For this problem, we are interested in predicting GNP of a country using the birth rate and life expectancy of females for that country. The estimated regression equation for these data is expressed with the following formula.
$\widehat{GNP_i} = -17684.99 - 132.97(\text{Birth Rate})_i + 307.97(\text{Life Expectancy Female})_i$
1. What is the predicted change in GNP for a one unit increase in birth rate, while holding female life expectancy constant?
2. What is the predicted change in GNP for a one unit increase in female life expectancy, while holding birth rate constant?
3. In a certain country, the birth rate is 23 live births per thousand in the population and the female life expectancy is 62. What is the predicted GNP for this country?
4.Suppose the country in number 3 had an observed GNP of 9832. Calculate the residual for this country.

Answer:

a. $1,240

b. $1,960

c. 9 years

d. 17 years

Step-by-step explanation:

For interest you multiply the percent with 1,000 and add the number you get for your answer. So 1,000 times 6% is 60. Each year the account earns $60 worth of interest. You multiply 60 by 4 and your result is 240. You add 240 to 1,000 and get your answer for a $1,240.

You repeat the same process for b. 16 times 60 is 960. You add 960 and 1,000 and your answer is $1,960.

So we know the account already has $1,000 so all that has to be done is to divide 500 by 60 and your result is 8.3. However you it is anual interest so you cannot but in a decimal so you round up to 9. Making it 9 years

Same process dividing 1,000 by 60 which gives you 16.6 rounding up to 17. Making it 17 years.

The equation that represents the relationship between p and a is a = p - 6.

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical expression:

y - y₁ = m(x - x₁)

Where:

First of all, we would determine the slope of this line;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (1 - 0)/(7 - 6)

Slope (m) = 1/1

Slope (m) = 1.

At data point (6, 0) and a slope of 1, a linear equation for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - 0 = 1(x - 6)  

y = x - 6 ≡ a = p - 6

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Therefore, we need 17 towels of brand C to clean a single sq ft

Brand A:

we add up all the sq ft cleaned by brand a

0.75+1.50+2.25=4.5

and we add up all paper towels used in total

6+13+20=39

now

to clean 4.5 square ft, we need 39 towels. how many we need to clean a single square foot?

4.5 sq ft ___________39 towels

1 sq ft_____________A

and A= 1 sq ft * 39 towels / 4.5 sq ft

and that gives us 8.6 towels, so we need 9 towels to clan a square foot with the brand A

now we repeat this with bran b and c

brand B:

0.75+1.75+2=4.5 sq ft

9+22+25= 56 towels

4.5 sq ft________56 towels

1 sq ft__________B

B= 1 sq ft * 56 towels / 4.5 sq ft = 12.4

so we need 13 towels of brand B

at last

brand C:

1+1.75+2.5=5.25 sq ft

17+29+41= 87 towels

5.25 sq ft________87 towels

1 sq ft__________C

C= 1 sq ft * 87 towels / 5.25 sq ft = 16.57 towels

Therefore, we need 17 towels of brand C to clean a single sq ft

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Answer:

Step-by-step explanation:

If the ratio of orange goldfish to yellow goldfish is 3:5, then we can write:orange goldfish : yellow goldfish = 3 : 5We know that Ben has 6f orange goldfish. We can use this information to set up a proportion and solve for the number of yellow goldfish in terms of f:3/5 = 6f/yellow goldfishTo solve for yellow goldfish, we can cross-multiply:3 * yellow goldfish = 5 * 6fSimplifying:yellow goldfish = 30f/3 = 10fTherefore, Ben has 10f yellow goldfish in terms of f, given that he has 6f orange goldfish and the ratio of orange to yellow goldfish is 3:5.

Maria can estimate the total tuition for all 4 years to be $122400

How to determine the tuition fee?

Tuition payments, usually known as tuition in American English and as tuition fees in Commonwealth English, are fees charged by education institutions for instruction or other services.

The given parameters are

Period of school = a 4-year college

Tuition fee per semester = The tuition is $15,300 per semester.

Number of semester = 2=4 = 8 semesters

Total cost = $15,300 per semester. * 8 = $122400

Therefore the cost of the tuition for 4 years is $122400

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The total amount Maria can estimate for the cost of a 4-year college program at the University of Bayou is $122,400

A college program consists of courses that are taken as part of an accredited course, which leads to the award of a degree.

