f(x)=-5x2+4x-6
f(2)= -5*2*2+4*2-6
f(2)= -20+2
f(2)=-18
Ryan bought a bike for $47,000 in the year 2002. Its value depreciates by 2% per year. What is the value
of the bike in 2006?
Answer:
$43351.30
Step-by-step explanation:
c) 4−4/5= 2
d) –4 + 3 ( 2 – x) = –8
e) 8 – ( 5 – 9x ) = 7( 1 – x )
f) –5 – 3( x + 1 ) = –( –4x + 1)
g) 4−6/9= 1/3+ x
Powodzenia ☺
Step-by-step explanation:
I will skip question c as there is no subject to solve.
d)
[tex] - 4 + 3(2 - x) = - 8 \\ - 4 + 6 - 3x = - 8 \\ 2 - 3x = - 8 \\ - 3x = - 8 - 2 \\ - 3x = - 10 \\ x = 10 \div 3 \\ = \frac{10}{3} \: or3 \frac{1}{3} [/tex]
e)
[tex]8 - (5 - 9x) = 7(1 - x) \\ 8 - 5 + 9x = 7 - 7x \\ 3 + 9x = 7 - 7x \\ 3 + 9x + 7x = 7 \\ 16x = 7 - 3 \\ 16x = 4 \\ x = 4 \div 16 \\ = \frac{1}{4} [/tex]
[tex] - 5 - 3(x + 1) = - ( - 4x + 1) \\ - 5 - 3x - 3 = 4x - 1 \\ - 8 - 3x = 4x - 1 \\ - 8 - 3x - 4x = - 1 \\ - 7x = - 1 + 8 \\ - 7x = 7 \\ x = 7 \div - 7 \\ = - 1[/tex]
g)
[tex]4 - \frac{6}{9} = \frac{1}{3} + x \\ 4 - \frac{2}{3} = \frac{1}{3} + x \\ x + \frac{1}{3} = 4 - \frac{2}{3} \\ x = 4 - \frac{2}{3} - \frac{1}{3} \\ = 4 - 1 \\ = 3[/tex]
Use the numbers below to simplify the expression. Numbers may be used once or not at all. 34671011 3y + 7 + 4y + 3 = y +
Answer:
[tex]3y + 7 + 4y + 3 = 7y + 10[/tex]
Step-by-step explanation:
Given
[tex]3y + 7 + 4y + 3 = [\ ]y + [\ ][/tex]
Required
Simplify
We have:
[tex]3y + 7 + 4y + 3[/tex]
Collect like terms
[tex]3y + 7 + 4y + 3 = 3y + 4y + 7 + 3[/tex]
Evaluate like terms
[tex]3y + 7 + 4y + 3 = 7y + 10[/tex]
The line segment shown is translated down 4 units, what are the new coordinates of B?
(0.3)
Answer:
(0, - 1 )
Step-by-step explanation:
A translation down means subtracting 4 from the y- coordinate of the point, that is
B(0, 3 ) → B'(0, 3 - 4 ) → B'(0, - 1 )
HELPPPPP PLZZZZ ASAPPPPP
Answer:
complete angle is 360°
360 - 39
329°
EMERGENCY PLS HELP: Calculate the volume.
Answer:
[tex]525\pi[/tex]
Step-by-step explanation:
Volume of a cylinder is given by the function [tex]v=\pi r^{2}h[/tex]
where v is volume, r is radius and h is height.
In order to find the radius we just divide the diameter in half and get
[tex]\frac{10}{2} =5=r[/tex]
now we just plug the values in the formula
[tex]v=\pi r^{2}h\\=\pi (5^{2})(21)\\=\pi (25)(21)\\=525\pi[/tex]
Answer:
Volume of a cylinder: V = π (r^2) h
Step-by-step explanation:
First, find your radius and your height.
H = 21
D = 10
R = 1/2 d = 5
Then plug them into the equation: V = π (r^2) h
V = π (5^2) 21
V = π (25) 21
V = π (25 x 21)
V = π (525)
V = 525π
Before a renovation, a movie theater had 145 seats. After the renovation, the theater has 178 seats. What is the approximate percentage increase of the number of seats in the theater? If necessary, round to the nearest tenth of a percent.
Answer:
Use https://www.bartleby.com/ it has helped me out a lot . Its actual tutors/teachers who answer your questions in about 30 minutes !!!!!!!!
Step-by-step explanation:
how to solve 9x-5-(-6x)
Answer: 3x-5
Step-by-step explanation:
9x-5(-6x)
9x-5-6x
3x-5
Answer:
15x - 5
Step-by-step explanation:
We have the equation 9x - 5 - (-6x) and are asked to solve it.
