The Half-life of radium is 1690 years. If 70 grams are present now, how much is left in 710 years

When thinking about lines of reflection, imagine that there exists a mirror and your trying to guess the location of the mirror on the xy plane. It will have to be located on horizontal line where y is -5. So your line of reflection is y = -5.

The component of vector BC in the direction of the x-axis is (-6, 0).

To find the component of vector BC, we need to find the projection of vector BC onto a given vector.

The component of vector BC in the direction of the x-axis can be found using the formula:

comp(x) = (BC · unit(x)) · unit(x)

where;

To find unit(x), we can use the following formula:

unit(x) = (1, 0)

since the x-axis is the horizontal axis and its unit vector has a horizontal component of 1 and a vertical component of 0.

Now, let's calculate the component of vector BC in the direction of the x-axis:

BC = C - B = (-4, -5) - (2, -7) = (-6, 2)

|BC| = √((-6)² + 2²)

|BC| = √(40)

unit(x) = (1, 0)

(BC · unit(x)) = (-6) · 1 + (2) · 0 = -6

comp(x) = (BC · unit(x)) · unit(x) = (-6) · (1, 0) = (-6, 0)

Learn more about component of vectors here: https://brainly.com/question/13416288

#SPJ1

The complete question is below:

Find the component of the Vector BC on x-axis, if B=(2,-7) and C= (-4,-5)

Answer is below.

Let's call the height of the house "h".

The ladder is propped up against the house, forming a right triangle with the wall of the house and the ground. The ladder is the hypotenuse of the triangle, and the height of the house is one of the legs.

We know that the length of the ladder is 16 feet, and the angle of elevation is 62 degrees. We can use trigonometry to find the height of the house.

The trigonometric function that relates the angle of elevation to the height and length of the ladder is the tangent function:

tan(62) = h/16

To solve for h, we can multiply both sides by 16:

16 tan(62) = h

Using a calculator, we can evaluate the tangent of 62 degrees to get:

16 tan(62) ≈ 28.6

So the height of the house is approximately 28.6 feet.

By selling a bag at rs1500 and rs2100, there is some loss and profit respectively. if the loss is twice the profit , its cost price​ is Rs 1900.

The cost price is the amount of money that a seller pays to acquire or produce a product or service. It includes all the expenses incurred in the production or purchase of the product, such as the cost of raw materials, labor, packaging, shipping, and other overhead expenses.

Based on the given inforemation , we can represent the cost price by x.

x-1500 = 2 (2100- x)

x-1500 = 4200 -2x

3x = 5700

x= 1900

Learn more about  cost price at:

https://brainly.com/question/19104371

#SPJ1

Answer:

Step-by-step explanation:

from the measurements and from the figure it is a right triangle (triple of Pythagoras 3-4-5)

Area = 1/2 b × h

Area = 1/2 3a² × 4a²

Area = 1/2 [tex]12a^{4}[/tex]

Area = [tex]6a^{4}[/tex]

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

Perimeter

find the hypotenuse

by the rule of Pythagorean triples it is 5a²

so

3a² + 4a² + 5a² =

12a² (perimeter)

Answer:35.09

Step-by-step explanation:From the question given above, the following data were:Opposite = 12Hypothenus = X Angle θ = 20 °

Answer: Can't solve

Step-by-step explanation: no equation sign

The equation of the ellipse is [tex]}(x-3)^2/4^2 + (y+1)^2/2^2 = 1} or, 4x^2 + 4y^2 - 24x - 8y - 7 = 0[/tex].

An ellipse is a type of closed curve which is symmetrical in shape and is the set of all points in a plane such that the sum of the distances from two fixed points (known as foci) is constant. It is a type of conic section, a curve obtained by intersecting a cone by a plane. Its shape is similar to that of an oval, but it is more elongated and slender. Ellipses are found in nature, such as in the orbits of the planets, and are used in a variety of applications, such as in engineering and architecture. They are also used in mathematics, where they can be used to represent a range of equations and to study the properties of shapes.

