Determine whether 6 is a solution of the equation 2x - 5 = 1.
Choose the correct answer below.
ips
O A. Yes, 6 is a solution to the equation because a true statement results after replacing x with 6.
O B. No. 6 is not a solution to the equation because a false statement results after replacing x with 6.
O C. Yes, 6 is a solution to the equation because a false statement results after replacing x with 6.
Q D. No. 6 is not a solution to the equation because a true statement results after replacing x with 6.
2
ary
15

Part A.

Let x be the number of months. Since the rate is $44 per month and the initial fee is $48, the linear model is:

where C(x) denotes the total cost.

Part B.

In this case, we must substitute x=6 into our linear model. It yields,

which gives

Therefore, after 6 months, the total cost will be $312.

Part C.

In this case, the second company has a rate of $62 per month with no initial fee. Then, the linear model for the second company is

where now B(x) denotes the total cost for the second company.

Then, since you have $620, we can compare both companies by substituting the total cost of $620 into the two linear models, that is,

and finc x for each model.

Then, the first model yields,

and the second equation gives

By comparing both result, we can see that the best choice in the first company with 13 months

Answer:

Step-by-step explanation: Let the unknown no be x

1.

\(\frac{1}{3}\times x +27\\\\\frac{1}{3} x +27\)

2.

\(x^2 \times 4\\\\= 4x^2\)

3. The sum of the product and of 5 and a cubed number and 9

Answer:

Step-by-step explanation:

trapezoid is a 4-sided figure with one pair of parallel sides. For example, in the diagram to the right, the bases are parallel. To find the area of a trapezoid, take the sum of its bases, multiply the sum by the height of the trapezoid, and then divide the result by 2, The formula looks like this:

area_trapezoid1.gif or area_trapezoid2.gif

Where b1.gif is base1.gif, b2.gif is base2.gif, h.gif is height and · means multiply.

Each base of a trapezoid must be perpendicular to the height. In the diagram above, both bases are sides of the trapezoid. However, since the lateral sides are not perpendicular to either of the bases, a dotted line is drawn to represent the height.

Answer:

Step-by-step explanation:

1. x is inversely proportional to y

x=k/y

k is the constant of proportionality

x =60/y

2. x=60/y

x=60/12

x=5

Answer: Answer is 15 hours

Step-by-step explanation:Given 6 men dig 5 holes in 25 hours

Therefore 10 men will take to dig 5 holes is

workers(1) × time(1) = workers(2)×time(2)

(This formula is used when Total work is same)

where workers(1)= 6 men

Time (1) = 25 hours

workers (2) = 10 men

We have find out Time(2)=T(2)

by applying above formula

6×25=10×T2

after simplify

T2= 15 hours

Answer:

1

Step-by-step explanation:

The y intercept is when x =0

We need to use the second equation

-x+1  since -2 < 0 <3

0+1

The y intercept is 1

Answer:

absolute error: 7 pounds

percent error:4.9%

Step-by-step explanation:

Absolute error:

150-143=7 pounds

Percent error:

=l\(\frac{150-143}{143}\) l x 100

=l\(\frac{7}{143}\)l x 100

=0.04895x100

=4.895...

=4.9%

The probability of getting a household income of $75,000 in Maryland is 0.3989.

The normal distribution formula is given by:

P(x) = 1/√(2πσ^2) * e^[-(x-μ)^2 / (2σ^2)]

Where,

P(x) - Probability of getting a household income of x

μ - Mean annual household income in Maryland

σ - Standard deviation of annual household income in Maryland

Assuming that the mean annual household income in Maryland is $75,000 and the standard deviation is $10,000, the probability of getting a household income of $75,000 can be calculated using the formula given above.

P(75000) = 1/√(2π10000^2) * e^[-(75000-75000)^2 / (2*10000^2)]

= 0.3989 * e^(0)

= 0.3989

Therefore, the probability of getting a household income of $75,000 in Maryland is 0.3989.