We cannot combine 9x and 5 because they have a variable difference, with 9 having x as its variable and 5 having no variable. What we can do is distribute the minus sign to the right of 5 to (-6x), lets do as said :
9x - 5 - (-6x)
Two negatives make a positive, therefore :
9x - 5 + 6x
Since 9x and 6x have the same variable ending, we can combine them, do as followed :
9x - 5 + 6x
9x + 6x
15x - 5
HELP PLZ ILL MAKE BRAINLIEST AND GIVE ALOT OF POINTS-
Answer:
d = - [tex]\frac{9}{13}[/tex]
Step-by-step explanation:
Given
13d + 8 = - 1 ( subtract 8 from both sides )
13d = - 9 ( divide both sides by 13 )
d = - [tex]\frac{9}{13}[/tex]
Answer:
d = -9/13Step-by-step explanation:
Given ,
13d + 8 = -1
=> 13d = -1 - 8
=> 13d = -9
[tex] = > d = \frac{ - 9}{13} [/tex]
Hence,
The value of d = -9/13 (Ans)
Please say the answer as fast possible with working. It would be so kind if you sended this early
Answer: 2. 2
3. 110,121,132
4.22,110
5.4.5
Step-by-step explanation:
2. 20-12=8, 8divided by 4=2
3. 363 divided by 3=121(this is the avg of the consecutive multiples so one multiple must be 11 above and another 11 below
4.66 divided by 3=22, 22x 2 and 22 x 5
5.2 x2=4, 13-4=9, 9 divided by 2 is 4.5
help me pls T^T this is due today
What is the equation of the blue line?
Answer:
y = -3x - 1
Step-by-step explanation:
pass (-2,5) (0,-1) (1,-4)
use any two points to find the equation
slope (m) = (-1 -5)/(0- -2) = -6/2 = -3
y = mx+b b: y intercept=-1
equation: y = -3x - 1
PLEASE HELP ME ANSWER!
Answer:
dsg
Step-by-step explanation:
srg
Answer:
x= 110
Step-by-step explanation:
vertical angles
set up :
6x + 115 = 7x +5 (subtract 6x from both sides)
115 = x +5 (subtract 5 from both sides)
110 = x (your answer)
CHECK:
6(110) + 115 = 775
7(110) + 5 = 775
PLZZZZ HELP RN ASAPPP
Answer:
mean=21, median= 14
Step-by-step explanation:
I hope this helps.
Answer:
Median = 14
Mean = 20
Step By Step Explanation:
Which of these n values are solutions to the following equation?
n2 = 2.25
Choose all answers that apply:
А)
n = 1.1
В)
n = -1.1
C)
n = 1.4
D)
n = -1.4
E)
None of the above
Answer:
None of the above
Step-by-step explanation:
Square root of 2.25 is 1.5, not 1.4
Answer:
none of the above
Step-by-step explanation:
did it on khan
please help convert the improper fractions to mixed numbers
Answer:
1. 1 1/4
2. 2 1/2
3. 2 2/5
4. 1 1/5
5. 4 1/3
y'all I'm crying...help
Answer:
Below in bold.
Step-by-step explanation:
C1 = 180 - C2
= 180 - (170-2x)
= 10 + 2x
So B3 = 10+2x (alternate angles).
and B2 = 90 - B3
= 90 - (10 + 2x)
= 80 - 2x.
JL is a common tangent to circles M and K at point J. If angle MLK measures
619, what is the length of radius MJ? Round to the nearest hundredth. (Hint:
Show that triangles LMJ and LKJ are right triangles, and then use right triangle
trigonometry to solving for missing sides of the right triangles.) (10 points)
pls help
Answer:
MJ = 6.5
Step-by-step explanation:
Tangent lines to a circle are perpendicular to the radius.
tan 68° = JL/3
2.4751 = JL/3
JL = 7.4253
∠JLK = 90° - 68° = 22°
∠MLJ = 61° - 22° = 39°
sin 61° = MJ/7.4253
MJ = 7.4253(0.8746) = 6.5
The length of radius MJ is 5.99 units
How to calculate the radius MJ?Start by calculating the length JL using the following tangent ratio
tan(68°) = JL/3
Make JL the subject
JL = 3 * tan(68°)
Evaluate the product
JL = 7.4
From the figure, the measure of angle MLJ is:
∠MLJ = MLK - JLK
Where:
∠JLK = 90° - 68° = 22°
So, we have:
∠MLJ = 61 - 22
∠MLJ = 39
The radius MJ is then calculated using the following tangent ratio
tan(39) = MJ/JL
This gives
tan(39) = MJ/7.4
Make MJ the subject
MJ = 7.4 * tan(39)
Evaluate
MJ = 5.99
Hence, the length of radius MJ is 5.99 units
Read more about line of tangents at:
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Use the distributive property with factoring to find the equivalent expression. 24n + 32w = (3n + w)
Answer:
Step-by-step explanation:
24n + 32w = (3n + w)
We're asked to use distributive property, this means that we have to find a way that the given expression on the left hand side is equal to the given incomplete exresssion on the right hand side. In so doing, we're fulfilling the distributive property tag.
Given 3n, 3 factorises 24 into 8, and at the same time, factorises 32 into 4. Thus, we can then conclude that
24n + 32w = 8(3n + 4w)
QUICKKKKKKKKKK I NEED THIS ANSWER
IF WRONG REPORTED
Answer:
D
Step-by-step explanation:
PLEASE HELP! WILL MARK BRAINLIEST !!
