Answer:
x=0.9
Step-by-step explanation:
(ask me if u want it)
Can anyone help me with this answer?
Answer: B. 1.5 × 10⁻¹⁸
Step-by-step explanation:
Concept:
When multiplying exponents, add the exponents together.
When dividing exponents, subtract the exponents.
When converting scientific notation to an integer:
If the exponent is negative, move the decimal to the left with the same amount of units as the exponents. For example: If converting 5 × 10⁻³, since the exponent is -3, we move the decimal to the left 3 unitsIf the exponent is positive, move the decimal to the right with the same amount of units as the exponentsFor example: If converting 2 × 10⁴, since the exponent is 4, we move the decimal to the right 4 unitsWhen converting an integer to scientific notation:
If the number is ≥1, then count the moves of decimal point until the integer is 0<integer<10. The number of moves will be the exponent that is positive.For example: If converting 300, since there are two moves until it is left with 0<3<10. Thus, the scientific notation will be 3 × 10²If the number is <1, then count the moves of decimal point until the integer is 0<integer<10. The number of moves will be the exponent that is negative.For example: If converting 0.004, since there are three moves until it is left with 0<4<10. Thus, the scientific notation will be 4 × 10⁻³Given:
Mass of one water molecule = 3.0 × 10⁻²³
Total number of molecules (required by the question) = 50,000
Solve:
Formula
Total mass = Mass of one water molecule × Total number of molecules
Substitute the values into the formula
Total mass = 3.0 × 10⁻²³ × 50,000
Convert 50,000 into scientific notation
Total mass = 3.0 × 10⁻²³ × 5 × 10⁴
Multiply numbers together/ Multiply exponents together
Total mass = 15 × 10⁻¹⁹ = 1.5 × 10⁻¹⁸
Hope this helps!! :)
Please let me know if you have any questions
Read the scenario and select the equations that model the situation.
Kim and Eduardo are selling fruit for a school fundraiser. Customers can buy small and large boxes of tangerines. Kim sold 12 small boxes of tangerines and 6 large boxes of tangerines for a total of $276. Eduardo sold 9 small boxes of tangerines and 11 large boxes of tangerines for a total of $337. Find the cost of one small box of tangerines and the cost of one large box of tangerines.
A) 9S + 11L = 276
B) S + L = 276
c)12S + 6L = 337
D) 12S + 6L = 276
F) 9S + 11L = 337
G) S - L = 337
Answer: D and F
Step-by-step explanation:
This question requires TWO checkboxes to complete. Alex is building the fraction moted below to find the product of the experim 325 one-whole 4 1 ! d 공 중 중 1 a ! 1 6 중 Select the option that correctly completes each statement A 3 Alex can find the product by shading B 5 6 sections in each row. 2 6 15 The product of the expression 3 xãi is 6 f 15 풍 6 E. 75/6
Alex can find the product by shading 5 sections in each row. In this way, each shaded row represents 5/6.
Now, to find the product, Alex has to add the shaded values, that is,
\(\frac{5}{6}+\frac{5}{6}+\frac{5}{6}=\frac{5+5+5}{6}=\frac{15}{6}\)500000 x 396 / sqrt of 72
Cheeseburger01, If you are there and you find this please repply or answer!
It says your account was deleted and i'm worried.....
Answer:
the answer of 500000x396 is 198,000,000
Answer:
hey, will you tell (at symbol)MichiChan i cant go on pixelart? i keep getting an error 400 on it and i cant do anything. i dont want her to think im ignoring her...thanks
Step-by-step explanation:
:P
to find the product 203 times 197 without a calculator, priya wrote (200 3)(200-3) very quickly, and without writing anything else, she arrived at 39,991. explain how writing the two factors as a sum and a difference may have helped priya.
Priya arrived at the product 203 times 197, which is 39991, by utilizing the difference of squares formula. This approach allowed her to perform the calculation mentally and quickly without the need for a calculator.
