The radius of a hydrogen atom is 0.000000000025 meter. How would you express this radius in scientific notation?
Answers
Answer:
2.5x10^-11
Step-by-step explanation:
Related Questions
The formula a = vf - vi / t is used to calculate acceleration as the change in velocity over the period of time. solve the formula for the final velocity, vf, in terms of initial velocity, vi, acceleration, a, and time, t
Answers
The formula for the final velocity,\(v_{f}\) , in terms of initial velocity, vi, acceleration, a, and time, t is given by \(V_{f}=at+V_{i}\)
A =\((V_{f}-V_{i} )/t\) You can put \(1\) under A and then cross multiply.
\(at =V_{f} -V_{i}\)
Get \(V_{f}\) by adding \(V_{i}\) in both sides of the equation.
\(at+V_{i} =V_{f}\)
OR
The final speed \(V_{f}\) in terms of other parameters is given by the relation \(V_{f}\)\(=at+V_{i}\)
How to calculate the acceleration of an object?
Mathematically, acceleration is calculated using this formula:
\(a=(V_{f}-V_{i} )/t\)
Where:
Vf is the final velocity.Vi is the initial velocity.t is time measured in seconds.Making \(V_{f}\) the subject of the formula, we have:
\(at =V_{f} -V_{i}\)
\(V_{f} =V_{i} +at\)
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which property would allow you to use mental computation to simplify the problem 27+15+3+5?
Answers
Answer:
addition
Step-by-step explanation:
There is only plus signs
Please help me someone
Answers
I can explain how I got my answer if you want.
Work out the equation of the line which passes throught the point (-1,2) and is parallel to the line y=x+4
Answers
Answer:
y = x + 3
Step-by-step explanation:
In point slope form, the equation of line is,
\(y - b = m(x - a)\)
where a and b correspond to the x and y coordinates of the given point and m is the slope
Since the line is parallel to y = x+4, it has the same slope so m = 1 since the slope of y = x+4 is 1
and putting the values of the point (-1,2), we get,
y - 2 = x - (-1)
y-2 = x + 1
y = x + 3
Which option please I need help ASAP reply ASAP
Answers
Answer:
The answer is probably c
Step-by-step explanation:
its deducted by the x axis
Answer:
B
Step-by-step explanation:
For a certain type of hay fever, Medicine H has a 30% probability of working. In which distributions does the variable X have a binomial distribution?
Select EACH correct answer.
A. When the medicine is tried with two patients, X is the number of patients for whom the medicine worked.
B. When the medicine is tried with six patients, X is the number of patients for whom the medicine does not work.
C. When the medicine is tried with six patients, X is the number of patients for whom the medicine worked.
D. When the medicine is tried with two patients, X is the number of doses each patient needs to take.
Answers
The variable X has a binomial distribution in the following distributions:
A. When the medicine is tried with two patients, X is the number of patients for whom the medicine worked.
C. When the medicine is tried with six patients, X is the number of patients for whom the medicine worked.
What is binomial distribution?In a binomial probability distribution, the number of "Successes" in a series of n experiments is represented as either success/yes/true/one (probability p) or failure/no/false/zero (probability q = 1 p), depending on the outcome's boolean value.
In a binomial distribution, we have a fixed number of independent trials (in this case, the number of patients), and each trial has only two possible outcomes (success or failure). The probability of success remains the same for each trial (in this case, the probability of the medicine working is 30%).
Option B does not represent a binomial distribution since it counts the number of patients for whom the medicine does not work, which is the complement of success. Option D is not a binomial distribution as it counts the number of doses each patient needs to take, which is not a success/failure outcome.
So, the correct answers are:
A. When the medicine is tried with two patients, X is the number of patients for whom the medicine worked.
C. When the medicine is tried with six patients, X is the number of patients for whom the medicine worked.
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This graph shows the weights of some squashes at farmers' market: Weights of squashes W X 8 3 8 5 6 3 Pounds How much heavier is the heaviest squash than the lightest squash? Write your answer as proper fraction, mixed number, or whole number: pounds Submit dontt know thls yet > 9.52
Answers
1/2
what is whole number?
All natural numbers and 0 are included in the category of whole numbers. They are a subset of real numbers, which exclude negative numbers, decimals, and fractions. Whole numbers include counting numerals as well.
According to question,
heaviest squash than the lightest squash are,
\(7/8-3/8=4/8\)
\(=1/2\)
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Determine the equation of the tangent to x− 3x +1 at the point (3,1)
Answers
9514 1404 393
Answer:
y = 3x -8
Step-by-step explanation:
We assume you want the tangent to the parabola y = x² -3x +1 at the given point. The slope is found using the derivative of the function at that point.
y' = 2x -3
At x=3, the slope is ...
y' = 2(3) -3 = 3
The equation of the line through point (3, 1) with a slope of 3 is ...
y -1 = 3(x -3) . . . . use the point-slope form of the equation for a line
y = 3x -9 +1 . . . . . eliminate parentheses, add 1
y = 3x -8
Identifying the values a, b, and c is the first step in using the Quadratic Formula to find solution(s) to a quadratic equation.
