Expand each binomial. (3-x)⁵

Answers

Answer 1

  The expand each binomial. (3-x)⁵ is:

-x⁵ + 15x⁴ -90x³ + 270x² - 243x + 243

 We solve first by perfect square trinomial, then we apply the distributive property.

(3 - x)⁵ = (3 - x)²(3 - x)²(3 - x)

(3 - x)²= 9 -  6x + x²

(9 -  6x + x²)(9 -  6x + x²)

81 - 54x + 9x² - 54x + 36x² - 6x³ + 9x² - 6x³ + x⁴

x⁴ - 12x³+ 54x² - 108x + 81

(x⁴ - 12x³+ 54x² - 108x + 81)(3 - x)
3x⁴ - 36x³+ 162x² - 324x + 243 - x⁵ + 12x⁴ - 54x³ + 108x² - 81x

-x⁵ + 15x⁴ -90x³ + 270x² - 243x + 243

What is a polynomial?

   A polynomial is a set of numbers and letters that make up an expression that has a meaning, the letters are variables and the numbers are coefficients or independent terms.

 Depending on the number of terms it can be :

monomialbinomialtrinomial

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Related Questions


The table shows the number and type of books that Sarah owns. Find the probability.
A randomly chosen title is a print or audio book.

Answers

Answer:

hi

Step-by-step explanation:

Answer:

FITNESS Laura wants to go to a fitness class

tomorrow. She can choose a 5:00 or a 7:30 class and

spin or water aerobics. Represent the sample space

for the situation by making an organized list, a table,

and a tree diagram.

Step-by-step explanation:

Graph f(x) = 46(0.75). What is the constant percent rate of change of f(x) with respect to x? Does the graph represent growth or decay?
O 75% growth
O 75% decay
O25% growth
O 25% decay

Answers

The constant percent rate of change of f(x) with respect to x is (d) 25% decay

What is the constant percent rate of change of f(x) with respect to x?

The function is given as

f(x) = 46(0.75)^x

The above function is an exponential function

The growth/decay factor is

b = 0.75

The constant rate is then calculated as

Rate = 1 - b

This is because b is less than 1 (i.e. an exponential decay)

So, we have

Rate = 1 - 0.75

Evaluate

Rate = 25%

Hence, the constant percent rate of change of f(x) with respect to x is (d) 25% decay

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Answer: D

Hope this helps :)

What is the slope of a line perpendicular to the line whose equation is x+4y=16x+4y=16. Fully simplify your answer.

Answers

The slope of a line perpendicular to the line of x + 4y = 16 is 4.

What is the slope of a line perpendicular to the line of the given equation?

Given the equation of line;

x + 4y = 16

First, rearrange in slope intercept form ( y = mx + b ) by solving for y

x + 4y = 16

Subtract x from both sides

x - x + 4y = 16 - x

4y = -x + 16

Divide each term by 4 and simplify

4y/4 = -x/4 + 16/4

y = -(1/4)x + 4

Using the slope intercept form ( y = mx + b ) to compare.

y = -(1/4)x + 4

Slope m = -(1/4)

Now, the equation of a perpendicular line to y = -(1/4)x + 4 must have a slope that is the negative reciprocal of the original slope.

Hence, m_perpendicular will be;

m_perpendicular = -( 1 / original slope )

m_perpendicular = -( 1 / -(1/4) )

m_perpendicular = -( -4 )

m_perpendicular = 4

Therefore, the slope of a line perpendicular to the line of x + 4y = 16 is 4.

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#3 i
The endpoints of AB are A (-8, 5) and B (0,7). Find the coordinates of the midpoint M.
The coordinates of the midpoint M

Answers

The coordinates of the midpoint M of the segment AB is (-4,6).

What is the coordinates of the midpoint M of the segment AB?

The midpoint formula is expressed as;

M = ( (x₁+x₂)/2, (y₁+y₂)/2 )

Given the data in the question;

Point A (-8, 5)

x₁ = -8y₁ = 5

Point B (0,7)

x₂ = 0y₂ = 7

To determine the midpoint, plug the given points into the formula above and simplify.