Writing the two factors (203 and 197) as a sum and a difference, Priya used the difference of squares formula. The formula states that the product of a sum and a difference of two numbers is equal to the square of the first number minus the square of the second number.
In this case, Priya wrote (200 + 3)(200 - 3) instead of directly multiplying 203 and 197. By doing so, she was able to take advantage of the difference of squares formula.
Expanding the expression (200 + 3)(200 - 3) gives:
(200 + 3)(200 - 3) = 200^2 - 3^2
Now, simplifying further:
200^2 - 3^2 = 40000 - 9 = 39991
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question 1 what is the most likely reason that a data analyst would use historical data instead of gathering new data?
The most likely reason that a data analyst would use historical data instead of gathering new data is because the historical data may already be available and can provide valuable insights into past trends and patterns.
A data analyst would most likely use historical data instead of gathering new data due to its cost-effectiveness, time efficiency, and the ability to identify trends and patterns over a longer period. Historical data can provide valuable insights and inform future decision-making processes. Additionally, gathering new data can be time-consuming and expensive, so using existing data can be a more efficient and cost-effective approach. However, it's important for the data analyst to ensure that the historical data is still relevant and accurate for the current analysis.
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Write a possible equation for a cosine function that has a maximum point at (1, 11) and a minimum point at (8, 3).
M = A + |B| is the function's highest possible value. When sin or cos x equals 1, this maximum value is reached. m = A |B| is the function's lowest possible value. If either cos x or sin x is equal to 1, this minimum will be reached.
How do you find the maximum and minimum of a cosine function?The sine and cosine functions are graphed; to find the values of the sine and cosine functions for a variety of various degrees of angles, use a calculator, computer, or a collection of trigonometry tables (or radian).Because the sine and cosine functions have periods of 2, the patterns are continually repeated to the left and right.The sine and cosine functions can have a number of additional terms and factors added to them, changing how they look.The graph of the sine functions can be vertically shifted by adding the extra term A to the equation y = A + sin x. The sine function can have different amplitudes because to the additional element B in the equation y = B sin x. The graph's highest and minimum values, or one half of those values, make up the amplitude, or | B |, which is the maximum deviation from the x-axis. Both y = A + B sin x and y = A + B cos x are produced by combining these values. The minimum and maximum values for these two functions are specified by the following formulas. M = A + |B| is the function's highest possible value. When sin or cos x equals 1, this maximum value is reached. m = A |B| is the function's lowest possible value.If either cos x or sin x is equal to 1, this minimum will be reached.Example :
Draw the y = 1 + 2 sin x function on a graph. Which values represent the function's maximum and minimum?1 + 2 = 3 is the highest possible value. 1 + 2 = 1 is the minimum value.To Learn more About sin or cos refer To:
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Math algebra can u pls help
Answer:
\(9 - {x}^{2} = > 2 \\ - 77 = > 0 \\ 4 {x}^{3} = > 3 \\ 3 {x}^{2} + 5x + 2 = > 2 \\ 2x {y }^{2} + xy = > 3 \\ - 4x + 2 = > 1 \\ thank \: you\)
what is the limit of the infinite series? ∑n=1[infinity](5n54n5 5) enter your answer in the box. enter any fraction as a simplified fraction.
The limit of the infinite series \(\sum_{n=1}^{\infty} \frac{5n^5}{4n^{5.5}}\) is zero.
In this series, each term consists of the expression (5n⁵) divided by (\($4n^{5.5}$\)). We can simplify this expression by canceling out common factors:
\(\(\frac{{5n^5}}{{4n^{5.5}}} = \frac{5}{4} \cdot \frac{{n^5}}{{n^{5.5}}} = \frac{5}{4} \cdot \frac{1}{{n^{0.5}}} = \frac{5}{{4n^{0.5}}}\)\)
Now, let's analyze the behavior of the terms as n approaches infinity. As n increases, the denominator \($n^{0.5}$\) grows larger while the numerator remains constant. Consequently, the value of each term approaches zero.
