find the value of x. hi, pls help! tysm and I will send thanks! enjoy ur day!!

Answer:

3x+4

Step-by-step explanation:

f(x) = - x+4

Substitute in x=-3x

f(-3x)= - (-3x) + 4 = 3x+4

Answer:

4 3/8+6 5/8=x and x÷1/4=number of gallons

Answer:

4 3/8+6 5/8=x and x÷1/4=number of gallons

Step-by-step explanation:

Answer:

  resort fee is 25

tax rate is 1.05

Step-by-step explanation:

The formula for the circumference of a circle is "c = 2 pi r", where "c" represents the circumference, "pi" represents the mathematical constant pi (approximately equal to 3.14159), and "r" represents the radius of the circle.

This formula relates the distance around a circle to its size, and is useful for calculating various measurements related to circles, such as arc length and sector area. It is important to note that the formula for the circumference of a circle assumes the circle is a perfect, unbroken curve, and thus may not be accurate for circles that are not perfectly round.

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The cost of a rugby ball is $6.57

The cost of a golf ball is $1.75

Let x represent the cost of a rugby ball and y represent the cost of a golf ball

2x + 3y= 18.39.........equation 1

5x + 7y= 45.10.........equation 2

multiply equation 1 by 5 and equation 2 by 2

10x + 15y= 91.95

-

10x + 14y= 90.2

y= 1.75

Substitute 1.75 for y in equation 2

5x + 7(1.75)= 45.10

5x + 12.25= 45.10

5x= 45.10-12.25

5x= 32.85

x= 32.85/5

x= 6.57

Hence the cost of a rugby ball is $6.57 and the cost of a golf ball is $1.75

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Answer:

y = x² + 11x + 24

Step-by-step explanation:

y = (x + 3)(x + 8)

Expand

y = x² + 8x + 3x + 24

Combine like terms

y = x² + 11x + 24

Answer:

Step-by-step explanation:

Answer: 4/5

Step-by-step explanation: It is 8/10, but if you simplify it, it is 4/5.

Answer:

The answer is B.

Step-by-step explanation:

You can solve this problem by plugging in 2 for x in the given equations.

2(2) - 3 = 19 is false

3(2) + 2 = 8 is true

4(2) - 4 = -4 is false

5(2) + 1 = 10 is false

Answer:

y^2+z^2= x^2

Step-by-step explanation:

y^2+z^2= x^2 is the correct answer because the formula to find the hypotenuse (longest side in a triangle) is to add up the value of the squares (y^2+z^2 as an example to find for x^2).

Answer:

(4, 5)

Step-by-step explanation:

Calculate the midpoint using the midpoint formula

midpoint = [( + ), ( + ) ]

with (,  ) = (1, 2) and (,  ) = (7, 8)

midpoint = [(1 + 7), (2 + 8) ]

              = (4, 5)

Answer:

-8p-14

Step-by-step explanation:

The continuity equation is satisfied and the flow is incompressible.

To check if the continuity equation is satisfied, we need to take the partial derivatives of the stream function with respect to x and y and see if they satisfy the continuity equation

Continuity equation: ∂u/∂x + ∂v/∂y = 0

where u and v are the x and y components of the velocity field, respectively.

From the definition of the stream function, we have

u = ∂Ψ/∂y = -2

v = -∂Ψ/∂x = -(-2) = 2

Taking the partial derivatives of u and v with respect to x and y, we have

∂u/∂x = 0, ∂v/∂y = 0

Substituting these values into the continuity equation, we get

∂u/∂x + ∂v/∂y = 0 + 0 = 0

Since the continuity equation is satisfied (resulted in zero), the flow is incompressible.

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The given question is incomplete, the complete question is:

The stream function for a two-dimensional, nonviscous, incompressible flow field is given by Psi = -2(x-y) where the stream function has the units of ft^2/s with x and y in feet. (a) Is the continuity equation satisfied?

