0.4+x(10%)=4.9 solve for x.

Answer:

d = 3

Step-by-step explanation:

Isolate the variable, d. Note the equal sign, what you do to one side, you do to the other. Subtract 8 and 3d from both sides:

5d (-3d) + 8 (-8) = 14 (-8) + 3d (-3d)

5d - 3d = 14 - 8

2d = 6

Divide 2 from both sides:

(2d)/2 = (6)/2

d = 6/2

d = 3

d = 3 is your answer.

~

ANSWER:d=3 im thinking.

EXPLANATION

Answer:

No solutions

Step-by-step explanation:

-3(6 - 2x) + 23 = 4 - 1/3(-18x - 2)

~Distribute both sides

-18 + 6x + 23 = 4 + 6x + 2

~Combine like terms

5 + 6x = 6 + 6x

~Subtract 5 to both sides

6x = 6x + 1

~Subtract 6x to both sides

0 = 1

Best of Luck!

Answer:

42 degrees & 138 degrees.

Step-by-step explanation:

By definition, "SUPPLEMENTARY ANGLES ADD UP TO 180 DEGREES."

That being said you can solve for the missing angle (or really just subtract 138 from 180).

180-138 = 42

Answer: D

Step-by-step explanation: The maximum population size that an ecosystem can support is called carrying capacity. Limiting factors determine carrying capacity. The availability of abiotic factors (such as water, oxygen, and space) and biotic factors (such as food) dictates how many organisms can live in an ecosystem.

A

the length of each pipe

If the expression be 23 x² + 3x + 8 then the constant exists 8.

The addition, subtraction, multiplication, and division arithmetic operators are used to write a group of numbers together to form a numerical statement in mathematics. The expression of a number can take on various forms, including verbal form and numerical form.

A mathematical expression is a finite combination of symbols that is well-formed in accordance with context-specific norms.

A mathematical expression is a phrase that includes at least two numbers or variables, at least one arithmetic operation, and the expression itself. Any one of the following mathematical operations can be used. A sentence has the following structure: Number/variable, Math Operator, Number/Variable is an expression.

During the course of a program's execution, a constant's value cannot change. As a result, the value is constant, as implied by its name. During the course of a program's execution, a variable's value can change. As a result, the value might change, as implied by its name.

Let the expression be 23 x² + 3x + 8

then the constant exists 8.

Therefore, the correct answer is option C. 8.

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Answer:

X is about 2.404

Step-by-step explanation:

4(2x-3)=0.2(x+5)+5.75

8x-12=0.2x+1+5.75

8x-12=0.2x+6.75

   +12.        +12

8x=0.2x+18.75

-0.2x. 0.2x

7.8x=18.75

/7.8.  7.8

x=2.404 (this is rounded)

Hopes this helps please mark brainliest

Answer: I simplified the best I could with my current knowledge, I hope this helps...

Step-by-step explanation:

4(2x + -3) = 0.2(x + 5) + 5.75

8x + (-12) = 0.2x + 1 + 5.75

8x + (-12) = 0.2x + 6.75

All you need to do is move the Xs to the same side and simplify!

56/120

Step-by-step explanation:

The body masses of the two children in terms of their father's body mass, x, are:

First child's body mass = 5x/6 kg

Second child's body mass = 4x/5 kg

To express the body mass of the man's two children in terms of their father's body mass, we can use the given ratios.

Let the body mass of the man be x kg.

The first child's body mass is five-sixths of their father's body mass:

Body mass of the first child = (5/6) * x

= 5x/6 kg.

The second child's body mass is four-fifths of their father's body mass:

Body mass of the second child = (4/5) * x

= 4x/5 kg.

Therefore, the body masses of the two children in terms of their father's body mass, x, are:

First child's body mass = 5x/6 kg

Second child's body mass = 4x/5 kg

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Each exterior angle of a regular 25-gon = 360/25 = 14.4 deg. and each interior angle= 165.6 deg.

No, the line x=1-2t, y=2+5t, z=-3t is not parallel to the plane 2x+y-z=8 as their dot product is not zero.

To determine if the line x = 1 - 2t, y = 2 + 5t, z = -3t is parallel to the plane 2x + y - z = 8, we can find the direction vector of the line and check if it is orthogonal to the normal vector of the plane.

The direction vector of the line is given by the coefficients of t in each component, which is (-2, 5, -3).

The normal vector of the plane is given by the coefficients of x, y, and z in the plane's equation, which is (2, 1, -1).

To check if the direction vector is orthogonal to the normal vector, we can take their dot product and see if it is zero:

(-2, 5, -3) * (2, 1, -1) = -4 + 5 + 3 = 4

Since the dot product is not zero, the direction vector of the line and the normal vector of the plane are not orthogonal, which means the line is not parallel to the plane.

The line x = 1 - 2t, y = 2 + 5t, and z = -3t is not parallel to the plane 2x + y - z = 8, hence the answer is no.

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The probability that more boys than girls are chosen is 0.4731. So option b is correct.

Combination:

The act of combining or the state of being combined. A number of things combined: a combination of ideas. something formed by combining: A chord is a combination of notes. an alliance of persons or parties: a combination in restraint of trade.

Here it is given that there are 18 boys and 19 girls and 5 students are chosen.

We have to find the probability that more boys than girls are chosen.

Probability = \(C^{5} _{18}\) + \(C^{4}_{18} C^{1} _{19}\) + \(C^{3} _{18} C^{2} _{19}\) / \(C^{5}x_{37}\)

                  = 8568 + 58140 + 139536 / 435897

                  ≈ 0.4731

Therefore the probability is 0.4731.

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R script that performs the tasks you mentioned:

```R

# Task (a)

x <- 3

y <- 4

# Task (b)

ln_result <- log(x + y)

# Task (c)

log_result <- log10(x * y²)

# Task (d)

sqrt_result <- 2 * sqrt(3) * x + sqrt(4) * y

# Task (e)

exp_result <-\(10^{x - y\) + exp(x * y)

# Printing the results

cat("ln(x + y) =", ln_result, "\n")

cat("log10(\(xy^2\)) =", log_result, "\n")

cat("2√3x + √4y =", sqrt_result, "\n")

cat("\(10^{x - y\) + exp(xy) =", exp_result, "\n")

```

When you run this script, it will assign the values 3 to `x` and 4 to `y`. Then it will calculate the results for each task and print them to the console.

Note that I've used the `log()` function for natural logarithm, `log10()` for base 10 logarithm, and `sqrt()` for square root. The caret `^` operator is used for exponentiation.

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We will use a total of 100 poker chips to simulate the null hypothesis model. We need to find how many of the 100 poker chips should be blue. As per the null hypothesis model  50 of the 100 poker chips should be blue and 50 should be yellow.

Null Hypothesis Model: A null hypothesis model is a statistical hypothesis that there is no significant difference between the observed and expected results. In other words, it is a statement that suggests there is no difference between two sets of data or no correlation between two variables. It is used in hypothesis testing to compare the results of an experiment to the expected results.

In this case, the null hypothesis model assumes that there is no difference between the number of cars that take damage and the number of cars that do not take damage. Hence, we can assume that the number of blue poker chips and yellow poker chips should be equal, that is, 50 each. Therefore, 50 of the 100 poker chips should be blue and 50 should be yellow.

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Answer: 10.15

Step-by-step explanation:

3  3

1.45

x     7

-----------

10  .  1 5

Please mark brainliest if correct

Answer:

C

Step-by-step explanation:

Y= MX (The Slope which is Rise/Run) minus 2 (The Y-Intercept).

The illegal radio station from monitoring stations A and B is 33.49 miles and 27.03 miles respectively.      

As the graph triangle shows

∠CAB = 90° - 48° = 42°

∠CBA = 90° - 34° = 56°

So ∠ACB = 180° - ∠CAB - ∠CBA

               = 180° - 42° - 56°

               = 82°

AC/ sin ∠CBA = BC/ sin ∠CAB = AB/ sin ∠ACB

         AC = AB sin  ∠CBA / sin ∠ACB

              = 40 × sin 56°/ sin 82°

               = 33.49 miles

A mile is defined as the unit of length, which is exactly equal to 5280 feet, or 1760 yards, and standardized as exactly 1609.344 meters by the International agreement in 1959.

        BC = AB sin ∠CAB /sin ∠ACB

              = 40 × sin 42°/ sin 82°

              = 27.03 miles  

The illegal radio station from monitoring stations A and B is 33.49 miles and 27.03 miles respectively.

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B) The missing angle at the intersection point of both triangles is; x = 15°

C) The missing angle is gotten as; x = 61°

B) In the second image given, we can see two angles;

Now, we know that sum of angles in a triangle is 180 degrees. Thus, for the interior angles, we have;

90 + 5x - 14 + y = 180

where y is the third interior angle

Now, we know that sum of angles on a straight line is equal to 180 degrees. Thus;

y = 180 - (9x + 16)

Put 180 - (9x + 16) for y into the first equation to get;

90 + 5x - 14 + 180 - (9x + 16) = 180

180 will cancel out to get;

90 + 5x - 14 - (9x + 16) = 0

4x = 90 - 14 - 16

4x = 60

x = 60/4

x = 15°

C) The missing angle of the triangle with side of 12y + 3 is an alternate angle to get;

Missing angle = 63°

Sum of angles in a triangle is 180 degrees. Thus;

56 + 63 + 3rd angle = 180

3rd angle = 180 - (56 + 63)

3rd angle = 61°

Thus, x = 61° because they are opposite angles

Also, the two given sides are equal to each other as shown. Thus;

51 = 12y + 3

12y = 51 - 3

12y = 48

y = 48/12

y = 4

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The two lines intersect at (-3,-5) and thus a common solution.