Since the series consists of an infinite sum of terms approaching zero, the sum of the series also approaches zero as the number of terms increases.
Therefore, the limit of the infinite series \(\sum_{n=1}^{\infty} \frac{5n^5}{4n^{5.5}}\) is zero.
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please help i'm in the test first to answer will get BRAINLEST!
The laundry has been sorted into dark clothes and light clothes. The number of dark clothes is three more than twice the number of light clothes. The laundry is 60% dark clothes. Choose the equation that best represents this scenario. x over quantity 2x plus 3 equals 40 over 60 x over quantity 2x plus 3 equals 60 over 40 x over quantity 2x plus 3 equals 40 over 100 x over quantity 2x plus 3 equals 60 over 100
Answer:
x over quantity 2x plus 3 equals 40 over 60
Step-by-step explanation:
Let light clothes=x
Number of dark clothes = 2x + 3,
Dark clothes are 60% of total clothes
Light clothes=100%-60%
=40%
Light clothes / dark clothes = percentage of light clothes / percentage of dark clothes
x / 2x+3 = 40 / 60
x over quantity 2x plus 3 equals 40 over 60
Expression for this situation will be \(\frac{x}{2x+3}=\frac{60}{40}\).
Let the number of dark cloths = y
And the number of light cloths = x
"The number of dark cloths is three more than twice the number of light cloths".
Therefore, equation will be,
y = 2x + 3 ----- (1)
"The laundry is 60% dark cloths"
Equation for this statement will be,
y = \(\frac{60}{100}(x+y)\)
y = 0.6x + 0.6y
y - 0.6y = 0.6x
0.4y = 0.6x
\(\frac{y}{60}=\frac{x}{40}\)
Now substitute the value of y from equation (1),
\(\frac{2x+3}{40}=\frac{x}{60}\)
\(\frac{2x+3}{x}=\frac{40}{60}\)
\(\frac{x}{2x+3}=\frac{60}{40}\)
Therefore, expression for this situation will be \(\frac{x}{2x+3}=\frac{60}{40}\).
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1. Let the distribution of X be the normal distribution N (μ, σ2) and let Y = aX + b. Prove that Y is distributed as N (aμ + b, a2σ2).
2. Let X and Y be two independent random variables with E|X| < [infinity], E|Y| < [infinity] and E|XY| < [infinity]. Prove that E[XY] = E[X]E[Y].
1 Y is distributed as N(aμ + b, a^2σ^2), as desired.
2 We have shown that under these conditions, E[XY] = E[X]E[Y].
To prove that Y is distributed as N(aμ + b, a^2σ^2), we need to show that the mean and variance of Y match those of a normal distribution with parameters aμ + b and a^2σ^2, respectively.
First, let's find the mean of Y:
E(Y) = E(aX + b) = aE(X) + b = aμ + b
Next, let's find the variance of Y:
Var(Y) = Var(aX + b) = a^2Var(X) = a^2σ^2
Therefore, Y is distributed as N(aμ + b, a^2σ^2), as desired.
We can use the definition of covariance to prove that E[XY] = E[X]E[Y]. By the properties of expected value, we know that:
E[XY] = ∫∫ xy f(x,y) dxdy
where f(x,y) is the joint probability density function of X and Y.
Then, we can use the fact that X and Y are independent to simplify the expression:
E[XY] = ∫∫ xy f(x) f(y) dxdy
= ∫ x f(x) dx ∫ y f(y) dy
= E[X]E[Y]
where f(x) and f(y) are the marginal probability density functions of X and Y, respectively.
Therefore, we have shown that under these conditions, E[XY] = E[X]E[Y].
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PLEASE HELP!!!
The line plots show the number of kilometers that Jen and Denisha biked each week for 10 weeks.