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Answer:

Mauna Kea has from the base that is to say the deepest 10 km of height that is to say 10,000 m which is equivalent to being higher than Mount Everest.jj

Step-by-step explanation:

 The main reason why we could say that Mauna Kea is the highest mountain, even surpassing Mount Everest, is because of its altitude if we compare them we see the difference; for example Mauna Kea from its base that is to say from the deepest the ocean measures 10,000 m of altitude, on the other hand the Mount Everest has an altitude of 8848 meters (29,029 ft) above sea level, that is to say from its base it measures 8848 m altitude.

The shaded region of the rectangle is 242.9 cm² and the shaded region of the sector is 7.1 square units.

Question 17) is a figure of a rectangle and two inscribed circles.

The area of a rectangle is expressed as: A = length × width

The area of a circle is expressed as: A = πr²

Where r is the radius.

To determine the area of the shaded region, we simply subtract the areas of the two circles from the area of the rectangle.

Area = ( Length × width ) - 2( πr² )

Area = ( 40 × 10 ) - 2( π × 5² )

Area = ( 400 ) - 2( 25π )

Area = 400- 50π

Area = 242.9 cm²

Area of the shaded region is 242.9 squared centimeters.

Question 18) is the a figure a sector of a circle and a right triangle.

The area of a sector is expressed as: A = (θ/360º) × πr²

The area of a triangle  is expressed as: A = 1/2 × base × height

To determine the area of the shaded region, we simply subtract the areas of the triangle from the area of the sector.

Hence:

Area = ( (θ/360º) × πr² ) - ( 1/2 × base × height )

Plug in the values:

Area = ( (90/360º) × π × 5² ) - ( 1/2 × 5 × 5 )

Area = 25π/4 - 12.5

Area = 7.1

Therefore, the area of the shaded region is 7.1 square units.

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Answer:

the second one

Step-by-step explanation:

can you make me brainliest

Answer:

I think its 400

Step-by-step explanation:

8 seats per table, if there are 10 tables, means 80 seats in total. 80 times 5 gives you the amount of silverware: 400

If there are 10 tables (t) with 8 seats (s), there will be a total of 80 people needing silverware. So the equation is 5·10·8=400

There will be 400 pieces of silverware.

Answer:

The standard deviation for the number of defects per batch is 0.87.

Step-by-step explanation:

Let X denote the number of defective batteries per batch.

A company manufactures batteries in batches of n = 26.

It is provided that the rate of defects is, p = 0.03.

Each battery is defective independently of the others.

The random variable X follows a binomial distribution.

The standard deviation of a binomial distribution is:

\(\sigma=\sqrt{np(1-p)}\)

Compute the standard deviation for the number of defects per batch as follows:

\(\sigma=\sqrt{np(1-p)}\)

  \(=\sqrt{26\times 0.03\times (1-0.03)}\\\\=0.86982757\\\\\approx 0.87\)

Thus, the standard deviation for the number of defects per batch is 0.87.

The additional information would allow you to prove the quadrilateral is a parallelogram according to the minimum criteria is

EJ ≅ GJ. Option A

We need to know the properties of a parallelogram, we have;

We know that FJ  ≅ JH, it's given by the marks, now if it were to happen that EJ ≅ GJ, that would mean that the diagonals on that quadrilateral are bisecting each other, and if that's so, then the quadrilateral it's indeed a parallelogram.

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The complete question:

What additional information would allow you to prove the quadrilateral is a parallelogram according to the minimum criteria?

A)

ej ≅ gj

B)

ej || gj

C)

fg || eh

D)

ef ≅ hg

We want to simplify the expression:

First of all, we need to write the expression as a single fraction, this is achievable by taking the common denominator. Doing this, we have:

Next, we open and simplify the brackets in the numerator.

What is 7 1/5 written as a percent?

720%

We know that 1/5 is the same as dividing 1 by 5.

or 1÷5.

Therefore, \(7\frac{1}{5}\) \(= 7+ (1/5)\)

Then using  Long Division for 1 divided by 5  we have

7 + 0.2 = 7.2

Converting our number to a percentage:

7.2(100)

= 720%

Therefore, 7 1/5 as a percent is 720%

If you need more help, don't fret to message me!

