The fifth term of the binomial expansion is; 76545x³y⁴
How to solve binomial expansion problems?We are given the algebraic expression as; (3x - 3y)⁷
To solve this problem, we will make use of Pascals triangle which is the triangular array of numbers that begins with 1 on the top and with 1's running down the two sides of a triangle. Each new number will lie between two numbers and below them, and its value is the sum of the two numbers above it. It is expressed as;
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
1 6 15 20 15 6 1
1 7 21 35 35 21 7 1
Using binomial expansion, we have;
(3x - 3y)⁷ = 1(3x)⁷(-3y)⁰ + 7(3x)⁶(-3y)¹ + 21(3x)⁵(-3y)² + 35(3x)⁴(-3y)³ ...... 1(3x)⁰(-3y)⁷
= 2187x⁷ - 15309x⁶y + 45927x⁵y² - 76545x⁴y³ + 76545x³y⁴ - 45927x²y⁵......
The fifth term here is; 76545x³y⁴
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Robert can mow a 600 square lawn in 1 hour and 20 minutes. How many lawns in the same size's can he mow in 8 hours?
a bag contains 15 counters:7 red 4 blue and 4 green.a counter is taken out of the bag at random.what is the probability of choosing the following: a red or blue counter.
[tex]|\Omega|=15\\|A|=7+4=11\\\\P(A)=\dfrac{11}{15}\approx73.3\%[/tex]
Answer:
RED COUNTER: 7/15
BLUE COUNTER: 4/15
Hope it helps,
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cual es el vaolor de t-19=1
Answer:
t=20
Step-by-step explanation:
t-19=1
t-19(+19)=1+19
t=20
Find the volume of the composite figure. Round to the nearest tenth. 3cm 4cm 10cm 5 cm
The volume of the composite figure is 655.44 unit³.
How to illustrate the volume?The information is incomplete. An overview will be given. Let's assume that the shape is a cylinder.
The volume of a cylinder is πr²h
Assumed radius = 7
Assumed height = 4
The volume will be:
= πr²h
= 3.14 × 7² × 4
= 615.44 unit³
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The number 27 is ___?
-prime
-composite
Answer:
the number 27 is a composite
Step-by-step explanation:
Yes, since 27 has more than two factors . 1, 3, 9, 27. In other words, 27 is a composite number because 27 has more than 2 factors
Answer:
The number 27 is composite.
Find the slope of the line passing through the points (6, 4) and (6, -3).
Answer:
undefined
Step-by-step explanation:
slope = (y_2 - y_1)/(x_2 x_1)
slope = (-3 - 4)/(6 - 6)
slope = -7/0
Since division by zero is undefined, this line has undefined slope.
The isosceles trapezoid is part of an isosceles triangle with a 34° vertex angle. What is the measure of an acute base angle of the trapezoid? Of an obtuse base angle? The diagram is not drawn to scale.
I'll give 5 stars, brainliest and whatever you ask if you complete this question.
The list of data points used to generate the histogram is
x Frequency
15-20 0
20-25 4
25-30 6
30-35 3
35-40 4
40-45 0
45-50 3
Histogram data pointsFrom the question, we are to write the list of data points used to generate the given histogram
The list of data points used to generate the histogram is
x Frequency
15-20 0
20-25 4
25-30 6
30-35 3
35-40 4
40-45 0
45-50 3
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CORRECT ANSWER PLEASE!!!!! 150 points
Answer: -7
Step-by-step explanation:
First, lets use the functions to find the answer to f(-8) and g(4)
f(-8) is the same as asking for the value of y when x is -8
Therefore, f(-8) = -5 (according to the graph)
Using the same rule, g(4) would be the value of y when x = 4 which,
according to the graph, g(4) = 3
Plug these values back into the original equation to get:
[tex]-1*f(-8)-4*g(4)=?\\=-1*-5-4*3\\[/tex]
using the order of operations, we will multiply the values first
[tex](-1*-5)+(-4*3)\\=5+(-12)\\=5-12\\=-7[/tex]
Therefore, our final answer is -7Answer:
-7
Step-by-step explanation:
The intensity (1) of a light source is inversely proportional to the square of the distance (d) from the source. If the intensity is 16 lumens at a distance of 16 feet, what is the intensity at a distance of 14 feet? Round to the nearest hundredth.
