during the two days after a blizzard, 77% of the snow had melted. If the snow is currently 30 inches deep, how much snow fell during the snow?

The sequence follows a difference of 9.

Answer:

2

Step-by-step explanation:

The projected number of people affected by Alzheimer's Disease at t=20 is 6.7336.

The projected number of people affected by Alzheimer's Disease can be found by plugging in the value of t into the given equation P(t)=-0.0002083(20)^(3)+0.0142(20)^(2)-0.099(20)+4.7.

Plug in the value of t=20 into the equation:
P(20)=-0.0002083(20)^(3)+0.0142(20)^(2)-0.099(20)+4.7

Simplify the equation by solving the exponents and multiplying the coefficients:
P(20)=-0.0002083(8000)+0.0142(400)-1.98+4.7

Simplify the equation further by performing the arithmetic operations:
P(20)=-1.6664+5.68+2.72

Simplify the equation to get the final answer:
P(20)=6.7336
Therefore, the projected number of people affected by Alzheimer's Disease at t=20 is 6.7336.

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The coordinates of the other endpoint, Q, are (3,-8).

The midpoint formula is used to find the coordinates of the midpoint of a line segment. The formula is as follows:
M = ((x1+x2)/2, (y1+y2)/2)

In this case, the midpoint M=(1,-2) and one endpoint P=(-1,4) are given. We can plug these values into the formula to find the coordinates of the other endpoint, Q:
(1,-2) = ((-1+x2)/2, (4+y2)/2)

Solving for x2 and y2, we get:
x2 = 2(1) + 1 = 3
y2 = 2(-2) - 4 = -8

Therefore, the coordinates of the other endpoint, Q, are (3,-8).

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The diameter of the circle is 28 inches.

The formula for the area of a circle is:

[tex]A = \pi r^2[/tex]

Where A is the area and r is the radius.

Any straight line segment that travels through the centre of a circle and has endpoints that are on the circle is said to have a diameter.

To find the diameter of the circle, we first need to find the radius. We can rearrange the formula for the area to solve for the radius:

[tex]r = \sqrt{ (A/\pi )}[/tex]

Plugging in the given values:

[tex]r = \sqrt{(615.44/3.14)} = 14[/tex]

So the radius of the circle is 14 inches. The diameter is twice the radius, so:

d = 2r = 2(14) = 28

Therefore, the diameter of the circle is 28 inches.

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Y = 4114/5114

3 (a) To solve 2557⋅X=457 for X∈Z57 using Euclid's algorithm, take the GCD of 2557 and 457. That is, the GCD is:

GCD(2557, 457) = GCD(2557 - 457, 457)

                  = GCD(2157, 457)

                  = GCD(757, 457)

                  = GCD(357, 457)

                  = GCD(157, 457)

                  = 457


Therefore, the GCD of 2557 and 457 is 457, and thus the solution to the equation is X = 457/2557.

3 (b) To find all solutions to the equation 50114⋅Y=8114 for Y∈Z114, we need to rewrite the equation in terms of ordinary integers, since the inverse of 50114 does not exist. The equation can be rewritten as Y = 8114/50114 = 8114/(5114⋅2114) = 4114/5114. This equation is the same as the one in part (a), with 25 replaced by 5. Thus, the solution to this equation is Y = 4114/5114, which is the same solution found in part (a). Therefore, there is only one solution to this equation, and this solution is Y = 4114/5114.

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According to the information, ball B is the one that reaches the highest height because after 1.5 seconds it has a height of 13m, while ball A has a height of 12m.

To identify the ball that reaches the highest we must solve the function shown. Additionally, to know what is the greatest height we must replace the value of x by 1.5 as shown below:

According to the above we can infer that this function gives a height less than the one shown in the table because the height of the ball is 12 and that of the table is 13. So 12 < 13.

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Domain of function is 0 ≤ x < ∞ , range of function is 0 ≤ y < ∞

A function's domain  is the set of values ​​that can be put into the function. This set is the x-values ​​of a function like f(x). A function's range is the set of values ​​that the function takes on. This set is the value that the function outputs after inserting the x value.

Given,

graph of the function is drawn as a ray,

ray is starting from origin and extends to infinity on first quadrant

domain of the function

0 ≤ x < ∞

interval notation

Domain = [0, ∞)

range of the function

0 ≤ y < ∞

interval notation

Range = [0, ∞)

Hence, Domain and range of the function are 0 ≤ x < ∞ and 0 ≤ y < ∞ respectively.

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product of diagonal elements is 10 x -2 = -20.

To find the value of the determinant of the coefficient matrix, perform row operations to reduce it to an echelon form. First, multiply the first row by -3, the second row by 5, and the third row by 2. This yields the following matrix:

(-9)x + (0)y - 18z = -33

(25)x - 10y + 15z = 85

(4)x - (2)y - 14z = -6

Next, subtract the first row from the second row and the first row from the third row. This yields the following matrix:

(0)x + (10)y - (18)z = 52

(4)x - (2)y - (14)z = -6

Finally, subtract 4 times the second row from the third row. This yields the following matrix:

(0)x + (10)y - (18)z = 52

(0)x - (0)y - (2)z = -24

This matrix is in echelon form. The value of the determinant is simply the product of diagonal elements, which is 10 x -2 = -20.

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The graph of the inequality y ≥ (1/2)x - 1 and x - y > 1 is attached. Shannon's graph is correct.

An equation is an expression that shows the relationship between two or more numbers and variables. Equations can either be linear, quadratic, cubic and so on depending on the degree.

Inequalities are used for the non equal comparison of numbers and variables.

Given the inequalities:

y ≥ (1/2)x - 1     (1)

and

x - y > 1     (2)

The graph of the inequality is attached. Shannon's graph is correct.

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A valid inference is a conclusion that is true about the subject based on the evidence or premises provided.

Mathematically, we can represent a valid inference using logical notation. In the example above, we can use the following notation:

Premise 1: All humans are mortal.

Premise 2: Samantha is a human.

Conclusion: Samantha is mortal.

We can use the logical connective "if-then" to represent a valid inference. In this case, we can say, "If all humans are mortal, and Samantha is a human, then Samantha is mortal." This statement is true based on the premises provided.

To determine the validity of an inference mathematically, we can use rules of logic such as the law of detachment or the law of syllogism. The law of detachment states that if we have a conditional statement, "If p, then q," and we know that p is true, then we can validly infer that q is also true.

The law of syllogism is another rule of logic that helps us determine the validity of an inference. This rule states that if we have two conditional statements, "If p, then q," and "If q, then r," we can infer that "If p, then r" is true.

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Both numbers are divisible by 2, 2 and 7.

What is Greatest Common Factor?

The greatest common factor (GCF) is the largest number that divides two or more numbers evenly. It is also known as the greatest common divisor (GCD) or highest common factor (HCF).

If 28 is the greatest common factor of two numbers, it means that both numbers have 28 as a factor. Thus, both numbers are divisible by 2, 2 and 7.

Additionally, the prime factorization of each number must contain all of the prime factors that are factors of 28, which are 2 and 7. However, there may be other prime factors as well. Without additional information, it is not possible to determine the complete prime factorization of each number.

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Answer:

Step-by-step explanation:

If the surface area of a cube is 160 in2, then which best describes the length of an edge of the cube?

The Correct statement is

ST and KT intersect at 90 degree.

The basic qualities listed below make it simple to identify parallel lines.

Parallel lines are defined as straight lines that are always the same distance apart.

Parallel lines, no matter how far they are extended in either direction, never intersect.

Given:

We have given that ST || JK

First ST and JK have no perpendicular relation.

Now, ST and KT intersect at 90 degree.

Now, ST is not parallel to JT but it is given that ST || JK.

and, KT is act as transversal not JK.

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Answer:

C: x+8= 6

Step-by-step explanation:

So if you were to work each of these out x + 6 = 8 that problem gives us positive 2, when we are looking for a -2 so that answer is ruled out. Then you go to x-6=8 you move the -6 and add it to the 8 and you get x = 14 still not our answer so thats also ruled out. Then x-8=6 is the same thing as the last one but with a -8 instead of a 6 but you get the same answer which is x=14 so not that one either. Then you work on the choice x+8=6 and you subtract 8 from both sides and you end up with a -2. So our final answer is C: X+8=6

The time taken to read 3 books is 8 weeks.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, Christian read 1/4 book every 2/3 week.

Time taken to read 1 complete book is

1 × 2/3 ÷ 1/4

= 2/3 ÷ 1/4

= 2/3 × 4/1 (To divide two fractions, keep the first fraction same and change division to multiplication and inverse the second fraction)

= 8/3

Now, time taken to read 3 complete is

= 8/3 ×3

= 8

Therefore, time taken to read 3 books is 8 weeks.

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The requried measure of the angle x in at the point of intersection of tangent and secant of the circle is 30°.

The circle is the locus of a point whose distance from a fixed point is constant i.e center (h, k). The equation of the circle is given by

(x - h)² + (y - k)² = r²

Where h, k is the coordinate of the center of the circle on a coordinate plane and r is the radius of the circle.

Here,
From the figure the,
From a point, a tangent and a secant are drawn to the circle.
Since an equilateral triangle is formed with the help of a cord intersects the tangent and secant on the circumference of triangle.

Again from the figure, the sum of the angle in the triangle is equal to 180°.
90 - 60 + 180 - 60 + x = 180
30 + 120 + x = 180
x = 30°

Thus, the requried measure of the angle x at the point of intersection of tangent and secant of the circle is 30°.

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The sum of two rational expressions with unlike denominators is 1/(x+1) + 1/(x+2).

To split the given rational expression into a sum of two rational expressions with unlike denominators, we will use the partial fraction decomposition method. Here are the steps:

1. Factor the denominator of the given rational expression: (x^(2)+3x+2) = (x+1)(x+2)
2. Set up the partial fraction decomposition: (2x+3)/(x+1)(x+2) = A/(x+1) + B/(x+2)
3. Multiply both sides of the equation by the common denominator to get rid of the denominators: 2x+3 = A(x+2) + B(x+1)
4. Set up a system of equations by equating the coefficients of the like terms: 2x+3 = (A+B)x + (2A+B)
5. Solve the system of equations to find the values of A and B: A=1, B=1
6. Substitute the values of A and B back into the partial fraction decomposition: (2x+3)/(x+1)(x+2) = 1/(x+1) + 1/(x+2)

Therefore, the sum of two rational expressions with unlike denominators is 1/(x+1) + 1/(x+2).

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p(t) = {

P35.00 if t ≤ 2

P35.00 + P15.00 × (t - 2) if 2 < t ≤ 12

P250.00 if t > 12

} is the required function to represent given information.

Expressions are commonly used in programming to perform calculations, manipulate data, and make decisions based on the results of evaluations.

To represent the parking fee using the function p(t), we need to consider the different rates depending on the number of hours parked. Here are the different cases we need to consider:

If t ≤ 2, the parking fee is P35.00

If 2 < t ≤ 12, the parking fee is P35.00 plus P15.00 for each hour (or fraction of it) after the first two hours. This can be represented by the equation:

p(t) = P35.00 + P15.00 × (t - 2)

If t > 12, the parking fee is a flat rate of P250.00.

We can combine these cases into a single function using a piecewise function. Here is the function p(t):

p(t) = {

P35.00 if t ≤ 2

P35.00 + P15.00 × (t - 2) if 2 < t ≤ 12

P250.00 if t > 12

}

This function represents the parking fee in terms of the number of hours parked (t). To use it, simply substitute the number of hours parked into the function and calculate the resulting fee. For example, if you parked for 4 hours, the fee would be:

p(4) = P35.00 + P15.00 × (4 - 2) = P65.00

Therefore, p(t) = {

P35.00 if t ≤ 2

P35.00 + P15.00 × (t - 2) if 2 < t ≤ 12

P250.00 if t > 12

} is the required function to represent given information.

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Answer:

Step-by-step explanation:

I'm guessing you meant to say Lewis had $30 starting.

Well since we have an inequality already, that saves time on me and I can show you how to solve!

[tex]30+11w\geq 89.99[/tex]

[tex]11w\geq59.99[/tex]

[tex]w\geq 5.4536[/tex]

If Lewis waited 5 weeks, he'd only have 85, so we need to round up to 6 weeks, where he'd have $96. Hope this helps!

The number of toppings where the cost of the pizza is the same at both Pizza Palace and Pizza Ranch is 10. The equation that represents the situation is $5 + $0.20T = $4 + $0.30T

A variable is a quantity that may change within the context of a mathematical problem or experiment.

Let's start by defining the variables we will use in the problem:

Cc: Cost of a pizza at Pizza Palace

Cr: Cost of a pizza at Pizza Ranch

T: Number of toppings

According to the problem, we have:

Cc = $5 + $0.20T

Cr = $4 + $0.30T

We want to find the number of toppings, T, where the cost of the pizza is the same at both Pizza Palace and Pizza Ranch. That is:

Cc = Cr

Substituting the expressions for Cc and Cr, we get:

$5 + $0.20T = $4 + $0.30T

Simplifying and solving for T, we get:

$1 = $0.10T

T = 10

Therefore, the number of toppings where the cost of the pizza is the same at both Pizza Palace and Pizza Ranch is 10.

The equation that represents the situation is $5 + $0.20T = $4 + $0.30T

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Answer:

Step-by-step explanation:

First off, we need to remember that the arc measure is equal to the angle measure inside the circle. That means m(arc) MN is 70 degrees. Knowing this, we can find the measures of the other arcs:

m(arc)NP = 180 - 70 - 30 = 80

m(arc)QR = 70 based on vertical angles principle

m(arc)MR = 80+30 = 110 based on vertical angles and angle sum principles

Now we can list the answers using this:

1. 70

2. 70

3. 180

4. 210

5. 110

6. 110

Hope this helps!

The margin of error of a study showed that 387 out of 900 people eat fast food regularly. We want to construct a 90% confidence interval for the population proportion of people who east fast food is   0.0234.The correct answer is option b. 0.0234.

To find the margin of error for a 90% confidence interval, we can use the formula:

Margin of error = z*√(p*(1-p)/n)

Where z is the z-score for a 90% confidence level, p is the sample proportion, and n is the sample size.

In this case, the z-score for a 90% confidence level is 1.645, the sample proportion is 387/900 = 0.43, and the sample size is 900.

Plugging these values into the formula, we get:

Margin of error = 1.645*√(0.43*(1-0.43)/900)

Margin of error = 0.0234

Therefore, the margin of error for the 90% confidence interval is 0.0234. Answer is b. 0.0234

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The actual distance between City C and City D is 4,224,000 feet.

What is total distance?

Whole distance refers to the actual travel distance between the origin and destination locations of the item.

We can use the given scale to convert the distance between City A and City B to feet:

500 miles = 500 * 5280 feet = 2,640,000 feet

Since 1.6 feet represents this distance on the wall map, we have:

1.6 feet = 2,640,000 feet / x

where x is the actual distance represented by 1.6 feet on the map. Solving for x, we get:

x = 2,640,000 feet / 1.6 feet = 1,650,000 feet per foot

Therefore, the  total distance between City C and City D, which is 2.56 feet on the map, corresponds to:

2.56 feet * 1,650,000 feet per foot = 4,224,000 feet

So the actual distance between City C and City D is 4,224,000 feet.

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Assuming the number of people who listen to the video increases by 45% each day, there would be approximately 24 new people who listen to the video on the 7th day after the initial 8 people.

According to the problem, the number of people listening to the video increases by 45% each day. Therefore, we can use the formula for compound interest to calculate the number of new people who listen to the video on the 7th day.

Let P be the initial number of people who listened to the video, which is 8.

Let r be the daily increase rate, which is 45% or 0.45 as a decimal.

Let n be the number of days, which is 7.

Then, the formula for compound interest is:

A = P(1 + r)^n

where A is the final number of people who listen to the video.

Plugging in the values, we get:

A = 8(1 + 0.45)^7

A ≈ 32

Therefore, the number of new people who listen to the video on the 7th day is approximately 32 - 8 = 24 people.

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The value of perimeter of CAR is  12 + 6√2 + 6√3. (C)

The value of the perimeter of triangle CAR can be found by adding the lengths of all three sides of the triangle.

In this case, the perimeter would be the sum of side CA, side AR, and side CR.

To find the perimeter, we can use the formula P = CA + AR + CR.

If we plug in the given values for each side, we can solve for the perimeter:

P = 6 + 6√2 + 6√3

P = 12 + 6√2 + 6√3

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The correct option is For every 2 white marbles, Hal has 3 black marbles​.

The size, number, or amount of one thing or group as compared to the size, number, or amount of another, is called proportion.

A proportion is a mathematical comparison between two numbers. Often, these numbers can represent a comparison between things or people.

Proportion is an equation that defines that the two given ratios are equivalent to each other.

Proportions are actually equations with equal ratios.

A proportion or proportional situation occurs when two things are related in such a way that the ratios of corresponding parts are equal.

Given that, Hal compared the number of black marbles he had to the number of white marbles he had.

Number of black marble = 9

Number of white marble = 2

The proportion is 9 /2

= 3/2

Hence, the correct option is For every 2 white marbles, Hal has 3 black marbles​.

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The decimal multiplier to increase by 6.1% is 1.061.

What is multiplication ?

Multiplication is a mathematical operation used for finding the result of adding a number to itself a certain number of times. It involves multiplying two or more numbers to find their product. For example, 2 times 3 is equal to 6, written as 2 x 3 = 6. In multiplication, the numbers being multiplied are called factors, and the result is called the product. Multiplication is often denoted by the symbol "x" or a dot ".".

A decimal multiplier is a factor that is used to increase or decrease a number by a certain percentage. It is commonly used in financial calculations such as interest rates, discounts, and taxes.

To find the decimal multiplier to increase by a certain percentage, you can use the following formula:

Decimal multiplier = 1 + (percentage increase/100)

For example, if you want to increase a number by 6.1%, the decimal multiplier would be:

Decimal multiplier = 1 + (6.1/100)

Decimal multiplier = 1.061

This means that to increase a number by 6.1%, you would multiply it by 1.061. For example, if you had a number of 100, to increase it by 6.1%, you would multiply it by 1.061 to get 106.1.

On the other hand, if you wanted to decrease a number by a certain percentage, you would use a decimal multiplier that is less than 1. For example, to decrease a number by 10%, the decimal multiplier would be 0.9, which means you would multiply the number by 0.9 to get the new decreased value.

Therefore, decimal multiplier to increase by 6.1% is 1.061.

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Two pairs of consecutive interior angles are ∠5 and ∠9; ∠6 and ∠7.

The correct option is C,

When the sum of two angles is equal to 90 degrees, they are called complementary angles. For example, 30 degrees and 60 degrees are complementary angles.

The pair of non-adjacent internal angles that are located on the same side of the transversal are referred to as consecutive interior angles. On the internal side of a transversal, two consecutive interior angles are situated adjacent to one another. To recognize them, the characteristics of successive inner angles.

Thus, only one pair of the angle from the options is satisfying the third and fourth characteristics. So, the correct option is C) ∠5 and ∠9; ∠6 and ∠7.

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Answer: ∠ABC = 29.745°

Step-by-step explanation:

I believe this is the answer , you should be golden.

Answer:

no se     y ademas me aparece en ingles :(

Step-by-step explanation: