The sum of double a number and six times a number is 48. Find the number. show your work

We can write the measurements as -

a = 7.8

b = 9.24

(B) = 50°

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is that two triangles in the map below are similar.

We can write -

{ 1 } -

sin (A) = a/c

a = c sin(A)

a = 12 sin(40°)

a = 12 x 0.65

a = 7.8

{ 2 } -

cos (A) = b/c

b = c cos(A)

b = c cos(40°)

b = 12 x 0.77

b = 9.24

{ 3 } -

tan (B) = b/a

tan (B) = 9.24/7.8

tan (B) = 1.19

(B) = 50°

Therefore, we can write the measurements as -

a = 7.8

b = 9.24

(B) = 50°

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Answer:

AAA similarity

Step-by-step explanation:

      In ΔECD,

            ∠E + ∠D + ∠ECD = 180°   {Angle sum property}

            ∠E + 36 + 123       = 180°

                      ∠E + 159     = 180

                                   ∠E = 180 - 159

                                  ∠E = 21°

In ΔACB,

           ∠A + ∠B + ∠ACB = 180°   {Angle sum property}

            ∠ACB + 36 + 21       = 180°

                      ∠ACB + 57    = 180

                                   ∠ACB = 180 - 57

                                  ∠ACB= 123°

    In ΔECD & ΔBCA,

               ∠A ≅ ∠D

              ∠B ≅ ∠A

           ∠BCA ≅ ∠ECA

ΔECD ~ ΔBCA by Angle Angle Angle similarity.

The expression 0.13 represents a 13% decrease in value each year. Thus, Option D is the correct option.

Perry used the formula V (t) = 24,450(1-0.13)^t to find the value of his car t years after he purchased it.

The expression given above represents an expression of exponential decrease which is given by the formula -

y = a(1 - r)^t

Where,

y = Value after time t

a = Initial value

r = Rate of decrease

t = Time

Comparing both expressions we get,

r = 0.13

This is the rate of decrease in the value of the car.

Converting to Percentage = 0.13 × 100

= 13% decrease.

Hence, the expression 0.13 represents a 13% decrease in value each year. Thus, Option D is the correct option.

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Her monthly finance charge will be: $1.80

Now, According to the question:

Gabriela has an average daily balance of $232. 94 on her credit card.

and, Her card charges 9. 25% annual interest.

Based on the given condition:

$232.94 × 9.25%

232.94 × 9.25/100

Calculate the product or quotient:

232.94 × 9.25/100 = 21.54694

21.54694 rounds up to 21.55

Her monthly finance charge will be:

21.55/12 = 1.7958333333

1.7958333333 round up 1.80

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The time needed until there are 82 bacteria is given as follows:

23.8 hours.

An exponential function is defined as follows:

[tex]y = a(b)^{\frac{x}{n}}[/tex]

In which:

The parameters for this problem are given as follows:

a = 40, b = 2, n = 23.

Hence the function is:

[tex]y = 40(2)^{\frac{x}{23}}[/tex]

There will be 82 bacteria at a time x when y = 82, hence:

[tex]82 = 40(2)^{\frac{x}{23}}[/tex]

[tex](2)^{\frac{x}{23}} = 2.05[/tex]

Applying the logarithm of base 2 to each side, we have that:

x/23 = log2(2.05)

x = 23 x log2(2.05)

x = 23.8 hours.

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Neither of the ordered pairs is a solution of the equation 6x + 3y = 15.

Linear equations are equation involving one or more expressions including variables and constants and the variables are having no exponents or the exponent of the variable is 1.

Linear equations may include one or more variables.

Given linear equation is 6x + 3y = 15

Substitute each of the point given in the options.

A : (3, -2)

6x + 3y = (6 × 3) + (3 × -2) = 18 - 6 = 12 ≠ 15

B : (2, 2)

6x + 3y = (6 × 2) + (3 × 2) = 12 + 6 = 18 ≠ 15

Neither (3, -2) nor (2, 2) are the solutions of the equation.

Hence neither is the solution of the given linear equation.

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Answer:

r > -3

Step-by-step explanation:

dwbi jus know that's the answer lil one

Step-by-step explanation:

there should be two question like this

The table which matches the equation and includes only viable solutions is the third table.

