Answer:
3.48*10^-19
Step-by-step explanation:
We have the equation E = hf where h is planck's constant = aroung 6.63*10^-34 and f = frequency. We can then plug in the values and get the answer above.
3x+1=27x-2
X=
I need help in this pleaseeeeeeeee
Answer:
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Answer:
x=1/8
Step-by-step explanation:
First we need to isolate the variable. We can do that by subtracting 3 from each side. You then get: 24x-2=1. Then, to completely isolate it, add 2 to each side. We get 24x=3. Now divide 24 from each side to get only x. We get 3/24, which can be rewritten as 1/8.
Which process defines the Fibonacci sequence?
a. exclusive
c. inclusive
b. recursive
d. extensive
Answer:
Recursive.
Step-by-step explanation:
It is recursive because each new term depends on the previous two terms.
6x-5=4x+1
x=6
x=0.5
x=2
x=3
It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose we are interested in the number of California residents we must survey until we find a resident who does not have adequate earthquake supplies. a. In words, define the random variable X. b. List the values that Xmay take on. c. Give the distribution of X.X~ _____(_____,_____) d. WhatistheprobabilitythatwemustsurveyjustoneortworesidentsuntilwefindaCaliforniaresidentwhodoes not have adequate earthquake supplies? e. What is the probability that we must survey at least three California residents until we find a California resident who does not have adequate earthquake supplies? f. HowmanyCaliforniaresidentsdoyouexpecttoneedtosurveyuntilyoufindaCaliforniaresidentwhodoesnot have adequate earthquake supplies? g. How many California residents do you expect to need to survey until you find a California resident who does have adequate earthquake supplies?
Answer:
Step-by-step explanation:
We are given that 30% of California residents have adequate earthquake supplies.
a) Ramon variable X denotes the number of the california residents that have adequate earthquake insurance
B) x can take value 1 ,2 ,3 ......
C)The distribution of random variable is geometric distribution with parameter p=0.3
The pmf of geometric distribution is
[tex]P(X=x)=0.3(1-0.3)^{x-1} , x=1,2,3...[/tex]
D)P(X=1) or P(X=2)=P(X=1)+P(X=2)
P(X=1) or P(X=2)=[tex]0.3(1-0.3)^{1-1}+0.3(1-0.3)^{2-1}=0.51[/tex]
E)
[tex]P(X \geq 3)=1-P(X<3)\\P(X \geq 3)=1-(P(X=1)+P(X=2))\\P(X \geq 3)=1-0.51\\P(X \geq 3)=0.49[/tex]
F)
[tex]E(X)=\frac{1}{p}[/tex]
p is the resident who does not have adequate earthquake supplies.
p = 1-0.3 = 0.7
[tex]E(X)=\frac{1}{0.7}=1.42[/tex]
G)[tex]E(X)=\frac{1}{q}=\frac{1}{0.3}=3.33[/tex]
If bacteria have a growth rate of 100% every 20 minutes, how many will
there be after 120 minutes if you started with 1 bacteria?
David has two jobs. He earns $8 per hour babysitting his neighbor's children and he earns $11 per hour working at the coffee shop. If David worked 15 hours at the coffee shop, write an inequality to represent the number of hours, x, babysitting that David will need to work to earn a minimum of $200. Use the inequality to find the number of full hours he must babysit to reach his goal of $200.
Answer:
The number of full hours he must babysit to reach his goal of $200 is 5 hours
Step-by-step explanation:
Let x be the no. of hours he must babysit to reach his goal of $200.
Cost for working 1 hour at coffee shop = $11
Cost for working 15 hour at coffee shop = [tex]11 \times 15=165[/tex]
Cost for working 1 hour babysitting = $8
Cost for working x hour babysitting = 8x
We are supposed to find the number of full hours he must babysit to reach his goal of $200.
165+8x=200
8x=200-165
[tex]x=\frac{200-165}{8}[/tex]
x=4.375
Hence The number of full hours he must babysit to reach his goal of $200 is 5 hours
Ashley makes y dollars per hour. Richard makes three times as much. How much does Richard make per hour?
Richard makes 3y per hour.
Since there are no numbers indicating the wage, this is the only logical answer.
Birthday Polynomial Project Birthday October 9,2003 Help pls anyone
Answer: I don't know what you need help on with this question
Step-by-step explanation:
I would help if I knew
A regular hexagon is inscribed in a circle with radius 9 cm. Find the area
Answer:
121.5sqrt(3)
Step-by-step explanation:
Ok, so all regular hexagons are made out of 6 equilateral triangles. If the hexagon is inscribed in the circle, the radius lines up with a side of one of the 6 equilateral triangles and you get 6 equilateral triangles with a side length of 9.
The formula for an equilateral triangle's area is (a/2)^2 * sqrt(3) where a = side length. That means we just plug in 9 to find the area of one of these six triangles. We get 20.25sqrt(3).