M = ( (x₁+x₂)/2, (y₁+y₂)/2 )

M = ( ((-8)+0)/2, (5+7)/2 )

M = ( ( -8+0 )/2, (5+7)/2 )

M = ( ( -8 )/2, (12)/2 )

M = (-4,6)

Therefore, the coordinates of the midpoint M of the segment AB is (-4,6).

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Find the value of x if A C=4 x-3, D C=2 x+9, m∠ E C A=15 x+2, and EC is a median of ΔAED. Is EC also an altitude of Δ A E D ? Explain.

Answers

If AC = 4x - 3, DC = 2x + 9, m ∠ ECA = 15x + 2, and EC is a median of ΔAED then EC is not an altitude of ΔAED because of m ∠ ECA = 92.

What is meant by the altitude of a triangle?

In geometry, an altitude is a line that passes through two very specific points on a triangle: a triangle's vertex, or corner, and its opposite side at a right, or 90-degree, angle. The base is the opposite side. Triangles have three vertices and three opposite sides in common.

Given: AC = DC

4x - 3 = 2x + 9

4x - 2x - 3 = 2x - 2x + 9

simplifying the above equation, we get

2x - 3 = 9

2x - 3 + 3 = 9+3

2 x = 12

x = 6

Substitute the value of x in m ∠ ECA, then we get

m ∠ ECA = 15x + 2

= 15(6) + 2

m ∠ ECA = 92

EC is not an altitude of ΔAED because of m ∠ ECA = 92.

Therefore, EC is not an altitude of ΔAED.

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The temperature is 10 degrees below zero. The sun come out and the temperature went
up 15 degrees. What is the temperature now since the sun came out?

Answers

Answer:

5 degres

Step-by-step explanation:

0-10 is -10

-10+15 is 5

A b = 8x - 7 BC = 6X + 7 what is AC

Answers

Answer:

a

Step-by-step explanation: codigo binario

Two trains leave towns 978 miles apart at the same time and travel toward each other. one train travels 21 miles per hour faster than the other. if they meet in 6 hours what is the rate of each train?

Answers

If two trains leave towns 978 miles apart at the same time and travel toward each other and one train travels 21 miles per hour faster than the other and if they meet in 6 hours, then the rate of the faster and slower train will be 92mph and 71 mph respectively.

To determine the rate or speed of each train, an algebraic expression can be used.

As one train travels 21 miles per hour faster than the other, consider x to be the speed of the train that travels slower. In this case, an algebraic expression can be given as,

6x + 6(x + 21) = 978

Here, (x + 21) represents the speed of the faster train

6x + 6x + 126 = 978

12x = 978 - 126

12x = 852

x = 852 ÷ 12

x = 71

x + 21 = 71 + 21 = 92

Hence, the rate of the faster train is 92 miles per hour and the rate of the slower train is 71 miles per hour.

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Urijah is starting a food cart business. The cost to start the business is $20,000 and the monthly costs are $8,000. He has been earning $8,800 every month in revenue. In how many months will Urijah's business break-even and earn a profit?

Answers

He will break even on the 25th month.

How to find the number of month his business will break even?

The cost to start the business is $20,000 and the monthly costs are $8,000.

He has been earning $8,800 every month in revenue.

Profit = Selling Price - Cost Price

Therefore,

let

x = number of month

Hence,

selling price = 8800x

cost price = 20000 + 8000(x) = 20,000 + 8000x

Therefore,

profit =  8800x - (20,000 + 8000x)

profit = 8800x - 20000 - 8000x

profit = 8800x - 8000x - 20000

profit = 800x - 20000

Hence,

The month when they will break even is as follows:

8800x = 20,000 + 8000x

20000 = 8800x - 8000x

20000 = 800x

x = 20000 / 800

x = 25

Therefore, he will break even on the 25th month.

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Which graph represents exponential decay?

Answers

Answer:

The graph of g(x) shows exponential decay, while the graph of f(x) shows exponential growth. What you need in your answer: The graphs are reflections of each other over the y-axis. The g(x) function represents exponential decay.


Write the equation of each line in slope-intercept form and identify the slope.
4 x+6 y=12

Answers

The equation of the line 4x + 6y = 12 expressed in slope-intercept form is y = -2/3 x + 2 with a slope equal to -2/3.

The equation of a line can be expressed in three different forms: standard form, slope-intercept form, and point-slope form.