Based on the data, who is more likely to ride a greater distance in the eleventh week? Move a word to each blank to complete the sentence. ____ is more likely to ride a greater distance because the ____ of her data is greater ^image
Jen
Mean
Mode
Denisha
Range
Answer: first blank: jen
second blank: mean
Step-by-step explanation:
N/A
Students in mrs smiths class must complete at least 40 math problems for homework every week. the table shows the progress of four students on Wednesday. Which list shows the names of students in order from the greatest amount of homework complete to the least amount of homework completed? A Katie, Jonah, D’Angelo. Grace B D’Angelo, grace, Jonah, Katie C Katie, Jonah, grace, D’Angelo D Jonah, Katie, D’Angelo, grace
Answer: the anwser is B
Step-by-step explanation:
Answer:
Grace, jonah,D'angelo,then Katie.
First,Grace because she finished it 100%
Next,it's Jonah because he finished it 2/3 the way meaning about around 70% of the work.
Then, D'angelo because he completed five more than Katie.
Last,Katie because she was less than jonah.She had 40 but D'angelo had five more than her
Please help! Will mark brainliest
Answer:
4(5)^2-5= 95
Hope this helps! :)
There are 15 sacks of rice in a van. If each sacks weight 110kg, what is the total weight of all sacks
Answer:
Step-by-step explanation:
So all that you have to do is just multiply 15 by 110kg and you'll get a answer of 1500kg total.
Consider the curve in R2 defined by the parametric equations x=t^2,y=−1/4t t>0. (a) Determine the points on the curve, if there are any, at which the tangent line is parallel to the line y=x. (Hint: Vectors parallel to y=x are ones whose components are equal.) (b) Determine the points on the curve at which it intersects the hyperbola xy=1.
(a) The curve defined by the parametric equations x = t^2, y = -1/4t (t > 0) represents a parabolic trajectory, the point of intersection between the curve and the hyperbola is (4∛2, -1/(4∛2)).
To find the points on the curve where the tangent line is parallel to the line y = x, we need to determine when the slope of the tangent line is equal to 1.
The slope of the tangent line is given by dy/dx. Using the chain rule, we can calculate dy/dt and dx/dt as follows:
dy/dt = d/dt(-1/4t) = -1/4
dx/dt = d/dt(\(t^2\)) = 2t
To find when the slope is equal to 1, we equate dy/dt and dx/dt:
-1/4 = 2t
t = -1/8
However, since t > 0 in this case, there are no points on the curve where the tangent line is parallel to y = x.
(b) To determine the points on the curve where it intersects the hyperbola xy = 1, we can substitute the parametric equations into the equation of the hyperbola:
\((t^2)(-1/4t) = 1 \\-1/4t^3 = 1\\t^3 = -4\\\)
Taking the cube root of both sides, we find that t = -∛4. Substituting this value back into the parametric equations, we get:
x = (-∛4)^2 = 4∛2
y = -1/(4∛2)
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a bee flies at 12 feet per second directly to a flowerbed from its hive. The bee stays at the flowerbed for 14 minutes, and then flies directly back to the hive at 8 feet per second. It is away frim the hive for a total of 16 minutes. what equation can can you use to find the distance of the flowerbed from the hive? How far is the flowerbed from the hive?
Answer:
(x/12 + 840 + x/8) = 960
576 feets
Step-by-step explanation:
Given that :
Speed to flower bed = 12 ft/s
Speed back to hive = 8 ft/s
Time spent at flower bed = 14 minutes = 14*60.= 840
Total time = 16 mins = (16 * 60) = 960
Let distance between bee hive and flower bed = x
Time taken to flower bed = x / 12
Time taken back to hive = x /8
(x/12 + 840 + x/8) = 960 - - equation
L.C.M of 12 and 8 = 24
(2x + 20160 + 3x)/ 24 = 960
(2x + 20160 + 3x) = 23040
5x = 23040 - 20160
5x = 2880
x = 2880 / 5
x = 576
Distance between flowerbed and hive = 576 feets
If I have a mean of 40 and a standard deviation of 35, would the normal distribution be an adequate model?
Answer:
Yes, it is an adequate model.