3. Which figure below is a graph of r(x) = 2 + x+1/x+3 ? Explain and show how you know.
Answer:
I believe the answer is B
Step-by-step explanation:
The graph with Vertical Asymptotes: x=-3 and Horizontal Asymptotes: y=3 is given below.
The given function is [tex]r(x)=2+\frac{x+1}{x+3}[/tex].
What is the graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points. A graph consists of some points and lines between them. The length of the lines and position of the points do not matter.
The graph for the given function is
Find the asymptotes.
Vertical Asymptotes: x=-3
Horizontal Asymptotes: y=3
No Oblique Asymptotes
The graph with Vertical Asymptotes: x=-3 and Horizontal Asymptotes: y=3 is given below.
To learn more about the graph visit:
brainly.com/question/14375099.
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Find the equation of the line specified.
The line passes through the points ( -2, 3) and ( -4, 7)
a.
y = -2x - 1
c.
y = -4x - 1
b.
y = -2x + 3
d.
y = -2x + 7
Please select the best answer from the choices provided
A
B
C
D
Answer:
D
Step-by-step explanation:
2/3 - 3/2y + 1/3y + 4 = 0
Answer:
y = 4
Step-by-step explanation:
(2/3 + 4) + (-3/2y + 1/3y) = 0
(-3/2y + 1/3y) = -4 2/3
-9/6y + 2/6y = -14/3
-7/6y = -14/3
cross-multiply:
-21y = -84
y = 4
Answer:
y = 4
Step-by-step explanation:
Please use parentheses for clarity, remembering what big differences they make in expression values.
I will assume that your "2/3 - 3/2y + 1/3y + 4 = 0" actually means
2/3 - (3/2)y + (1/3)y + 4 = 0
The LCD here is 6, which is the product of the denominators 2 and 3.
Then your "2/3 - 3/2y + 1/3y + 4 = 0" becomes:
4 - 9y + 2y + 24 = 0, which simplifies to:
28 - 7y = 0. Solving this, we get y = 4
help please
1. Which function is exponential? Write the function
(Exponential form is y=a(b)^x)
2.Which function is linear? Write the function
( linear y=mx+b)
Answer:
Easy way to distinguish:
Linear function forms a AP and exponential function forms a GPWe see f(x) is series of:
8, 14, 20, 26, 32This is a AP with common difference of 6 and the first term of 8g(x) is series of:
4, 12, 36, 108, 324This is a GP with common ratio of 3 and the first term of 41. g(x) is exponential function:
g(x) =4*3ˣ2. f(x) is linear function:
f(x) = 6x + 8What are the solution(s) of -1/2X+4= X+ 1?
O-1 and 8
О 1 and 4
O 2
O 3
Answer:
X = 2
Step-by-step explanation:
-1/2X+4= X+ 1
Add 1/2X to each side
-1/2X+ 1/2 X+4= X+ 1 + 1/2 X
4 = 3/2 X +1
Subtract 1 from each side
4-1 = 3/2 X +1-1
3 = 3/2 X
Multiply each side by 2/3 to isolate x
3 * 2/3 = 3/2 X * 2/3
2 =X
Choose the calculation that shows “add 26 to m”. A)
Answer: easy it’s..........
Step-by-step explanation: 26+M
The boiling temperature (in degrees Celsius) of platinum is 199 more than four times the boiling temperature $z$ (in degrees Celsius) of zinc.
a. Write an expression that represents the boiling temperature (in degrees Celsius) of platinum.
b. The boiling temperature of zinc is 907 degrees Celsius. What is the boiling temperature of platinum?
Answer: THIS IS SO HARD!
Step-by-step explanation:
The required boiling temperature of platinum is 3,739 degrees Celsius.
What is simplification?Simplification involves applying rules of arithmetic and algebra to remove unnecessary terms, factors, or operations from an expression. The goal is to obtain an expression that is easier to work with, manipulate, or solve.
Here,
a. Let's start by defining a variable for the boiling temperature of zinc, which we'll call z.
According to the problem statement, the boiling temperature of platinum is 199 more than four times the boiling temperature of zinc. In other words,
Boiling temperature of platinum = 4z + 199
So the expression that represents the boiling temperature of platinum in degrees Celsius is:
4z+199
b. The problem tells us that the boiling temperature of zinc is 907 degrees Celsius. So we can substitute this value for z in our expression:
4z+199 = 4(907)+199 = 3,739
Therefore, the boiling temperature of platinum is 3,739 degrees Celsius.
Learn more about simplification here:
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X = 10
3.2 + 5y = 20
What is the solution (x, y) of the system of equations?
Please help me with this!! I’ll give brainliest
Answer:
I think its 62 IM SO SORRY IF ITS WRONG!!!!!!
Step-by-step explanation:
Because
8 x 2 = 16
3 x 2 = 6
10 x 4= 40
all together is 62
the area is __ square units
Answer:
26 square units
Step-by-step explanation:
hope this helped!