Helpppp quick I give brainliest

Answer:

491.52

Step-by-step explanation:

1500×.80×.80×.80×.80×.80=491.52

Answer:

4. (a) y=12x²-18x. le + y = 0

(b) y=2ײ-6×-8

○=12x²-18x. 0=2ײ-6×-8

6x(2×-3) =0. 2(ײ -3x -4)=0

6x=0 2x-3=0. 2(x-4) (×+1)=0

x=0. 2x=3. x-4=0 x+1=0

x=3/2. x=4 x=-1

5. y=2 (0)²-7(0)+9

y=9

The correct solution for the given recurrence relation S(k) = 6S(k-1) is:

d. S(k) + 25 and S(0) = -4.

In the given options, option d is the correct solution. Let's explain why.

The given recurrence relation S(k) = 6S(k-1) represents a linear recurrence relation where each term is obtained by multiplying the previous term by 6.

To find a solution for this recurrence relation, we can start by finding the initial condition S(0).

Given that S(k) is a solution for all k € Z, we can substitute k = 0 into the equation to find the initial condition:

S(0) = 6S(0-1) = 6S(-1)

The option d provides an initial condition S(0) = -4, which satisfies the equation. So, S(k) + 25 is a solution for the given recurrence relation.

Therefore, option d is the correct solution for the recurrence relation S(k) = 6S(k-1) with the given initial condition.

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Answer:

187.5% increase

Step-by-step explanation:

Percent change formula: \(\frac{x_{2}-x_{1}}{x_{1}}\)

Initially, the program had 8 members and ended with 15 so \(\frac{15-8}{8}=\frac{7}{8}=0.875=87.5\)

Vertically compressing the exponential parent function f(x) = 2^x by a factor of 3 means multiplying every function value by 1/3, resulting in a steeper and narrower curve closer to the x-axis.

If we vertically compress the exponential parent function f(x) = 2^x by a factor of 3, it means that every point on the graph of the function will be compressed closer to the x-axis. In other words, the function values will be multiplied by 1/3.

Let's consider a point on the original exponential function, (x, f(x)). After the vertical compression, this point will have the coordinates (x, (1/3)f(x)). For example, if f(x) = 8 for some x, after compression, the corresponding point will be (x, (1/3)(8)) = (x, 8/3).

This vertical compression affects all points on the graph uniformly, resulting in a steeper and narrower curve compared to the original exponential function.

The y-values of the compressed function will be one-third of the y-values of the original function for each x-value. Therefore, the graph will be squeezed vertically, with the y-values closer to the x-axis.

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Answer:

x=5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

9+11= 20

4x=20

20/4x= 5

The cross-sectional area will be π*(y^2-x^2) as area of a circle with radius r is π*r^2.

Hence, The cross-sectional area will be π*(y^2-x^2) as area of a circle with radius r is π*r^2.

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Answers: x = 4 and y = 3

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

Explanation:

Triangle UBD is congruent to triangle RAN

Note the order of the lettering as it's important.

BD and AN are the last two letters of UBD and RAN in that order. Therefore, these sides correspond and BD = AN. From that, we know,

BD = AN

2y+5 = 3y+2

5-2 = 3y-2y

3 = 1y

y = 3

-----------

Using similar logic, UD and RN are the first and last letters of UBD and RAN respectively. So,

UD = RN

15 = 2x+7

2x+7 = 15

2x = 15-7

2x = 8

x = 8/2

x = 4

Answer:

2,750

Step-by-step explanation:

Answer:

2,750

Step-by-step explanation:

9% of 25,000= 2,250

2,250+500=2,750

Answer:

Slope-Intercept form: y=3x+7

Standard form: 3x-y=-7

Point-slope form: y-1=3(x+2)

Step-by-step explanation:

Slope-Intercept form:

First, find the slope, using the formula: \(m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

Our x₁ and y₁ will be the point (-2,1) and our x₂ and y₂ wwill be the point (1,10).

So let's write those in our equation to find slope:

\(m=\frac{10-1}{1-(-2)}=\frac{9}{3}=3\)

Therefore, our slope is 3.

Now let's write our linear equation with what we have already in slope-intercept form:

y=3x+b

Well, we still need to find the y-intercept, or "b".