The slope-intercept form of the equation of a line is given by the formula:

y = mx + b

where m is the slope of the line

b is the y- intercept

Given the equation of the line 4x + 6y = 12, which is in standard form, transform it into slope-intercept form by isolating the variable y in one side.

4x + 6y = 12

6y = -4x + 12

Dividing both sides by 6,

y = -4/6 x + 2

y = -2/3 x + 2

Hence, the equation of the line in slope-intercept form is y = -2/3 x + 2 where the slope, m, is equal to -2/3.

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Find the values of x and y given that 182x + 247 y = gcd(182, 247)

Answers

Answer:

Hello,

x=-4, y=3

Step-by-step explanation:

14*x+19*y=1 since gcd(182,247)=13

Here is a automatic calculus (using Bezout 's method)

All you have to do is to put in B1 and B2 the right numbers

The values of x and y given that 182x + 247 y = gcd(182, 247) would be x=-4 and y=3.

What does it mean to solve an equation?

An equation represents equality of two or more mathematical expression.

To solve an equation, then the values of the unknowns for which that equation would be true (the equality between expressions should hold true for those values).

And Solutions to an equation are values of the variables involved in that equation for which the equation is true.

We have given the equation as;

182x + 247 y = gcd(182, 247)

Then we get

14*x+19*y=1

Thus, x=-4 and y=3.

since we have given gcd(182,247)

=13

Hence, The values of x and y given that 182x + 247 y = gcd(182, 247) would be x=-4 and y=3.

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Point A is chosen at random on BE- . Find the probability of the following event.

P(A is on CE-)

Answers

The probability of the event P(A is on [tex]\bar{CE}[/tex]) is 21/26.

Probability:

Probability defines the possibility of the event across the total event.

Given,

Point A is chosen at random on [tex]\bar{BE}[/tex].

Here we need to find the the probability of the following event.

P(A is on [tex]\bar{CE}[/tex]).

Let us consider the following image, in order to solve this.

Based on the image we have identified that the probability of the event  P(A is on [tex]\bar{CE}[/tex]) is calculated by dividing the length of CE by the length of BE.

So, the probability of the event P(A is on [tex]\bar{CE}[/tex]) is,

P(A is on [tex]\bar{CE}[/tex]) =  (length of CE) / (length of BE)

Then, length of CE is calculated by adding the distance,

=> CD + DE

=> 12 + 9

=> 21

Now,

Apply the values then we get,

P(A is on [tex]\bar{CE}[/tex]) = 21 / ( 5 + 12 + 9)

P(A is on [tex]\bar{CE}[/tex]) = 21 / 26

Therefore, the probability of the event P(A is on [tex]\bar{CE}[/tex]) is 21/26.

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234.8−38.94 helppppp

Answers

Answer:

195.86

Step-by-step explanation:

Answer: 195.86. Yw.

Step-by-step explanation: Pls add me Brainliest >3

Arianna takes $40 spending money out of her checking account every week. What is the change this causes in the number of dollars in her account after 5 weeks
.
.
A) $405
B) -$45
C) -$200

Answers

Answer:

C.)-200

Step-by-step explanation:

Each week if you take away $40 for 5 weeks, you would take away $220. -40*5=200.

C because you can divide and multiply by the amount that is in your head and you can’t see it

ASAP NEED>...............

Answers

Is it 5
7/x + 3/7 = 2
7+3=10 we’ll call this c
7+x=c/2
10/2= 5

HELP ME WITH MY HOMEWORK!!!

The sum of -21.8 and a number is positive. Identify a possible value for that number. Explain your reasoning.

Answers

Answer:

21.9 is a possible value

Step-by-step explanation:

I just wrote the equation below have a very small but positive value on the right side and solved for x

x - 21.8 = 0.1

x = 21.9

pls helppppppppppppp

Answers

Answer:

Option 2

Step-by-step explanation:

2.2 x 1.25 = 2.7510-2.75=7.25

HELP WITH INEQUALITY PROBLEM PLEASE!!!

Answers

Answer:

A. s+7726>=12,600

Step-by-step explanation:

s is the number of steps left to reach her goal of at least 12,600 steps.

7726 is the number of steps already taken.