Answer:

1) 267.45

2) 18.48

3) 3472

The complete table for circle where π = 22/7 is below;

a. radius= 7 m

diameter = 14 m

Area = 154 m²

b. radius= 3.5 cm

diameter = 7 cm

Area = 38.5 cm²

c. radius= 140 mm

diameter = 280 mm

Area = 61,600 mm²

d. radius= 14 m

diameter = 28 m

Area = 616 m²

e. radius= 1¾ cm

diameter = 3½ cm

Area = 9.625 cm²

f. radius= 2.1 cm

diameter = 3m

Area = 13.86 cm² or 7.07 m²

a. radius= 7 m

diameter = 7m × 2 = 14m

Area = πr²

= 22/7 × 7²

= 154 m²

b. radius= 7cm /2 = 3.5 cm

diameter = 7 cm

Area = πr²

= 22/7 × 3.5²

= 22/7 × 12.25

= 38.5 cm²

c. radius= 140 mm

diameter = 280 mm

Area = πr²

= 22/7 × 140²

= 61,600 mm²

d. radius = 14 m

diameter = 28 m

Area = πr²

= 22/7 × 14²

= 616 m²

e. radius= 1¾ cm

diameter = 3½ cm

Area = πr²

= 22/7 × (1¾)²

= 9.625 cm²

f. radius= 2.1 cm

diameter = 3 m

Area = πr²

= 22/7 × 2.1²

= 13.86 cm²

or

Area = πd²/4

= (22/7 × 3²) / 4

= (22/7 × 9) / 4

= 28.28571428571428 / 4

= 7.07 m²

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Answer: 15.48 m/s

Step-by-step explanation:

The following information can be gotten from the question:

Total distance covered by the car will be:

= 400m + 250m

= 650m

Total time taken = 18.0s + 24.0s = 42s

Average speed = Distance/Time

= 650/42

= 15.48 m/s

Answer:

Scale factor of \(\frac{1}{7}\).

Step-by-step explanation:

scale = \(\frac{scaled length}{actual length}\)

The rectangle has been scaled by a factor of seven implies that its real dimensions has been multiplied by seven. Therefore, to scale the copy back to its original size, its dimension should be multiplied by a scale factor of \(\frac{1}{7}\).

Example:

when the scale is 7;

2 x 7 = 14

3 x 7 = 21

when the scale is \(\frac{1}{7}\);

14 x \(\frac{1}{7}\) = 2

21 x \(\frac{1}{7}\) = 3

Answer:

Step-by-step explanation:

A and B are complementary angles since C is right angle.

The total number of books that were never borrowed in a given year. Option B

A library system is a piece of software made specifically for managing a library's activities and inventory of books, periodicals, magazines, and other materials.

It offers a centralized database that librarians may use to manage the library's collection, keep track of borrowing, and keep an eye on other activities related to the library.

This is the kind of software used to collect the information in the question above.

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#Missing parts;

A library system contains information for each book that was borrowed. Each time a person borrows or returns a book from the library, the following information is recorded in a database.

Name and the unique ID number of the person who was borrowing the book

Author, title, and the unique ID number of the book that was borrowed

Date that the book was borrowed

Date that the book was due to be returned

Date that the book was returned (or 0 if the book has not been returned yet)

Which of the following CANNOT be determined from the information collected by the system?

A

The total number of books borrowed in a given year

B

The total number of books that were never borrowed in a given year

C

The total number of books that were returned past their due date in a given year

D

The total number of people who borrowed at least one book in a given year

When we want to translate the function to the right or left, we add a constant to its argument.

If a is positive the function goes to the left, and if a is negative the function goes to the right.

When we want to translate the function up or down, we add a costant to the function value

If a is positive, the function goes up, and if a is negative the function goes down.

Since we want to translate our function 3 units down, we need to subtract 3 from the original function

Since our original function is

The translated function is

Answer: Option 4 (Hexagon)

Step-by-step explanation:

A equilateral triangle, square and hexagon can be used to form a tessellation.

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The mean of samples 10, 10, 10, 10, 10, and 16 will be 11.

The mean is the straightforward meaning of the normal of a lot of numbers. In measurements, one of the markers of focal propensity is the mean. The normal is alluded to as the number-crunching mean. It's the proportion of the number of genuine perceptions to the absolute number of perceptions.

In a sample of n = 6, five individuals all have scores of x = 10 and the sixth person has a score of x = 16.

Then the data set will be given below.