Plug in one of your points for the x and y values of the equation.  We'll use the point (-2,1)

\(y=3x+b\\1=3(-2)+b\\1=-6+b\\1+6=-6+6+b\\7=b\)

This means our y-intercept is 7.  Now we can write our equation in slope-intercept form completely:

y=3x+7

Standard form:

Now, let's find this equation is standard form.

Take your equation in slope-intercept form and write it out again:

\(y=3x+7\)

Now, standard form of a linear equation is ax+by=c, so subtract 3x from both sides:

\(y-3x=3x-3x+7\\-3x+y=7\)

The "a" coefficient in standard form cannot be negative, so divide the entire equation by -1:

\(\frac{-3x+y}{-1}=\frac{7}{-1}\\3x-y=-7\)

Therefore, your equation in standad form is:

3x-y=-7

Point-Slope form:

The formula for point-slope form is y-y₁=m(x-x₁).  We already know that our x₁ and y₁ is the point (-2,1) and we know that our slope, m, is 3, so we just have to plug then in where the fit in the equation.

x₁ is -2 and y₁ is 1 and m is 3, so:

y-1=3(x-(-2)) or y-1=3(x+2)

That means our equation in point-slope form is:

y-1=3(x+2)

Answer:

1x-7.875 *is les than symbol* 0.375

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

So you already know that 34 is 34 stories in length.

Positive means: up, forward

Negative means: down, backward

Since the elevator is going down 34 stories, it is negative.

An elevator ride down 34 stories can be represented as -34 or negative 34.

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

The required  integer is -34.

It is required to find the integer.

An integer is a whole number (not a fractional number) that can be positive, negative, or zero. Zero is not a fraction or decimal of any number. It is neither positive nor negative.

Given:

Positive means: up, forward

Negative means: down, backward

Since the elevator is going down, the situation is represented by a negative integer. Since it goes down 34 stories, then it is represented by the integer −34.

Therefore, the required  integer is -34.

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The expression that shows how much Diego saves in the third month is 2³ which equals 8.

To determine how much Diego saves in the third month, to consider the pattern established in the problem that Diego saves $2 in the first month, and each subsequent month he saves twice as much as the previous month.

Let's break it down:

First month: $2

Second month: Twice as much as the first month = 2 * $2 = $4

Third month: Twice as much as the second month = 2 * $4 = $8

From the pattern that Diego saves $8 in the third month.

To represent this pattern algebraically,  use the following expression:

2 × 2 × 2

This simplifies to:

2³

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Answer:

18.445

Step-by-step explanation:

Multiply

We use import math when we want to use the sin function in the math library, x= math. sin(3.14).

Similar to #include header_file in C/C++, that how to import function in python. The import statement brings in code from one module into another program, where modules are files that contain python code, and modules are used to group related code in a program, instead of rewriting the code again, you can reuse the same code in different files. To import code from a module a parameter is to be followed import module name ( where the import word is the keyword and the module name is the module you want to import  ).

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The answer is 231 inches.

To understand how we arrive at this answer, let's break down the given measurement step by step. We have 6 yards, 3 feet, and 7 inches.

Starting with yards, we know that 1 yard is equal to 3 feet, so 6 yards would be equivalent to 6 * 3 = 18 feet. Adding the 3 feet given, we have a total of 18 + 3 = 21 feet.

Moving on to inches, we know that 1 foot is equal to 12 inches. So, the 21 feet we calculated earlier would be equal to 21 * 12 = 252 inches. Finally, adding the 7 inches given, we get a total of 252 + 7 = 259 inches.

Therefore, 6 yards 3 feet 7 inches is equal to 259 inches.

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1. The slope of each object are: a) 0.6. b) 1.375.

2. The slope of the road section is 0.02.

3. No, a wheelchair ramp with a vertical rise of 1.4 m along a horizontal run of 8 m does not satisfy the regulation.

4. The slope of each line segment are: a) 0.6. b) -0.6.

In Mathematics and Geometry, the slope of any straight line can be determined by using the following mathematical equation;

Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)

Slope (m) = rise/run

By substituting the given data points into the formula for the slope of a line, we have the following;

Part 1

Slope of a = 3/5

Slope of a = 0.6

Slope of b = 4.4/3.2

Slope of b = 1.375

Part 2.

Slope of road section = 2.5/152

Slope of road section = 0.0165 ≈ 0.02.

Part 3.

Slope of wheelchair ramp = 1.4/8

Slope of wheelchair ramp = 0.0175 ≈ 0.02.

Part 4.

a) The rise for graph a is 3 units.

The run for graph a is 5 units.

Slope of graph a = 3/5

Slope of graph a = 0.6

b) The rise for graph b is -3 units.

The run for graph b is 5 units.

Slope of graph b = -3/5

Slope of graph b = -0.6

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Answer:

both linear and nonlinear

Answer:

y = -2x - 3

Step-by-step explanation:

Two lines that are perpendicular to one another share the attribute that the product of their slopes is equal to -1.

Therefore, to find the line perpendicular to FG's slope, we'll find FG's slope and then use the said attribute.

We're given two points: G(9, 8) and F(-5, 1).

\(m = \frac{y_2 - y_1}{x_2 - x_1}\\\\m_{FG} = \frac{y_G - y_F}{x_G - x_F} = \frac{8 - 1}{9 - (-5)} = \frac7{14} = \frac12\)

Using the attribute mentioned above, we know the following:

\(m_{FG} \cdot m_{\perp FG} = -1\\\frac12 \cdot m_{\perp FG} = -1\\m_{\perp FG} = -2\)

We don't know where this line intercepts FG, therefore, we can't find its equation. However, the answers only show one line with a slope of -2, therefore the equation of the line perpendicular to FG is y = -2x - 3.

Answer:

20

Step-by-step explanation:

lets assume the number she thought of was x

\( \frac{x}{5} \)

then she added 7 to it and got 11

\( \frac{x}{5} + 7 = 11\)

l.c.m

\( \frac{x + 35}{5} = 11\)

cross multiply

\(x + 35 = 11 \times 5\)

\(x + 35 = 55 \)

\(x = 55 - 35\)

x = 20

Answer: $29850

Step-by-step explanation:

From the question, we are informed that Kevin earned $28,500 in gross wages last year and had $1,350 in capital gains.

The amount of Kevin's income from last year that is subject to income tax will be the addition of the amount he earned and his capital gains. This will be:

= $28500 + $1350

= $29850

The volume of the medication required, we subtract it from the nebulizer output to find the amount of saline needed.

To determine the amount of saline needed to make the medication last the full hour, we need to calculate the total volume of medication required and subtract it from the volume delivered by the nebulizer.

Given:

- Albuterol dose: 15 mg

- Atrovent dose: 0.5 mg

- Nebulizer output: 10 mL per hour

- Nebulizer flow rate: 4 LPM (liters per minute)

First, we need to convert the nebulizer flow rate to mL per hour:

4 LPM * 60 min = 240 mL per hour

Next, we calculate the total volume of medication required by adding the doses of albuterol and Atrovent:

Total medication volume = 15 mg + 0.5 mg

Now, we need to convert the total medication volume from milligrams to milliliters. To do this, we need to know the concentration of the medication (mg/mL) or the volume of the medication that corresponds to the given dose. Without this information, we cannot convert the dose to volume accurately.

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Answer:

I think this diagram its 110° cause it's measure for ZJKL FOR (G6D)

I

Answer:

y = -12/11

Step-by-step explanation:

-8y - 13 = 14y + 11

-8y - 14y = 11 + 13

-22y = 24

y = 24/-22

y = -12/11

Check:

-8*-12/11  -  13 = 14*-12/11 + 11

96/11  -  13 = -168/11  +  11

96/11 - 143/11 = -168/11 + 121/11 = -47/11

To show that the vectors ⎡⎣⎢121⎤⎦⎥, ⎡⎣⎢131⎤⎦⎥, ⎡⎣⎢141⎤⎦⎥ do not span R3, we need to find a vector that cannot be expressed as a linear combination of these vectors.

One way to do this is to set up a system of equations and see if there is a solution for the coefficients. For example, let's try to express the vector ⎡⎣⎢010⎤⎦⎥ as a linear combination of the given vectors:

a⎡⎣⎢121⎤⎦⎥ + b⎡⎣⎢131⎤⎦⎥ + c⎡⎣⎢141⎤⎦⎥ = ⎡⎣⎢010⎤⎦⎥

This gives us the following system of equations:

a + b + c = 0
2a + 3b + 4c = 1
a + b + c = 0

We can see that the first and third equations are the same, so we only have two independent equations. This means that we cannot solve for all three coefficients, and therefore the vector ⎡⎣⎢010⎤⎦⎥ cannot be expressed as a linear combination of the given vectors.

Therefore, the vectors ⎡⎣⎢121⎤⎦⎥, ⎡⎣⎢131⎤⎦⎥, ⎡⎣⎢141⎤⎦⎥ do not span R3, as there is at least one vector (⎡⎣⎢010⎤⎦⎥) that is not in their span.

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the solution for the initial value problem is: u(x, t) = sin(sqrt(-λ² * (a / 4)) * x) * exp(-λ² * t) where λ = ± sqrt(-4n² / a), and n is a non-zero integer.

The given partial differential equation is:

au(x, t) = 4 * (d²u(x, t) / dt²) / (dx²)

a) BCs (Boundary Conditions):

We have u(0, t) = 0 and u(π, t) = 0.

IC (Initial Condition):

We have u(x, 0) = x.

To solve this initial value problem, we need to find a function f(x) that satisfies the given boundary conditions and initial condition.

The solution for f(x) can be found using the method of separation of variables. Assuming u(x, t) = X(x) * T(t), we can rewrite the equation as:

X(x) * T'(t) = 4 * X''(x) * T(t) / a

Dividing both sides by X(x) * T(t) gives:

T'(t) / T(t) = 4 * X''(x) / (a * X(x))

Since the left side only depends on t and the right side only depends on x, both sides must be equal to a constant value, which we'll call -λ².

T'(t) / T(t) = -λ²

X''(x) / X(x) = -λ² * (a / 4)

Solving the first equation gives T(t) = C1 * exp(-λ² * t), where C1 is a constant.

Solving the second equation gives X(x) = C2 * sin(sqrt(-λ² * (a / 4)) * x) + C3 * cos(sqrt(-λ² * (a / 4)) * x), where C2 and C3 are constants.

Now, applying the boundary conditions:

1) u(0, t) = 0:

Plugging in x = 0 into the solution X(x) gives C3 * cos(0) = 0, which implies C3 = 0.

2) u(π, t) = 0:

Plugging in x = π into the solution X(x) gives C2 * sin(sqrt(-λ² * (a / 4)) * π) = 0. To satisfy this condition, we need the sine term to be zero, which means sqrt(-λ² * (a / 4)) * π = n * π, where n is an integer. Solving for λ, we get λ = ± sqrt(-4n² / a), where n is a non-zero integer.

Now, let's find the expression for u(x, t) using the initial condition:

u(x, 0) = X(x) * T(0) = x

Plugging in t = 0 and X(x) = C2 * sin(sqrt(-λ² * (a / 4)) * x) into the equation above, we get:

C2 * sin(sqrt(-λ² * (a / 4)) * x) * C1 = x

This implies C2 * C1 = 1, so we can choose C1 = 1 and C2 = 1.

Therefore, the solution for the initial value problem is:

u(x, t) = sin(sqrt(-λ² * (a / 4)) * x) * exp(-λ² * t)

where λ = ± sqrt(-4n² / a), and n is a non-zero integer.

Note: Please double-check the provided equation and ensure the values of a and the given boundary conditions are correctly represented in the equation.

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Sample data can be used to form an estimate about the population by calculating the statistic of the sample and using it to approximate the same statistic for the population. This is known as statistical inference.

For example, if a sample of 100 people is taken and the mean height of the sample is 6 feet, then it can be assumed that the mean height of the population is also likely to be around 6 feet.

Sample data can be used to make an estimate about the population by taking a representative sample of the population and calculating a statistic from the sample. This statistic can then be used to approximate the same statistic for the population.

This is known as statistical inference and is a common tool for making informed decisions about a population without having to collect data from each and every individual in the population.

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the expression equivalent to 2x + 8 is (x+4) + (x+4)

using the commutative property we can say that

2x +8 = x + x + 8

also 2x + 8 = x + 4 + x + 4

hence 2x + 8 = (x+4) + (x+4)

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Answer:

it would be 4

12-4×2=12-8=4

Step-by-step explanation:

hope it helps you

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➺ \( \: 12 - {2}^{2} .2\)

➺ \( \: 12 - (2 \times 2 \times 2)\)

➺ \( \: 12 - 8\)

➺ \( \: 4\)

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