An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side

Given that equation is,

c = 3.5b

Here b is the number of loaves of bread and c is the total cost of the bread.

All the table values matches the equation when we substitute the value of b and c in the equation.

But number of loaves of bread cannot be fractions or negative numbers.

So the most viable solution is the third table consisting of values of b as  0, 3, 6, 9 and corresponding value of c as 0, 10.5, 21, 31.5.

Hence the 2-column table with the first column labeled loaves (b) with entries 0, 3, 6, 9 and the second column labeled cost (c) with entries 0, 10.5, 21, 31.5 is the correct one.

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Answer:

The third one

Step-by-step explanation:

Answer:  We can use the concept of rates to solve this problem.

A rate is a ratio of the amount of work done to the amount of time it takes to do the work. We can find the rate of work for the 4 painters by dividing the number of rooms they painted by the number of hours it took them:

Rate = Rooms painted / Hours

Rate = 12 rooms / 8 hours = 1.5 rooms per hour

Now we can use this rate to find out how long it will take 7 painters to paint 21 rooms. To do this, we'll use the formula:

Time = Rooms / Rate

Time = 21 rooms / 1.5 rooms per hour = 14 hours

So it would take 7 painters working at the same efficiency as the 4 painters 14 hours to paint 21 rooms.

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

the sum of the 3 angles in the triangle = 180°

sum the 3 angles and equate to 180

2x + 1 + 5x + 5 + 90 = 180

7x + 96 = 180 ( subtract 96 from both sides )

7x = 84 ( divide both sides by 7 )

x = 12

The length of diagonal of a parallelogram is 2546 inches.

A quadrilateral with equal pairs of opposing sides and angles is referred to as a parallelogram. It has a pair of opposing sides that are parallel to one another. The inner angles are supplementary in nature, meaning that the sum of them equals 180 degrees. A parallelogram's diagonals are bisected by one another, or divided into two equal portions. A parallelogram's internal angles add up to 360 degrees.

The diagonals of parallelogram are given by:

x = √(a^2 + b^2 – 2ab cos A) = √(a^2 + b^2 + 2ab cos B)

Given the two sides are 35 and 75 inches.

We also know that the adjacent angles of parallelogram are supplementary:

∠A + ∠B = 180

140 + ∠B = 180

∠B = 40

Substitute the value of sides and angle in the equation:

x = √(a^2 + b^2 – 2ab cos A) = √(a^2 + b^2 + 2ab cos B)

x = √((35)^2 + (72)^2 + 2(35)(72) cos 140)

x = 1225 + 5184 + (5040)(-0.766)

x = 1225 + 5184 - 3860

x = 2546 inches

Hence, the length of diagonal is 2546 inches.

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Answer: o

Step-by-step explanation:

The solutions to the system of equations f(x) = g(x) are given as follows:

x = 0 and x = 1.

The reason for these solutions is that f(x) and g(x) have the same numeric value at x = 0 and at x = 1.

A system of equations is composed by multiple equations.

The solution to the system of equations is the point of intersection of all these equations, which happen when all these equations have the same numeric value.

The x-values for which the numeric values of f(x) and g(x) are the same are given as follows:

x = 0 and x = 1.

Which are the solutions to the system of equations.

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a. The contingency table for the given data is attached file below.

b. The proportion of lizards that were either species A or B is 0.605.

c. The probability that a species C lizard in this study did not survive is 0.4667.

a.

The contingency table for the given data is attached file below.

b.

The proportion of lizards that were either species A or B can be calculated as:

P(A or B) = (15+8)/(15+8+6+9+4)

P(A or B) = 23/38

P(A or B) = 0.605

c.

The probability that a species C lizard in this study did not survive can be calculated as:

P(Not survive| C) = 7/15

= 0.4667

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The numerical value of x in the expression 5x - 7 is 7.65.

A square is simply a 2-dimentional plane figure with four equal sides and four right (90°) angles.

The perimeter of the square is the sum of the length of all four sides of the square.

P = 4l

Given the data in the question

To find the value of x, plug the given values into the above equation and simplify.