12,600 is her goal.

s+7726>=12,600

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Anna is watching a space shuttle launch 6 miles from Cape Canaveral in Florida. When the angle of elevation from her viewing point to the shuttle is 80°C , how high is the shuttle, if it is going straight up?

Answers

The shuttle is 34.03 miles high.

In this question,

Anna is watching a space shuttle launch 6 miles from Cape Canaveral in Florida.

The angle of elevation from her viewing point to the shuttle is 80°

If the space shuttle is going straight up, we need to how high the shuttle is.

Let x be the unknown value.

Consider tangent of angle 80°

So, tan(80°) = x/6

⇒ x = 6 × tan(80°)

⇒ x = 6 × 5.6713

⇒ x = 34.03 miles

Therefore, the shuttle is 34.03 miles high.

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If p(a|b) =0.40, p(b) = 0.74, and p(a) = 0.42, are the events a and b independent?

Answers

The set of items that exist as part of both sets A and B exists at the intersection of the two sets.

If p(a|b) =0.40, p(b) = 0.74, and p(a) = 0.42, then P(A∩B) is 0.46.

What is Probability?

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true.

It exists given that the Probability of two independent event A and B exists given by P(A)  and P(B).

The intersection of event A and B is given by P( A∩B).

The group of items that are part of both sets A and B is the intersection of the two sets. A ∩ B represent the intersection. The symbol "" can be used to represent the intersection of sets.

The collection of all outcomes that are components of both sets A and B is known as the intersection of events A and B (abbreviated AB).

Given: P(a|b) = 0.40

P(A) = 1 - 0.40 = 0.6

P(B) = 1 - 0.74 = 0.26

P(A∪B) = P(A) + P(B) − P(A∩B)

substitute the values in the above equation, we get

0.40 = 0.6 + 0.26 - P(A∩B)

- P(A∩B) = 0.40 -  0.6 - 0.26

P(A∩B) = 0.46

Therefore, the independent events of A and B exists 0.46.

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Give an example of a 2x2 matrix whose
determinant is 13.

Answers

Answer:

The method for appearing with numbers for the 2x2 matrix whose determinant is 13 is clarified.

Step-by-step explanation:

Determinant of 2×2 matrix

If we have a 2×2 matrix A of the form;

A =

\binom{a \: \: \: b}{c \: \: \: d}(

cd

ab

)

The determinant of the matrix is;

|A| = (a.d) - (b.c)

Therefore, to appear with numbers for a, b, c, and d, we must ensure; (a.d) - (b.cdeterminantse, if a = 3, d = 15, b = 2, and v = 1.

Ultimately, |A| = (3×5) - (2×1) = 13

After robbing a bank in Dodge City, a robber gallops off at 14 mi/h. 30 minutes later, the marshall leaves to pursue the robber at 16 mi/h. How long (in minutes) after the marshall takes off does it take the marshall to catch up to the robber?

Answers

The number of minutes it will take the marshal to catch up to the robber in discuss is; 210.

How long will it take to catch up with the robber?

Let 30minutes = 0.5 hours.

Let x represent the time for which the marshal has ran.

On this note, the robber must have galloped at; (x +0.5) hours.

Hence, it follows from the task content that if they are at the same distance from the bank; we have;

14(x+0.5) = 16(x)

14x + 7 = 16x

7 = 2x

x = 7/2 = 3.5 hours.

= 3.5 × 60minutes = 210minutes.

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On Monday, 222 students went on a trip to then zoo. All 4 buses were filled and 6 students had to travel in cars. Write an equation where x is the number of students on each bus. How many students were on the bus

Answers

Step-by-step explanation:

222-6=216

216÷4=54

so 54 students per bus

Answer:

54 students

Step-by-step explanation:

222 - 6 (students that had to travel in cars) = 216

216 / 4 (4 buses) = x

x = number of students on each bus

216 / 4 = 54

x = 54

54 students on each bus

216 students rode the bus, 6 students rode in cars


Find the 32 nd term of each sequence. -9,-8.7,-8.4, ...........

Answers

The 32th term of the arithmetic sequence AP is estimated to be 0.3.

What is meant by arithmetic sequence AP?

In math, an arithmetic progression (AP) is a list or sequence of numbers in which each term is obtained by adding a finite number to the term before it.

The fixed number is known as the arithmetic progression's common difference written by 'd'The common difference of AP is 'd': d = a2 - a1 = a3 - a2 = a4 - a3 =...... = a - an-1.nth term of an AP: an = a + (n - 1) dThe sum of n terms of an AP's is Sn = n/2(2a+(n-1)d) = n/2(a + l), where l is the final term of the AP.

Now for the answer to the question;

The numbers in the given sequence are-

-9,-8.7,-8.4, ...........

There are 32 terms with in series for that we need to find the 32nd number.

Let's say the first term is 'a₁' = -9.

Let 'a₂' = -8.7 be the second term.

Let 'a₃' = -8.4 be the third term.

The common difference between two consecutive terms that are equal of an AP is 'd.'

d = a₂ - a₁  

Substitute the values in the preceding equation; the 32nd term is

d = -8.7 - (-9)

d = -8.7 + 9

d = 0.3

Now calculated using the nth term formula.

nth term of an AP: an = a + (n - 1) dTotal number of terms is; n = 32First term is a = -9common difference  d = 0.3

Substitute all of the values in the formula now.

a₃₂ = a + (n - 1) d

a₃₂ = -9 + (32 - 1)(0.3)

a₃₂ = -9 + 9.6 - 0.3

a₃₂ = 0.3

As a result, the arithmetic sequence's 32nd term is estimated to be 0.3.

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A major fishing company does its fishing in a local lake. The first year of the company's operations it managed to catch 175,000 fish. Due to population decreases, the number of fish the company was able to catch decreased by 8% each year. How many total fish did the company catch over the first 10 years, to the nearest whole number?

Answers

The company catches 1,237,275.5 fishes over 10 years.

Given that, a company catches 175000 fishes in a year, the population decreases, the number of fish the company was able to catch decreased by 8% each year.

So, the population in 10 year =

The second year = 175000 × 0.92 = 161000

The third year = 161000 × 0.92 = 148120

The fourth year = 148120 × 0.92 = 136,270.4

The fifth year = 136270.4 × 0.92 = 125368.8

The sixth year = 125268.8 × 0.92 = 115339.3

The seventh year = 115339.3 × 0.92 = 106112.2

The eighth year = 106112.2 × 0.92 = 97623.2

The ninth year = 97623.2 × 0.92 = 89813.3

The tenth year = 89813.3 × 0.92 = 82628.3

The total = 175,000+161000+148120+136,270.4+125368.8+115339.3+106112.2+97623.2+89813.3+82628.3 = 1,237,275.5

Hence, the company catches 1,237,275.5 fishes over 10 years.

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PLEASE HELP Word problem involving average rate of change

Answers

Answer:

(a): 26.1

(b): 27.9

Please see below for the steps.

Step-by-step explanation:

(a):

Use points (0,0) and (3, 78.3)

Use slope formula. The slope formula is also used to find average rate of change (just so you know).

y2-y1/x2-x1

78.3-0/3-0=78.3/3=26.1

Answer for (a) is 26.1

(b):

Use points (4, 147.6) and (9, 287.1)

Use slope formula.

y2-y1/x2-x1

287.1-147.6/9-4=139.5/5=27.9

The answer for (b) is 27.9

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if CD is the bisector of AB and AD=13 units,what is DB?how many units does DB have

Answers

Answer: DB=6.5 units

Step-by-step explanation:

DB=BD

AB+BD=AD

AB=BD ==> Bisectors divide a segment into two equal parts

BD+BD=13

2*BD=13

BD=13/2

BD=

DB=6.5 units

Bag with 4 marbles. Two red and two blue. Draw the balls one at a time, but before it comes out, try to predict the color. If correct, you get a dollar. If you play optimally, what is the expected value of the game?

Answers

The situation can be solved by determining the probability of the selecting a certain color marble.

Probability is the ratio of a favorable outcome x to the total number of outcomes n of an event. In the give case, if the prediction is correct, you get a dollar.

Probability=x/n

On the first draw, the chance that predicted color is drawn is:

Probability=2/4=1/2

Amount you may get is ½*1=1/2

On the second draw, the chance the color with two left balls is predicted and come out:

Probability=2/3

Amount you may get is 2/3*1=2/3

On the third draw, you predicted a color with no same color balls left:

Probability=1/3

Amount you may get is 1/3*1=1/3

Or you predicted a color with two different color balls left

Probability=2/3*1/2=2/6=1/3

Amount you may get is 1/3*1=1/3

On the fourth draw, the probability of correct predicted ball is 1

Amount you may get is 1=1

If you played the game optimally, summing up the amount=1/2+2/3+1/3+1/3+1=17/6≈2.88

Hence, by playing the game optimally, the expected value of the game is $2.88.

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there are 5 more of this same question get free pounts! Rex and Samir participated in a walkathon. Rex walked for 1 2/3 hours, and Samir walked for 3 1/3 hours. complete the comparison. Samir walked _____ times ad many hours as Rex walked.​

Answers

Answer:

2 times as much

Step-by-step explanation:

1 hour 2/3 = 60 + (2/3) 40 mins = 100 minutes

3 hours 1/3 = (60 ×3 ) + 20 mins = 200 mins

200 is twice as much as 100

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A decrease in the price of ice cream is likely to cause a(n) _____ in the demand for ice cream cones, due to a change in _____. All people in tribes of the northcoast region were treated as equals. question 6 options: true false How to write four hundred seven million six thousand nine hundred and sixty two? What is the labeling theory? The measure of one angle is 3 degrees more than 1/2 the measure of its supplement. Identify and solve an algebraic equation. Consider the sequence of real numbers[tex] \rm a_1 = \frac{ log_{2}( {3}^{2} ) }{ log_{3}(2) } ,a_2 = \frac{ log_{ {3}^{3} }( {4}^{4} ) }{ log_{ {4}^3}( {3}^{4} ) } ,a_3 = \frac{ log_{ {4}^5 }( {5}^{6} ) }{ log_{ {5}^{5} }( {4}^{9} ) }, \dots[/tex]In general, [tex] \rm a_k = \frac{ log_{(k + 1) ^{(2k - 1)} } ((k + 2 {)}^{2k}) }{log_{(k + 2) ^{(2k - 1)} } ((k + 1 {)}^{ {k}^{2} })} [/tex] Let [tex] \rm P_n = \frac{ log_{ {(n + 1)}^{(2n - 1)} }( {2}^{2n} ) }{ log_{ {2}^{(2n - 1)} }((n + 1) {}^{ {n}^{2} } )} \cdot \prod \limits_{k = 1}^{n - 1} a_k[/tex] for integer n [tex]\geq [/tex] 2.[tex] \rm Find \sum \limits_{n = 2}^{ \infty } P_n[/tex] In KLM, k = 56 inches, m = 51 inches and M=28. Find all possible values of K, to the nearest degree. The windows 10 start menu contains ________, which provide access to applications A new government based on the principle of popular sovereignty must question 17 options: ensure freedom of speech for all citizens. have a directly elected president or prime minister. affirm the idea that its power comes from the people. divide government roles. Can someone pls explain this to me more detailed and the best way possible because I dont get it at all and yes both of the text. Describe the disagreement between alexander hamilton and thomas jefferson in relation to the idea of a strong central government. An ___ is a vessel that travels underwater, and a subway train travles ____ the ground What is the index when x23x23 is rewritten as a radical expression? What is a glacier? How could a massive chunk of ice carve out valleys and create lakes? Explain what glaciation means and identify an example of a lake that was formed by glacial processes What term refers to a laptop that features a massive screen, a full size keyboard, an optical drive (or maybe two), and plenty of hard drive space? La biblioteca tiene ciento cincuenta sillas. El laboratorio de lenguas tiene treinta sillas. 1 of 1. Why does Walt Whitman use the word singing in the title I hear America singing How does a confederation differ from a federation?A confederation has a strong balance of power, while a federation gives all power to the central government.A confederation gives all power to the central government, while a federation has no balance of power. A confederation is a strong union between states, while a federation has no balance of power. A confederation is a weak union between states, while a federation has a strong balance of power? You are saving for a skateboard. Your aunt gives you $45 to start, and you save $3 each week. The expression 45 + 3w gives the amount of money you save after w weeks. How much will you have after six weeks? Find the sum of each infinite geometric series. 1- 1/2 + 1/4- . . . .