4x + 3 + x² – x
uhhh... help ?
Answer:
=x
Step-by-step explanation:
The measure of each edge length of a unit cube is?
Answer:
1 unit long.
Step-by-step explanation:
I HAVE THE POWER OF GOD AND ANIME ON MY SIDE
DEATH NOTE
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What is the missing side?
Answer:
18. lol
Step-by-step explanation:
Answer:
using the Pythagoras theorem,
[tex]a { }^{2} + b {}^{2} = c {}^{2} [/tex]
144+225=c squared
369=c sqared
13=c
so, your unknown value is 13
Supongamos que el 20% de los objetos fabricados por una empresa son defectuosos. Escogemos 4 objetos al azar. Hallar la probabilidad de que (a) 2 sean defectuosos, (b) 3 sean defectuosos, (c) ninguno sea defectuoso.
Responder:
0,1536
0.0256
0.4096
Explicación paso a paso:
Dado que :
p = 0,2
Número de ensayos, n = 4
1 - p = 1 - 0,2 = 0,8
Probabilidad de que 2 sean defectuosos;
Usando la fórmula de distribución binomial:
P (x = 2)
P (x = x) = nCx * p ^ x * (1 - p) ^ (n - x)
P (x = 2) = 4C2 * 0.2 ^ 2 * 0.8 ^ 2
P (x = 2) = 6 * 0,04 * 0,64
P (x = 2) = 0,1536
3 están defectuosos:
P (x = 3) = 4C3 * 0,2 ^ 3 * 0,8 ^ 1
P (x = 3) = 4 * 0,008 * 0,8
P (x = 3) = 0,0256
Probabilidad de que ninguno sea defectuoso:
P (x = 0) = 4C0 * 0.2 ^ 0 * 0.8 ^ 4
P (x = 0) = 1 * 1 * 0,4096
P (x = 0) = 0,4096
Usando la distribución binomial, se encuentra que hay una probabilidad de:
a) 0.1536 = 15.35% que 2 sean defectuosos.
b) 0.0256 = 2.56% que 3 sean defectuosos.
c) 0.4096 = 40.96% que ninguno sea defectuosos.
Para cada objeto, solo hay dos resultados posibles. O está defectuoso o no lo es. La probabilidad de que un objeto sea defectuoso es independiente de cualquier otro ítem, lo que significa que se utiliza la distribución binomial para resolver esta cuestión.
Distribución binomial:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
Los parámetros son:
n es el número de ensayos. p es la probabilidad de éxito en un ensayo x es el número de éxitosEn este problema:
4 objetos, por eso [tex]n = 4[/tex].20% son defectuosos, por eso [tex]p = 0.2[/tex].Item a:
Esta probabilidad es P(X = 2), o sea:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 2) = C_{4,2}.(0.2)^{2}.(0.8)^{2} = 0.1536[/tex]
Probabilidad de 0.1536 = 15.35% que 2 sean defectuosos.
Item b:
Esta probabilidad es P(X = 3), o sea:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 3) = C_{4,3}.(0.2)^{3}.(0.8)^{1} = 0.0256[/tex]
Probabilidad de 0.0256 = 2.56% que 3 sean defectuosos.
Item c:
Esta probabilidad es P(X = 0), o sea:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{4,0}.(0.2)^{0}.(0.8)^{4} = 0.4096[/tex]
Probabilidad de 0.4096 = 40.96% que ninguno sea defectuosos.
Un problema similar es dado en https://brainly.com/question/25132113
If the measure of each exterior angle is twice as large as each interior angle, the polygon must be a regular
Answer:
y+o+u+t+u+b+e +biggie smalls
Step-by-step explanation:
The polygon will be a triangle if the measure of each exterior angle is twice as large as each interior angle.
What is a regular polygon?
A polygon is a geometric figure with a finite number of sides in two dimensions. On the sides or edges of a polygon, straight-line segments are joined end to end to form a closed shape. The vertices, also known as corners, are the points where two line segments meet and form an angle.