I'll be glad to assist.

Subject: Mathematics

Concept: Conversions

Grade: Middle/High

The 500 sample size and 95% confidence level will both tend to increase the width of the confidence interval.

In this question, we have been given  the combinations of sample size and confidence level.

We need to select a combinations of sample size and confidence level that will give the widest interval.

We know that the confidence level is typically set in the range of 99% to 80%. The 95% confidence interval will be wider than the 90% interval and which will be wider than the 80% interval.

As we know increasing the confidence will increase the margin of error which results in a wider interval.

But increasing the sample size decreases the width of confidence intervals, as it decreases the standard error.

This means, for the widest interval we need to select a high confidence interval and small sample size.

Therefore, the sample size = 500 and the confidence interval = 95% will give the widest interval.

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a) The initial deposit in the account is given as follows: 1,287.39 euros.

b) The interest rate of the account is given as follows: 3%.

The equation that gives the balance of an account after t years, considering simple interest, is modeled as follows:

A(t) = P(1 + rt).

In which the parameters of the equation are listed and explained as follows:

Considering the balances after 5 and 6 years, the interest rate is obtained as follows:

r = 1524.60/1480.50 - 1

r = 0.03.

Considering the balance after 5 years, the initial deposit is obtained as follows:

P(1 + 0.03 x 5) = 1480.5

P = 1480.5/1.15

P = 1,287.39 euros.

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Answer:

The equation for those inputs and outputs is:
0.25 *input - 151.75 = Output  

Step-by-step explanation:

For this, first search for the Slope of the funtion
THe slope can be found by calculating this :
(y2-y1)/(x2-x1)  or in this case (output2 - output1)/ (input2 - input1)

IT continues as follows:
( -48.5 - 24)  / (-413 - (-703) ) =
= (-72.5) / (290)
= -0.25

The slope is -0.25. If the function is a line then the equation is

-0.25*input + B = output

with any of the choices we can determine B.
  -0.25 * (-703) + B    = 24

   175.75 + B              = 24
175.75 +B - 175.75    = 24 - 175.75

               B                 = - 151.75

The equation for those inputs and outputs is:
0.25 *input - 151.75 = Output  

Answer:

10

Step-by-step explanation:

Given expression:

                   20 - \(\frac{15 + 3(5)^{2} }{5^{2} - 4^{2} }\)

     To solve this problem, we use the order of operation:

P - Parentheses

E - exponents

M - multiplication

D - division

A - Addition

S - Subtraction

  Now solve the parentheses first;

     =   20 - \(\frac{15 + 3x 25}{5^{2} - 4^{2} }\)

     =    20 - \(\frac{15 + 75}{5^{2} - 4^{2} }\)

     Now solve the exponents:

    = 20 - \(\frac{15 + 75}{25 - 16}\)

    Now solve the division:

     = 20 - \(\frac{90}{9}\)

     = 20 - 10

     = 10

Answer:

  see below

Step-by-step explanation:

The result of the expression is P∨Q, since the P∧¬R term is subsumed by the P term. That is, ..

  (P∨Q) ∨ (P∧¬R) = Q ∨ (P ∨ P∧¬R) = Q∨P

Answer:

1

Step-by-step explanation:

Given the question above :

The probability distribution :

X : ___ 1 ___ 2 ___ 3 ___ 4 ____ 5

P(x): _ 0.1 __ 0.1 __ 0.6 _ 0.1 __ 0.1

The Variance : Var(X) = (Σx²*p(x)) - μ²

μ = E(X) = Σ(X * p(x)) :

Σ(X * p(x)) = (1*0.1)+(2*0.1)+(3*0.6)+(4*0.1)+(5*0.1)

μ = 3

Var(X): [(1^2*0.1)+(2^2*0.1)+(3^2*0.6)+(4^2*0.1)+(5^2*0.1)] - 3²

= 10 - 9

= 1

Hence. Variance = 1

The value of x in the rectangle is 19/8

The complete question is added as an attachment

From the question, we have the following parameters that can be used in our computation:

The shape is a rectangle

Opposite sides of a rectangle are equal

So, we have

BD = AE

Using the above as a guide, we have the following equation

8x - 6 = 13

So, we have

8x = 19

Solving for x, we have

x = 19/8

More details are needed to calculate the measure of angle EBA

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Answer:

40 + 5 = 45

45 ÷ 9 = 5

Therefore, he will have 5 boxes of rocks.