Step-by-step explanation:
In binomial distribution, the mean is expressed as;
μ = np
Now, for us to know whether to use normal distribution model, the condition is that;
np ≥ 5
Now, np < 5 for any reason, it means the normal distribution is not suitable.
Now, we are told that the mean is 40. This is more than the minimum of 5 and so the normal distribution is an adequate model for this distribution.
HELP PLEASE I NEED AN ANSWER FAST!!
Answer: 17
Step-by-step explanation: set 3x-9(TS)= to 42(PQ)
you should get 51=3x
divide by three and get 17 hope this helps
You are paid $1380 for working 80 hours in two weeks at your full-time job. At this rate of pay, how much would you be paid if ypu worked 100 hours in a month
Answer:
To answer this, we have to do the equation below:
\(1,380/80\)
When we do this, we come up with the answer of 17.25
Now we know that we get paid $17.25 an hour.
Now, we must do the equation below:
\(100 X 17.25\)
When we multiply, we get the answer of 1,725
So, we get paid $1,725 if we work for 100 hours.
Step-by-step explanation:
Hope this helps!
PLEASE MARK ME AS BRAINLIEST I REALLY WANT TO LEVEL UP
X = 18 is a solution to this equation X + 79 = 98 Question 4 options: True False
Answer:
false
Step-by-step explanation:
Michaela gets paid $12.45 per hour. If she works 5.5. hours, how much will she earn?
Answer:
68.48
Step-by-step explanation:
12.45*5.5=68.48
Please help solve the following its on "return on investment (ROI)" it dues today please!! thank you
$1.09 is Total return in investment .
What is investment?
Investments are assets that are bought or invested in to increase wealth and set aside cash from hard-earned income or gain. The main purpose of an investment is to provide an additional source of income or to generate a profit over a certain amount of time.
Any strategy for producing future revenue might be referred to as an investment. This involves, among other things, purchasing securities such as bonds, stocks, or real estate.
Total return in dollars = Profit / Initial investment
Highest = $67
Lowest = $32
no of shares price per share value
a b c = a * b
lowest price 1000 32 32000
highest price 1000 67 67000
profit = sale value - purchase value 35000
Total return in investment $1.09
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Use two-step procedure to select a simple random sample of EAI employees.
Click on the datafile logo to reference the data.
The input in the box below will not be graded, but may be reviewed and considered by your instructor.
Manager Annual Salary Training Program
1 75769.50 No
2 70823.00 Yes
3 68408.20 No
4 69787.50 No
5 72801.60 Yes
6 71767.70 No
7 78346.60 Yes
8 66670.20 No
9 70246.80 Yes
10 71255.00 No
11 72546.60 No
12 69512.50 Yes
13 71753.00 Yes
14 73547.10 No
15 68052.20 No
16 64652.50 Yes
17 71764.90 Yes
18 65187.80 Yes
19 69867.50 Yes
20 73706.30 Yes
21 72039.50 Yes
22 72973.60 No
23 73372.50 No
24 74592.00 Yes
25 75738.10 Yes
26 72975.10 Yes
27 72386.20 Yes
28 71051.60 Yes
29 72095.60 Yes
30 64956.50 No
31 71968.10 Yes
32 72245.20 No
33 72614.70 No
34 75339.40 Yes
35 70113.40 No
36 75392.80 Yes
37 69558.00 Yes
38 73062.60 Yes
39 66940.10 Yes
40 70131.20 No
41 77279.20 Yes
42 75295.90 Yes
43 66482.10 Yes
44 74276.00 No
45 69879.60 Yes
46 63754.70 Yes
47 76117.20 Yes
48 70487.80 Yes
49 66833.50 No
50 69285.50 Yes
51 68523.40 Yes
52 69782.20 No
53 74854.70 No
54 64457.10 No
55 72475.50 Yes
This can be achieved by using a truly random number generator and making sure that the random numbers are generated independently of each other.
what is probability?