What are the values a, b, and c in the following quadratic equation?
−6x2 = −9x + 7
A) a = 9, b = 7, c = 6
B) a = −9, b = 7, c = −6
C) a = −6, b = 9, c = −7
D) a = −6, b = −9, c = 7
Answers
The values a, b, and c in the quadratic equation \(-6x^2 = -9x + 7\) are:
a = -6, b = -9, c = 7.
What are the coefficients in the given quadratic equation?To identify the values a, b, and c in a quadratic equation, we need to understand the standard form of a quadratic equation: \(ax^2 + bx + c = 0\). In this case, we have\(-6x^2 = -9x + 7\). By rearranging the equation to match the standard form, we get \(-6x^2 + 9x - 7 = 0\). Comparing the coefficients of \(x^2\), x, and the constant term, we can determine the values of a, b, and c.
In this equation, the coefficient of \(x^2\) is -6, which corresponds to the value of a. The coefficient of x is -9, representing the value of b. Lastly, the constant term is 7, indicating the value of c. Therefore, the values a, b, and c in the quadratic equation are a = -6, b = -9, and c = 7.
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Answer:
C
Step-by-step explanation:
took the test :)
54 is 32% of what number? Round to the nearest hundredth if necessary.
Answers
Answer:
The answer 168.75 without rounding and rounding its also 168.75
Elementary Topology:
Let A and B be two connected sets such that An B +0. Prove that AU B is also connected.
Answers
The answer based on the Elementary Topology is we conclude that AU B is connected. Hence, the proof by below given solution.
Let A and B be two connected sets such that An B +0.
To prove that AU B is also connected, we need to show that there exists no separation of the union set into two non-empty, disjoint and open sets (or the union is connected).
Proof:
Assume that AU B is not connected and there exists a separation of the union set into two non-empty, disjoint and open sets, say C and D.
Since A and B are connected, they cannot be split into two non-empty, disjoint and open sets.
Hence, the sets C and D must contain parts of both A and B.
WLOG, let's say that C contains a part of A and B.
Thus, we have:
C = (A∩C) U (B∩C)
Now, (A∩C) and (B∩C) are non-empty, disjoint and open in A and B respectively.
Moreover, they are also non-empty and form a separation of A∩B, which contradicts the assumption that A∩B is connected.
Therefore, our assumption that AU B is not connected is incorrect.
Thus, we conclude that AU B is connected.
Hence, the proof.
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1/5 de los animales en el zoológico son monos 5/7 de los monos son machos
¿Qué fracción de los animales en el zoológico son monos machos?
Answers
1/7 of the animals in the zoo are male monkeys.
What fraction of the animals in the zoo are male monkeys? Explain with workings.
To find the fraction of animals in the zoo that are male monkeys, we have to calculate the product of the fractions representing the proportion of monkeys and the proportion of male monkeys among them.
Given that 1/5 of the animals in the zoo are monkeys, we will then represent this as:
= 1/5
= 5/25.
And 5/7 of the monkeys are male which is written as 5/7.
To get fraction of male monkeys, we will multiply these two fractions:
= (5/25) * (5/7)
= 25/175
= 1/7.
Full question:
1/5 of the animals in the zoo are monkeys 5/7 of the monkeys are male. What fraction of the animals in the zoo are male monkeys?
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3. (a) Determine the sum of the interior angles of the polygon below.
(b) Determine the measure of the angle indicated by the letter, a, in the polygon.
Answers
Answer:
A) 720
B) a=120
Step-by-step explanation:
A) 6 sided polygon interior angle sum is (6-2)*180=720.
B) 90+110+115+160+125+a=720, a=120
what dose Graph x \geq -1x≥−1x, is greater than or equal to, minus, 1. mean
Answers
The meaning of the graph is that the value of x is no less than -1
How to determine the meaning of the graphFrom the question, we have the following parameters that can be used in our computation:
x ≥ − 1
The above expression is an inequality that implies that
The value of x is no less than -1
Next, we plot the graph
See attachment for the graph of the inequality
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Question
What does the graph of x ≥ −1 mean?
suppose your heart is bealing 72 times per minute Al this rate, how many times will it beat in 15 minutes?
Answers
Answer:
1080 times
Step-by-step explanation:
72*15=1080
It will beat 1080 times
Answer:
1080
Step-by-step explanation:
72 beats per minute times 15 minutes = 1,080 beats in 15 minutes.