The tuition per semester for the University of Bayou = $15,300

The number of semester in an academic year = Usually 2 semesters

The number of years Maria intends to spend in college = 4 years

The estimate of the total tuition, found using the basic arithmetic operations is therefore;

Tuition for a 4 year program = 15,300 × 2 × 4 = 122400

The total tuition Maria can estimate for 4 year of college is $122,400

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The percent decrease in the price of this bottled water is 20%

Percentage can simply defined as the ratio of a number or a variable and 100.

Percentage is represented with the symbol, %.

From the information given, we have that;

Original amount for 16-ounce bottle = $1.25

New amount for 16-ounce bottle = $1. 00

The formula for calculating the percent decrease is represented as;

Percent decrease = original value - new value/original value × 100/1

Substitute the values, we have;

Percent decrease = 1.25 - 1.00/1.25 × 100

Subtract the values

Percent decrease = 20%

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Answer:

Step-by-step explanation:

For step explanation:

1. write the problem

2. distinguishing the neg sign

3. distributing 3

4. moving like terms next to each other through commutative property

5.  Combining like terms

6. getting rid of parentheses

Answer:

To simplify 9 1/8 - 2 1/4, we need to first convert the mixed numbers to improper fractions.

9 1/8 = (8 x 9 + 1)/8 = 73/8

2 1/4 = (4 x 2 + 1)/4 = 9/4

Now we can subtract the two fractions:

73/8 - 9/4

Since the two fractions have different denominators, we need to find a common denominator. The least common multiple of 8 and 4 is 8, so we can convert the second fraction to have a denominator of 8:

73/8 - (9/4)x(2/2) = 73/8 - 18/8 = 55/8

Therefore, 9 1/8 - 2 1/4 = 55/8, which is an improper fraction. If we want to convert it back to a mixed number, we can divide the numerator by the denominator:

55/8 = 6 7/8

So the simplified answer is 6 7/8. Answer: 6 7/8.

Answer:

6 7/8

Step-by-step explanation:

9 1/8 - 2 1/4 =

      9 1/8

  -   2 1/4

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

The common denominator for the fractions is 8.

      9 1/8

  -   2 2/8

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

Since the bottom fraction is greater than ther upper fraction, we borrow 1 from the nine. 1 is the same as 8/8, so we take 1 from 9 and add 8/8 to 1/8.

      8 9/8

  -   2 2/8

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

      6 7/8

Answer: 6 7/8

Answer:

56 cm

Step-by-step explanation:

have a good day God bless :)

1.) The average monthly income for Brianna would be = $1,850

2.) The average monthly expenses for Brianna would be =$3,145

3.) The total monthly cash flow = =$ −1,295

The monthly pay check after tax = $1600

The annual scholarship stipend = $3000

That is 3000/12 = $250

Therefore, the average monthly income = 1600+250 = $1,850.

The average monthly expenses = 700+120+75+140+25+110+100+300+250+(12000+1000+1500+800+600/12)

= 1820 + 15900/12

= 1820 + 1325

= $3,145

The monthly cash flow = 1850-3145 =$ −1,295

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The volume of the cube shown can be found to be 132. 65 inch ³ .

To ascertain the volume of a cube , knowledge of one edge's length is mandatory . This side would correspond to all other sides; therefore , multiplying it by three inversely gauges its complete space as a cubic structure.

The formula for the volume of a cube is:

= Side x Side x Side

The side is 5. 1 inch so the volume is:

= 5. 1 x 5 .1  x 5. 1

= 132. 65 inch ³

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The correct terms in the expression are,

⇒ 3x and 5x

We have to given that;

The quadratic equation is,

⇒ 15x² + x - 2 = (? - 1) (? + 2)

Now, We can simplify as;

⇒ 15x² + x - 2

⇒ 15x² + 6x - 5x - 2

⇒ 3x (5x + 2) - 1 (5x + 2)

⇒ (3x - 1) (5x + 2)

Thus, The correct terms in the expression are,

⇒ 3x and 5x

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The equation for the rectangle is adding the interior angles:

x + x - 5 + 71 + y + 21 = 360°

Solving that for y, we will get:

2x + y + 87 = 360

Remember that the sum of the interior angles of any figure with 4 sides must be 360°.

Then we can write an equation:

x + x - 5 + 71 + y + 21 = 360°

2x + y + 87 = 360

Solving it for y:

y = 273 - 2x

Now there is a clear problem in the diagram because the angle in the bottom left is clearly larger than 90°, but it says that the angle measures 71°, so there we have a problem.

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0.333 is the probability of choosing a boy.