We multiply this by 6 (to find the sum of the areas of 6 equilateral triangles) and get 121.5sqrt(3)
The area of the hexagon will be 210.4 cm².
What is a hexagon?The definition of a hexagon in mathematics and geometry is a polygon with six straight sides that is closed in two dimensions.
Given, a circle with a radius of 9 cm. which have a regular hexagon whose all corner touch the circle. If we draw a radius of a circle at the corner of the hexagon. then we get six equilateral triangles.
A regular hexagon is 6 equilateral triangles of side r and area
Area of triangle = (r/2)(√3r/2)
so the total area is
A(hex ) = (6/4) √3r² = 3√3(r²)/2
r = 9m so
A = 210.4m²
Hence the Area of the given hexagon is 210.4 square meters.
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what is the answer for this equation
-12 = x + 3
Answer:
-15
Step-by-step explanation:
-12-3=x
-15=x
x=-15
Answer:
X = -15
Step-by-step explanation:
-12 = x + 3
- 3 - 3
-----
-15 = x
I hate to ask, but please give me Brainliest. I need it to level up <3.
Please help me find the domain and range
Answer:
Domain: (-∞,-1) U (-1,∞)
Range: (-∞,1) U (0,∞)
What is -6x+4x in standard form? This is due today and I never understand these
Answer:
-2x would be the answer
Step-by-step explanation:
You have to combine like terms.
Find the zeros of r(x) = 8x2 + 4x +5.
Answer:
x= -21/4
Step-by-step explanation:
A company can secure additional capital without going into debt by doing
which of the following?
A. Going public
B. Taking a business loan
C. Buying out another company
D. Bargaining for wage reductions
Answer:
A. Going public should be the answer!
Let me know if thats right or not!
Answer:
When a company can secure an additional capital without going into debt the best and suitable answer is Going public.
You reverse the inequality symbol when you multiply or divide both sides of an inequality by the same negative number.
True or false?
Step-by-step explanation:
The statement is true, because when we multiply or divide both sides of an inequality by the same negative number we reverse the inequality symbol.
What is Inequality?A relation by which we can compare two or more mathematical expression is called an inequality.
Let an example of the inequality as;
⇒ 2x < 3
Multiply by - 1, we get;
⇒ - 2x > - 3
Thus, When we multiply or divide both sides of an inequality by the same negative number we reverse the inequality symbol.
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Julio es un joven muy emprendedor y ha iniciado un negocio de venta de audífonos y cargadores. Este mes, separa la cantidad de dinero, que ha obtenido en sus ventas, en dos partes: gastos y ganancias y se percata que están a razón de 5 es a 3. Del dinero que gasta, ⅗ lo gasta en compra de más mercadería, 10% en servicios de agua, luz e internet, el restante, S/ 150,60 lo gasta en su alimentación. ¿Cuánto ha sido su ganancia en este mes?
Answer:
Julio ha ganado 90,36 soles en este mes.
Step-by-step explanation:
Tras una lectura cuidadosa del enunciado podemos inferir que por cada 5 soles destinados al gasto hay 3 soles destinados a ganancias. En lo respectivo a los gastos, la razon del componente restante, cuyo valor es de 150,60 soles, es:
[tex]r = 1 - \frac{3}{5}-\frac{1}{10}[/tex]
[tex]r = 1 - \frac{6}{10}-\frac{1}{10}[/tex]
[tex]r = \frac{3}{10}[/tex]
En otras palabras, el componente restante corresponde al 30 % del dinero destinado a gastos. Entonces, el dinero total destinado a gastos es:
[tex]x = \frac{150,60\,soles}{0.3}[/tex]
[tex]x = 502\,soles[/tex]
Sabiendo la razón existente, es decir, 5 soles para gastos por 3 soles para ganancias, obtenemos la ganancia obtenida por Julio en este mes por la siguiente regla de tres simple:
[tex]y = 150,60\,soles \times \frac{3\,soles}{5\,soles}[/tex]
[tex]y = 90,36\,soles[/tex]
Julio ha ganado 90,36 soles en este mes.
I need help with my math problem
Answer:
C
Step-by-step explanation:
Y= -2(3)^2 - 3(3) -6
Y= -2(9) -9 - 6
Y= -18 - 15
Y= -33
Which relationship is an inverse variation?
x 2 4 6 8
f(x) 12 6 4 3
x 1 2 3 4
f(x) –1 –2 –3 –4
x 1 2 3 4
f(x) 4 16 36 64
x 2 4 6 8
f(x) 6 12 18 24
The relation that is an inverse variation is the one in the first table:
x 2 4 6 8
f(x) 12 6 4 3
Which relation is an inverse variation?An inverse variation between two variables x and y can be written as follows:
y = k/x
Where k is a constant.
Notice that x is on the denominator, so, as x increases, the value of y decreases.