What is the slope of the line represented by the equation 3x+4y= 1/2? –4/3 –3/4 3/4 4/3.
Answers
Answer:
-3/4 is the slope
Step-by-step explanation:
3x + 4y = 1/2
4y = -3x + 1/2
y = -3/4x + 0.125
m = -3/4
Suppose Z₁, Z2, ..., Zn is a sequence of independent random variables, and Zn~ N(0, n). (a) (5 pts) Find the expectation of the sample mean of {Zi}, i.e., 1 Z₁. n (b) (5 pts) Find the variance of
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Var (Zn) = n Using this result, Var(Z) = n+n+…+n/n²= n/n= 1 Hence, the variance of Z is 1.
Given: Z₁, Z₂, ..., Zn is a sequence of independent random variables and Zn ~ N(0, n).
(a) Find the expectation of the sample mean of {Zi}, i.e., 1 Z₁. nAs given, Z₁, Z₂, ..., Zn is a sequence of independent random variables, and Zn~ N(0, n). The expected value of the sample mean of {Zi} is given by, E(Z) = E(Z₁+Z₂+…+Zn)/n⇒ E(Z) = E(Z₁)/n+ E(Z₂)/n+…+E(Zn)/n Now, E(Zn) = 0 (given)
Therefore, E(Z) = 0/n+0/n+…+0/n = 0
Hence, the expected value of the sample mean of {Zi} is 0.
(b) Find the variance of Z. The variance of the sum of the independent variables is given by, Var(Z₁+Z₂+…+Zn) = Var(Z₁)+Var(Z₂)+…+Var(Zn)Therefore, Var(Z) = Var(Z₁)+Var(Z₂)+…+Var(Zn)/n² Now, as given, Zn~ N(0, n).
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Candice leaves on a trip driving at 25 miles per hour.four hours later,her sister liz starts from the same location driving at 50 miles per hour.how long after liz leaves home will she catch up to candie
Answers
Answer:
Step-by-step explanation:
Candice = 25mph for 4 hours.
Candice has driven= 25 * 4= 100miles.
Liz =50mph
Liz time to catch up to candice= 50 * 2= 100miles.
Therefore, It would have taken Liz two hours to catch up with Candice
Under her cell phone plan, Ava pays a flat cost of $70 per month and $4 per gigabyte. She wants to keep her bill under $90 per month. Use the drop-down menu below to write an inequality representing gg, the number of gigabytes she can use while staying within her budget.
Answers
Answer:
Inequality: 4g + 70 < 90
Step-by-step explanation:
Given that:
Flat cost per month = $70
Cost per gigabyte = $4
Budget amount = under $90
As she wants to keep the budget under 90, then we will use less than sign to form the inequality.
Let,
g be the number of gigabytes.
4g + 70 < 90
Hence,
Inequality: 4g + 70 < 90
Answer:
g<5
Step-by-step explanation:
Have a good day :)
two trains leave the station at the same time, one heading east and the other west. the eastbound train travels at a rate of miles 65 per hour. the westbound train travels at a rate of miles 85 per hour. how long will it take for the two trains to be miles apart?
Answers
It will take 3.33 hours for the two trains to be 500 miles apart.
To solve this problem, we can use the formula distance = rate x time. Let's assume that the trains start out x miles apart from each other. As they travel in opposite directions, they will be moving away from each other at a combined rate of 65 + 85 = 150 miles per hour.
We want to find out how long it will take for the two trains to be y miles apart, so we can set up an equation:
y = 150t
where t is the time in hours.
To solve for t, we can divide both sides by 150:
t = y/150
So if we want to find out how long it will take for the two trains to be 500 miles apart, we can substitute y = 500:
t = 500/150 = 3.33 hours (rounded to two decimal places)
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Help me I don’t know if it -7 and -12
Answers
Answer:
I think it's-12
I am not sure
Please ask to some one else please
X < -7
Explain:
becky is planning a 2,100-mile trip to st. louis to visit a college. her car averages 30 miles per gallon. about how many gallons will her car use on the trip?
Answers
Becky's car will use 70 gallons of gas on the trip.
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. What can be values and units.Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.Recognizing the units and values is crucial when using the unitary technique to a problem.Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things.We are aware of the quantity of apples and the amount of money in the aforesaid problem.Hence, Becky's car will use 70 gallons of gas on the trip.
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-6.47 divided by 0.04 long division SOMEONE PLEASE HELP ME ASAP AND SHOW ME HOW YOU GOT THE ANSWER WITH LONG DIVISION !!!!!! 20 points for it ! Round by hundredths place if you need to -
Answers
Answer:
This may be the answer....