Probability is a measure of the likelihood of an event occurring. It is expressed as a number between 0 and 1, where 0 means that the event is impossible and 1 means that the event is certain to occur.
A two-step procedure to select a simple random sample of EAI employees from the given data could be:
Step 1: Assign a number to each employee
We need to first assign a unique number to each employee in the given data set. For example, we can assign the numbers 1 to 55 to each employee in the order they appear in the data.
Step 2: Randomly select the employees
We can then use a random number generator to select a subset of employees from the assigned numbers. For example, if we want to select a sample of size 10, we can generate 10 random numbers between 1 and 55 using a random number generator.
We can then select the employees corresponding to these randomly generated numbers to obtain our simple random sample.
It's important to ensure that each employee has an equal chance of being selected for the sample.
Therefore, this can be achieved by using a truly random number generator and making sure that the random numbers are generated independently of each other.
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A coach travels from the station to the beach a distance of 576 km away in 6 hours . The coach is only allowed to travel at a maximum speed of 90km/h. Did the coach break the speed limit
Answer:
Yes he did break the speed limit
Step-by-step explanation:
If he stuck to the speed limit it would have taken him 6 hours to go 540 kilometers
Given that 1 /1−x =[infinity]∑n=0 x^n with convergence in (−1, 1), find the power series for 1/x with center 3.
[infinity]∑n=0 =
Identify its interval of convergence. The series is convergent from
x= , left end included (enter Y or N):
to x= , right end included (enter Y or N):
Answer: The interval of convergence is: x ∈ (2, 4) and the series is convergent from x=2, left end included, to x=4, right end included.
Step-by-step explanation:
To get the power series for 1/x with center 3, we can use the fact that:
1/x = (1/(x-3)) / (1/3)
Then, we can use the formula for the geometric series:
1/(1-r) = ∑n=0^∞ r^n, for |r| < 1
to obtain:
1/(x-3) = -1/(3(1-(x-3)/3)) = -1/3 ∑n=0^∞ ((x-3)/3)^n, for |(x-3)/3| < 1
Multiplying both sides by 1/3, we get:
1/x = -1/9 ∑n=0^∞ ((x-3)/3)^n, for |(x-3)/3| < 1
So, the power series for 1/x with center 3 is:[infinity]∑n=0 (-1/9) ((x-3)/3)^n
To obtain its interval of convergence, we note that the series converges if:|(x-3)/3| < 1 which is equivalent to:
-1 < (x-3)/3 < 1
Solving for x, we get:
2 < x < 4
Therefore, the interval of convergence is: x ∈ (2, 4)
And the series is convergent from x=2, left end included, to x=4, right end included.
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order the functions from narrowest to widest please help
The functions are arranged from narrowest to widest as follows
h(x) = 4x^2, g(x) = -2x^2, f(x) = 1/4 x^2How to arrange the functionsA function with a narrower graph has a smaller range of values for its independent variable (typically the x-axis). Here are some ways to identify functions with narrower graphs:
The coefficient of the polynomial, when the coefficient is greater the graph is narrower. The magnitude used here are the absolute values since the sign takes care of whether the graph face up or down.
Considering this we have that
|4| is the narrowest
|-2x| is wide
|1/4| is the widest
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Julio esta interesado en adquirir un nuevo teléfono celular el cual cuesta $3,200 en la tienda le ofrecen un 15% de descuento si lo compra de contado ¿cuando sería el precio con descuento para julio?
Answer:
$2720
15%= 480
3200-480=
$2720
what is a limitation for the formula for the present value of a growing perpetuity, pv = c/(r-g)
A limitation for the formula for the present value of a growing perpetuity, pv = c/(r-g), is that it assumes a constant growth rate (g) and a constant discount rate (r). This may not always be the case in real-world scenarios, where growth rates and discount rates can fluctuate over time. Additionally, the formula assumes that the perpetuity will continue indefinitely, which may not be realistic for some investments. It is important to keep these limitations in mind when using the formula for the present value of a growing perpetuity.
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