The solution of a linear equation is defined as the points, in which the lines represent the intersection of two linear equations. In other words, the solution set of the system of linear equations is the set of all possible values to the variables that satisfies the given linear equation.

Given here, the system of linear equations as  Y=4x+7 and 2=x-y

On solving these two equations we get that the two lines intersect at (-3,-5) and thus a common solution.

The two equations are plotted in the attachment below.

Hence, The two lines intersect at (-3,-5) and thus a common solution.

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Answer:

114

Step-by-step explanation:

3.2 x 5 cause of the weekdays and 1.5 x 2 cause of the weekends. so then you have 16 and 3. Then you x's it soo 16x6 weeks and 3x6 weeks which equals 96 and 18 then you add thos together.

Answer:

The leading coefficient is -1. The degree of the polynomial is cubic.

Step-by-step explanation:

The leading coefficient is the number in front of the variable showcasing the biggest exponent. The degree of the polynomial is considered by looking at the biggest exponent, and identifying which one it is. In this case, it's a cubic polynomial.

The x-component of fluid acceleration in terms of x and y is 2.

To find the x-component of fluid acceleration (ax), we need to differentiate the x-component of velocity (u) with respect to time.

However, the given equations provide the expressions for u in terms of x and y, not time. Therefore, we need to differentiate u with respect to x and y instead.

Given: u = 2x + y^2

To find the x-component of fluid acceleration (ax), we differentiate u with respect to x while treating y as a constant:

ax = ∂u/∂x = ∂(2x + y^2)/∂x = 2

The x-component of fluid acceleration, ax, is simply 2.

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The coefficient of variation (CV) is a measure of relative variability and is calculated by dividing the standard deviation by the mean, and then multiplying by 100 to express it as a percentage.

In this case, the mean weight is 340 grams, and the standard deviation is 5.2 grams.

CV = (Standard Deviation / Mean) * 100

CV = (5.2 / 340) * 100

CV ≈ 1.53%

Therefore, the correct answer is option B: 1.53%.

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Answer: 12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

200 * 0.06 = 12

Answer:

0.136

Step-by-step explanation:

If we want to find out how many times larger a number is, they need to have the same amount of exponents to make it easier.

We can move the decimal point in (8 * 10^-1) (which equals 0.8) by 1 to the right, so it's exponent is now 1, same as the (1.088 * 10^1). Now we can divide.

1.088/8 is 0.136, so that is your answer.

The probability of getting a 1 or 5 when rolling a die twice is 11/36.

When rolling a die twice, we can determine the probability of getting a 1 or 5 by considering the possible outcomes. A die has six sides, numbered from 1 to 6. Out of these, there are two favorable outcomes: rolling a 1 or rolling a 5.

Since each roll is independent, we can multiply the probabilities of the individual rolls. The probability of rolling a 1 on each roll is 1/6, and the same applies to rolling a 5. Therefore, the probability of getting a 1 or 5 on both rolls is (1/6) * (1/6) = 1/36.

However, we want to find the probability of getting a 1 or 5 on either roll, so we need to account for the possibility of these events occurring in either order. This means we should consider the probability of rolling a 1 and a 5, as well as the probability of rolling a 5 and a 1.

Each of these outcomes has a probability of 1/36. Adding them together gives us a probability of (1/36) + (1/36) = 2/36 = 1/18. However, we should simplify this fraction to its lowest terms, which is 1/18. Therefore, the probability of getting a 1 or 5 when rolling a die twice is 1/18 or approximately 0.0556.

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Answer:

Step-by-step explanation:

length = 120/8 = 15 feet

perimeter = (15 + 8) x 2 = 46 feet

The area is the product of the length and width then the length of the rectangle is 15 feet.

It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a rectangle, opposite sides are parallel and equal and each angle is 90 degrees. And its diagonals are also equal and intersect at the mid-point.

A rectangle has an area of 120 square feet and a width of 8 feet.

Then the length of the rectangle will be

Area = Length × Width

 120 = 8L

     L = 15

Then the length of the rectangle is 15 feet.

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Answer:

 distance divided by rate = time aka D/R=T

Step-by-step explanation:

this is what i learned at least hope it helps

The equation that represents the distance traveled by the car is equal to d = 50 x t.

To calculate the speed of an object, it is necessary to relate the distance traveled and the time required to travel that distance, so that:

                                                \(V = \frac{d}t}\)

Thus, as we are given the value of a velocity and if we are asked for the expression that represents the distance traveled depending on the time, we have:

                                        \(50 miles/hour = \frac{d}{t}\)

                                             \(d = 50 \times t\)

So, the equation that represents the distance traveled by the car is equal to d = 50 x t.

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The equivalent algebraic expression f⁸ for f² f⁶ is because product of power law states to add the exponents.

In mathematics, an expression that incorporates variables, constants, and algebraic operations is known as an algebraic expression (addition, subtraction, etc.).

Algebraic expression types:

let,

RHS = f² f⁶

RHS = f²⁺⁶

RHS = f⁸ = LHS

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