As we know, the interior angle is given by:
= 180(n - 2)
Sum of the exterior angle is 360 degree
(360/n) = 2[180(n - 2)]/n
360 = 360(n - 2)
n = 3
Number of sides n = 3
Polygon will be a triangle
Thus, the polygon will be a triangle if the measure of each exterior angle is twice as large as each interior angle.
Learn more about the regular polygon here:
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Find the volume of the prism.
7 m
20 m
24 m
The volume of the prism is
I NEED HELP
Answer:
i dont know im sorry
Step-by-step explanation:
a square has a perimeter of 60 cm. what is the length of each side?
Answer:
15! all the sides are the same length
Step-by-step explanation:
60/4
15
(7, 14)
(2, 20)
(20, 3)
(0, 13)
Is this relation a function?
yes
no
5/6 + (-4/9) -(-2).
Answer:
= 2 7/18
Step-by-step explanation:
Follow the PEMDAS order of operations.
Add and subtract left to right
=43/18 (as an improper fraction)
=2 7/18 (as a mixed number)
line f has a slope of -9/2. line g is perpendicular to f what is the slope of line g
Answer:
The slope of line g is [tex]\frac{2}{9}[/tex].
Step-by-step explanation:
We know that line f has a slope of [tex]-\frac{9}{2}[/tex] and that line g and line f are perpendicular to each other. Perpendicular lines have slopes that are opposite reciprocals of each other. Thus, the opposite reciprocal of [tex]-\frac{9}{2}[/tex] must be the slope of line g.
To find the opposite reciprocal of a number, change its sign and swap the numbers of the numerator and the denominator. So, the opposite reciprocal of [tex]-\frac{9}{2}[/tex] must be [tex]\frac{2}{9}[/tex]. [tex]\frac{2}{9}[/tex] has to be the slope of line g as well.
Annual income of A is 10% more than of B whereas income of B is 20% more than that of C. If monthly income of C is $ 2000 then what is the sum of monthly incomes of A, B and C?
A. $ 6,872
B. $ 7,046
C. $ 7,772
D. $ 7,040
Answer:
7040
Step-by-step explanation:
C= 2000
B = 20/100 x 2000 = 400 + 2000 = 2400
A= 10/100 x 2400 = 240+2400= 2640
2000 + 2400 + 2640 = 7040
Make a sketch of the cross section resulting from the slice shown in the right square pyramid below. Then, using complete sentences, describe the cross section.
Answer:
Square cross section
Also, the smaller pyramid created is similar to the big one.
Step-by-step explanation:
WILL GIVE BRAINLIEST TO CORRECT ABSWER. can someone please solve 2,4,6, and 8
Answer:
pls resnap, i tried to zoom in but i can't see clearly
Write the equation in slope-intercept form of the line that is parallel to the graph of the equation and passes through the given point. y= x+3; (-2,-5)
Answer:
y=x^2 + 3x - 3
Hope it helped :)
Please i need help ASAP
fourteen decreased by three times four
Answer:
3 times a number is 3x
decreased by 14 is '- 14'
is 4 is '= 4'
So we have:
3x - 14 = 4
Add 14 to both sides:
3x = 18
Divide 3 to both sides:
x = 6
Step-by-step explanation:
The expression for the given statement "fourteen decreased by three times four" is written as 14 - (3×4), and its solution is 2.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The given statement "fourteen decreased by three times four" can be written in the form of expression as,
14 - (3×4)
Now, if we solve the expression, the solution will be,
14 - (3×4)
= 14 - 12
= 2
Hence, the expression for the given statement "fourteen decreased by three times four" is written as 14 - (3×4), and its solution is 2.
Learn more about Expression here:
https://brainly.com/question/13947055
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Every day Sandra eats 1/8 pound of blueberries. If she does this for 9 days, how many pounds of blueberries will she have eaten?
