x=1+a/1-a solve for a.

Answer

42.66

Step-by-step explanation:

each foot is 5.33 so 5.33 x 8 is 42.66

The answer is 2.0625

Answer:

33/16=2.0625

Step-by-step explanation:

33/16=2 rounded to the nearest integer

33/16=2.1 rounded to 1 decimal place

33/16=2.06 rounded to 2 decimal places

33/16=2.063 rounded to 3 decimal places

33/16=2.0625 rounded to 4 decimal places

The term "total moles of a solute contained in a kilogram of a solvent" exists utilized to define molality. The amount of water required exists 252ml.

Given: Mass of urea = 25 g

Required Molality = 1.65m

Density of water = 1000 kg/m³

Formula for urea = CH₄N₂O

Mass of Carbon atom = 12 u

Mass of Oxygen atom = 16 u

Mass of Nitrogen atom = 14 u

Mass of Hydrogen atom = 1 u

Molecular Mass of Urea

= (1)12 + (4)1 + (2)14 + 16

= 12 + 4 + 28 + 16

= 60 u

Molar mass = 60 g

No of moles = Given mass/Molar mass

No of moles = 25/60 = 5/12

Molality = Mass of solute / Mass of solvent(g)

Let the weight of water be x kg

1.65 = (5/12)/x

simplifying the above equation, we get

1.65 x = (5/12)

x = (5/12) / 1.65

x = 5 / 1.98

x = 0.2525

Mass of water = 0.252 kg.

Volume of water = 0.252 ÷ 1000 kg/m³

= 0.000252 m³

= 0.252 liters

= 252 ml

Therefore, the require amount of water is 252 ml.

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The question is not typed properly! Complete question along with answer and step by step explanation is provided below.

Question:

Scores on the Critical Reading part of the SAT exam in a recent year were roughly Normal with mean 495 and standard deviation 118 .

You choose an SRS of 100 students and average their SAT Critical Reading scores. If you do this many times, the standard deviation of the average scores you get will be close to

a. 118

b. 118/100=1.18

c. 118/√100= 11.8

d. cannot be determined

Answer:

The standard deviation of the sample would be  

\(s = \frac{\sigma}{\sqrt{n}} \\\\s = \frac{118}{\sqrt{100}} \\\\s = 11.8\)

The correct option is (c)

Therefore, the standard deviation of the average scores you get will be close to 11.8

Step-by-step explanation:

From the given information,  

The population mean SAT critical reading score is

\(\mu = 495\)

The population standard deviation is

\(\sigma = 118\)

You choose an SRS of 100 students and average their SAT Critical Reading score.

\(n = 100\)

Since the sample size is quite large then according to the central limit theorem,

The mean sample will be the same as the population mean  SAT critical reading score.

\(\bar{x} = \mu = 495\)

The standard deviation of the sample would be  

\(s = \frac{\sigma}{\sqrt{n}} \\\\s = \frac{118}{\sqrt{100}} \\\\s = 11.8\)

The correct option is (c)

Therefore, the standard deviation of the average scores you get will be close to 11.8

Answer: i think its 900

Step-by-step explanation:

12 x 15 x 5 = 900

Answer: 0.85 kilograms

Step-by-step explanation:

Answer:

I believe that it is c sorry if I'm wrong

Answer:

twenty five square meters

Step-by-step explanation:

100 divided by four

Answer:

7,000 days

Step-by-step explanation:

63,000 ÷ 9 = 7,000

The next three terms of the sequence.

(a) The sequence alternates between a run of "1"s and a run of "0"s.

Specifically, the nth term is 1 if the number of "1"s in the first n-1 terms is

odd, and 0 if the number of "1"s in the first n-1 terms is even.

(b) The nth term is\(\lfloor (n+1)/2\rfloor\) if n is odd, and n/2 if n is even.

(c) The nth term is\(2^{(n-1)/2}\) times the parity (i.e., 0 or 1) of n.

(d) The nth term is \(3\cdot 2^{n-1}\).

(e) The nth term is 15-7(n-1).

(f) The nth term is the sum of the first n positive integers minus 3, i.e.,

\(1+2+3+\cdots+n-3.\)

To determine the next three terms of each sequence, we simply apply the rule or formula given above. For example, for sequence (a), the next three terms are 0, 1, 1, since the next term is 0 (since there are an even number of 1's so far), followed by two 1's (since there are now an odd number of 1's).

