4
O A x=-5
OB. x= -1
O c. x=-2
O D. There are infinitely many solutions.
Answer:
C. x=-2
Step-by-step explanation:
To solve use PEMDAS,
First, distribute
6-x=20+4x-4
Then, combine like terms
6-x=16+4x
Add x to both sides
6=16+5x
Subtract 16 from both sides
-10=5x
Divide both sides by 5
-2=x
Write one parallel equation, to the equation y = 3x + 2 with a y-intercept of 5.
Answer:
[tex]y=3x+5[/tex]
Step-by-step explanation:
Parallel lines have the same slope.
This means that we would only have to change the y-intercept to get our new line.
We are asked to write an equation of a parallel line with the y-intercept of five.
Rewrite the infomation to create the new equation. Note that parrarell lines have the same slope.
[tex]y = 3x + 2\rightarrow\boxed{y=3x+5}[/tex]
Hope this helps.
True or false: f(x) is a function.
4
8
1
12
f(x)
Describe the graph of the equation y = 0. Is the equation a function?
vertical line; yes
horizontal line; yes
vertical line; no
horizontal line; no
Answer: B. horizontal line; yes
Use the slope-intercept form to find the slope and y-intercept.
Slope:
0
y-intercept:
(0,0)
Yes it is a function. It is a horizontal line.
Every point on this line is of the form (x,4) where x can be any number you want. The y coordinate is fixed at 4 and cannot change. Two points on this line are (0,4) and (1,4). The horizontal line goes through 4 on the vertical y axis.
Why is it a function? Because it is impossible to draw a vertical line through more than one point on the graph of y = 4. The graph passes the vertical line test. Put another way, for any x input, there is exactly one y output.
Side Note: y = 4 is the same as y = 0x+4. Note how its in the form y = mx+b
m = 0 is the slope
b = 4 is the y intercept
Step-by-step explanation: A. vertical line; yes
horizontal line; yes
Yes! Horizontal line represents a function y = f(x)
(1):Firstly, lets understand a function. For a function to be defined, we have a set of independent variables(inputs) (Domain), a set of dependent variables (outputs) (Codomain). And a relation between the variables.
(2): Each input in X must be related to exactly one output in Y. Or else it won't represent a function.. like in the following image.. y is a function of x.Because each element ofX has one& only one image in Y
C. vertical line; no
Megan is planning a surprise dinner for her best friend. She has a set budget of $260. The venue charges
a flat fee of $25 for the reservation and they are going to charge her $15 a person. How many people can
Megan invite at most?
Answer:
15 people at most
Step-by-step explanation:
25+15+15+15+15+15+15+15
+15+15+15+15+15+15+15+15=250
44 points! Brainliest for correct answer!
Margie has 5 times as many nickels as quarters. She has a total of $2.00.
Part (a) Write a system of equations to represent the situation. Let n represent the number of nickels and q represent the number of quarters.
Part (b) Solve the system you wrote in part (a). Show your work.
Part (c) Interpret your solution in the context of the problem.
P.S. Sorry for asking so many questions, I swear this will be the last one for a while.
The only thing I really need help with is Part A, writing the equations.
Answer:
5n + 25q = 200 - - - (1)
n = 5q - - - (2)
q = 40
n = 5(40) = 200
Step-by-step explanation:
Number of Nickels = n
Number of Quarters = q
$2.00 = $2 * 100 = 200 cent
Nickel = 5 cent
Quarter = 25 cent
5n + 25q = 200 - - - (1)
n = 5q - - - (2)
5(5q) + 25q = 200
25q + 25q = 200
50q = 200
q = 200/5
q = 40
n = 5(40) = 200
Solve for x and round to the nearest 10th. I'm a k12 student. I'm not sure if that helps but this is geometry. aka 10th grade math. i will mark brainliest
Answer:
x= 64.3
Step-by-step explanation:
To solve for x, you have to use trig. Since you're solving for an angle, you use inverse trig.
the problem gives you your opposite(29) and your adjacent(14), so you will use tangent.
so to set up your equation to type it into your calculator, it will be
[tex]tan^{-1} (\frac{29}{14} )[/tex]
type this into your calculator and you will get x.
The space probe Voyager I travels 3.255 x 108 miles in a year.
At this rate, how far does the Voyager I travel during a period of 40 years?
The Voyager I travel 130.2 x [tex]10^8[/tex] miles during a period of 40 years.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
The space probe Voyager I travels 3.255 x [tex]10^8[/tex] miles in a year.
So, in 40 years Voyager I travel
= 3.255 x [tex]10^8[/tex] x 40
= 130.2 x [tex]10^8[/tex] miles.
Thus, the Voyager I travel 130.2 x [tex]10^8[/tex] miles.
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Four students are going on a trip. Each student needs at least $2000 for the trip. each student writes an inequality that can be used to determine the number of weeks,x, that the student will need to save up the money for the trip. The inequalities are shown in the table below.
Lin 50x+ 1400[tex]\geq[/tex]2000
Reza 250x+ 1000 [tex]\geq[/tex]2000
Pierre 10x+1200[tex]\geq[/tex]2000
150x+200[tex]\geq[/tex]2000
Which of the following students wrote an inequality with a solution of x[tex]\geq[/tex]12
a. lin
b. reza
c. pierre
d. hermione
Answer:
First of all, this is a simple solution to the equation, by simplifying the equation to x greater than or equal to 12, so option A is in line with the meaning of the problem
Answer: The answer is A & D
Step-by-step explanation:
150x + 200 >_ 2000= x >_12
50x + 1400 >_ 2000= x >_ 12
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