PLEASSE HELP EQUATION IN PICTURE

Answer:

x=5

Step-by-step explanation:

supplementary angles adds to 180

25x+5+10x=180

35x+5=180

35x=180-5

35x=175

divide

x=5

Answer:

measurement precision

Step-by-step explanation:

The consistency of repeated measurement, often expressed by the number of decimal places, is called a measurement's precision.

Answer:

128 square cm

Step-by-step explanation:

2 x 8 x 8 x = 128 cm

Hope this Helps

Given the spherical coordinates of a point are (r, θ, φ), the conversion to rectangular coordinates (x, y, z) is done using the following equations:x = r sin(φ) cos(θ)y = r sin(φ) sin(θ)z = r cos(φ)where 0 ≤ θ ≤ 2π is the azimuthal angle and 0 ≤ φ ≤ π is the polar angle.In order to convert from spherical to rectangular coordinates,

we first need to identify the values of r, θ, and φ. Once we have these values, we can plug them into the equations above to find the corresponding values of x, y, and z. Let's work through an example:Convert the point with spherical coordinates (2, π/4, π/3) to rectangular coordinates.

Here, we have r = 2, θ = π/4, and φ = π/3. Plugging these values into the equations above, we get:x = 2 sin(π/3) cos(π/4) = sqrt(3)y = 2 sin(π/3) sin(π/4) = sqrt(3)z = 2 cos(π/3) = 1So the rectangular coordinates of the point (2, π/4, π/3) are (√3, √3, 1). Note that we use exact values in our calculation, rather than approximating with decimal values, since the problem asks us to use symbolic notation and fractions where needed.

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Answer:

y = 8 + x or

Keesha.cousin.age = 8 + Keesha.age

Step-by-step explanation:

II. When Keesha.cousin is older than Keesha 8 years

    Give y = 8 + x, when y is Keesha cousin.age, x is Keesha.age

            y = 8 + x

II. Prove by given Keesha is 10 years old.

            y = 8 + 10

            y = 18 or Keesha cousin is 18 years old.

Hope that help :)

The z - test static is, z = (0.38 -p₀) / 0.02, Where p₀ is the specific sample proportion.

To calculate the z-test statistic for this hypothesis test, we need to follow a few steps.

Determine the null and alternative hypotheses.

Let's assume our null hypothesis is H0: p = p₀,

Where p0 is the hypothesized proportion. And our alternative hypothesis is Ha: p ≠ p₀ (two-tailed test).

Calculate the standard error (SE) using the formula:

SE = √((p₀ * (1 - p₀)) / n)

Given that the sample proportion is 0.38 and the sample size is 801,

We can substitute these values into the formula:

SE = √((0.38 * (1 - 0.38)) / 801)

     ≈ 0.02

Calculate the z-test statistic using the formula:

z = (p - p₀) / SE

Substituting the values, we have:

z = (0.38 - p₀) / 0.02

Here the specific value of p₀ is not given.

Hence,

The z - test static is, z = (0.38 -p₀) / 0.02

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Answer:

i)

Step-by-step explanation:

i) As it is a right-angle triangle,

\((x+2)^2+(4x)^2=(2x+7)^2\\x^2+4x+4+16x^2=4x^2+28x+49\\x^2+4x+4+16x^2-4x^2-28x-49=0\\13x^2-24x-45=0\\13x^2-39x+15x-45=0\\13x(x-3) + 15(x-3) =0\\(13x+15)(x-3)=0\)

ii)From the above equation we get, that x=3 is a solution

Hence, Base= 4x=12

Altitude=5

Hence, Area of a triangle = Altitude X Height X 1/2

= 12 X 5 X 1/2

=30 cm^2

Learning math can be a challenging task, but with persistence, hard work, and effective study strategies, it is definitely possible to improve your math skills.

Start with the basics: Make sure you have a good foundation in basic math concepts before moving on to more advanced topics. Practice basic arithmetic, fractions, decimals, and percentages until you feel comfortable with them.

Focus on understanding, not just memorizing: Math is not just about memorizing formulas and equations; it's about understanding how and why they work. Focus on understanding the underlying concepts and principles.

Practice regularly: The more you practice, the better you will get. Try to set aside some time each day to practice math problems. This will help you build your skills and improve your understanding.

Use multiple resources: Don't just rely on one textbook or resource. Use multiple resources such as online tutorials, videos, practice problems, and textbooks to get a well-rounded understanding of the topic.

Seek help when needed: Don't hesitate to ask for help if you are struggling with a particular topic. You can reach out to a teacher, tutor, or online community for help.

Stay motivated: Math can be challenging, but it's important to stay motivated and not give up. Keep a positive attitude, celebrate your successes, and remember that every mistake is an opportunity to learn and grow.

Remember that learning math takes time and effort, so don't get discouraged if you don't see immediate results. With persistence and hard work, you can become proficient in math.

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Answer:

I'm pretty sure its 180 !!

Answer:

0.875

Step-by-step explanation:

The correct option representing the function is f(t) = 30,303(0.85)t based on the deprivation rate.

Firstly calculating the depreciation rate -

30,303 - x%×30,303 = 25,757

x×303.03 = 30,303 - 25,757

Performing subtraction on Right Hand Side of the equation

x×303.03 = 4546

x = 4546/303.03

Performing division

x = 15%

The formula to be used for function is -

P = Po\( {(1+r)}^{t} \), where P is the final value, Po is the original value, r is growth rate and t is time.

P = 30,303 \( {(1 - 0.15)}^{t} \)

Performing subtraction on Right Hand Side of the equation

P = 30,303 \( {(0.85)}^{t} \)

The value of car after t years is 30,303 \( {(0.85)}^{t} \).

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The complete question is-

Jane bought a car for $30,303. The value of the car depreciated at a constant rate per year. The table below shows the value of the car after the first and second years:

Year 1 2

Value (in dollars) 25,757.55 21,893.92

Which function best represents the value of the car after t years?

f(t) = 25,757.55(0.85)t

f(t) = 30,303(0.85)t

f(t) = 30,303 (0.15)t

f(t) = 25,757.55 (0.15)t

A Helmholtz coil is designed to create a relatively uniform magnetic field between the two coils. To find the magnetic field at the midpoint between the coils, we can use the Biot-Savart law, which calculates the magnetic field produced by a current-carrying wire.

Step 1: Define the position of the coils
Let's define the positions of the coils as y1 = -r/2 and y2 = r/2. This places the midpoint between the coils at the origin (0, 0).

Step 2: Use the Biot-Savart law
The Biot-Savart law states that the magnetic field dB produced by a small segment of wire is given by:

dB = (μ₀ * i * dl × r') / (4π * |r'|³)

where μ₀ is the permeability of free space, i is the current in the wire, dl is the length of the wire segment, and r' is the vector from the wire segment to the point where we want to calculate the magnetic field.

Step 3: Calculate the magnetic field for each coil
Integrate the magnetic field dB along the entire circumference of each coil to find the total magnetic field B produced by each coil.

Step 4: Add the magnetic fields from both coils
Since the two coils have the same current and are symmetric about the y-axis, their magnetic fields at the midpoint will add up. Add the magnetic fields from both coils to find the total magnetic field B_total at the midpoint:

B_total = B1 + B2

By following these steps, you can calculate the magnetic field at the midpoint between the two Helmholtz coils along the y-axis.

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Based on the fact that Polygon R is a scaled copy of Polygon Q, the value of x can be found to be 8

The face that Polygon R is a scaled copy of polygon  Q means that you can find the value of x by first finding the scale factor that Polygon Q was reduced by to make Polygon R.

To find the scale factor, take the congruent sides of Polygon Q and R that are given, and divide the larger number by the smaller:

Polygon Q height = 14

Polygon R height = 7

Scale factor:

= 14 / 7

= 2

The value of x is therefore:

= Length of Q / scale factor

= 16 / 2

= 8

The length in Q was divided as Q is the larger polygon.

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The probability associated with obtaining a particular value of z is referred to as its statistical probability or simply its probability. It represents the likelihood of observing a specific value of z in a given statistical distribution.

The probability of a specific value of z can be calculated using various statistical methods, depending on the distribution being considered. In statistics, z represents a standard score or a z-score. It is a measure of how many standard deviations a particular value is away from the mean of a distribution. The probability associated with a specific value of z is determined by the characteristics of the distribution, such as its shape, mean, and standard deviation. Different distributions, such as the normal distribution or the t-distribution, have different methods for calculating probabilities associated with specific values of z.

The probability associated with a particular value of z can be useful in hypothesis testing, confidence interval estimation, or determining the likelihood of an event occurring. By understanding the probability distribution of z-values, statisticians can make informed decisions and draw conclusions based on data analysis.