The equation of an ellipse with center (h,k), major axis of length 2a and minor axis of length 2b is given by:
[tex](x-h)^2/a^2 + (y-k)^2/b^2 = 1[/tex]
Given: h=3, k=-1, a=4, b=2
Therefore, the equation of the ellipse is:

[tex](x-3)^2/4^2 + (y+1)^2/2^2 = 1\\or, 4x^2 + 4y^2 - 24x - 8y - 7 = 0[/tex]

To learn more about ellipse
https://brainly.com/question/29047371
#SPJ1

For the functions  f(x)= 1/x-3 -1 and g(x)= 1/x+4-3, the transformation of the graph shows that The graph shifts 7 units left and 2 units down.

What is the definition of a function?

In mathematics, a function is a rule or relationship between two sets of values, known as the domain and the range, that assigns to each element in the domain a unique element in the range.

More formally, a function f is a set of ordered pairs (x, y), where x is an element of the domain and y is an element of the range, such that each element in the domain is paired with exactly one element in the range. This can be written symbolically as:

f: X → Y

where X is the domain and Y is the range, and the arrow → indicates that each element in X is mapped to a unique element in Y.

Now,

To understand the transformation of the graph of the function f onto the graph of the function g, we need to analyze the effect of the changes in the functions.

First, let's consider the function f(x) = 1/(x-3) - 1. This function is a rational function with a vertical asymptote at x = 3 and a horizontal asymptote at y = -1. It is also reflected about the x-axis compared to the basic reciprocal function 1/x.

Next, let's consider the function g(x) = 1/(x+4) - 3. This function is also a rational function with a vertical asymptote at x = -4 and a horizontal asymptote at y = -3. It is also reflected about the x-axis compared to the basic reciprocal function 1/x.

To determine the transformation from f(x) to g(x), we need to compare the changes in the two functions. We can see that:

The term (x-3) in f(x) has been replaced with (x+4) in g(x), which indicates a horizontal shift of 7 units to the left.

The term -1 in f(x) has been replaced with -3 in g(x), which indicates a vertical shift of 2 units down.

Therefore,

              the graph of the function f has been shifted 7 units to the left and 2 units down to obtain the graph of the function g. So, the correct statement is:

                    The graph shifts 7 units left and 2 units down.

To know more about functions visit the link

brainly.com/question/12431044

#SPJ1

Right Question:-Given the functions f(x)= 1/x-3 -1 and g(x)= 1/x+4-3. Which statement describes the transformation of the graph of the function f onto the graph of the function g.

The graph shifts 2 units left and 7 units up.

The graph shifts 2 units right and 7 units down.

The graph shifts 7 units left and 2 units up.

The graph shifts 7 units right and 2 units down.

Answer:

The method that might have been used to result in Garcia winning is the Instant RunOff method.

In this method, voters rank the candidates in order of preference. If no candidate has a majority of first-choice votes, the candidate with the fewest votes is eliminated, and their votes are redistributed to the remaining candidates according to the second-choice preferences of the voters who supported the eliminated candidate. This process is repeated until one candidate has a majority of the votes.

In the preference ballot provided, Garcia received the most first-choice votes with a total of 26, but did not receive a majority of the votes. Therefore, the Instant RunOff method could have been used to determine the winner by redistributing the votes of the eliminated candidates (Müller and Ivanov) to the remaining candidates. Based on the preferences of the voters who chose Müller and Ivanov as their first choice, it is possible that the redistributed votes would have favored Garcia, leading to a majority win for Garcia.

The Instant RunOff method might not be fair to the other nominees because it can result in a candidate winning with a majority of second-choice or even lower preferences, rather than being the first choice of the majority of voters. This means that the candidate who is ultimately chosen may not have broad support, and may not be the candidate that the most voters actually prefer. Additionally, the method can be influenced by strategic voting, where voters rank their choices based on who they think is most likely to win, rather than their actual preferences. This can result in outcomes that do not accurately reflect the preferences of the voters.

Answer: Let's call the first term of the arithmetic sequence "a", and the common difference between the terms "d".

Then, we know that the sum of the first 8 terms is 88, so we can write:

a + (a + d) + (a + 2d) + ... + (a + 7d) = 88

Using the formula for the sum of an arithmetic sequence, we can simplify this to:

8a + 28d = 88

We also know that the product of the 1st and 8th terms is 120, so we can write:

a(a + 7d) = 120

Now we have two equations with two variables. We can solve for one of the variables in terms of the other and substitute into the other equation to solve for the remaining variable.

Solving the first equation for d:

d = (88 - 8a)/28

Substituting into the second equation:

a(a + 7[(88-8a)/28]) = 120

Multiplying both sides by 28 to eliminate the fraction:

28a^2 + 154a - 960 = 0

We can factor this quadratic equation as:

(2a - 15)(14a + 64) = 0

So either 2a - 15 = 0 or 14a + 64 = 0. Solving for "a" in each case, we get:

a = 15/2 or a = -64/14

Since we're looking for the first term of the sequence, which must be positive, we can discard the negative value and conclude that the first term is:

a = 15/2

Therefore, the first term of the arithmetic sequence is 7.5.

Step-by-step explanation:

Answer:

the answer was 31.88USD

The base of the triangle is 8 cm.

The following equation determines a triangle's area A:

A = (1/2) * b * h

Where the triangle's height (h) and base (b) are the same.

In this instance, the triangle's height is 12 cm, and its size is 48 cm²

When these values are added to the formula, we obtain the following:

48 = (1/2) * b * 12

By condensing the right side, we obtain the following:

48 = 6b

When we multiply both sides by 6, we get:

b = 8

Therefore, the base of the triangle is 8 cm.

To learn more about the Area of a triangle:

https://brainly.in/question/789756

The number of students that studied math and English in the class is 64 students.

1/5 of a class Study English and 3/5 study mathematics. The class consists of 80 Students.

Therefore, the number of students studying English and Maths in the class can be represented as follows:

number studying English = 1 / 5 (80)

number studying English =  16

number studying Math = 3 / 5 (80) = 240 / 5 = 48

Therefore, let's find the number of student that studied maths and English in the class

Student that studied math and English in the class = 48 + 16

Student that studied math and English in the class = 64

learn more on set theory here: https://brainly.com/question/25204750

#SPJ1

The set of solutions in R³ of the equation x1 - 3x2 + 2x3 = 1 is classified as a plane, hence option d is the correct option in the context of the problem.

The equation of a plane in 3-dimensional space can be written in different forms, but the most common one is the standard form:

Ax + By + Cz + D = 0

where A, B, and C are the coefficients of the variables x, y, and z, respectively, and D is a constant term.

Comparing the equation for this problem to the standard form, the coefficients are given as follows:

A = 1, B = -3, C = 2, D = -1.

Hence option d is the correct option.

More can be learned about the equation of a plane at https://brainly.com/question/30465472

#SPJ1

The items that can be discharged when filing fοr bankruptcy are:

b. credit card debt

d. student lοans (in rare cases, and οnly if the debtοr can prοve undue hardship)

e. sοme taxes (under certain circumstances)

g. sοme fees (depending οn the type οf fees)

Bankruptcy helps peοple whο can nο lοnger pay their debts get a fresh start by liquidating assets tο pay their debts οr by creating a repayment plan. Bankruptcy laws alsο prοtect financially trοubled businesses.

The items that can be discharged when filing fοr bankruptcy are:

b. credit card debt

d. student lοans (in rare cases, and οnly if the debtοr can prοve undue hardship)

e. sοme taxes (under certain circumstances)

g. sοme fees (depending οn the type οf fees)

The items that cannοt be discharged in bankruptcy are:

a. autο car lοan (if yοu want tο keep the car, yοu need tο cοntinue making payments)

c. mοrtgage lοans (if yοu want tο keep the hοuse, yοu need tο cοntinue making payments)

f. child suppοrt (this is a nοn-dischargeable debt)

Hence, the best answer frοm the chοices prοvided are:

The items that can be discharged when filing fοr bankruptcy are:

b. credit card debt

d. student lοans (in rare cases, and οnly if the debtοr can prοve undue hardship)

e. sοme taxes (under certain circumstances)

g. sοme fees (depending οn the type οf fees)

To learn more about the bankruptcy visit:

https://brainly.com/question/26392690

#SPJ1

Answer:

If x = $30 is the regular price of a souvenir, then the sale price for each additional souvenir will be 0.3x = 0.3($30) = $9 less than the regular price. Therefore, the sale price of each additional souvenir will be:

Sale price = Regular price - $9

Sale price = $30 - $9

Sale price = $21

Since Carmen purchases 10 souvenirs, she pays the regular price for the first souvenir and the sale price for the remaining 9 souvenirs. Therefore, the total cost for all 10 souvenirs will be:

Total cost = (Regular price for first souvenir) + (Sale price for 9 additional souvenirs)

Total cost = ($30) + ($21 x 9)

Total cost = $30 + $189

Total cost = $219

Therefore, Carmen pays $219 for 10 souvenirs during the sale.

Step-by-step explanation:

(C) "Your employer will typically allow you to pay reduced taxes and premium deductions each pay cycle" is an excellent justification for enrolling in an employer-sponsored retirement savings plan.

You are permitted to contribute as much of your salary as you choose to the Retirement Savings Plan on a tax-advantaged basis, up to the yearly limit established by the Federal Revenue Agency (IRS).

A retirement savings plan (RSP), also known as an RRSP, is a form of financial account used in Canada to hold savings and investment assets.

When opposed to investing outside of tax-preferred accounts, RRSPs offer a number of tax benefits.

They were launched in 1957 to encourage both workers and independent contractors to save for retirement.

They are subject to a number of limitations outlined in the Canadian Income Tax Act.

Savings accounts, guaranteed investment certificates (GICs), bonds, mortgage loans, income trusts, mutual funds, corporate shares, exchange-traded funds, foreign currency, and funds sponsored by labor are examples of approved assets.

Therefore, (C) "your employer will typically allow you to pay reduced taxes and premium deductions each pay cycle" is an excellent justification for enrolling in an employer-sponsored retirement savings plan.

Know more about retirement savings plans here:

https://brainly.com/question/3090325

#SPJ1

The child at the 69th percentile is 5.5279 years οld.

The age οf the children in kindergarten οn the first day οf schοοl is unifοrmly distributed between 4.81 and 5.71 years οld. We can find the tοtal prοbability οf the child being between 4.81 and 5.71 years οld by subtracting the prοbability οf the child being yοunger than 4.81 frοm the prοbability οf the child being yοunger than 5.71:

P(4.81 ≤ age ≤ 5.71) = P(age ≤ 5.71) - P(age < 4.81)

The prοbability οf the child being yοunger than 4.81 is 0 since the age cannοt be negative.

The prοbability οf the child being yοunger than 5.71 can be calculated as:

P(age ≤ 5.71) = (5.71 - 4.81) / (5.71 - 4.81) = 1

Therefοre,

P(4.81 ≤ age ≤ 5.71) = 1 - 0 = 1

This means that the prοbability οf the child being οlder than 5 years οld is:

P(age > 5) = P(5.00 < age ≤ 5.71) = 1 - P(age ≤ 5.00) = 1 - [(5.00 - 4.81) / (5.71 - 4.81)] = 0.7018

Sο the prοbability οf the child is οlder than 5 years οld is 0.7018.

Tο find the age οf a child at the 69th percentile, we need tο find the age x such that the prοbability οf the child being yοunger than x is 0.69.

Let's call the age at the 69th percentile x. Then we have:

P(age < x) = 0.69

We can sοlve fοr x as fοllοws:

( x - 4.81 ) / ( 5.71 - 4.81 ) = 0.69

x - 4.81 = 0.69 ( 5.71 - 4.81 )

x - 4.81 = 0.69

x = 4.81 + 0.69 ( 5.71 - 4.81 )

x = 5.5279

Therefοre, the child at the 69th percentile is 5.5279 years οld.

Learn more about probability

https://brainly.com/question/30034780

#SPJ1

Answer:

B) 2.883

Step-by-step explanation:

288.3/100=2.883

Check

2.883x100= 288.3

Answer:

Step-by-step explanation:

We can start by finding the weight lifter's original body mass before the training session:

Let x = original body mass

Then, we know that 15% of x is equal to 78 kg - x:

0.15x = 78 - x

1.15x = 78

x = 78/1.15

x ≈ 67.83 kg

Therefore, the weight lifter's original body mass was approximately 67.83 kg.

Now, let's find the difference between the weight lifter's new body mass and his original body mass:

78 kg - 67.83 kg ≈ 10.17 kg

So, the weight lifter did indeed gain approximately 10 kg of weight after the training session. Therefore, his claim is valid.

Step-by-step explanation:

the original price was $225.

that is the 100% we are basing on.

the new price is $340.

the difference is 340 - 225 = $115

to know the % increase we need to calculate how many % of the original 100% are these $115.

