Answers
Answer:
see below
Step-by-step explanation:
The first had 2 dots
The second has 4 dots
The third has 8 dots
The number of dots is doubling each time
D(n) = 2^n
This is a geometric sequence, we are multiplying the number of dots by 2 each time we go to the next stage
The geometric formula is
xn = a r^(n-1) where n is the stage and a is the number in the first stage and r is the common ratio
First had 2, then 4 then 8
Related Questions
PLEASE HELPPPPPP
What is 1.0x 10^5 written in standard notation???????
Answers
Answer: 100000
Step-by-step explanation:
= 1.0 × 105
(scientific notation)
= 1.0e5
(scientific e notation)
= 100 × 103
(engineering notation)
(thousand; prefix kilo- (k))
= 100000
(real number)
Answer:
100000.0
Step-by-step explanation:
you would move the decimal over 5 spaces
What is the solution to 9x-20-4x=40?
Answers
Answer:
5x-20=40
5x=40+20
5x=60
x=60/5
x=12
9x-20-4x=40
5x-20=40
5x=40+20
5x=60
answer: x=12
Jim is a furniture salesman. He can choose option A, a weekly pay of $300 plus 3.5% of his total sales or he can choose option B, to earn a flat rate of $550 for the week. Jim sells x dollars worth of furniture during the week
Answers
Jim should choose Option A preferable for sales above $7,142.86.
To determine which option is more advantageous for Jim, we can compare the earnings under each option based on Jim's total sales (x dollars).
Option A: Weekly pay of $300 plus 3.5% of total sales.
Earnings under Option A = $300 + 0.035x
Option B: Flat rate of $550 for the week.
Earnings under Option B = $550
To determine which option is more beneficial, we need to compare the earnings. If the earnings under Option A are higher than the earnings under Option B for a given value of x, then Option A is preferable. Otherwise, if the earnings under Option B are higher, then Option B is preferable.
Let's compare the two options for different values of x:
For Option A to be more advantageous:
$300 + 0.035x > $550
Simplifying the inequality:
0.035x > $550 - $300
0.035x > $250
Dividing both sides of the inequality by 0.035:
x > $250 / 0.035
x > $7,142.86
So, if Jim's total sales for the week (x) exceed $7,142.86, Option A would be more advantageous.
For values of x less than or equal to $7,142.86, Option B would be more advantageous.
It's important to note that this analysis assumes that Jim's earnings are solely based on either Option A or Option B, and there are no other factors or commissions involved in his compensation.
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Given the function
f(x) = -3x2 + 4
What is the additive inverse function of f(x)?
O g(x) = -3x2 - 4
O g(x) = -4x2 - 3
O g(x) = 3x2 - 4
O g(x) = 4x2 + 3
Answers
Answer:
C
Step-by-step explanation:
got it right on edge
Answer:
C
Step-by-step explanation:
g(x) = 3x2 – 4
David has 9 pieces of chocolate and 6 bags of skittles
1: Write a ratio comparing the number of bags of skittles to the number of pieces of chocolate.
2: what percent of David’s candy is chocolate?
Answers
x+1/2x+2/3x+4=30, which has one solution
"Match the polynomial on the left with the appropriately factored expression On the right. X^2 - 4x - 12 (2x + 3)(x - 4) 2x^2 _ Sx - 12 (3x 4)(x + 3) 3x^2 -9x- 12 3(x + I)(x - 4) (x - 6)(x + 2) (2x +3)(x + 4)
"
Answers
The polynomial and the factored expression that match with each other are given below:
[tex]X^2 - 4x - 12 : (x - 6)(x + 2)2x^2 + 5x - 12 : (2x + 3)(x - 4)3x^2 -9x- 12 : (x - 4)(3x + 1)[/tex]
Explanation:
To solve the given problem, we need to factorize the given polynomials first. Then, we can match them with the given factored expressions. To factorize each of the given polynomials:
Polynomial [tex]1: X^2 - 4x - 12[/tex]
Factorizing the given polynomial: We need to find the factors of -12 which add up to -4.-6 and 2 are the factors of -12 and add up to -4.
