A DVD with a radius of 6 centimeters rotates at a speed of 243 revolutions per minute. Find the liner speed in centimeters per second.
Answer:
152.7 cm/s
Step-by-step explanation:
The radius of DVD, r = 6 cm
The angular speed of DVD, [tex]\omega=243\ rev/min=25.45\ rad/s[/tex]
We need to find the linear speed of the DVD.
The relation between linear speed and angular speed is given by :
[tex]v=r\omega\\\\v=0.06\times 25.45\\\\v=1.527\ m/s[/tex]
or
v = 152.7 cm/s
So, the linear speed of the DVD is 152.7 cm/s.
can someone please help with the question I have listed, thank you!
Answer:
Ok i will try if i can do it
Some number subtracted by -6 is 41. Multiply this number by-3. Then divide
this number by -4. What is the final number?
1/8 divided by 5 = ??
Answer:
[tex]\frac{1}{40}[/tex]
Step-by-step explanation:
Answer:
1/40
Step-by-step explanation:
[tex]\frac{1}{8}[/tex] ÷ [tex]\frac{5}{1}[/tex]
[tex]\frac{1 x 1 }{8 x 5}[/tex] = 1/40
Solve for x. Type in your numerical answer only, do not type the degree symbol. 60, 8x-4
FREE BRAINLIEST IF YOU ANSWER CORRECTLY!! (50pts)
you can answer as the color marked instead of typing the whole thing out!
In AABC, m_A = 45°, m_B= 89º and AC = 15. To the nearest tenth what is the measure of BA? ANSWER RN PLz!!
O A. 10
O B. 11.34
O C. 10.8
O D. 11

============================================================
Work Shown:
The triangle has the given angles A = 45 and B = 89
Let's find angle C
A+B+C = 180
C = 180-A-B
C = 180-45-89
C = 46
----------------
Segment BA, or side c, is opposite angle C
Segment AC, or side b, is opposite angle B
So we have this known info:
angle B = 89side b = 15angle C = 46Apply the law of sines to find c. Make sure your calculator is in degree mode.
sin(B)/b = sin(C)/c
sin(89)/15 = sin(46)/c
c*sin(89) = 15*sin(46)
c = 15*sin(46)/sin(89)
c = 10.7917406394501
c = 10.8
Consider the quadratic function
fx) = x2 - 8x -9
What is the vertex of the function?
Vertex
Halp me plsss
Answer:
bahhahahaha Im sorry i dont know
What is the inequality that represents the graph shown?
Given:
The graph of an inequality.
To find:
The inequality that represents the graph shown.
Solution:
From the given graph it is clear that the boundary line passes through the points (0,-1) and (2,0). So, the equation of boundary line is
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-(-1)=\dfrac{0-(-1)}{2-0}(x-0)[/tex]
[tex]y+1=\dfrac{1}{2}x[/tex]
[tex]y=\dfrac{1}{2}x-1[/tex]
The boundary line is a dashed line and the shaded portion is below the boundary line so the sign of inequality must be <.
[tex]y<\dfrac{1}{2}x-1[/tex]
Therefore, the required inequality is [tex]y<\dfrac{1}{2}x-1[/tex].
Entre Pedro y su hermana Ana han ahorrado $ 810. Pedro ha ahorrado $150 más que Ana. ¿Cuánto dinero ha ahorrado cada uno? NECESITO LA RESPUESTA CON SISTEMA DE ECUACIÓN 2 X 2, POR FAVOR.
Answer:
Pedro ahorró: $ 480
Ana ahorró = $ 330
Step-by-step explanation:
Vamos a representar
La cantidad que Pedro ahorró = x
La cantidad que Ana ahorró = y
Por eso,
x + y = $ 810 ...... Ecuación 1
Pedro ha ahorrado $ 150 más que Ana
x = 150 + y
Por lo tanto, sustituimos x por 150 + y
150 + y + y = 810
150 + 2y = 810
2 años = 810 - 150
2 años = 660
y = 660/2
y = $ 330
Resolviendo para x
= x = 150 + y
x = $ 150 + $ 330
x = $ 480
Por lo tanto,
Pedro ahorró: $ 480
Ana ahorró = $ 330
work out the value of x
Answer:
20°
Step-by-step explanation:
4x + 5x = 180° ( being co-interior angles)
9x = 180°
x = 180°/ 9
x = 20°
Hope it will help :)
Help with both questions please
Answer:1:b i think
2: 125
Step-by-step explanation:
Answer: Division ; 125
Step-by-step explanation:
First do division because (PEMDAS) do what is in the parenthesis first which is dividing the numbers inside them.
125 (just used a calculator lol)
Where is point K(-100, 100)
located?
The answer is here:
x= -100
y= 100
Hope This Helps! Have A GREATTT Day!
Answer:
x= -100
y= 100
Step-by-step explanation:
The price paid for $90 jeans after a 45% discount is applied
$
Step-by-step explanation:
Answer:
$49.50
Step-by-step explanation:
90 · 45% = 40.5
90 - 40.5 = 49.5
m(x) = 3x + 2
n(x) = 2x - 5
Find m(x) and n(x)
Write the composite function. Show your work.