Answer:
1 1/8 pounds
Step-by-step explanation:
9 x 1/8 = 9/8 or 1 1/8
what's the double diameter of 10
Answer:
5
Step-by-step explanation:
5x2=10 and 10 is your diameter
Answer:
5
Step-by-step explanation:
10 /2=5
[tex]y = - .011x + 24.9[/tex]
describe this relationship in words.
Step-by-step explanation:
The given relation is :
[tex]y=-0.11x+24.9[/tex] ...(1)
We need to describe this relationship in words.
The general equation of a line is given by :
y = mx +c ...(2)
comparing equations (1) and (2).
m = -0.11 and c = 24.9
It shows that the slope of the line is -0.11 and the y-intercept is 24.9.
how do i graph x+3y=−12?
Answer:
it would be graphed at (0,-4)
x repersents 0, and y repersents -4.
Step-by-step explanation:
x - 21 = 19
x = please help
Answer:
x=40
Step-by-step explanation:
plz make the other person the brainliest thanks!
what is the opposite of 6.2
Answer:
Are you looking for -6.2?
Step-by-step explanation:
If not let me know!
Element X is a radioactive isotope such that every 22 years, its mass decreases by
half. Given that the initial mass of a sample of Element X is 50 grams, how long
would it be until the mass of the sample reached 41 grams, to the nearest tenth of a
year?
Answer: The time taken for the mass to reduce from 50 g to 41 g is 6 years
Step-by-step explanation:
Expression for rate law for first order kinetics is given by
[tex]t=\frac{2.303}{k}\log\frac{a}{a-x}[/tex]
where,
k = rate constant
t = age of sample
a = let initial amount of the reactant
a - x = amount left after decay process
a) for completion of half life:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
[tex]t_{\frac{1}{2}}=22 years[/tex]
[tex]k=\frac{0.693}{t_{\frac{1}{2}}}=\frac{0.693}{22}=0.0315years^{-1}[/tex]
b) for mass to reduce from 50 g to 41 g
[tex]t=\frac{2.303}{0.0315}\log\frac{50}{41}[/tex]
[tex]t=6years[/tex]
The time taken for the mass to reduce from 50 g to 41 g is 6 years
Which of the following has more than one pair of opposite parallel sides?
select all that apply
trapezoid
rhombus
rectangle
square
Answer:
Rectangle and also parallelograms as well.
Step-by-step explanation:
Rectangles have two pairs and four right angles. So more than one.
Answer:
-Square
-Rectangle
-Rhombus
what is the answer for 40 ÷ [(18 − 9) − (13 − 12)
Answer:
5
Step-by-step explanation:
How many 1/3-yard long pieces of wood can be cut from 1-yard long piece of wood?
Answer:
3 pieces
I hope this helps
Step-by-step explanation:
X(1/3) = 1
x/3 = 1
X= 1×3 = 3
I need help wit this
Answer:
i don't know how to explain the answew to you
Step-by-step explanation:
I need this answer hurry please
Answer:
21 ft²
Step-by-step explanation:
3*5 + 2*3 = 21
(my sister needs help with this)
Peter says 3
4 of a pizza is always the same
as 6
8 of a pizza. Nadia says while 3
4 and 6
8 are
equivalent fractions, 3
4 and 6
8 of a pizza could
represent different amounts.
Who is correct? Explain. Use a drawing to
justify your argument.
Use a counterexample to explain who
is correct
Answer:
Nadia is right
Step-by-step explanation:
if you use cross multiply 3/4 6/8. 8 x 3 = 24, 6 x 4 = 24, the two answer are both 24.
Dylan invested $700 in an account paying in interest rate of 1 3/4% compounded quarterly. Sebastian invested $700 in an account paying in interest rate of 1 1/4% compounded daily. After 12 years how much more money would Dylan have in his account than Sebastian
Answer: $57.25
Step-by-step explanation: