Select the correct answer from each drop down menu consider this equation complete the statement to make this true the least common denominator is blank the equation will have blank bvalid solutions

Answer:

hahaha vote enhypen on mama thanks

Answer:

Hey im present

Step-by-step explanation:

you have summoned me.

We can estimate the intensity of the sound to be:

I = 6.31 × 10⁻⁴ W/m²

To determine the intensity of a 118 dB sound, we need to use the decibel scale and the reference level intensity given. The formula to convert from decibels (dB) to intensity (I) is as follows:

\(I = I₀ * 10^{L/10}\)

Where the variables are:

In this case, the reference level intensity is given as I₀ = 1.0×10⁻¹² W/m², and the sound level is L = 118 dB.

Substituting the values into the formula, we can calculate the intensity:

I = (1.0×10⁻¹² W/m²) * 10^(118/10)

Simplifying the exponent:

I = (1.0×10⁻¹² W/m²) * 10^(11.8)

Evaluating the expression:

I ≈ 6.31 × 10⁻⁴ W/m²

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Answer:

f(x) = x^2       g(x) = -2/5 x^2

Suppose x = 5      then f(5) = 25  and g(5) = -2/5 (25) = -10

g(x) is less than f(x) and g(x) is below the x-axis if x is positive

Only (D) matches these requirements

Answer:

x = 0

Step-by-step explanation:

Step 1: Write equation

9x - 7 = -7

Step 2: Solve for x

Step 3: Check

Plug in x to verify it's a solution.

9(0) - 7 = -7

0 - 7 = -7

-7 = -7

Answer:

Step-by-step explanation:

If he puts smarty back

because it's an "and" multiply by the 2 possibilities

4/12 *4/12

=1/3 *1/3

=1/9

If does not put smarty back

4/12 *3/11

=1/3*3/11

=3/33

Answer:

an answer

Step-by-step explanation:

At the moment when the radius is 12 inches, the balloon is inflating at a rate of 20 cubic inches per second.

To determine the rate at which the radius is changing, we can use the formula for the volume of a sphere, which is given by \(V = \left(\frac{4}{3}\right)\pi r^3\), where V is the volume and r is the radius.

Taking the derivative of both sides with respect to time t, we get \(\frac{dV}{dt} = 4\pi r^2\left(\frac{dr}{dt}\right)\), where \(\frac{dV}{dt}\) represents the rate of change of volume with respect to time and \(\frac{dr}{dt}\) represents the rate of change of radius with respect to time.

Given that \(\frac{dV}{dt} = 20\) cubic inches per second, we can substitute this value into the equation and solve for \(\frac{dr}{dt}\) when r = 12 inches:

\(20 = 4\pi (12)^2 \left(\frac{dr}{dt}\right)\)

Simplifying the equation:

\(20 = 576\pi \left(\frac{dr}{dt}\right)\)

Dividing both sides by 576π:

\(\left(\frac{dr}{dt}\right) = \frac{20}{576\pi}\)

Therefore, the rate at which the radius is changing when the radius is 12 inches is approximately \(\frac{20}{576\pi}\) inches per second.

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Answer:

This is actually not an identity.

Answer:

b² - 121

Step-by-step explanation:

(b +11)(b - 11)

b² - 11b + 11b - 121

b² - 121

The wages earned by the worker after assembling 300 parts is $90.

The equals sign indicates that two expressions in a formula, also known as an equation, are equal.

Given:

The no of parts assembled by the worker, n = 250,

The wage he gets, r = $75

The wage earned to assemble one part = 75 / 250 = $0.3

So, the wage earned by worker by assembling 300 parts = 0.3 × 300 = $90

Therefore, the wage earned by the worker after assembling 300 parts is $90.

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To determine the z-score(s) that cover the "middle 98%" of the normal curve and represent the 98% confidence level (CL), we can use the properties of the standard normal distribution.

The "middle 98%" refers to the area under the normal curve between the z-scores that enclose the central 98% of the distribution. In a standard normal distribution, the mean is 0 and the standard deviation is 1.

Since the distribution is symmetric, we need to find the z-score(s) that correspond to the area of (1 - 0.98) / 2 = 0.01 on each tail of the distribution. The remaining 0.02 is split equally between the two tails.

To find the z-score(s), we can use a standard normal distribution table or a calculator.

Looking up the value of 0.01 in the z-table, we find that the z-score that corresponds to the lower tail is approximately -2.33. This means that 1% of the area lies to the left of z = -2.33.

To find the z-score for the upper tail, we use the symmetry of the distribution. The z-score that corresponds to the upper tail is the negative of the z-score for the lower tail, so it is approximately 2.33.

Therefore, the z-scores that cover the "middle 98%" of the normal curve and represent the 98% confidence level (CL) are approximately -2.33 and 2.33.

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Answer:

We want to craft:

a/b and c/d

where a, b, c and d can be 2, 3, 4 and 5.

Such that the distance in the number line between these two numbers is maximized.

Then we want one number to be really small, and the other to be really large.

Remember two things:

for numbers like a/b.

if a is smaller than b, then a/b is smaller than 1.

Now, if a is larger than b, then a/b is larger than 1.

And two things,

1/10 = 0.1

10/1 = 10

So when the numerator is larger, the distance displaced in the number line is larger.

Then we want to have:

a number where the numerator is the largest option and the denominator is the smallest option:

a/b = 5/2

And the two remaining options in such way that the numerator is smaller than the denominator:

c/d = 3/4.

The distance between these two numbers is:

D = 5/2 - 3/4 = 10/4 - 3/4 = 7/4.

The subset relation R defined on the power set of a set S is reflexive and transitive, but it is not symmetric. (option b)

Reflexivity:

A relation is reflexive if every element of the set is related to itself. In the case of the subset relation R, we need to determine if every set in P(S) is a subset of itself. Let's consider an arbitrary set A in P(S). Since A is a subset of itself, as every element in A is also in A, we can conclude that the subset relation R is reflexive.

Symmetry:

A relation is symmetric if whenever A is related to B, B is also related to A. In the case of the subset relation R, we need to examine if for any sets A and B in P(S), if A is a subset of B, does it imply that B is a subset of A? However, this is not necessarily true. Consider the example where S = {1, 2}. Let A = {1} and B = {2}. Here, A is a subset of B, but B is not a subset of A. Therefore, the subset relation R is not symmetric.

Transitivity:

A relation is transitive if whenever A is related to B and B is related to C, then A is also related to C. In the case of the subset relation R, we need to verify if for any sets A, B, and C in P(S), if A is a subset of B and B is a subset of C, does it imply that A is a subset of C? Fortunately, this property holds for the subset relation R.

Let's consider sets A, B, and C in P(S). If A is a subset of B and B is a subset of C, then every element in A is also an element of B, and every element in B is also an element of C. Therefore, every element in A is also an element of C, implying that A is a subset of C. Thus, the subset relation R is transitive.

Hence the correct option is (b).

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Answer:

im sry but i have no idea

Step-by-step explanation:

Answer:

I think its 300

Step-by-step explanation

This is from my understanding, so I may be a bit wrong.

1. First observe the amount of triangles that form, you have two main triangles and one isosceles triangle that forms in the middle by how these are joined together.

2. Using this idea we will come up  with the equations of  each triangle that has been formed.

3. We can observe that almost all angles are named with a variable except the one in the middle, being an isosceles we will name the missing variable y.

4. Triangle 1(left side) or T1 equals 180 degrees but what angles form this triangle, these would be p+q+y = 180, T2(right side) = r+s+y = 180

5. After creating these two triangles we notice that we have not taken into account the triangle in the middle, we are given 1 angle of this isosceles. There is a mathematical property which I don't remember the name, but essentially the angle below is the same as the angle above, this being 120 degrees. This will result in T3 = 2y + 120 = 180

6. Solve for y, which gives us y=30, *simple triangle math you know*

7. Finally we fix our equations for p+q+r+s, essentially T1 and T2 will transform into p+q = 180-y and r+s = 180-y, we add them up forming p+q+r+s = 2(180-y)

8. Solve the equation p+q+r+s = 360 - 2y which when adding y becomes p+q+r+s = 360-60 = 300

Notes: when doing these exercises it is important to take into account every triangle, the isosceles triangle is very vital for solving it, as it gives us a way for making an equation that is single handedly dependent on y a constant we can find and use. A good approach for these issues would be writing every piece of information as separate sets and then trying to join them using algebra.

The four corners of a square are 90 degrees.

They are evenly split by the diagonal lines, so each corner is now two 45 degree angles.

The lines form triangles, which have 3 angles that need to equal 180 degrees.

Two of the angles are 45, so 45 + 45 = 90 degrees.

X = 180 -90 = 90 degrees.

Answer:

90 degrees

By 90 * 4 is 360

Step-by-step explanation:

Answer:3y+4

Step-by-step explanation:

The solution of the expression will be 3y+4.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given expression is 3(y - 1) + 7. The solution of the expression is done as below,

E = 3(y - 1) + 7

E = 3y - 3 + 7

E = 3y + 4

Therefore, the solution of the expression will be 3y+4.

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Answer:

Integers

Step-by-step explanation:

Step-by-step explanation:

To find the number that is 175% of 31, we can use the following formula:

175% of X = 31

Mathematically, we can represent 175% as 1.75 (since percentage is a ratio out of 100).

So, the equation becomes:

1.75 * X = 31

To solve for X, we divide both sides of the equation by 1.75:

X = 31 / 1.75

Using a calculator, we can evaluate the right-hand side to find the value of X:

X ≈ 17.714

So, 175% of approximately 17.714 is equal to 31.