Hence,[tex]X^2 - 4x - 12 = (x - 6)(x + 2)[/tex]
Polynomial [tex]2: 2x^2 + 5x - 12[/tex]
Factorizing the given polynomial: We need to find the factors of 2 × -12 = -24 which add up to 5.-3 and 8 are the factors of -24 and add up to 5.
Hence, [tex]2x^2 + 5x - 12 = (2x + 3)(x - 4)[/tex]
Polynomial [tex]3: 3x^2 - 9x - 12[/tex]
Factorizing the given polynomial: We can factor 3 out from the given polynomial. [tex]3(x^2 - 3x - 4) = 3(x - 4)(x + 1)[/tex]
Hence, [tex]3x^2 - 9x - 12 = (x - 4)(3x + 1)[/tex]
Therefore, the polynomial and the factored expression that match with each other are:
[tex]X^2 - 4x - 12 : (x - 6)(x + 2)2x^2 + 5x - 12 : (2x + 3)(x - 4)3x^2 -9x- 12 : (x - 4)(3x + 1).[/tex]
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Heat is transferred through a piece of metal by _____. conduction convection radiation
Answers
Answer: conduction
Step-by-step explanation:
Answer:
conduction
Step-by-step explanation:
its obvioues lol
Tell whether you are finding a percent, part, or base. Then solve.
What is 25% of 50?
Answers
Answer:
You are trying to find the percentage of 50, 12.5
Step-by-step explanation:
Multiply 25 and 50; 25 x 50 = 1,250
Divide 1250 by 100
1250/100
= 12.5
Find the value of the variable. If your answer is not an integer, leave it in simplest radical form.
A.5√2 /2
B.5√3
C.5√2
D.5√3 /2
Answers
The value of the variable is A.5√2 /2
How to determine the valueWe are given to find the value of the variable 'x' in the figure.
We can see that the figure is a right-angled triangle with the length of the hypotenuse as follows:
h = 5 units.
Now, with respect to the angle of measure 45°, the length of the perpendicular is x units.
That is, p = x units.
From relations between trigonometric ratios, we have;
sin θ = opposite/hypotenuse
substitute the values, we get;
sin 45 = perpendicular/hypotenuse
1/√2 = p/h
1/√2 = x/5
cross multiply, we get;
x = 5/√2
x = 5√2/2
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i rlly need this asap i will award the bravest award to who ever gets it right
Answers
Answers in bold
b) 6xyc) 6xyIt's not a typo that the answers are the same for each.
Explanation:
There's not much to do for part b. The notation 6 * x can be shortened to 6x. The same can be said when going from 6*x*y to 6xy
For part c, the 2 and 3 multiply to 6. We end up with the same exact identical thing as part b. We leave the x and y as they are.
In a 2-sample z-test for two proportions, you find the following: X1 = 24 n1 = 200 X2 = 17 my = 150 You decide
to run a test for which the alternative hypothesis is Hj: p1 > p2- Find the appropriate test statistic for the
test. Enter the test statistic - round to 4 decimal places. Z =
Answers
The appropriate test statistic for this test is approximately 0.2103 (rounded to 4 decimal places).
To find the appropriate test statistic for a 2-sample z-test for two proportions, we need to calculate the standard error and then use it to compute the z-score. The formula for the standard error is:
SE = sqrt[(p1 * (1 - p1) / n1) + (p2 * (1 - p2) / n2)]
Where p1 and p2 are the sample proportions, and n1 and n2 are the sample sizes.
In this case, we have the following values:
X1 = 24 (number of successes in sample 1)
n1 = 200 (sample size 1)
X2 = 17 (number of successes in sample 2)
n2 = 150 (sample size 2)
To calculate the sample proportions, we divide the number of successes by the respective sample sizes:
p1 = X1 / n1 = 24 / 200 = 0.12
p2 = X2 / n2 = 17 / 150 = 0.1133
Now, we can plug these values into the formula to calculate the standard error:
SE = sqrt[(0.12 * (1 - 0.12) / 200) + (0.1133 * (1 - 0.1133) / 150)]
SE ≈ 0.0319
Finally, the test statistic (z-score) is calculated by subtracting the two sample proportions and dividing by the standard error:
Z = (p1 - p2) / SE
Z = (0.12 - 0.1133) / 0.0319
Z ≈ 0.2103
Therefore, the appropriate test statistic for this test is approximately 0.2103 (rounded to 4 decimal places).