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Answer:

y = 5

Step-by-step explanation:

y + 6 = -3y + 26

4y + 6 = 26

4y = 20

y = 5

Answer:

Y=5

Step-by-step explanation:

1 Subtract 6 from both sides.

y=−3y+26−6

2 Simplify   -3y+26-6−3y+26−6  to  -3y+20−3y+20.

y=−3y+20

3 Add 3y to both sides.

y+3y=20

4.Simplify y+3y to 4y

4y=20

5 Divide both sides by 4.

y=20/4

Simplify 20/4

y=5

Answer:

Continuing from 58: 174, 175

Step-by-step explanation:

The pattern is multiply by 3, and add 1. 6 x 3 = 18, and 18 + 1 = 19. same pattern works for 19 times 3, and 57 times 1. 57 times 3 is 174, then add the 1 to get 175

Answer:

your answer will be Option B

Step-by-step explanation:

hope it helps

# output: hello1 hello22 hello333print(increasing_blocks(5, "world")) # output: world1 world22 world333 world4444 world55555``` for codehs in case of blocks

To find the answer to 18.4

Increasing Blocks on CodeHS, follow these steps:First, read and understand the problem statement and make sure you have all the information needed.18.4 Increasing Blocks on CodeHS is a problem from CodeHS programming course in which you are asked to program a function that takes in an integer and a string and returns a string. The returned string should have the following block pattern for codehs:

**bbb1bbb22bbb333...bbbnnn** where **bbb** represents the string input and **nnn** represents the increasing number of blocks depending on the input integer.For example, if the input integer is 3 and the string is "hello", the returned string should be "hello1hello22hello333".

Now, you can write your solution to the problem. Here's one way to solve this problem:```pythondef increasing_blocks(n, s): res = ""for i in range(1, n+1): res += (s*i) + str(i)if i != n: res += " "return res```The `increasing_blocks()` function takes in two parameters, an integer `n` and a string `s`. It returns a string `res` that satisfies the block pattern condition as described in the problem statement.The function works by iterating over the range of integers from 1 to `n+1` using a `for` loop.

At each iteration, the function concatenates the input string `s` repeated by the current integer `i` and appends the string representation of the integer `i`. Finally, the function adds a space character between each block except for the last block that doesn't have a space.

You can test the function by calling it with different input values:```pythonprint(increasing_blocks(3, "hello")) # output: hello1 hello22 hello333print(increasing_blocks(5, "world")) # output: world1 world22 world333 world4444 world55555```

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The answer is option A. No, there is a good chance that 12 randomly selected adult male passengers will exceed the elevator capacity.

Probability that it is overloaded if 12 adult male passengers have a mean weight greater than 157 lb is 0.0229.Round to four decimal places as needed.Based on the calculations the elevator does not appear to be safe.The solution for the given problem is as follows:

Given that, the maximum capacity of the elevator is 1884 lb - 12 passengers.

We can write as below:

Maximum capacity per person=1884/12=157lb.

And, weights of males are normally distributed with a mean of 165 lb and a standard deviation of 32 lb.Thus, Z = (157-165) / (32 / √12) = -1.7321Then, P(Z > -1.7321) = 0.9586

Hence, the probability that it is overloaded if 12 adult male passengers have a mean weight greater than 157 lb is:P(Z > -1.7321) = 1 - P(Z < -1.7321) = 1 - 0.0229 = 0.9771 (rounded off to 4 decimal places).This probability is greater than 5% and therefore, the elevator does not appear to be safe.

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For burning less calories from Routine 1 Abdul's inequality has a solution which is expressed as t < (5, ∞).

What is an inequality?

In Algebra, an inequality is a mathematical statement that uses the inequality symbol to illustrate the relationship between two expressions. An inequality symbol has non-equal expressions on both sides. It indicates that the phrase on the left should be bigger or smaller than the expression on the right, or vice versa.

The total number of calories burned in Routine 1 after t minutes of running can be expressed as -

22 + 18.5t

Similarly, the total number of calories burned in Routine 2 after t minutes of running can be expressed as -

50 + 12.9t

To find when Routine 1 burns fewer calories than Routine 2, we need to set up an inequality where the total calories burned in Routine 1 is less than the total calories burned in Routine 2 -

22 + 18.5t < 50 + 12.9t

Simplifying this inequality, we get -

5.6t < 28

Dividing both sides by 5.6, we get -

t < 5

Therefore, for any value of t less than 5 minutes, Routine 1 will burn fewer calories than Routine 2.

In interval notation, we can express this as -

t < (5, ∞)

Therefore, the solution is obtained as t < (5, ∞).

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Answer: 160feet³

Step-by-step explanation:

The following can be gotten from the question:

Length = 8 feet

Width = 10 feet

Height = 2 feet

Since we want to know the amount of sand that is in the sandbox, it simply means that we want to calculate the volume of the sandbox. This will be:

Volume = length × width × height

= 8ft × 10ft × 2ft

= 160feet³

The simplified expression of 1.5g - 10 + 6.5g - 3 is 8g - 13.

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

Summation = addition of two or more numbers or variable

Subtraction = Minus of any two or more numbers with each other called subtraction.

As per the given,

1.5g - 10 + 6.5g - 3

Bring near of likely terms,

1.5g + 6.5g - 10 - 3 = 8g - 13

Hence "The simplified expression of 1.5g - 10 + 6.5g - 3 is 8g - 13".

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Answer:

\(x = 1+\sqrt{2} = 2.4\\or\\x= 1-\sqrt{2} = -0.4\)

Step-by-step explanation:

\(y = x^2-2x+5\\\\6=x^2-2x+5\\\\x^2-2x-1=0\\\\\\\frac{-b+-\sqrt{b^2-4ac} }{2a} = x\\a = 1, b = -2, c = -1\\\\\frac{2+-2\sqrt{2} }{2\\}\\\\x = 1+\sqrt{2} = 2.4\\or\\x= 1-\sqrt{2} = -0.4\)

The value of the x is -0.4 when y = 6 and the graph is drawn on the left.

For variable x : ax² + bx + c = 0, where a≠0 is a standard quadratic equation, which is a second-order polynomial equation in a single variable. It has at least one solution since it is a second-order polynomial equation, which is guaranteed by the algebraic basic theorem.

Given:

The quadratic equation,

y = x² – 2x + 5

To find the value of x:

When y = 6.

So,

x² – 2x + 5 = 6

x² – 2x - 1 = 0

Comparing the quadratic equation with standard quadratic equation,

ax²+ bx +c = 0

We get,

a = 1, b = -2 and c = -1

So,

x = {-b ±√(b²-4ac)}/2a

Substituting the values,

x = (2±√8)/2

x = 1 ± √2

x = 2.41421 and x = −0.414214

And the graph is drawn on the left so x = −0.414214 = -0.4 to one decimal place.

Therefore, the value of the x is -0.4.

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Answer:

Step-by-step explanation:

z = whole root (x^2 + 9)

The image of the point after a reflection over the y-axis is (4, -8)

From the question, we have the following parameters that can be used in our computation:

Point = (-4, -8)

Transformation rule

A reflection over the y-axis

The rule of a reflection over the y-axis is

(x, y) = (-x, y)

Using the above as a guide, we have the following:

Image = (4, -8)

Hence the image of the point after a reflection over the y-axis is (4, -8)

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The stable discrete-time, causal systems are options A. 1 and 2. The stable systems among the given options are 1 (unstable) and 2 (stable), leading to option A. 1 and 2 as the correct answer.

A discrete-time system is stable if its output does not grow unbounded for bounded inputs. One way to determine stability is by examining the poles of the system's transfer function. In this case, we can rewrite the given equations in the form of a transfer function. Let's assume Y(z) and X(z) represent the z-transforms of y[n] and x[n], respectively.

For the first system, the equation y[n+1] - 3y[n] = x[n] can be rearranged as Y(z)(z - 3) = X(z). The transfer function of this system is H(z) = Y(z)/X(z) = 1/(z - 3). The pole of this transfer function is z = 3. Since the pole is outside the unit circle in the z-plane, this system is unstable.

For the second system, the equation y[n+1] - 0.3y[n] = x[n] can be rearranged as Y(z)(z - 0.3) = X(z). The transfer function of this system is H(z) = Y(z)/X(z) = 1/(z - 0.3). The pole of this transfer function is z = 0.3. Since the pole is inside the unit circle in the z-plane, this system is stable.

Therefore, the stable systems among the given options are 1 (unstable) and 2 (stable), leading to option A. 1 and 2 as the correct answer.

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Answer:

m>5

Step-by-step explanation:

Let's solve your inequality step-by-step.

m+4>9

Step 1: Subtract 4 from both sides.

m+4−4>9−4

m>5

Answer:

m > 5

Step-by-step explanation:

m + 4 > 9

m + 4 - 4 > 9 - 4

m > 5

Answer:

4

Step-by-step explanation:

Answer:

36x+4

Step-by-step explanation:

4*1+4*9x