Answer:

17.714

Step-by-step explanation:

Step-by-step explanation:

solution:

here,

x/2+4

= 6/2+4 ( x = 6 )

= 3+4

= 7

Answer:

7

Step-by-step explanation:

x/2 + 4

=> 6/2 + 4 (x=6)

=> 3 + 4

=> 7

Answer:

X=-1, y=1

Step-by-step explanation:

- x=2x+3

-3x=3

X=-1

Y=-1*-1=1

The particle crosses the origin at a time of 2.346 seconds.

To find the time at which the particle crosses the origin, we need to determine the value of t when x(t) is equal to zero, since the particle will be at the origin when its position is zero.

Using the given position function x(t) = 5.42 m - 2.31 m/s t, we can set x(t) equal to zero and solve for t:

x(t) = 0

5.42 m - 2.31 m/s t = 0

Subtracting 5.42 m from both sides, we get:

-2.31 m/s t = -5.42 m

Dividing both sides by -2.31 m/s, we get:

t = 5.42 m / 2.31 m/s

t = 2.346 s

Therefore, the particle crosses the origin at a time of 2.346 seconds.

In summary, we find the time at which the particle crosses the origin by setting the position function equal to zero and solving for the corresponding value of t. This method works for any one-dimensional motion along a straight line.

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Answer:

(x + 4)² + (y - 2)² = 64

Step-by-step explanation:

Center = (-4, 2)

Radius = 8

Therefore, using the equation of a circle formula:

(x - a)² + (y - b)² = r²

where (a, b) represents the center point of the circle, and r is the radius

(x + 4)² + (y - 2)² = 8²

(x + 4)² + (y - 2)² = 64

1/2 is the probability that the number will add up to more than 4. Option C is correct

Probability is defined as the likelihood or chance that an event will occur.

Probability = Expected/Total

From the given spinner, the total outcome is expressed according to the permutation

For orange spin

3P2 = 3!
3P2  = 6

For green spin

4P2 = 4!/2!
4P2 = 12

If they are both spinned, the probability that the sum will be more than 4 are:

Expected (orange) = {(2,3)}

Expected (green) = {((1, 3), (3, 4) (2, 4), (2,3)}

Pr(number added is 4) = 1/6 + 4/12

Pr(number added is 4)  = 2+4/12

Pr(number added is 4)  = 1/2

Hence the probability that the number will add up to more than 4 is 1/2

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The two-period moving average model and the two-period weighted moving average model are both common forecasting methods used to predict future demand. and we understand that the model with the lower MAD and MSE values will have the most accurate forecast.

To determine which model is better for this particular data set, we need to compare the accuracy of each model. To do this, we will calculate the Mean Absolute Deviation (MAD) and the Mean Squared Error (MSE) for each model.
For the two-period moving average model, we can calculate the forecast for period 7 by taking the average of p5 and 6:

Period 7 forecast = (Gallons in Period 5 + Gallons in Period 6)/2

For the two-period weighted moving average model, we can calculate the forecast for period 7 by using the weights of 0.6 and 0.4:

Period 7 forecast = (0.6 x Gallons in Period 5) + (0.4 x Gallons in Period 6)

We can then compare the accuracy of each model by calculating the MAD and MSE. To calculate MAD, we need to subtract the actual demand in each period from the forecasted demand and take the absolute value:

MAD = |Actual demand – Forecasted demand|

To calculate MSE, we need to square the differences between the actual demand and the forecasted demand:

MSE = (Actual demand – Forecasted demand)^2

After calculating the MAD and MSE for each model, we can compare the results to determine which model is better for this data set. The model with the lower MAD and MSE values will have the most accurate forecast.

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Answer:

Step-by-step explanation:

Hello!

apply distributive law

\(a(b - c) = ab - ac\)

2(3-8y)=2.3-2.8y

=6-16y

Hope it helps!

Answer:

2

Step-by-step explanation:

\(\large\huge\green{\sf{Answer:-}}\)

➡k x 9≤ 18

➡x≥18/9=2

The graph of the parent absolute value function is decreasing over the interval (-∞, 0). The function exhibits a decreasing behavior as x moves from negative infinity towards zero, where the absolute value decreases.

The parent absolute value function is defined as f(x) = |x|. To determine where the graph of this function is decreasing, we need to identify the intervals where the function's slope is negative.

Let's analyze the behavior of the parent absolute value function:

For x < 0, the function can be rewritten as f(x) = -x. In this interval, the function is a linear function with a negative slope of -1. As x decreases, f(x) also decreases, indicating a decreasing behavior.

For x > 0, the function remains f(x) = x. In this interval, the function is a linear function with a positive slope of 1. As x increases, f(x) also increases, indicating an increasing behavior.

At x = 0, the function is not differentiable since the slope changes abruptly from negative to positive. However, it is worth noting that the function does not strictly decrease or increase at x = 0.

Therefore, we can conclude that the graph of the parent absolute value function is decreasing over the interval (-∞, 0).

In this interval, as x moves from negative infinity towards zero, the function values decrease. The farther away x is from zero (in the negative direction), the larger the absolute value, resulting in a decrease in the function values.

On the other hand, the graph of the parent absolute value function is increasing over the interval (0, ∞), as explained earlier.

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