The probability of boys being selected can be calculated as the ratio of the number of boys to the total number of children:

Probability of selecting a boy = Number of boys / Total number of children

Probability of selecting a boy = 4 / 12 = 1/3

Therefore, the probability of selecting a boy is 1/3 or approximately 0.333.

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Ali's strategy is essentially the same as Mary's strategy. Both strategies estimate the HST as 15% of the price. However, Mary's strategy involves taking half of 10% of the price.

Mary suggests estimating the HST in Ontario as finding 10% of the price, taking half of this answer and adding the two. Ali proposes finding 10% of the price, then 5% of the price and adding the two answers.

Their strategies differ in the way they approach finding the estimate, but both methods can be used to arrive at the same result.

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The HST in Ontario is 13%, which can be estimated using 15%. Mary tells Ali that it can be estimated as: find 10% of the price, take a half of this answer and add the two. Ali tells Mary that he thinks they should find 10% of the price, then 5% of the price and add the two answers. Compare their strategies.

Answer:

-91

Step-by-step explanation:

To find the partial sum for the sequence

[tex]\large \boxed{\mathrm{ \ 0, \ -1, \ -3, \ -6, \ -10,}}[/tex]

We first notice that the first term is

[tex]\large \boxed{\mathrm{0}}[/tex],

And each subsequent term is the sum of the previous term and the next integer in the sequence starting with [tex]-1.[/tex] Therefore, we can use the formula for the sum of an arithmetic series to find the partial sum S14:

S14 = 14/2 * (2(0) + (14-1)(-1+0)/2) = 14/2 * (13/2 * -1) = -91

Therefore, the partial sum for the sequence up to the [tex]14th[/tex] term is [tex]-91.[/tex]

Answer:

[tex]91[/tex]

Step-by-step explanation:

The partial sum of a sequence is the sum of a certain number of terms in the sequence. For the given sequence

{0, −1, −3, −6, −10, ...},

The nth term can be represented as Tn = n(n-1)/2. This means that the partial sum of the first 14 terms of the sequence, denoted by S14, can be calculated by adding up the first 14 terms using the formula: S14 = 0 + (-1) + (-3) + (-6) + (-10) + ... + T14.

Simplifying this expression using the formula for Tn, We get S14 = 91. Therefore, the partial sum for the given sequence up to the 14th term is equal to 91.

7(x-2) - 2(x-3)

= 7x - 14 - 2x + 6   // Distribute the coefficients

= 5x - 8  // Combine like terms and simplify

Therefore, 7(x-2) - 2(x-3) simplifies to 5x - 8.

Answer:

7(x-2) - 2(x-3) simplifies to 5x - 8.

Step-by-step explanation:

To expand and simplify 7(x-2) - 2(x-3), we can use the distributive property and simplify the resulting expression.

7(x-2) - 2(x-3) = 7x - 14 - 2x + 6

Combining like terms, we get:

= (7x - 2x) + (-14 + 6)

= 5x - 8

Therefore, 7(x-2) - 2(x-3) simplifies to 5x - 8.

I got you, buddy!

Let x be the length of the shortest side. Then, the length of the second side is 2x, and the length of the third side is x + y, where y is the additional length.

The perimeter of the triangle is the sum of the three sides, so we have:

x + 2x + (x + y) = 60

Simplifying this equation, we get:

4x + y = 60

We also know that the area of a triangle is given by:

A = (1/2)bh

where b is the length of the base, and h is the height. Since the base of the flower bed is the shortest side of length x, we can choose the height to be y. Therefore, we have:

A = (1/2)xy

Now we need to solve for x and y. We can use the equation for the perimeter to solve for y:

y = 60 - 4x

Substituting this into the equation for the area, we have:

A = (1/2)x(60 - 4x)

Simplifying and expanding, we get:

A = 30x - 2x^2

To maximize the area, we can take the derivative of A with respect to x and set it equal to 0:

dA/dx = 30 - 4x = 0

Solving for x, we get:

x = 7.5

Substituting this back into the equation for y, we get:

y = 60 - 4x = 45

Therefore, the dimensions of the flower bed are:

shortest side = x = 7.5 feet second side = 2x = 15 feet third side = x + y = 52.5 feet

The functions g(x) = -√x - 3 and h(x) = x + 4 meet the requirements, and f(x) = g(h(x)) is true for f(x) = -√(x+4) - 3.

We are given f(x) and we need to find functions g(x) and h(x) such that f(x) = g(h(x)). The given function is f(x) = -√(x+4) - 3.