The intensity at a distance of 14 feet is 18.29 ft
How to find the intensity of light?The intensity (I) of a light source is inversely proportional to the square of the distance (d) from the source.
Light intensity refers to the strength or amount of light produced by a specific lamp source
The light intensity is measured in terms of lumens per square foot or lumens per square meter.
Therefore,
I ∝ 1 / d²
Hence,
I = k / d²
where
I = intensity of lightd = distance form the sourceTherefore,
k = Id²
k = 16 × 16
k = 256
Hence,
I = 256 / 14
I = 18.2857142857
I = 18.29 ft
Therefore, the intensity at a distance of 14 feet is 18.29 ft
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On Sunday, a local hamburger shop sold a combined total of 320 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Sunday?
Answer:
80
Step-by-step explanation:
1) if the number of hamburgers is 'h', number of cheesburgers is 'c', then
2) the condition 'The number of cheeseburgers sold was three times the number of hamburgers' can be written as c=3h. Also
3) the condition 'combined total of 320' can be written as h+c=320, then
4) it is possible to make up the system of equations:
[tex]\left \{ {{c=3h} \atop {c+h=320}} \right. \ = > \ \left \{ {{c=240} \atop {h=80}} \right.[/tex]
5) finally, number of hamburgers is 80.
how to find the common factors and H.C.F of 20, 35, and 40
he instructions to find the LCM of 20, 35 and 40 are the next:
1. Decompose all numbers into prime factors
20 2 10 2 5 5 1
35 5 7 7 1
40 2 20 2 10 2 5 5 1
2. Write all numbers as the product of its prime factors
Prime factors of 20 = 22 . 5
Prime factors of 35 = 5 . 7
Prime factors of 40 = 23 . 5
3. Choose the common and uncommon prime factors with the greatest exponent
Common prime factors: 5
Common prime factors with the greatest exponent: 51
Uncommon prime factors: 2 , 7
Uncommon prime factors with the greatest exponent: 23, 71
4. Calculate the Least Common Multiple or LCM
Remember, to find the LCM of several numbers you must multiply the common and uncommon prime factors with the greatest exponent of those numbers.
LCM = 51. 23. 71 = 280
If m 3 = 80°, find m 7. Type a numerical answer in the space provided. Do not type degree symbols or spaces in your answer.
The value of m∠7, given the data from the question is 80°
Alternate angle theoremAlternate angle theorem states as follow:
When two parallel lines are cut by a line (i.e transversal), then the alternate interior angles or alternate exterior angles are aqual.
How to determine the value of m∠7From the diagram,
Line l and line m are parallel linesm∠3 and m∠7 are alternate anglesm∠3 = 80°m∠7 =?From the above, we can see that m∠3 and m∠7 are alternate angles.
Therefore,
m∠7 = m∠3
m∠7 = 80°
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Complete question
please see attached photo
Total Assets
Sales
Task 3: Preparing a Cash Flow Statement
Nikea Inc.'s income statement for the year 2013 is shown below:
During the year, the balances for the sales account, cost of goods sold, and gross profit
increased. This information is provided to you. Prepare the cash flow for operating activities,
using both the direct method and the indirect method.
Accounts
Nikea's income statement for the year 2013 is shown below.
Cost of Goods Sold
Gross Profit
Operating Expenses
Deprecation
Styles
Net Income
934,000 Total Liability & Stockholders Equity
Type your response here:
Amount ($)
600,000
14
(400,000)
200,000
(30,000)
(20,000)
150,000
934,000
4
Editin
The preparation of the Cash Flow Statement for Nikea Inc. for the year ended December 31, 2013, is as follows:
Direct Method:
Nikea Inc.