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Given: NM || PO and Angle 1 is congruent To angle 3
Prove: LM || NO
Given
Transitive property
Alternate interior angle theorem
Converse alternate interior angle theorem
Answers
Answer:
i. LM || NO (converse alternate interior angle theorem)
ii. <1 ≅ <2 (alternate interior angle theorem)
Step-by-step explanation:
Two or more lines are said to be parallel if they do not meet when extended, even till infinity.
Alternate angles are said to be equal in measure.
Given that;
<1 ≅ < 3,
Since <2 ≅ <3 (alternate interior angle theorem)
Then,
<1 ≅ <2 (transitive property)
Also,
<1 ≅ <2 (alternate interior angle theorem)
Therefore since <1 ≅ <2, thus;
LM || NO (converse alternate interior angle theorem)
∠1 and ∠2 are alternate interior angles .
Alternate interior anglesAlternate interior angles are the angles formed when a transversal intersects two coplanar lines. Alternate interior angles are congruent. Therefore,
∠2 ≅ ∠3 (alternate interior angles)
Since line LM is parallel to line NO, ∠1 and ∠2 are alternate interior angles.
Therefore,
∠1 ≅∠2 (alternate interior angles)
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Please help I dont know how to do this
Answers
To find his initial weight subtract 60.5 (which was gained) from 140 (the total). 140 - 60.5 = 79.5kg as the initial weight.
The initial weight represent the y-intercept, and 5.5kg is your rate (slope)
y = 5.5x + 79.5
Choose the mixed number for this decimal.
2.1
A.
2
1
10
B. 2
C. 2
11
100
D.
12
100
Answers
How many cups of flour are needed if we increase the recipe by 50%?
2c. divided 100%= x c. divided by 150%
Answers
Answer:
the answer is 3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
b+7/5=-5
What does 'b' equal ?
Answers
B+1.4=-5
B=-6.4
1. m∠1=30 and m∠2=4x What is the value of x?
2. m∠3=5x and m∠4=75 What is the value of x?
3. m∠4=45 and m∠2=9x What is the value of x?
if m<1 = m<3 = 5x, m<2= 3x-60, and m<4= x, find the value of x
Answers
Rentite in simplest terms: - 10(9c – 7c+8) - 80
Answers
Answer:
-20c-160
Step-by-step explanation:
-10(9c-7c+8)-80
-10(2c+8)-80
-20c-80-80
-20c-160
A line goes through the points, (-3,1) and (-2,4)
What is the slope of the line? Show your work.
Write the equation of the line in point-slope form. Show your work.
Write the equation of the line in slope-intercept form. Show your work
Answers
Answer:
see below
Step-by-step explanation:
First find the slope
m = ( y2-y1)/(x2-x1)
= ( 4-1)/(-2- -3)
= (4-1)/(-2+3)
= 3/1
= 3
Point slope form is
( y-y1)= m(x-x1)
using the first point
y-1 = 3( x--3)
y-1 = 3(x+3)
using the second point
y-4 = 3(x - -2)
y-4 = 3(x +2)
Slope intercept form is
y = mx+b where m is the slope and b is the y intercept
y = 3x+b
Substituting a point into the equation
4 = 3(-2) +b
4 = -6 +b
Add 6 to each side
4+6 = b
10 =b
y = 3x+10
Answer: I just know that the slope would be 3. hope this helped :)
Slope intercept-y=3x+10
Step-by-step explanation:
4 minus 1/negative 2 minus negative 3
Then it makes it 3.
Find the first term and the common difference. -2, -9, -16, -23, ... a₁ d=
Answers
The first term of the given sequence is -2, and the common difference between consecutive terms is -7.
To find the first term and the common difference of the sequence -2, -9, -16, -23, ..., we observe the pattern in the sequence. Each term is obtained by subtracting 7 from the previous term.
The first term, denoted as a₁, is -2, which is the starting value of the sequence.
