which situation can be represented by the expression -27 4/5+50?​

Answer:A.8

Step-by-step explanation:The distance from the centre to a point on the circle is the radius.

Calculate radius r using the distance formula

r = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 3, - 2) and (x₂, y₂ ) = (5, - 2)

r =

 =

 =  = 8 → A

Data points plotted below the line y=x (also known as the line of best fit) indicate that the observed value is less than the predicted value.

What exactly is a math graph?

A math graph is a visual representation of mathematical data or concepts. It typically uses Cartesian coordinates (x, y) to plot points, lines, and shapes that help to illustrate mathematical relationships. Graphs can be used to represent many types of mathematical information, including functions, equations, data sets, and geometric shapes. They are commonly used in fields such as science, engineering, economics, and statistics to analyze and understand complex information. Graphs are also an important tool for conveying mathematical ideas and results in a clear and understandable way.

This could be due to measurement errors, outliers, or other factors that are not accounted for in the model used to generate the line of best fit. It's important to note that the location of data points relative to the line of best fit can provide insight into the underlying pattern or relationship between the variables being studied, but further investigation is needed to determine the specific cause of the discrepancy.

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Seema left 6/11 of the book for reading over the weekend.

To calculate the part of the book left for reading during the weekend, we need to subtract the part of the book Seema read during the weekday from the total book.

If Seema reads 5/11 of the book during the weekday, then:

This means 6/11 of the book is left for reading during the weekend. It is important to note that the fraction of the book read during the weekday and the fraction left for reading during the weekend add up to the total book. This means that 11/11 of the book will be read by Seema in total.

This question should be written as:

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Answer:

A

Step-by-step explanation:

Since the coefficient of the x² term is negative (we know this because if you look at C, the coefficient of x² is -2, which is negative) we know that the vertex will be the maximum. To find the vertex without having to be rewritten, a quadratic function should be written in vertex form which is y = a(x - c)² + d where (c, d) is the vertex. The answer choice that is written in vertex form is A.

The simplified expression 2-6/-2-4-12/6x-3 is given as follows:

-2 - 2x.

The expression for this problem is defined as follows:

\(2 - \frac{6}{-2} - 4 - \frac{12x}{6} - 3\)

The division operation has a higher precedence over the subtraction operations, hence:

Hence the expression can be written as follows:

2 - (-3) - 4 - 2x - 3 = 2 + 3 - 4 - 2x - 3.

Then combining the like terms, which are the constant, the simplified expression is given as follows:

-2 - 2x.

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Answer: A and B I think

Step-by-step explanation:

Answer:

( 6(x)² + 12(x) - 90 ) ft³

Explanation:

addition problem: 2(x)² + 12(x) + 10 + 4(x)² - 100

total volume of water:

Answer:

a)  \(\sf total \ volume \ of \ pool= (2x^2+12x+10)+(4x^2-100) \ ft^3\)

b)  \(\sf total \ volume \ of \ pool =(6x^2+12x-90) \ ft^3\)

Step-by-step explanation:

Given:

a)  Total volume of water = deep end volume + shallow end volume

\(\implies \sf total= (2x^2+12x+10)+(4x^2-100)\)

b) Simplify:

\(\sf \implies 2x^2+12x+10+4x^2-100\)

Collect like terms:

\(\sf \implies 2x^2+4x^2+12x+10-100\)

Combine like terms:

\(\sf \implies 6x^2+12x-90\)

Answer:

ur screwed but the answer is 110.88

Step-by-step explanation:

:)

Answer:

When x=−4\5 and y=1\3 we get x+y = -7/15

Step-by-step explanation:

We are given :

x=−4\5 and y=1\3

We need to evaluate : x+y

Solving:

\(x+y\\=-\frac{4}{5}+\frac{1}{3}\)

Taking LCM of denominators 5 and 3, we get 15

\(=\frac{-4*3+1*5}{15}\\=\frac{-12+5}{15}\\=\frac{-7}{15}\)

So, when x=−4\5 and y=1\3 we get x+y = -7/15

Answer:

-8 - (-4)

Step-by-step explanation:

9 - 5 = 4

-5 - (-9) = 4

-4 - (-8) = 4

-8 - (-4) = -4

Answer: 192 is the volume of the shape

Step-by-step explanation: multiply the base area which is 6 and 8 equals to 48 and times the height so 48 Times 12 Equals 576. Sorryyy I don't know the surface area . Divide by 3 equals to 192

Answer:

Dimensions:

Length = 13.256m

width = 9.256m

Step-by-step explanation:

Let the length of the sandbox be = l and its width be = w

The length of the sandbox is 4 ft more than the width.

This means that  \(l = 4 + w\) ----- equation 1

For the next step, we will be assuming that the strip of grass is a perfect rectangle. The length of the grass strip will be equals to the length of the sandbox.

Area of the grass =  length X width = \((4 +w) \times 5= 5(4+w)\)------ equation 2

The total area for the sandbox and the grass is 189 square feet.

This means that

\((w \times (4+w)) + 5(4+w)=189\\w^2+4w+20+5w=189\\w^2+9w-169=0\\w=9.256m\)

(Kindly note that the positive value for the width was chosen as length cannot be negative).

Now that we have our width, we can put this into equation 1 to get the length.

\(l=9.256+4=13.256m\)

The length of the line passing through the center is approximately 21.02 inches.

Given that a 66-inch strip of metal is bent into a circular hoop.

We need to find the diameter of the hoop.

To find the length of the line passing through the center of the circular hoop, we need to calculate the diameter of the hoop.

The circumference of a circle is given by the formula C = 2πr, where C is the circumference and r is the radius of the circle.

Since the strip of metal is bent into a circular hoop, the circumference of the hoop is equal to the length of the metal strip.

Therefore, we have:

C = 66 inches

We can rearrange the formula for circumference to solve for the radius:

C = 2πr

66 = 2 x 3.14 x r

66 = 6.28r

Dividing both sides of the equation by 6.28, we find:

r = 10.51 inches

The diameter of the hoop is twice the radius, so the diameter is:

d = 2 x r

d = 2 x 10.51

d = 21.02 inches

Now, we can find the length of the line passing through the center by using the diameter. This line is equal to the diameter of the hoop.

Therefore, the length of the line is:

Length = 21.02 inches

Rounding to the nearest hundredth of an inch, the length of the line passing through the center is approximately 21.02 inches.

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The number of ways people can get off the elevator is 604800 ways.

In this question,

Number of people, n = 7

Number of floors, r = 10

The first person can leave elevator in one of 10 ways. Then second person has to choose from one of remaining 9 floors. Then third person in 8, fourth in 7 ways and so on.

Number of ways people can get off the elevator can be calculated as

⇒ \(nP_r=\frac{n!}{(n-r)!}\)

⇒ \(10P_{7}=\frac{10!}{(10-7)!}\)

⇒ \(10P_{7}=\frac{10!}{(3)!}\)

⇒ \(10P_{7}=\frac{(10)(9)(8)(7)(6)(5)(4)3!}{(3)!}\)

⇒ \(10P_{7}=(10)(9)(8)(7)(6)(5)(4)\)

⇒ 604800 ways.

Hence we can conclude that the number of ways people can get off the elevator is 604800 ways.

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Answer:

Y would just equal 6. It says so. Imagine that line where the line is just at y=-6. And imagine all of the points on that line with 4, 5, and -2/3 as the x.

Step-by-step explanation:

Answer;

J is 6

Step-by-step explanation:

Answer:   j = 486

Step-by-step explanation:

Step-by-step explanation:

cost at store A :

cost(b) = 10b + 75

cost at store B :

cosr(b) = 15b

b = the number of books bought.

to answer the question find for what b both functions deliver the same result :

10b + 75 = 15b

75 = 5b

b = 15

when buying the 15th book both costs are the same.

to keep the costs of store A truly less than the costs of store B the limit is therefore 14 books.

Answer:

2 and 5[89] .........................

The equations representing the number and value of coins are n + q = 12  and 5n + 25q = 2.20 respectively.

A system of linear equations is a group of  equations having same number of variables and degree.

For the n number of variables n number of equations are required.

On the basis of number of solutions a system of equations can be classified as consistent and inconsistent.

The given problem can be solved as follows,

Suppose the number of nickel and quarter coins are n amd q respectively.

Then, the equation for the total number of coins can be written as,

n + q = 12                  (1)

And, the equation for their value is given as,

5n + 25q = 2.20       (2)

Hence, the two equations that can be used to represent the given case are n + q = 12  and 5n + 25q = 2.20 respectively.

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Answer:

Less Than or Equal to

Step-by-step explanation:

In mathematics and computer science, the floor and ceiling functions map a real number to the greatest preceding or the least succeeding integer, respectively. floor(x) : Returns the largest integer that is smaller than or equal to x (i.e : rounds downs the nearest integer).

Answer:

subtraction is the right answer

Answer:

hi seif

i think its subtraction

The temperature approaches the steady-state solution:

\(u(x, y, t) = A_{00}\).

To solve the initial value problem, we begin by assuming a solution of the form u(x, y, t) = X(x)Y(y)T(t). Plugging this into the heat equation, we obtain:

X(x)Y(y)T'(t) = k(X''(x)Y(y) + X(x)Y''(y))T(t)

Dividing both sides by k X(x)Y(y)T(t), we get:

1/T'(t) = (X''(x)/X(x) + Y''(y)/Y(y))/k

Since the left-hand side depends only on t and the right-hand side depends only on x and y, both sides must be equal to a constant, which we denote by \(-\lambda^2\):

\(1/T'(t) = -\lambda^2\)

\(X''(x)/X(x) + Y''(y)/Y(y) = -\lambda^2k\)

Solving for X(x) and Y(y) separately, we obtain:

X(x) = A \(cos(n\pi x/L)\) (n=1,2,3,...)

Y(y) = B cos(\(m\pi y/H\)) (m=1,2,3,...)

Here A and B are constants determined by the initial condition u(x, y, 0) = f(x, y), and n and m are integers.

Substituting these expressions into the previous equation and simplifying, we obtain:

\(T'(t) + \lambda^2kT(t) = 0\)

The solution to this differential equation is:

\(T(t) = C exp(-\lambda^2kt)\)

Here C is a constant determined by the initial condition u(x, y, 0) = f(x, y). Therefore, the general solution to the heat equation is:

\(u(x, y, t) = \sum A_{nm} cos(n\pi x/L)\cos(m\pi y/H)\exp(-\lambda^2knt)\)

where the sum is over all integers n and m, and \(A_{nm}\) are constants determined by the initial condition u(x, y, 0) = f(x, y).

For the boundary conditions (a), we have:

u(0, y, t) = 0

u(L, y, t) = 0

u(x, 0, t) = 0

u(x, H, t) = 0

These are homogeneous Dirichlet boundary conditions, which imply that the Fourier series of u(x, y, t) has only sine and cosine terms, with the coefficients of the sine terms being zero due to the even symmetry of the problem.

Therefore, we have:

\(u(x, y, t) = \sum A_{nm} cos(n\pi x/L)\cos(m\pi y/H)\exp(-\pi ^2knt)\)

where the sum is over all even integers n and m, and \(A_{nm}\) are constants determined by the initial condition u(x, y, 0) = f(x, y).

The constant \(\lambda^2\) is determined by the boundary conditions and is given by:

\(\lambda^2 = (n\pi /L)^2 + (m\pi /H)^2\)

As t approaches infinity, the exponential term \(exp(-\lambda^2knt)\) goes to zero for all values of n and m except n=m=0, which gives λ=0.

Therefore, the temperature approaches the steady-state solution:

\(u(x, y, t) = A_{00}\)

where \(A_{00}\) is the constant determined by the initial condition u(x, y, 0) = f(x, y).