P = 4l

125 = 4( 5x - 7 )

125 = 20x - 28

125 + 28 = 20x

153 = 20x

20x = 153

x = 153/20

x = 7.65

Therefore, the value of x is 7.65.

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When all team members agree on the level of performance that is acceptable, they have a shared standard.

Teamwork is a collective approach in order to achieve a common goal for the growth of the organization. Each member of the team must be agreed on the methods and sources to be implemented in achieving the goal.

In order to achieve the goal, each individual has to work on his area but with the team to achieve the goal of the company. Each individual works together and share their efforts collectively so that the goal can be achieved.

Shared standard refers to the point of acceptance by each individual on a particular point and must agreed on the merging of the work collectively.

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There are 2 ways to make a series of 11 moves.

Since the checker can move to either the blue or yellow space in each move, there are 2 possibilities for each move. We want to find the number of sequences of 11 moves that result in the checker returning to the red space, i.e., a sequence of moves that alternates between the red and one of the other two spaces.

There are 2 possible sequences of 11 moves: RBYB...BYBR and BYBY...YBRB, where R represents the red space, B represents the blue space, and Y represents the yellow space.

So, in total there are 2 ways to make a series of 11 moves which result in the checker returning to the red space.

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Answer:

0.2

Step-by-step explanation:

8 is bigger than 5 so we will make 8 zero and will will add 1 to the next number

Answer:

0.2

Step-by-step explanation:

Hope this helps

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Answer:

6000

Step-by-step explanation:

Interest of 3% a year of principal of 200,000 = 6000

monthly payment of 843 also includes a portion of amortization of the principal itself, which you can ignore cause the question only asked for the interest portion.

this is an unclear question cause it didn't say PER YEAR interest paid.  you only need to remember interest% * principal = ANNUAL interest payment $.  Then you can divide that over 12 months, which is 500$ per month.

Check the picture below.

[tex]5x+70=24x-25\implies 70=19x-25\implies 95=19x \\\\\\ \cfrac{95}{19}=x\implies \boxed{5=x} \\\\[-0.35em] ~\dotfill\\\\ 4y+2=x+y\implies 4y+2=5+y\implies 3y+2=5 \\\\\\ 3y=3\implies y=\cfrac{3}{3}\implies \boxed{y=1} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{5(5)+70}{\measuredangle R=95^o}\hspace{5em}\stackrel{24(5)-25}{\measuredangle C=95^o}\hspace{5em}\stackrel{4(1)+2}{QR=6}\hspace{5em}\stackrel{5+1}{BC=6}[/tex]

Hence the general term of the given quadratic number pattern is given by Tn = n²+4n-12 is verified.

The number pattern = -7,0,9,20

Let the general term of the given quadratic number pattern is given by

Tn = an²+bn + c

When T = -7; n = 1

⇒ -7 = a(1)² +b (1) +6

⇒ a + b + c=-7 -----------1

At n=2, T₂ = 0

⇒ 0 = a(2)²+b(2)+c

4a+2b+c=0 ---------------2

At n=3, T = 9

⇒ 9 = a(3)²+b(3) +c

⇒ 9a+3b+c= 9 ---------3

Subtracting 3 from 2

⇒-5a-b = -9 --------4

Subtracting 2 from 1

-3a-b = -7  -----------5

Subtracting 5 from 4

2a = 2

⇒ a=1

Using eq 5, we get

-3(1) - b = -7

-b = -7 + 3

b = 4

From eq 1, a + b + c=-7 we get the value of c,

1 + 4 + c = -7

c = -7 -5

c = -12

substitute the values of a, b, and c in Tn = an²+bn + c

Tn = n² + 4n - 12

Hence the general term of the given quadratic number pattern is given by Tn = n²+4n-12.

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Answer:

--------------------------

If we put the number of sticks in a sequence we get:

As we see the difference of the terms is common and is 4, and the first term is 6. It is therefore an arithmetic progression with:

Use the nth term equation:

Substitute n = 6 to find the number of sticks of the 6th term:

Find the nth term:

Answer:

BAD

Step-by-step explanation:

i think its triangle BAD sorry if its not would make the most sense i think

200 melons are good in 60% of the cases.