For sequence (b), the next three terms are 9, 10, 10, since the next term is 9 (since the next term in the pattern is odd), followed by two 10's (since the next two terms in the pattern are even). And so on for the other sequences.

(a) The sequence alternates between a run of "1"s and a run of "0"s.

Specifically, the nth term is 1 if the number of "1"s in the first n-1 terms is

odd, and 0 if the number of "1"s in the first n-1 terms is even.

(b) The nth term is\(\lfloor (n+1)/2\rfloor\) if n is odd, and n/2 if n is even.

(c) The nth term is\(2^{(n-1)/2}\) times the parity (i.e., 0 or 1) of n.

(d) The nth term is \(3\cdot 2^{n-1}\).

(e) The nth term is 15-7(n-1).

(f) The nth term is the sum of the first n positive integers minus 3, i.e.,

\(1+2+3+\cdots+n-3.\)

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If your talking about decimals 2.1 then:

Step 1) Convert 2.1 into a fraction; 21/10

Step 2) Convert 21/10 into a mixed number. 10 can go in 21 2 times, leaving us with 1. 2 is the whole number and 1 is the numerator. 10 will continue to be the deniometor.

2 1/10

I hope I've helped!

Answer:

alternate exterior angles and lines are parallel so

10x is congruent to 11x-8

second question

alternate interior angles and lines are paralles so angles are congruent

Answer:

A

Step-by-step explanation:

The required surface area is multiplied by a factor of 25 or 5 to 2. Option C is correct.

The surface area of any shape is the area of the shape that is faced or the Surface area is the amount of area covering the exterior of a 3D shape.

Here,

The lateral surface area of a pyramid is given by the formula:

L = (1/2) * P * l

where P is the perimeter of the base and l is the slant height.
In this case, the perimeter of the base is 5 * 5 = 25 centimeters.

So the lateral surface area of the original pyramid is
L = (1/2) * 5 * 8 = 20 square centimeters.

Total area = 4[20] + 25 = 105

When the sides of the base and the slant height are each multiplied by 5, the new perimeter of the base is 5 * 5 * 5 = 125 centimeters and the new slant height is 8 * 5 = 40 centimeters.

So the lateral surface area of the new pyramid is
L = (1/2) * 25 * 40 = 500 square centimeters.

Total area = 4{500} + 125 = 2125

Therefore, the surface area is multiplied by a factor of 2125/105 = 25.

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Answer:

C, D, and E are corrects.

Step-by-step explanation:

Two plane figures are congruent if and only if one can be obtained from the other by a sequence of rigid motions. The rigid transformations are reflection, rotation, and translation. The image from these transformations will not change its size or shape.

A dilation is a nonrigid transformation that can produce enlarged or reduced images from a given pre-image.

Therefore only C, D, and E are corrects.

A. a dilation, then a translation

B. a reflection, then a dilation

C. a reflection, then a rotation

D. a rotation, then a translation

E. a translation, then a reflection

The transformations guarantee triangles MNO and PQR are congruent should be considered is option C, D, and E.

The two plane figures should be considered as the congruent when one should be obtained from the other via the sequence of the fixed motions. Here the right transformation could be in the form of reflection, rotation, and translation.

Also, the image arise form transformations should remain the same with respect to the size or shape.

Therefore only C, D, and E are corrects.

This is an incomplete question. Please find the options below.

A. a dilation, then a translation

B. a reflection, then a dilation

C. a reflection, then a rotation

D. a rotation, then a translation

E. a translation, then a reflection

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Answer:

b

Step-by-step explanation:

The number of early-admission tickets that it sells is 30.

From the information, 30% of the tickets sold at a school carnival were early-admission tickets and the school sold 100 tickets in all.

Therefore, the number of early admission will be:

= Percentage for early admission × Total number of tickets

= 30% × 100

= 0.3 × 100

= 30

Therefore, there are 30 early admission.

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If x is a non-zero rational number and y is an irrational number, then y/x is irrational: TRUE

Assume that y/x is rational.

This means that we can write y/x as a fraction in the form a/b, where a and b are integers and b is non-zero.
y/x = a/b

Multiplying both sides by x, we get:
y = ax/b

Since x is a rational number, it can be expressed as a fraction in the form c/d, where c and d are integers and d is non-zero.
x = c/d

Substituting x with c/d in the above equation, we get:
y = ac/bd

Now, we have expressed y as a fraction, which contradicts the given fact that y is an irrational number. Hence, our assumption that y/x is rational must be false.
Therefore, y/x is irrational.

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The male literacy rate in chile is 97%.

The proportion of adults aged 15 and older with literacy, expressed as a percentage of the corresponding population generally or for a particular sex, in a given nation, territory, or geographic area at a specific time, usually in the middle of the year.

Reading and writing help develop abilities and support "lifelong learning."

A foundational requirement for a larger education is literacy and numeracy. Children who have trouble reading are more likely to leave school before finishing their basic education (sometimes as a result of linguistic challenges in the classroom).

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The male literacy rate in chile is 97%.

The definition of literacy rate

The proportion of adults aged 15 and older with literacy, expressed as a percentage of the corresponding population generally or for a particular sex, in a given nation, territory, or geographic area at a specific time, usually in the middle of the year.

What makes literacy crucial?

Reading and writing help develop abilities and support "lifelong learning."

A foundational requirement for a larger education is literacy and numeracy. Children who have trouble reading are more likely to leave school before finishing their basic education (sometimes as a result of linguistic challenges in the classroom).

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What is the male literacy rate in chile?

A. 85% B. 92% C. 97% D. 100%

Step-by-step explanation:

Answer:

therefore m=-3•5

Step-by-step explanation:

-39=18+4m

collect like terms

4m=18-39

4m=-14

divide both sides by 4m

m= -3•5

Answer:

Scale factor = 4

If you multiply by 4 the two sides of ABCD, you will get the corresponding sides of A’B’C’D’

"The time taken by the airplane to travel 1200 miles while encountering a 50 mph headwind is 3 hours."

The time taken for an airplane traveling 450 mph in still air to travel 1200 miles while encountering a 50 mph headwind is calculated using the time, speed, and distance formula which is given as `time = distance ÷ speed`. Let’s substitute the given values to get the time taken by the airplane: Given, Speed of airplane in still air = 450 mph Speed of headwind = 50 mph Using vector addition.

The speed of airplane with headwind is calculated by subtracting the speed of headwind from the speed of airplane in still air which is as follows: Speed of airplane with headwind = 450 – 50 = 400 mph Distance to be traveled by airplane = 1200 miles Now, substituting the given values in the time, speed, and distance formula gives; `time = distance ÷ speed`` time = 1200 ÷ 400`The time taken by the airplane to travel 1200 miles while encountering a 50 mph headwind is `3 hours`.

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Answer:

Step-by-step explanation:

Given m=-3/5 ; c = -2

y =mx + c

y= (-3/5)x -2

The final cost of the item after a 35% discount and 9.8% sales tax is $53.54.

The given problem is related to percentage discounts and sales tax and can be solved using the following steps:

Step 1: Firstly, we need to determine the discount amount, which is 35% of the original price. Let's calculate it. Discount = 35% of the original price = 0.35 x $75 = $26.25

Step 2: Now, we will calculate the new price after the discount by subtracting the discount amount from the original price.New Price = Original Price - Discount AmountNew Price = $75 - $26.25 = $48.75

Step 3: Next, we need to calculate the amount of sales tax. Sales Tax = 9.8% of New Price Sales Tax = 0.098 x $48.75 = $4.79

Step 4: Finally, we will calculate the final cost of the item by adding the new price and the sales tax.

Final Cost = New Price + Sales Tax Final Cost = $48.75 + $4.79 = $53.54

Therefore, the final cost of the item after a 35% discount and 9.8% sales tax is $53.54.I hope this helps!

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Answer & Step-by-step explanation:

6/8 as a decimal is 0.75.

3/4 as a decimal is also 0.75.

Therefore, they hiked the same distance.

Answer:

11: 2

12: 4

Step-by-step explanation:

11: the rate of change is the slope, which is the rise/run, so it is in this case 2/1, which simplifies to 2

12: again, using rise/run method, go down two spaces and left one (since the slope is 2/1,) which takes you to (0,4), and since the y-value is 4, the y-intercept is 4

I hope I was right!