For the boundary conditions (b), we have:

partial differential u/partial differential x (0, y, t) = 0

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Answer:

36 ÷ 1 = 36

36 ÷ 2 = 18

36 ÷ 3 = 12

36 ÷ 4 = 9

36 ÷ 6 = 6

36 ÷ 9 = 4

36 ÷ 12 = 3

36 ÷ 18 = 2

36 ÷ 36 = 1

Step-by-step explanation:

The Postive Factors of 36 are therefore all the numbers we used to divide (divisors) above to get an even number. Here is the list of all Postive Factors of 36 in numerical order:

1, 2, 3, 4, 6, 9, 12, 18, and 36.

Factors of 36 include negative numbers. Therefore, all the Positive Factors of 36 can be converted to negative numbers. The list of Negative Factors of 36 are:

-1, -2, -3, -4, -6, -9, -12, -18, and -36.

How many Factors of 36?

When we counted the Factors of 36 that we listed above, we found that 36 has 9 Positive Factors and 9 Negative Factors. Thus, the total number of Factors of 36 is 18.

Factor Pairs of 36

Factor Pairs of 36 are combinations of two factors that when multiplied together equal 36. Here are all the Positive Factor Pairs of 36

1 × 36 = 36

2 × 18 = 36

3 × 12 = 36

4 × 9 = 36

6 × 6 = 36

9 × 4 = 36

12 × 3 = 36

18 × 2 = 36

36 × 1 = 36

Like we said above, Factors of 36 include negative numbers. Minus times minus equals plus, thus you can convert the Positive Factor Pair list above by simply putting a minus in front of every factor to get all the Negative Factor Pairs of 36:

-1 × -36 = 36

-2 × -18 = 36

-3 × -12 = 36

-4 × -9 = 36

-6 × -6 = 36

-9 × -4 = 36

-12 × -3 = 36

-18 × -2 = 36

-36 × -1 = 36

Factor Calculator

Do you need the factors for a particular number? You can submit a number below to find the factors for that number with detailed explanations like we did with Factors of 36 above.

Answer:  C.2.5 and 3.0

Step-by-step explanation:

   18.9-16.34= 2. 56

   2.56 belong to interval [2.5;3.0]

   since 2.5<2. 56<3.0

so, the right option is C.2.5 and 3.0

The correct statement is : 2.5 and 3.0

A decimal number is a number that consists of a whole number and a fractional part separated by a point. For example – 3.5, 6.79, 78.32, etc.

Given here: The difference between 18.9 and 16.34

To subtract decimals, follow these steps:

1.Write down the two numbers, one under the other, with the decimal points lined up.

2.Add zeros so the numbers have the same length.

3.Then subtract normally, remembering to put the decimal point in the answer.

Now the difference is 18.9-16.34=2.56

Thus the number lies between 2.5 and 3.0

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Answer:

50

Step-by-step explanation:

Answer:

0.38

Step-by-step explanation:

Answer:

Option i) At least 64 of the numbers are greater than or equal to 35 must be true

Since the median is 35, we know that there are 63 numbers greater than 35 and 63 numbers smaller than 35. However, since there is an odd number of total numbers (127), the median itself must be included in one of these groups. Therefore, there are at least 64 numbers that are greater than or equal to 35.

Answer:

the answer is 6

Step-by-step explanation:

there is 8 so you look at x and you see 4 then you look at y and you see 3 so you multiply 4*2=8 because you need eight so then because you multiplied 4*2 you multiply 3*2 and you get 6

Answer:

BE

Step-by-step explanation:

It's the only segment that directly cuts across the center and isn't a chord!

Hope that helps!

As the tangent of an angle is given by the division of the sine of the angle by the cosine of the angle, the expression is simplified to the sine of the angle.

To calculate the tangent of an angle, you need to divide the length of the side opposite to the angle by the length of the side adjacent to the angle. The side opposite is the side that is opposite to the angle, while the side adjacent is the side that is adjacent to the angle.

An equivalent way to describe the calculation of the tangent is that it is the division of the sine of the angle by the cosine of the angle.

Hence the expression in the context of this problem is simplified as follows:

tan(θ)cos(θ) = sin(θ)/cos(θ) x cos(θ) = sin(θ).

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