1% = 100%/100 = 225/100 = $2.25

$115 are as many % as 1% fits into it :

115 / 2.25 = 51.11111111...% ≈ 51%

if we need to include the additional $50 bags fee, then the price difference is not $115 but $165.

165/2.25 = 73.33333333...% ≈ 73%

the percent increase of the ticket is about 51%.

the percent increase with the baggage fee is about 73%.

Answer:

B.1/100 is your answer for your question

Answer:
Part a:

[tex]A(x)=10x^2+53x+63[/tex]

Part b:
2nd degree polynomial.

Part c:
Check step by step.

Step-by-step explanation:

since the sides of the rectangle are (2x+7) and (5x+9), the area is given by the product of the sides:

[tex]A=(2x+7)(5x+9)=10x^2+18x+35x+63=10x^2+53x+63[/tex]

So the area as a function of X is given by:
[tex]A(x)=10x^2+53x+63[/tex]

Notice is a second degree polynomial in standard form

To ensure part c, notice we can also multiply the sides in different order. This is A*B must be B*A for the sides of the rectangle. Lets check

[tex]A=(5x+9)(2x+7)=10x^2+35x+18x+63=10x^2+53x+63[/tex]
Since we obtained the same answer in part A the closure property for multiplication is check for the polynomial.

Answer:If Krista drank 3/16 of the water in her water bottle in the morning, 5/16 in the afternoon, and 3/16 in the evening, then the total amount of water she drank during the day is:

3/16 + 5/16 + 3/16 = 11/16

This means that the fraction of water that is left at the end of the day is:

1 - 11/16 = 5/16

Therefore, Krista has 5/16 of the water remaining in her water bottle at the end of the day.

Step-by-step explanation:

The equation is true, we have confirmed that x = 3 is the correct solution.

The equation shown in the image is:

4x + 12 = 24

To write a related multiplication equation, we can simplify the left side of the equation by factoring out the common factor of 4:

4(x + 3) = 24

By multiplying both sides of the equation by 4, we can now find x:

x + 3 = 6

x = 6 - 3

x = 3

Therefore, the solution to the original equation is x = 3. We can check this solution by substituting it back into the original equation:

4x + 12 = 24

4(3) + 12 = 24

12 + 12 = 24

24 = 24

Since the equation is true, we have confirmed that x = 3 is the correct solution.

To know more about multiplication equation visit:

https://brainly.com/question/30449771

#SPJ1

A possible graph that shows the movement of the kite over time is shown below.

Learn more about graphs in https://brainly.com/question/17267403

#SPJ1

We can say that after answering the offered question As a result, Jamie interest will have $1,746 in her account after four years. Option B is the correct answer.

Simple interest is calculated via dividing the investment by the interest rate, the duration of the loan, and perhaps other factors. In marketing, the formula is simple: return = principal + interest + hours. This method makes it easiest to calculate interest. The most common approach to compute interest is to use the percentages of the principle balance. If he borrows $100 from a buddy and promises to repay that with 5% interest, he will only pay his percentage of the total interest. $100 (0.05) = $5. When you borrow money, you must charge interest and extending when you lend it. The most often, interest is determined as an indicator of the overall of the loan balance. This percentage is known as the loan's interest.

To answer this problem, we can utilise the compound interest formula:

[tex]A = P(1 + r/n)^(nt) (nt)[/tex]

where A is the total amount

P = the initial principal ($1,500 in this example).

r represents the yearly interest rate (3.8%).

n denotes the number of times interest is compounded per year (12 for monthly)

t denotes the number of years (4 in this case)

When we plug in the values, we get:

[tex]A = 1500(1 + 0.038/12)^(12*4) \sA ≈ 1745.99[/tex]

As a result, Jamie will have $1,746 in her account after four years. Option B is the correct answer.

To know more about interest visit:

https://brainly.com/question/28792777

#SPJ1

Answer: X = 1, Y = 29

Step-by-step explanation:

X + 6(-1/6X + 5) = 30

X - 1 +30 = 30

X + 29 = 30

X = 1

Y = -1/6*1 + (5/1)*6

Y = -1/6 + 30/6

Y = -1 + 30

Y = 29