Answer:

To calculate the percent increase in the amount of interest paid between a household with a 740 credit score and one with a 730 credit score , we need to find the total amount paid for each score and then calculate the percent increase.

From the given table , we can see that the simple interest rate for a credit score of 740-799 is 15%, and the total number of payments is 33 . So, the total amount paid for a principal balance of $18,000 with a credit score of 740 is:

Principal + Total Interest = Total Amount Paid

$18,000 + ($18,000 * 15% * 33/12) = $20,700

Similarly, for a credit score of 730, we need to use the simple interest rate for a credit score of 670-739 , which is 18%, and the total number of payments is 38. So, the total amount paid for a principal balance of $18,000 with a credit score of 730 is:

Principal + Total Interest = Total Amount Paid

$18,000 + ($18,000 * 18% * 38/12) = $21,240

Now, to calculate the percent increase in the amount of interest paid , we can use the following formula:

Percent increase = |(New value - Old value) / Old value| * 100%

Plugging in the values, we get:

Percent increase = |($21,240 - $20,700) / $20,700| * 100%

Percent increase = 2.6%

Rounding to the nearest tenth, we get the final answer as:

Percent increase = 2.6% ≈ 2.5%   (rounded to the nearest tenth)

Therefore, the answer is O 2.5%.

Step-by-step explanation:

Answer:

\( \sf \: d) \: 82\)

Step-by-step explanation:

Given information,

→ d = 10

→ u = 7

→ e = 3.2

The expression is,

→ d(e + 5)

Let's evaluate the expression,

→ d(e + 5)

→ 10(3.2 + 5)

→ 10 × 8.2

→ 82

Hence, option (d) is correct.

Answer:

Option D) 82

Step-by-step explanation:

Given ,

d = 10

u  = 7

e = 3.2

To Find  : \(d(e+5)\)

Applying the values in the equations we get

\(10(3.2+5)\\\) Applying Distributive property

\(32+50 = 82\)

Hence , Option D) is the answer

6 tables are required. Each prime number attender should serve 3 customers each.

The prime numbers between 1 and 100 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

All the numbers other than prime numbers are composite numbers.

The composite numbers from 1 to 100 are: 1, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100.

Now, as there are 25 primes and 75 composites in the group that visited the restaurant, we can calculate the number of tables required by dividing the number of people by the seating capacity of each table.

Each table has a seating capacity of 15, so the number of tables required will be: Number of tables = (Number of customers)/(Seating capacity of each table)Number of customers = 25 (the number of primes) + 75 (the number of composites) = 100Number of tables = 100/15 = 6 tables

Therefore, 6 tables are required.

Now, as each prime number attender has to serve an equal number of customers, we need to calculate how many customers each one should serve.

Each prime attender has to serve 75/25 = 3 customers each, as there are 75 composites and 25 primes.

Thus, each prime number attender should serve 3 customers each.

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9514 1404 393

Answer:

  the correct choice is marked

Step-by-step explanation:

The process for completing the square would generally put x-terms on one side of the equal sign and the constant term on the other side:

  x^2 +4x = 3

Then the square of half the x-coefficient would be added to both sides. Here, that is (4/2)^2 = 4.

  x^2 +4x +4 = 7

In order to make this match one of the answer choices, we must multiply both sides by 4.

  4x^2 +16x +16 = 28

Now, we can factor the left side to see a match to the last answer choice.

  (2x +4)^2 = 28

_____

Additional comment

As you can see, we had to deviate from the "complete the square" process to arrive at an equation that matches an answer choice. It cannot be said that the chosen equation "is used in the process." It might be useful to discuss this question with your teacher.