Create a favourable first impression. Offers customers problems-solutions and a positive experience. Make good use of the newest technologies. clear language for business transactions. Maintain open communication.

The Most Important Characteristic for Sales. No matter what kind of sale it is, or what industry it is in, the most crucial factor that influences someone's decision to buy is always the price. And making oneself increasingly valuable is the key to selling and selling oneself.

200 equates to 100%.

Are good = 200 - 80 = 120

200me = 100%

120me = 100%/200me x = 120000%/200me x = 60%

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[tex]7+2^3[/tex]

[tex]7+(2^3)[/tex]

[tex]7+8[/tex]

[tex]=\fbox{15}[/tex]

The correct option is Option C.

C.) The sequence is a function because each rule produces one output for each input.

Meaning of a sequence:

A grouping of any objects or a collection of numbers in a particular order that follows some rule is known as a sequence.

The difference between all the following terms in the sequence 10..6.11.8.13 is 12.

As a result, the series is an example of a linear function.

As a linear function, the sequence will always provide an output that complies with the rule.

As a result, the sequence is a function because each rule yields a single output for each input; hence, option C is the right response.

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The following question may be like this:

Explain how the sequence 10.6, 11.8, and 13 is a function even though there are multiple rules that can represent it.

A)The sequence is a function because the domain is unrestricted.

B)The sequence is a function because more than one rule can represent it.

C)The sequence is a function because each rule produces one output for each input.

D)The sequence is a function because each rule produces multiple outputs for each input.

If Lilyana runs a cake decorating business for which 10% of her orders come over telephone , then probability that it takes fewer than 5 orders for Lilyana to get her first telephone is 0.3439  .

The geometric distribution is used to calculate the required probability ,

In this case, the success is a telephone order, and

the failure is an order placed in some other way.

Let probability of success is ⇒ p , and

let the number of orders needed to get the first telephone order be = x . Then, X follows a geometric distribution with parameter p, so we have:

Probability of P(X = k) is = (1-p)^(k-1) × p ;

where k is the number of orders needed.

the probability of success (p) is  = 10% = 0.1

we have to find the probability that it takes fewer than 5 orders for Lilyana to get her first telephone order of the month.

that means : P(X<5) = P(X=1) + P(X=2) + P(X=3) + P(X=4)

Substituting the values of p = 0.1 ,

we get ;

= (1-0.1)⁰ × 0.1 + (1-0.1)¹ × 0.1 + (1-0.1)² × 0.1 + (1-0.1)³ × 0.1

Simplifying further ,

we get ;

= 0.1 + 0.09 + 0.081 + 0.0729

Adding all the terms ,

we have ;

= 0.3439

Therefore , the probability that it takes fewer than 5 orders for Lilyana to get her first telephone order of the month is 0.3439.

The given question is incomplete , the complete question is

Lilyana runs a cake decorating business, for which 10% of her orders come over the telephone. Let C be the number of cake orders Lilyana receives in a month until she first gets an order over the telephone. Assume the method of placing each cake order is independent.

Find the probability that it takes fewer than 5 orders for Lilyana to get her first telephone order of the month.

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The length of Jane's shadow is approximately 2.85 feet

To find the length of Jane's shadow, we can use the principle of similar triangles.

The ratio of the shadow length to the object height is the same for both King Neptune and Jane, then we can set up a proportion:

(shadow length of King Neptune) / (height of King Neptune) = (shadow length of Jane) / (height of Jane)

Given that King Neptune's shadow is 3 13 5 feet and the statue is 34 feet tall.

By substituting these values into the proportion:

(3 13 5 feet) / (34 feet) = (shadow length of Jane) / (5' 9")

To find the shadow length of Jane, we can cross-multiply and solve for the shadow length:

(3 13 5 feet) * (5' 9") = (shadow length of Jane) * (34 feet)

Converting Jane's height into feet: 5'9" = 5*12 +9 = 69 inches = 5.75 ft

(3 13 5 feet) * (5.75 ft) = (shadow length of Jane) * (34 feet)

shadow length of Jane = (313.5*5.75) / 34 = 2.85 ft

So, The length of Jane's shadow is approximately 2.85 feet.

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