To find g(x) and h(x), we can split the given function into two simpler functions. Let's first look at the inner function, which deals with the input of the square root. We can define h(x) as the function inside the square root, which is:

h(x) = x + 4

Now we need to find g(x) such that when h(x) is plugged into it, we get the original function f(x). Since we have the square root and a subtraction, we can define g(x) as:

g(x) = -√x - 3

Now let's verify if f(x) = g(h(x)):

g(h(x)) = g(x + 4) = -√(x + 4) - 3

As you can see, g(h(x)) = f(x), which confirms that the functions g(x) and h(x) we found satisfy the condition.

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Answer:

Cadence is flipping her coin 32 times

Step-by-step explanation:

So the fraction is 1/32 which means 32 is the number of times the coin was flipped.

Multiplicative inverse of given expression is 9/5.

The given expression,

-4/9 + (2/5 + 3/5)

Simplify it,

⇒ -4/9 + (2+3)/5

⇒ -4/9 + 5/5

⇒ -4/9 + 1

⇒ (-4 + 9)/9

⇒ 5/9

So its multiplicative inverse =  1/(5/9) = 9/5

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Answer: A.

Step-by-step explanation: we just need to distribute and see that the only plausible answer is a because when distributed it equals 3x=6

The probability that a person has the virus given that they have tested positive find the P(A/B)=0.0045

We can use Bayes' theorem to find the probability that a person has the virus given that they have tested positive:

P(A | B) = P(B | A) * P(A) / P(B)

where P(B | A) is the probability of testing positive given that the person has the virus, P(A) is the prior probability of a person having the virus (1/300), and P(B) is the total probability of testing positive.

To find P(B), we can use the law of total probability, which states that:

P(B) = P(B | A) * P(A) + P(B | not A) * P(not A)

where P(B | not A) is the probability of testing positive given that the person does not have the virus. This is the false positive rate, which is 5% or 0.05 in this case. P(not A) is the complement of P(A), which is 299/300.

Substituting the values, we get:

P(B) = 0.85 * 1/300 + 0.05 * 299/300

= 0.059

Now we can plug in the values into Bayes' theorem:

P(A | B) = 0.85 * 1/300 / 0.059

= 0.0045 or 0.45%

Therefore, the probability that a person has the virus given that they have tested positive is 0.45% or 0.0045 (rounded to the nearest tenth of a percent).

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A square of a binomial is a polynomial expression that results from multiplying a binomial by itself. The result is a trinomial expression with three terms.

The solution of the given equation 5X/3 + X/3 = 2 (2/3) + 8X/3 is, X = - 4.

The equation is a mathematical statement involving mathematical variable, numerical values, mathematical operation with a equal sign.

The given equation is,

(5/3)*X + (1/3)*X = 2 (2/3) + (8/3)*X

Solving the equation we get,

5X/3 + X/3 = (2*3 + 2)/3 + 8X/3

5X/3 + X/3 - 8X/3 = (6 + 2)/3

(5X + X - 8X)/3 = 8/3

- 2X/3 = 8/3

- 2X = 8

X = 8/(-2)

X = - 4

Hence the solution is, X = - 4.

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11/18

Step-by-step explanation:

sorry if i got it wrong

The option that is a representation that shows y as a function of x is the graph in option 2. The answer is B.

A function is any relation or table of values which may be represented in a graph that has only one possible y value that is assigned to each x-value.

The first option is not a function because x-value 0 has two corresponding y-values, 4 and 9.

In the third option, we also have two y-values, 5 and -5, that is assigned to one x-value, 0. So, it is not a function.

The graph in option 2 represents y as a function of x, because no two y-values is assigned to the same x-value.

The answer is: B.

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Based on the given context, 3s represent (d) three times Sydney’s age

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

Sydney's age = s

Luke is 5 years younger than 3 times Sydney’s age

The interpretation of the second statement above is

Luke's age = Sydney's age - 5

Mathematically, this can be expressed as

l = s - 5

Where

Luke's age = l and

Sydney's age = s

Also from the question we have:

3s = 3 times Sydney's age

Hence, 3s represent (d) three times Sydney’s age

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Answer:

The correct number line that shows the solutions to x+8 > 15 is option B.

Step-by-step explanation:

The correct number line that shows the solutions to x+8 > 15 is option B.

On this number line, you can see that the values of x that make the inequality true are greater than 7. Therefore, the solution set for this inequality is x > 7.