Among all the points on the graph of z=11-x^2-y^2 that lie above the plane x + 3y + 4z = 0: find the point farthest from the plane. What are the values of x, y, and z for the point? x= y= z=
Answers
The value of point farthest from the plane is {Mod-(x + 3y + 4(11 - x² - y²))} / √26 units and the values of x, y, and z for the point is 1/8, 3/8, and 347/32.
What is the distance from a point to a plane?
The length of the perpendicular that is dropped from a point to touch a plane is actually the smallest distance between them.
Distance between point and plane:
The distance from (x₀, y₀, z₀) to the plane Ax +By + Cz + D = 0 is
Distance = {Mod-(Ax₀ +By₀ + Cz₀ + D)} / √(A² + B² + C²)
As given,
Z = 11 - x² - y² and plane x + 3y + 4z = 0.
From formula:
D(x, y, z) = {Mod-(Ax₀ +By₀ + Cz₀ + D)} / √(A² + B² + C²)
Substitute values respectively,
D(x, y, z) = {Mod-(x + 3y + 4z)} / √(1² + 3² + 4²)
D(x, y, z) = {Mod-(x + 3y + 4z)} / √(1 + 9 + 16)
D(x, y, z) = {Mod-(x + 3y + 4z)} / √26
Substitute value of z,
D(x, y, z) = {Mod-(x + 3y + 4(11 - x² - y²))} / √26
For farthest point: Dₓ = 0;
1 - 8x = 0
8x = 1
x = 1/8
Similarly, for farthest point: Dy = 0;
3 - 8y = 0
8y = 3
y = 3/8
Substitute obtained values of x and y respectively,
z = 11 - x² - y²
z = 11 - (1/8)² - (3/8)²
z = 347/32
So, the farthest points are,
x = 1/8, y = 3/8, and z = 347/32.
Hence, the value of point farthest from the plane is Mod-(x + 3y + 4z)/√26 units and the values of x, y, and z for the point is 1/8, 3/8, and 347/32.
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do you need help with geometry?? Let me help
send me your questions and i will help you!
Answers
Answer:
Thank you!!!!!
Step-by-step explanation:
That's so nice but i'm good right now but thank you!
#57 will give brainliest to the best answer. please explain
Answers
Answer:
(x+y)(z+1)
Step-by-step explanation:
trust me .......
Answer:
(x+y) (z+1)
Step-by-step explanation:
xz + x + yz + y
- group the first two terms and the last two terms.
(xz + x ) + yz + y
- factor out the greatest common factor (GCF) from each group.
x (z + 1) + y (z + 1)
- factor the polynomial by factoring out the greatest common factor, z + 1.
(x+y) (z+1)
on a map where each unit represent one kilometer, two marainas are located at p(4,2) and Q(8,12). if a boat travels in a straight line from one marina to the other, how far does the boat travel?
Answers
Answer: 5 kilometers.
Step-by-step explanation:
A piece of cheese is shaped like a triangle. it has a height of 3.5 inches and a base that is 4.25 inches long. if 1 inch = 2.54 centimeters, find the area of the cheese in square centimeters. round the answer to the nearest square centimeter. 20 cm2 10 cm2 96 cm2 48 cm2
Answers
The area of the cheese in square centimeters as calculated from the given data is 48 cm^2.
The inches must be converted to square cm.
We multiply 3.5 2.54 to get 8.89. This can be rounded up to 8.90.
We also multiply 4.25 2.54 to get 10.79500. This can be rounded up to 10.80.
The formula for calculating the area of a triangle is area = hb/2.
We enter the figures into the formula: 8.90 * 10.80 / 2
8.90 × 10.80 = 96.12\s96.12 / 2 = 48.06
48 cm^2 is obtained by rounding 48.06 to the closest cm square .
A triangle is a three-sided polygon with three vertices. The angle produced within the triangle is 180 degrees. It signifies that the total of a triangle's internal angles equals 180°.
It is the polygon with the fewest sides. In other words, a triangle is a three-sided two-dimensional shape with inner angles of 180°.
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pls help i need it to bring my grade up please double cheak the work
Answers
The area of the given figure which has the shape of a trapezium would be = 58.5cm²
How to calculate the area of the trapezium given above?To calculate the area of the trapezium given above, the formula for area of a trapezium should be used and this is given below;
Area of a trapezium= 1/2(a+b)h
Where;
a= 12cm
b= 7.5cm
height= 6cm
Area of trapezium = 1/2(12+7.5) × 6
= 19.5×3 = 58.5cm²
Therefore, the area of the given shape above is calculated as 58.5cm²
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Solve. What is 9% of 56?
Answers
Answer:
it will be 5.04
Step-by-step explanation:
so we know 56=100%
so we want to get what 1% is so we divide both sides by 100 to get 0.56=1%
so know we multiply both sides of 9 to get 5.04=9%