To find the common difference, we look at the difference between consecutive terms. The second term, -9, is obtained by subtracting 7 from the first term. Similarly, the third term, -16, is obtained by subtracting 7 from the second term, and so on.
Therefore, we can see that the common difference, denoted as d, is -7, as each term in the sequence is obtained by subtracting 7 from the previous term.
In conclusion, the first term of the sequence is -2, and the common difference between consecutive terms is -7.
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The math department at a university is hiring a new professor. Two candidates for the job will be interviewed by the same five current department members. Each member will score candidates on a scale of 1 to 10, according to several important criteria. From the candidates' applications, the department head suspects that Candidate 1 is more qualified for the job than Candidate 2. These data are best analyzed using a. a one-sample t procedure. b. a two-sample t procedure. c. a matched pairs procedure.
Answers
The data in this scenario are best analyzed using a two-sample t procedure. The reason is that there are two distinct groups or samples being compared: the scores given by the department members to Candidate 1 and Candidate 2.
The department head suspects that Candidate 1 is more qualified, and the objective is to determine if there is a significant difference in the scores between the two candidates. A two-sample t procedure allows for the comparison of means between two independent groups. It tests the null hypothesis that there is no difference in the means of the two groups. In this case, the null hypothesis would be that there is no significant difference in the scores given by the department members to the two candidates. By conducting a two-sample t-test, the department can assess whether the evidence supports the department head's suspicion and make an informed decision regarding the hiring process.
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Solve each system by elimination.
1) -10x – 3y=-12
6x + 3y = 0
Plz help
Answers
Answer:
gyxgdygdygadyqgygyuzfryur
Step-by-step explanation:
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
What is the transformed equation of f (x) = |x-4| + 1 after reflected over the x-axis?
Answers
This is as much as I could help you, unless you had a graph or the value of y
Sharpe ration in the financial market: S = ᵘ⁻ʳF/σ Sharpe ration in the real estate market from Cheng, Lin and Liu (2013-FR):
Sᵣₑ = ᵘ⁻ʳF
———————————————————————————————
(ᵤ²+(βᵀ)²σ²)σ²ₜₒₘ +σ² (1- (βᵀ)²
√(t+tₜₒₘ) (βᵀ)² σ²+2σ²βᵀ (1-βᵀ) + ——————————————— (ᵗ⁺ᵗₜₒₘ) 3. [5 points] Cheng, Lin and Liu (2017-JRER) develop the mixed-asset portfolio by extending the Modern Portfolio Theory (MPT) as follows, minᵣₑ, ₗ, T { w²ᵣₑ [ (u²ᵣₑ + β²σ²ᵣₑ) σ²ₜₒₘ + (β²T² + (1 - β)² + 2β (1 - β) T )σ²ᵣₑ]₊²ₗₜσ²₊₂ₚᵣₑₗ[₍₁₋β₎₊βₜ]√ₜσᵣₑσₗ } . s.tᵣₑTuᵣₑ + ₗTuₗ + (1 - ᵣₑ - ₗ )
Briefly discuss the difference between these two models and explain why the real estate should have its own asset allocation model.
Answers
The difference between the two models and why real estate should have its own asset allocation model.
The Sharpe ratio is a measure of risk-adjusted return. It is calculated by dividing the excess return of an investment over a benchmark by the standard deviation of the investment's returns. The higher the Sharpe ratio, the better the investment's risk-adjusted return.
The Cheng, Lin, and Liu model is a more complex model that takes into account the time horizon of the investment, the volatility of the investment, and the correlation between the investment and the benchmark. The model is designed to maximize the Sharpe ratio of the investment over a specified time horizon.
The real estate market is different from the financial market in several ways. Real estate is a illiquid asset, meaning that it can be difficult to sell quickly. Real estate is also a cyclical asset, meaning that its prices tend to go up and down over time. Real estate is also a heterogeneous asset, meaning that there is a wide variety of properties available, each with its own unique characteristics.
Because of these differences, the real estate market should have its own asset allocation model. A model that is designed for the financial market may not be appropriate for the real estate market. A real estate asset allocation model should take into account the illiquidity, cyclicality, and heterogeneity of the real estate market.
Here are some additional reasons why real estate should have its own asset allocation model:
Real estate is a long-term investment. The typical holding period for real estate is 10 years or more. This is different from the financial market, where the typical holding period is much shorter.