Cash Flow StatementCash received from customers $600,000
Cash paid to suppliers of goods (400,000)
Cash paid to vendors of servides (30,000)
Cash from operating activities $170,000
Indirect Method:
Nikea Inc.
Cash Flow StatementFor the year ended December 31, 2013
Net income $150,000
Add non-cash expenses:
Depreciation 20,000
Cash from operating activities $170,000
What is the difference between the direct method and the indirect method of Cash Flow Statement?The direct method of preparing the Cash Flow Statement starts with the operating income and adds the non-cash expenses to obtain the cash flow from operating activities.
On the other hand, the indirect method reconciles the accounts receivable and payable to extract the exact cash flows received from customers or paid to suppliers of goods and services.
Both methods of determining the cash flow from operating activities yield the same result.
Data and Calculations:Nikea’s income statement for the year 2013
Sales $600,000
Cost of Goods Sold (400,000)
Gross Profit 200,000
Operating Expenses (30,000)
Deprecation (20,000)
Net Income 150,000
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Which transformations could have occurred to map triangle ABC triangle A^ * B^ n C^ prime
Reflection and dilation is the transformation which will occur to map triangle ABC triangle to A^ * B^ n C^ prime.
What is a Triangle?This refers to a plane figure which has features such as three angles and three sides.
Reflection and dilation involves flipping and enlargement/reduction respectively which gives rise to the sides being changed.
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Answer:
c. a reflection and a dilation
Step-by-step explanation:
In Fig. 6.39, sides QP and RQ of ΔPQR are produced to points S and T respectively. If ∠SPR = 135° and ∠PQT = 110°, find ∠PRQ.
[tex] \: [/tex]
[tex] \leadsto \sf{ \pink{Pls \: give \: me \: correct \: answer!!}}[/tex]
Thank u :)
[tex] \huge{↬ \boxed{ \sf{ \pink{A\green{n \blue{s \color{yellow}w \red{e \orange{r}}}}}}}}[/tex]
Given: ∠SPR = 135° and ∠PQT = 110°To find: ∠PRQ[tex] \leadsto[/tex]According to Angle sum property of a triangle , sum of the interior angles of a triangle is 180°.
➱ ∠SPR + ∠QPR = 180° [Linear pair]
➱ 135° + ∠QPR = 180°
➱ ∠QPR = 180° - 135°
➱ ∠QPR = 45°.....(i)
➱ ∠PQT + ∠PQR = 180° [Linear pair]
➱ 110° + ∠PQR = 180°
➱ ∠PQR = 180° - 110°
➱ ∠PQR = 70°.....(ii)
Now,➛ ∠PQR + ∠QPR + ∠PRQ = 180° [Angle sum property of a triangle]
➱ 70°+ 45° + ∠PRQ = 180° [from (i) and (ii)]
➱ ∠PRQ = 180° - 115°
➥ ∠PRQ = 65°
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answer as soon as possible
The area of the equilateral triangle is 110.9 cm
How to find area of a triangle?area of a triangle = 1 / 2 bh
where
b = baseh = heightTherefore,
tan 60 = opposite / adjacent
tan 60 = 8√3 / x
x = 8√3 / √3
x = 8
hence,
b = 8 + 8 = 16
Therefore,
area of a triangle = 1 / 2 × 16 × 8√3
area of a triangle = 64√3
area of a triangle = 110.851251684
area of a triangle = 110.9 cm
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A pattern has 2 blue triangles to every 10 yellow triangles. What is the ratio of blue triangles to all triangles?
Answer:
2 : 12
Step-by-step explanation:
There are 2 blue triangles, so 2 will come first. It's then followed by the sum of blue and yellow, which is 2 + 10, which is 12. So, the ratio is 2 : 12.
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Five times a number decreased by nine is equal to twice the number increased by 23. Which equation could be used to solve the problem?
Answer:
The equation is 5x - 9 = 2x + 23.
The answer is option A.
Step-by-step explanation:
The diameter of a pipe is normally distributed, with a mean of 0.8 inch and a variance of 0.0004. What is the probability that the diameter of a randomly selected pipe will exceed 0.84 inch? (You may need to use the standard normal distribution table. Round your answer to three decimal places.) . Hint: take the square root of the variance to find the standard deviation.