11806 to its nearest 100
Answer:
11800
Step-by-step explanation:
Answer:
11800
Step-by-step explanation:
in the figure above if PQRS is a square, what is the value of a?
Answer:
sino me quivoco es 1/53 espero aber ayudado
Use the shapes to answer the question.
Which name describes all of the shapes?
O A. parallelogram
O B. quadrilateral
C. rectangle
D. rhombus
O E trapezoid
Answer: B. quadrilateral
Step-by-step explanation:
A quadrilateral is used to describe polygons with four sides. Polygons are two dimensional shapes that are closed. and have sides that are straight.
Parallelograms, rectangles, rhombuses, trapezoids are all four sided polygons as they are closed and have straight sides and so fall under the umbrella term for shapes with four sides, Quadrilateral.
given f(x)= 1/3(4-x)^2, what is the value of f(16)
Answer:
48
Step-by-step explanation:
f(x)= 1/3(4 - x)^2
f(16) = (1/3)(4 - 16)^2
f(16) = (1/3)(-12)^2
f(16) = (1/3)(144)
f(16) = 48
The value of [tex]f(16)[/tex] is 48.
Solve: [tex]f(x)=1/3(4-x)^2[/tex],
Solution:
1. Write the equation
[tex]f(x)= 1/3(4 - x)^2[/tex]
2. Substitute 16 into the x
[tex]f(16) = (1/3)(4 - 16)^2[/tex]
3. Simplify
[tex]f(16) = (1/3)(144)[/tex]
4. Multiply
[tex]f(16) = 48[/tex]
Therefore, the value of [tex]f(16)[/tex] is 48.
after 7 years, an initial investment of $600 earned $84. Find the interest rate
Answer:
2%
Step-by-step explanation:
Solving our equation
r = 84 / ( 600 × 7 ) = 0.02
r = 0.02
converting r decimal to a percentage
R = 0.02 * 100 = 2%/year
The interest rate required to
accumulate simple interest of $ 84.00
from a principal of $ 600.00
over 7 years is 2% per year.
Claude has 7 paintings and he can paint 2 every week.
Clint has 10 paintings and he takes 2 weeks to paint
1 picture. How many weeks (w) will it be before Claude
has as many paintings as Clint?
Representing the word problem as an equation, it will take 2 weeks for them to have the same number of painting.
Representing the problem with equationnumber of weeks = w
Claude's painting after w weeks can be written thus ;
7 + 2w
Clint's painting after w weeks can be written thus ;
10 + 0.5w
Equating both expression:
7 + 2w = 10 + 0.5w
Collect like terms :
2w - 0.5w = 10 - 7
1.5w = 3
w = 3/1.5
w = 2
Hence, it will take 2 weeks for them to have the same number of painting.
Learn more on word problems;
https://brainly.com/question/21405634
#SPJ1
Find the value of x to the nearest tenth
Answer:
I think it's 8 because the other sides are equal, so x and 8 should be equal as well
Are the given lenghts a right triangle? 28, 53,45
Answer:
not at all
Step-by-step explanation:
this is a scalene triangle cuz each side is a different length.
Kind of confused, can someone help?
Marcie Bruno received a 4.2% merit increase and a 2.75% cost-of-living increase
after her quarterly review. Her new weekly salary was $788.92. What was her
weekly salary prior to the increases?
Answer:
734.1
Step-by-step explanation:
100%=788.92
4.2%=33.13
2.75%=21.69
33.13+21.69=54.82
788.92-54.84=734.1
resultado de la conversion
2.5 km a m
Answer:
Step-by-step explanation:
2.5 kilometre = 2500 Meter
Formula:
multiply the length value by 1000
(hope this helps can i plz have brainlist :D hehe)
Translated:
2.5 kilómetros = 2500 Metro
Fórmula:
multiplica el valor de la longitud por 1000
(Espero que esto ayude, ¿puedo tener una lista de ideas: D jeje?)
Four less than a number is twelve
Express 40cm as a
percentage of 8m
Step-by-step explanation:
8m =800m
in percentage=40÷800×100
= 5%
Find the value of x.
X
7
24
X=
Step-by-step explanation:
By the Pythogorus property:
(base^2)+(altitude^2)=(hypotenuse^2)
also written as
(a^2)+(b^2)=(c^2)
Base=24
Altitude=7
(24*24)+(7*7)
=576+49
=625
√625
=(5*5*5*5)
=(5*5)*(5*5)
=25*25
=25^2
Therefore the answer is 25
Translate each of the following word phrases into algebraic expressions using the symbols given.
Eg) Twelve times a number 'x', plus a second number 'y'
= 12x + y
1) Half the product of two numbers x and y, minus five times a third number z.
Answer:
half that's 1/2
product that's multiplication ×
therefore (x*y)/2- 5z