Real estate is a leveraged investment. This means that investors can use borrowed money to purchase real estate. This can magnify the potential returns of real estate, but it can also magnify the potential losses.
Real estate is a local investment. The value of real estate is often driven by local factors, such as the job market, the economy, and the demographics. This means that real estate investments should be tailored to the specific market in which they are located.
Overall, the real estate market is different from the financial market in several ways. These differences make it important for real estate investors to have their own asset allocation model.
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A Little League baseball stadium last row consists of 793 fans. The 11th row has 553 fans, the 12th row has 601 fans, the 13th row has 649 fans, and so on. How many rows are there?
Answers
Answer:
I am pretty sure it is 16 rows.
Step-by-step explanation:
I subtracted 601 by 553, and got 48. I did the same with 649 and 601 and got 48. You would then add 48 to 649 and keep going until you get to 793. Then you would count how many times you added. The times you added plus 13, should get you 16. You should have added 3 times in all
what are the linear factors of the function f(x) = 2x^3-x^2-13x-6
Answers
Answer:
Step-by-step explanation:
I have a calculator that figures this out. I have no idea how to do this manually.
f(x) = (x+2)(x-3)(2x + 1)
Which symbol creates a true sentence? (14 – 8) ÷ 2 _____ 14 – 8 ÷ 2 > =
Answers
Answer:
>
Step-by-step explanation:
(14 – 8) ÷ 2 is equal to 3
14 – 8 ÷ 2 is equal to 10
The correct symbol in the relation is (14 – 8) ÷ 2< 14 – 8 ÷ 2.
What is inequality?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
For example, Olivia is selected in the 12U Softball.
How old is Olivia? You don't know the age of Olivia, because it doesn't say "equals". But you do know her age should be less than or equal to 12, so it can be written as Olivia's Age ≤ 12. This is a practical scenario related to inequalities.
Given:
(14 – 8) ÷ 2 _____ 14 – 8 ÷ 2
Now, solving both expression we have
(14 – 8) ÷ 2
= 6 /2
=3
and, 14 – 8 ÷ 2
=14 - 4
=10
Hence, the correct symbol in the relation is (14 – 8) ÷ 2< 14 – 8 ÷ 2.
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Solve. x/4 + ½ = 1/8
x = ____ (Simplify your answer.)
Answers
Answer:
[tex] \frac{x}{4} + \frac{1}{2} = \frac{1}{8} [/tex]
[tex] \frac{x}{4} = - \frac{3}{8} [/tex]
[tex]x = - \frac{3}{2} = - 1 \frac{1}{2} [/tex]
The solution to the equation x/4 + 1/2 = 1/8 is x = -3/2.
Consider the equation, we have only one x term, so taking all the terms without x to the other side and terms with x on one side.
x/4 + 1/2 = 1/8
Take the 1/2 term on the other side,
x/4=1/8 - 1/2
Taking the LCM on the Right side,
x/4 = (1-4) / 8
x/4 = -3/8
Now, we have x/4 so what we can do is, shift the 4 to the other side too, we get,
x = ( -3/8) * 4
x = -3/2
The solution to the equation x/4 + 1/2 = 1/8 is x = -3/2.
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John bikes at a speed of 10 miles per hour. His friend Brian is slower, his biking speed is only
8 miles per hour.
Brian's yesterday's trip was 16 miles long. How many hours did Brian bike yesterday?
PLZZZZZZZZZ HELP QUICK
Answers
Answer:
2 hours
Step-by-step explanation:
You can use the relation ...
time = distance / speed
time = (16 mi)/(8 mi/h) = (16/8) h = 2 h
Brian biked for 2 hours yesterday.
Answer:
2 hours
Step-by-step explanation:
What is the slope of a line perpendicular to the line y = 2x + 5?
A. 1/2
B. -2
C. 2
D. -1/2
Answers
Answer: A
Step-by-step explanation: You get y = -2x +5, so the slope is –2. Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is 1/2. Plugging in the point given into the equation y = 1/2x + b and solving for b, we get b = 6. Thus, the equation of the line is y = ½x + 6.