The probability that the diameter of a randomly selected pipe will exceed 0.84 inch is 0.977
What is probability?Probabilities are used to determine the chances, likelihood, possibilities of an event or collection of events
How to determine the probability?The given parameters are:
Mean = 0.8
Variance = 0.0004
Calculate Standard deviation using
σ = √σ²
This gives
σ = √0.0004
Evaluate
σ = 0.2
Calculate the z-score at x = 0.84 using
z = (x - [tex]\bar x[/tex])/σ = √σ²
This gives
z = (0.84 - 0.8)/0.02
Evaluate
z = 2
The probability is then represented as:
P(x > 0.84) = P(z > 2)
Next, we look up the value of the z table of probabilities
From the z table of probabilities, we have:
P(x > 0.84) = 0.977
Hence, the probability that the diameter of a randomly selected pipe will exceed 0.84 inch is 0.977
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What is the values of x?
Answer:
x = 34
Step-by-step explanation:
complementary angle sum to 90°
sum the 2 angles and equate to 90
x + x + 22 = 90
2x + 22 = 90 ( subtract 22 from both sides )
2x = 68 ( divide both sides by 2 )
x = 34
a study of nickels showed that the standard deviation of the weight of nickels is 300 milligrams. A coin counter manufacture wishes to find the 90% confidence interval for the average weight of a nickel. What is the minimum number of nickels he needs to weigh to obtain an average accurate to within 20 milligrams?
Using the z-distribution, a sample of 609 nickels has to be weighed.
What is a z-distribution confidence interval?The confidence interval is:
[tex]\overline{x} \pm z\frac{\sigma}{\sqrt{n}}[/tex]
The margin of error is:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which:
[tex]\overline{x}[/tex] is the sample mean.z is the critical value.n is the sample size.[tex]\sigma[/tex] is the standard deviation for the population.For this problem, the parameters are:
[tex]M = 20, \sigma = 300, z = 1.645[/tex]
We solve for n to find the sample size, then:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]20 = 1.645\frac{300}{\sqrt{n}}[/tex]
[tex]20\sqrt{n} = 1.645 \times 300[/tex]
[tex]\sqrt{n} = 1.645 \times 15[/tex]
[tex](\sqrt{n})^2 = (1.645 \times 15)^2[/tex]
n = 608.9
Rounding up, a sample of 609 nickels has to be weighed.
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What is the value of c in the equation below?
22²=a=c
Answer:
484
Step-by-step explanation:
because a=22² , which is equal to 484
because a=22² , which is equal to 484, but a=c hence C is equal to 484
From its founding through 2012, the Rock and Roll Hall of Fame has inducted 303 groups or individuals. Forty-seven of the inductees have been female or have included female members.1 The full dataset is available in RockandRoll.
The probability of inductees who are female will be 0.155.
How to illustrate the probability?Question: What proportion of inductees have been female or have included female members?
From the information, 303 groups or individuals and forty-seven of the inductees have been female or have included female members.
Therefore, the proportion will be:
= 47/303
= 0.155
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Rectangle A has side lengths of 6\text{ cm}6 cm6, start text, space, c, m, end text and 3.5\text{ cm}3.5 cm3, point, 5, start text, space, c, m, end text. The side lengths of rectangle B are proportional to the side lengths of rectangle A.
What could be the side lengths of rectangle B?
Choose 2 answers:
The side lengths of rectangle is 3 cm and 1.75 cm and 5.25 cm and 9 cm.
According to the statement
we have given that Rectangle A has side lengths of 6 cm and 3.5 cm
And The side lengths of rectangle B are proportional to the side lengths of rectangle A.
And we have to Find that the What could be the side lengths of rectangle B?
A 3 cm and 1.75 cm
B 5 cm and 2.5 cm
C 7 cm and 7 cm
D 12 cm and 5 cm
E 5.25 cm and 9 cm
Here we see that the side B are proportional to side length A of rectangle.
So,
Let say sides of rectangle B are a and b corresponding to sides 6 and 3.5 cm
=> a/6 = b/3.5
=> a/b = 6/3.5
=> a/b = 12/7
A 3 cm and 1.75 cm
3/1.75 = 12/7
Hence this is proportional
B 5 cm and 2.5 cm
5/2.5 = 2 ≠ 12/7
Not Proportional
C 7 cm and 7 cm
7/7 = 1 ≠ 12/7
Not Proportional
D 12 cm and 5 cm
12/5 ≠ 12/7
Not Proportional
E 5.25 cm and 9 cm
9/5.25 = 36/21 = 12/7
Hence this is proportional
So, 3 cm and 1.75 cm and 5.25 cm and 9 cm could be the side lengths of rectangle B.
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? Question
Warm-Up
Given: AB || CD
m/ZYB = 60°
Prove: m/DXW = 120°
A
W
Z
Y/60°
X
Select the correct answer from each drop-down menu.
Statements
AB || CD
m/ZYB
ZYXDand ZDXWform a linear pair.
K
B
=
60°
m/YXD
m/DXW = 120°
Reasons
given
given
definition of a linear pair
corresponding angles have equal measures
The missing Statement and reason for the transverse line angles is; m∠YXD = 60° and Supplementary angles sum up to 180°.
How to prove congruent angles?Statement 1; AB ║ CD
Reason 1; Given
Statement 2; m∠ZYB = 60°
Reason 2; Given
Statement 3; ∠YXD and ∠DXW form a linear pair
Reason 3; Definition of Linear Pair
Statement 4; m∠YXD = 60°
Reason 4; Corresponding angles have equal measure.
Statement 5; m∠DXW = 120°
Linear pairs usually sum up to 180° because they are supplementary angles. Thus;
m∠YXD = 180° - 60° = 120°
Reason 5; Supplementary angles sum up to 180°.
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Multiply 3.4x and 1.2x.
4.08x2
4.6x2
4.08x
4.6x
Answer: 4.08x2
Step-by-step explanation:
Answer:
4.08x2
Step-by-step explanation:
On which intervals is the function increasing? Choose
all that apply.
The function is increasing on the intervals:
(-∞, 3] and [5, ∞)
Then the correct options are a and c.
On which intervals is the function increasing?
The function is increasing when, reading from left to right, we can see that the curve goes upwards.
By looking at the graph, we can see that the function increases between -∞ and 3, and also increases between 5 and ∞, then the correct options are a and c-
(-∞, 3] and [5, ∞)
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Last year, Kevin had 20,000 to invest. He invested some of it in an account that paid 6% simple interest per year, and he invested the rest in an account that paid 10% simple interest per year. After one year, he received a total of $1480 in interest. How much did he invest in each account?
$13,000 was invested at 6% whereas $7,000 was invested at 10% using simple interest approach
What is simple interest?
Simple interest is determined as the amount invested multiplied by the interest rate and the number of years that investment lasts.
I=PRT
I=interest
P=principal
R=rate of return
T=time
Let X be the amount invested at 6%
I at 6%=6%*X*1
I=0.06X
The amount invested at 10% is 20,000-X
total interest=0.06X+0.10*(20000-X)
total interest=1,480
1480=0.06X+0.10*(20000-X)
1480=0.06X+2000-0.10X
1480-2000=0.06X-0.10X
-520=-0.04X
X=-520/-0.04
X=13,000
13,000 was invested at 6%
amount invested at 10%=20,000-X
amount invested at 10%=20,000-13,000
amount invested at 10%=7,000
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The numbers 1 to 12 must be placed in the circles of the star shown on the right. The sums of the numbers in each row, and the sum of the numbers in the six outer circles of the star, must be equal to 26. Arrange the numbers accordingly.
Answer:
The numbers 1 to 12 must be placed in the circles of the star shown on the right. The sums of the numbers in each row, and the sum of the numbers in the six outer circles of the star, must be equal to 26. Arrange the numbers accordingly.