Now, for example if we use the values of the first table:
x 2 4 6 8
f(x) 12 6 4 3
The first pair is (2, 12)
Replacing that in the inverse variation formula we get:
12 = k/2
12*2 = k
24 = k
For the second pair (4, 6) we will get:
6 = k/4
6*4 = k
24 = k
And so on for all the pairs. If the variation is inverse, you should always get the same value of k (like in this case).
So this is the correct answer.
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Name a linear pair.
Answer:
(angle AFB, angle BFC)
Answer:
angle afc
Step-by-step explanation:
An object was moving at a rate of 18.2 feet per second for 38.5 seconds. How far did the object travel?
Answer:
700.7
Step-by-step explanation:
You're looking for distance. So all you have to do is 18.2 x 28.5 and you'll get your answer.
Hope this helps. :)
The distance travelled 700.7 feet
What is speed- distance formula?Speed = Distance/Time – This tells us how slow or fast an object moves. It describes the distance travelled divided by the time taken to cover the distance. Speed is directly Proportional to Distance and Inversely proportional to Time. Hence,Distance = Speed X Time, and Time = Distance / Speed, as the speed increases the time taken will decrease and vice versa.given:
speed= 18.2 ft/ sec
time= 38.5 sec
So,
speed= Distance/ time
distance= speed * time
= 18.2 * 38.5
= 700.7 feet
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Trickets to the zoo cost $12 for adults and $8 for children. The school has a budget of $240 for the field trip. An equation representing the budget for the trip is 240=12x+8y where x representing the number of adults and y represents the number of children. Get your own graph of this equation
So select all the statement that are true
A. If 12 children go to the zoo, then 20 adults can go
B. If 18 children go to the zoo then 8 adults can go
C. If 4 adults go to the zoo then 30 children can go
D. If 16 adults go to zoo then 6 children can go
Answer:
is B
Step-by-step explanation:
If you multiplied 18 childrens x $8 and 8 adults x $12 you get 240
Answer:
The correct Answer is B
Step-by-step explanation:
Just did the Test.
Fit-quest charges a one-time registration fee of $50 plus $5 per fitness class. Fitnasium charges no registration fee, but charges $8 per fitness class. For how many fitness classes does Fitnasium cost less than or the same as Fit-quest?
Answer:
16
Step-by-step explanation:
50 + (5×16) 8×16
50 + 80 128
130. 128.
if she goes to gitnasium 1 more time then it eould be more than Fit-Quest.
16 of the fitness classes do Fitnasium cost less than or the same as Fit-quest.
What are Arithmetic operations?Arithmetic operations can also be specified by the addition, subtract, divide, and multiply built-in functions.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
/ Division operation: Divides left-hand operand by right-hand operand
For example 4/2 = 2
We have been given that Fit-quest charges a one-time registration fee of $50 plus $5 per fitness class. Fitnasium charges no registration fee, but charges $8 per fitness class.
Let the number of classes would be x
⇒ 50 + (5x) = 8x
Rearrange the terms of x in the above equation,
⇒ 8x - 5x = 50
⇒ 3x = 50
⇒ x = 50/3
Apply the division operation,
⇒ x = 16
Therefore, 16 of the fitness classes do Fitnasium cost less than or the same as Fit-quest.
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Look at image. Please help quick.
Answer:
its most likely B
Step-by-step explanation:
Determine whether the relation is a function.
((-6,6),(-1, 2), (2,-3), (5,5)}
Function
Not a function
Answer:
function
Step-by-step explanation:
every x value has only 1 y value
A group of workers can plant 56 acres in 7 days what is their rate in acres per day?
1. 16 X 19 =
Find the product.
10
9
90
10
100
6
60
54
Partial Products
What is the equation of the line that passes through the point (-5, 2) and has a
slope of 4/5 ?
Answer:
y - 2 = 4/5(x + 5)
Step-by-step explanation:
Well, the equation format your question is asking for is Point-slope form which is represented by:
[tex]y - y^{1} = m (x - x^{1})[/tex]
[tex]y^{1}[/tex] = y in point
[tex]x^{1}[/tex] = x in point
m = slope
Now, we have to input our values into our equation.
y - 2 = 4/5(x + 5)
Hope this Helps! :)
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Marisa runs a 400 meter race in 80 seconds. What is Marishas average speed for the race?
Answer:
5 meters per second
Step-by-step explanation:
average speed = total distace / total time
400 meters / 80 seconds = 5 meters per second
How would I do this using Volume and units. I will mark Brainiest
Answer:
Sphere:
V=[tex]\frac{4}{3}[/tex]π[tex]r^{3}[/tex]V≈523.6 [tex]cm^{3}[/tex]Cone:
V=π[tex]r^{2}[/tex][tex]\frac{h}{3}[/tex]V≈41.89 [tex]cm^{3}[/tex]
ill make brainllest if right