10, 10, 10, 10, 10, 16

Then the mean of the data set will be

Mean = (10 + 10 + 10 + 10 + 10 + 16) / 6

Mean = 66/6

Mean = 11

Thus, the mean of the sample will be 11.

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a) 58^-8 is the same as 1/58^8. we can also simplify the expression by applying the rule for negative exponents to the entire fraction.

To evaluate this expression, we can use the rule that any number raised to a negative exponent is equal to the reciprocal of the same number raised to the same positive exponent. In other words, x^-n = 1/x^n.

Applying this rule to the expression 1/58^8, we get:

1/58^8 = 1/(58^8) = 58^-8

Therefore, the correct answer is 58^-8.

It is important to note that the exponentiation operator (^) has higher precedence than the division operator (/), so we need to use parentheses to indicate that the exponent should be applied to the entire denominator before the division is performed. In this case, we can also simplify the expression by applying the rule for negative exponents to the entire fraction:

1/58^8 = (1/58)^8 = 58^-8

This simplification shows that the correct answer is still 58^-8.

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Answer:

A.

Step-by-step explanation:

The lines touch along every point so they are on top of each other.

The given system of equations represent two coinciding lines.

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.

A linear equation in two variables represent a straight line.

As system of equations in two variables can be represented as

a₁x + b₊y + c₁ = 0

a₂x + b₂y + c₂ = 0

When there are two such equations having infinite solutions the relation between the coefficients is given as,

a₁/a₂ = b₁/b₂ = c₁/c₂

It implies that there are infinite points common between them which is possible only when these two lines are coinciding.

Hence, the graph of corresponding two lines in the x- y plane represents coinciding lines.

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Answer:

In a Euclidean space of any number of dimensions, a plane is uniquely determined by any of the following: Three non-collinear points (points not on a single line). A line and a point not on that line. Two distinct but intersecting lines.

Step-by-step explanation:

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Answer: Choice D.  \(6.44 \times 10^{-4}\)

========================================================

Work Shown:

We multiply the coefficients 9.2 and 7 to get 64.4, which is the same as 6.44*10^1 in scientific notation. When multiplying exponential expressions with the same base, we add the exponents

This is what the steps could look like

\(\left(9.2 \times 10^{-9}\right)\times\left(7 \times 10^{4}\right)\\\\\left(9.2\times7\right)\times\left(10^{-9} \times 10^{4}\right)\\\\\left(64.4\right)\times\left(10^{-9+4}\right)\\\\\left(6.44\times 10^{1}\right)\times\left(10^{-5}\right)\\\\6.44\times\left(10^{1}\times 10^{-5}\right)\\\\6.44\times\left(10^{1+(-5)}\right)\\\\6.44\times 10^{-4}\\\\\)

The final result is in scientific notation as the coefficient c is restricted such that \(0 \le c < 10\)

No digit with the format 90x0y07 is divisible by 2017

The given parameters are:

Dividend = 90x0y07

Divisor = 2017

The dividend is a 7-digit number, and the divisor is a 4-digit number

So, the quotient must be 3 to 4 digits.

Comparing the first and last digits of 90x0y07 and 2017;

The first and last digits of the quotient must be 4 and 1, respectively

So, we have:

90x0y07 = 2017 * 4a1

Assume a = 9.

So, we have:

90x0y07 = 2017 * 491

90x0y07 = 990347

The above is 6-digit.

So, we make use of a 4-digit quotient

This gives

90x0y07 = 2017 * 4ab1

Next, we make use of trial by error.

After several attempts, we conclude that no digit with the format 90x0y07 is divisible by 2017

The closest attempt is

90x0y07 = 2017 * 4471

90x0y07 = 9018007

Where:

x = 1, y = 0 and the digit between x and y is 8, not 0

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Step-by-step explanation:

Equation of circle with center h,k and radius r

  (x-h)^2  + (y-k)^2  = r^2

for this one this becomes    (center  9,-2  and radius 4 )

  (x-9)^2 + ( y+2)^2 =  16

Answer:

x = -3, 9

Explanation:

First, let us divide both sides of the equation by 10^x; this gives,

subtracting 27 from both sides gives

The left-hand side can be factored as

which gives us two further equations

Hence, the two solutions we get are x = 9 and x = -3.