Yall are so wrong do your math again people

Answer:

3/10 || 7/10

Step-by-step explanation:

Answer:

30%

70%

Plz mark me brainliest

Step-by-step explanation:

The range of x are;

1. x < -30

2. x > 8

3. x > 15

4. x < -2

A relationship between two expressions or values that are not equal to each other is called 'inequality.

1. -130 > 50x +20

-130-20> 50x

-150 > 50x

-150/50 > x

-30 > x

x < -30

2. -8(x-3) < -40

-8x +24< -40

collect like terms

-8x < -64

x > -64/-8

x > 8

3. 2x - 22 > 8

collect like terms

2x > 30

divide both sides by 2

x > 30/2

x > 15

4. -35 < -5(x+9)

-35 < -5x -45

collect like terms

10 < -5x

-2 > x

x < -2

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Answer:

73.5 feet

Step-by-step explanation:

The length of a tree =42 feet

Mr. Ash estimates that this tree is 75% as tall now as it will be when fully grown.

We need to find the length of the tree when it is fully grown. It means we need to find the 75% of 42 and adding 42 to it as follows :

\(T=75\%\times 42+42\\\\=\dfrac{75}{100}\times 42+42\\\\=73.5\ ft\)

So, the tree will be 73.5 feet tall when it is fully grown.

Answer:

2a(3a-4a)

Step-by-step explanation:

both can be devided by a and by 2

Answer:

29013

Step-by-step explanation:

Do PEMDAS.  Multiply 69 and 420 and 1 and 44.  Then you will get 28980+77-44.  Then add and subtract from there.  Answer is 29,013.

Explanation

An absolute value function is a function that contains an algebraic expression within absolute value symbols. Recall that the absolute value of a number is its distance from 0 on the number line

Step 1

solve the inequality

so, in intervals

Step 2

graph the solution

I hope this helps you

- For the student-athlete research question, a chi-square test of independence should be conducted.
- For the shampoo company research question, a chi-square goodness of fit test should be conducted.
- For the pen manufacturer research question, a one-way ANOVA should be conducted.
- For the jam manufacturer research question, a chi-square goodness of fit test should be conducted.
Here are the appropriate hypothesis tests for each research question:

1. For the student-athlete's research question comparing jump rope abilities across different sports, you should use a **Chi-square test of independence**. This test is used to determine whether there is a significant association between two categorical variables (in this case, sport type and jump rope ability).

2. For the shampoo company's research question regarding hair types and product purchases, you should use a **Chi-square goodness of fit test**. This test is used to compare observed frequencies of categorical data (hair type) with expected frequencies (proportional representation in product purchases).

3. For the pen manufacturer's research question about pen colors and writing performance, you should use a **Chi-square goodness of fit test**. This test is used to compare the observed frequencies of categorical data (pen colors) with expected frequencies (equal performance among colors).

4. For the jam manufacturer's research question on jam flavor sales and specific days, you should use a **Chi-square test of independence**. This test is used to determine if there is a significant association between two categorical variables (jam flavor and sales day).

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The number of dark chocolate AJ sold is 75

Simultaneous equations are two or more algebraic equations that share variables e.g. m and d . They are called simultaneous equations because the equations are solved at the same time.

If the number of Milk chocolate candy is m and the number of dark chocolate candy is d, then

m+d= 200 equation 1

3m+4d= 675 equation 2

to eliminate m we multiply both equations by 3

3m+3d= 600 equation 3

3m+ 4d=675 equation 4

subtract equation 3 from 4

d = 675-600

d= 75

Therefore the number of dark chocolate candy AJ sold is 75.

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The number of significant figures is:

c. 3

The crucial or important digits that accurately represent the meaning of a certain number are known as the significant figures of that number. 6.658, for instance, has four significant digits.

To determine the number of significant figures in the result of a sum, we need to consider the least number of significant figures present in the numbers being added.

In the given sum, we have 8.5201 and 1.93.

The number 8.5201 has five significant figures, and the number 1.93 has three significant figures.

When we add these two numbers, the result is 10.4501.

Since 1.93 has three significant figures, the result of the sum should also have three significant figures.

Therefore, the number of significant figures is:

c. 3

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Answer: A=2x²+18x+30

Step-by-step explanation:

To find the area, we multiply the length and the width. We can do that with the picture provided.

A=(5+x)(6+2x)                    [use FOIL method to distribute/multiply]

A=30+10x+6x+2x²             [combine like terms]

A=30+18x+2x²

The smallest positive integer y such that the product xy is a perfect cube is 3.

To find the value of y, we need to factorize x, which is 7 * 24 * 48.

We can then find the prime factorization of xy, which will help us determine the smallest integer y that will make the product a perfect cube.

Since 7, 24, and 48 are already factored, we can express x as:

x = 2⁴ * 3 * 7²

To make xy a perfect cube, we need to ensure that the exponents of all the prime factors are multiples of 3.

Therefore, we need to add a factor of 3 to the exponent of 2 in x to make it a multiple of 3. This gives us:

xy = 2⁷ * 3² * 7²

The smallest integer y that can make this product a perfect cube is 3, because we need to add a factor of 1 to the exponent of 2 in xy to make it a multiple of 3, and the smallest integer that can achieve this is 3.

Thus, the smallest positive integer y such that the product xy is a perfect cube is 3.


The question is: A number x is equal to \($7\cdot24\cdot48$\). What is the smallest positive integer y such that the product xy is a perfect cube

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The purpose of this test is to evaluate the effects of rotational acceleration on the semicircular ducts and dynamic equilibrium. This test is called Rotational Acceleration Test.

The purpose of the rotational acceleration test is to assess how the semicircular ducts and the body's dynamic equilibrium respond to rotational movements. The semicircular ducts are part of the vestibular system, which is responsible for detecting changes in head position and rotational movements.

During the test, the individual is subjected to controlled rotational acceleration, usually in a specially designed chair or device. The rotational acceleration induces a sense of spinning or movement, stimulating the semicircular ducts.

By observing the individual's responses, such as eye movements or changes in body posture, healthcare professionals can gather information about the functioning of the vestibular system and the body's ability to maintain balance.

This test is particularly useful in diagnosing disorders of the vestibular system, such as vestibular dysfunction, vertigo, or balance disorders. It helps healthcare providers determine the extent of the impairment and develop appropriate treatment plans or interventions to improve balance and reduce symptoms.

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It will take approximately 737.33 minutes for the amount of water in the bathtub to reach 2212 gallons.

To find the number of minutes it will take for the amount of water in the bathtub to reach 2212 gallons, we can set up a proportion. Let's denote the number of minutes as t. We know that the rate of drainage is 3 gallons per minute, so the amount of water drained in t minutes is 3t gallons. The initial amount of water in the bathtub is 45 gallons, and we want to find the time it takes for the total amount of water to be 2212 gallons.

Using the proportion:(3t) / 45 = 2212 / 45. Cross-multiplying, we get: 3t = 2212. Dividing both sides by 3, we have: t = 2212 / 3. Calculating this value, we find: t ≈ 737.33. Therefore, it will take approximately 737.33 minutes for the amount of water in the bathtub to reach 2212 gallons.

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Mr. McMahon expected a semi-annual probability of default of 35.7% on the bond.

How to solve?

To solve this problem, we can use the formula for the present value of a bond:

PV = (C/r) ×[1 - 1/(1+r)²n] + F/(1+r)²n

where PV is the present value of the bond, C is the semi-annual coupon payment, r is the semi-annual yield rate, n is the number of semi-annual periods, and F is the face value or redemption value of the bond.

We know that Mr. McMahon paid $880 for a $1000 bond, so the present value of the bond is PV = $880. The redemption value of the bond is F = $1000, and the yield rate that he desired was r = 8% per year, compounded semi-annually. Therefore, the semi-annual yield rate is:

i = 0.08/2 = 0.04

We can use the formula to solve for the number of semi-annual periods:

PV = (C/i) ×[1 - 1/(1+i)²n] + F/(1+i)²n

$880 = ($45/i) ×[1 - 1/(1+0.04)²(220)] + $1000/(1+0.04)²(220)

Solving for i gives:

i = 0.0517 or approximately 5.17%

This is the semi-annual yield rate that Mr. McMahon actually received on the bond. To find the semi-annual probability of default that he expected, we can use the formula for the expected yield rate of a bond:

yield = (1 - probability of default) ×(yield rate on the bond) + (probability of default) ×(recovery rate)

where the recovery rate is the percentage of the face value that would be recovered in the event of default.

Assuming that the recovery rate is zero (meaning that in the event of default, Mr. McMahon would receive nothing), we can solve for the probability of default:

0.08 = (1 - p) ×0.0517 + p ×0

Solving for p gives:

p = 0.357 or approximately 35.7%

Therefore, Mr. McMahon expected a semi-annual probability of default of 35.7% on the bond.

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Answer:

2.1

Step-by-step explanation:

Answer:

There is no possible answer for this unless you're teacher wants you to rearrange the equation.

Step-by-step explanation:

we find that the numerical approximation using Euler's method gives y(2) ≈ 1.865, while the analytical solution gives y(2) = 2.5.

Using the formula y(n+1) = y(n) + Δx * f(x(n), y(n)), where f(x, y) = x² √y, we can calculate the values of y at each step. Here's the step-by-step calculation:

Step 1: For x = 0, y = 1 (initial condition).

Step 2: For x = 0.2, y = 1 + 0.2 * (0.2)² * √1 = 1.008.

Step 3: For x = 0.4, y = 1.008 + 0.2 * (0.4)² * √1.008 = 1.024.

Step 4: For x = 0.6, y = 1.024 + 0.2 * (0.6)² * √1.024 = 1.052.

Step 5: For x = 0.8, y = 1.052 + 0.2 * (0.8)² * √1.052 = 1.094.

Step 6: For x = 1.0, y = 1.094 + 0.2 * (1.0)² * √1.094 = 1.155.

Step 7: For x = 1.2, y = 1.155 + 0.2 * (1.2)² * √1.155 = 1.238.

Step 8: For x = 1.4, y = 1.238 + 0.2 * (1.4)² * √1.238 = 1.346.

Step 9: For x = 1.6, y = 1.346 + 0.2 * (1.6)² * √1.346 = 1.483.

Step 10: For x = 1.8, y = 1.483 + 0.2 * (1.8)² * √1.483 = 1.654.

Step 11: For x = 2.0, y = 1.654 + 0.2 * (2.0)² * √1.654 = 1.865.

Therefore, using Euler's method with a step size of Δx = 0.2, we approximate y(2) to be 1.865.

To obtain the analytical solution to the ODE, we can separate variables and integrate both sides:

∫(1/√y) dy = ∫x² dx

Integrating both sides gives:

2√y = (1/3)x³ + C

Solving for y:

y = (1/4)(x³ + C)²

Using the initial condition y(0) = 1, we can substitute x = 0 and y = 1 to find the value of C:

1 = (1/4)(0³ + C)²

1 = (1/4)C²

4 = C²

C = ±2

Since C can be either 2 or -2, the general solution to the ODE is:

y = (1/4)(x³ + 2)² or y = (1/4)(x³ - 2)²

Now, let's evaluate y(2) using the analytical solution:

y(2) = (1/4)(2³ + 2)² = (1/4)(8 + 2)² = (1/4)(10)² = 2.5

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Answer:

its uh 56

Step-by-step explanation:

Answer: 65

Step-by-step explanation:

since the square root of 8 is 64 and 65 is closest to 64

Answer:

√65

√9= 3

√17= 4,12311

√65= 8,06226

√72 =8,48528

In math, protractors are essential tools for measuring and determining vertical and adjacent angles.

In the study of geometry, angles play a fundamental role, and accurately measuring them is crucial for solving various mathematical problems. When it comes to vertical and adjacent angles, a key tool used by both students and professionals is the protractor. A protractor is a DIY (do-it-yourself) tool that allows for precise angle measurement and identification.

With a protractor, one can easily determine the size of vertical angles, which are formed by intersecting lines or rays that share the same vertex but point in opposite directions. These angles have equal measures. Similarly, adjacent angles are formed when two angles share a common side and a common vertex but do not overlap. By using a protractor, one can measure the individual angles and determine their relationship to each other.

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According to the CPT manual, the appropriate code for the treatment for primary breast cancer, would be 77427.

In medical coding, it is important to assign the correct CPT code to accurately describe the provided medical service. For the described scenario of delivering five MeV of radiation treatment to a single area for primary breast cancer, the appropriate code is 77427. This code specifically represents the radiation treatment delivery for breast cancer.

The CPT manual is a widely used resource that provides a comprehensive list of medical procedures and services, each assigned a specific code. These codes help healthcare providers communicate and document the services rendered to patients, as well as facilitate accurate billing and reimbursement. The codes in the CPT manual are regularly updated to reflect advancements in medical technology and practices.

By referencing the CPT manual, healthcare professionals can ensure that the services they provide are accurately coded, allowing for consistent and standardized communication across the healthcare industry. This helps in maintaining proper documentation, tracking patient care, and facilitating efficient billing processes.

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The CPT manual provides specific codes for radiation treatment delivery, including those for breast cancer. The appropriate code for the given treatment would depend on the specific technique used and can be found in the CPT manual.

In order to code the radiation treatment delivery for primary breast cancer, right female breast, we need to refer to the CPT manual. The CPT manual provides specific codes for different types of radiation treatment delivery. In this case, the treatment involves the delivery of Five MeV of radiation to a single area.

Based on the information provided, the appropriate CPT code for this treatment would be determined by the specific technique used for radiation delivery. The CPT manual provides codes for different techniques, such as external beam radiation therapy (EBRT) and brachytherapy.

Since the question does not specify the technique, we cannot provide a specific CPT code. However, a healthcare professional would consult the CPT manual and select the appropriate code based on the specific details of the treatment.

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The total resistance of the line, denoted Rfils, can be calculated from the efficiency of the transmission line, ηtrsp, and the resistance of the load, Rch, using the following equation: Rfils = (1/ηtrsp - 1)Rch

The efficiency of the transmission line is defined as the ratio of the power delivered to the load to the power supplied by the source. The power delivered to the load is equal to the product of the voltage across the load, ΔVch, and the current flowing through the load, I. The power supplied by the source is equal to the product of the voltage across the source, ΔVs, and the current flowing through the line, I.

The total resistance of the line is equal to the difference between the resistance of the source and the resistance of the load. The resistance of the source is negligible, so the total resistance of the line is approximately equal to the resistance of the load.

The equation for Rfils can be derived by substituting the definitions of the efficiency of the transmission line and the total resistance of the line into the equation for the power delivered to the load.

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Answer:

C

Step-by-step explanation:

\(\frac{3-\sqrt{3} }{3+\sqrt{3} } *\frac{3-\sqrt{3} }{3-\sqrt{3} } \\\\=\frac{(3-\sqrt{3})^{2} }{(3+\sqrt{3} )(3-\sqrt{3} )} \\\\=\frac{9-2*3\sqrt{3}+3 }{9-3}\\\\=\frac{12-6\sqrt{3} }{6} \\\\=2-\sqrt{3}\)

Answer:

Step-by-step explanation:

area of square = 576 m²

side length = √576 = 24 m

:::::

area of square = 1024 ft²

side length = √1024 = 32 ft

perimeter = 4 ×⁻ 32 = 128 ft

:::::

Volume of cube = 2744 in³

Side length = ∛2744 = 14 in

:::::

Volume of cube = 9261 cm³

Side length = ∛9261 = 21 cm

Area of one face = 21 × 21 = 441 cm²

Answer:

13 coffee mugs

Step-by-step explanation:

8.50(13)+2.75(8)

=110.50+2.75(8)

=110.50+22

=132.50

Answer:

5/8

Step-by-step explanation:

I used the slope formula of y2-y1/x2-x1

a). The distance between A and C is derived to be 42° to the nearest degree.

b). The bearing of the point C with respect to A is equal to 72°

Bearing is usually measured in degrees, with 0° indicating the reference direction (usually North), and increasing clockwise to 360°. It refers to the direction or angle between a reference direction and a point or object.

Let ∆ABC be the triangle formed with bearings so that:

angle B = 30° + 90° + 15°

angle B = 135°

AB = 20km

BC = 25km

a). The distance between A and C is calculated using the cosine rule as follows:

AC² = 20² + 25² - 2(20)(25)cos135° {cosine rule}

AC² = 1025 + 707.1068

AC = √1732.1068 {take square root of both sides}

AC = 41.6186 approximately 42°

b). The bearing of the point C with respect to A is the angle from the north of A to the line AC, so;

bearing of the point C with respect to A = 30° + 42° = 72°

Therefore, the distance between A and C is derived to be 42° to the nearest degree and the bearing of the point C with respect to A is equal to 72°

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Answer: 30 Minus 20 OR 30 Minus 14 Minus 6

Step-by-step explanation: add the amounts you spent together to get 20 then subtract it from 30. OR subtract 14 from 30 getting 16 then subtract 6.

Answer:

\(Total = 625x^3 + 125x^2 + 125x\)

Step-by-step explanation:

Given

\(Flowers = 25x^2 + 5x + 5\)

\(Unit\ price = 5x\)

Required

The total price for 5 days

First, calculate the total for a day.

\(1\ day = Unit\ price * Flowers\)

\(1\ day = 5x * (25x^2 + 5x + 5)\)

Open bracket

\(1\ day = 125x^3 + 25x^2 + 25x\)

For 5 days, the total will be.

Total = days * sales of a day

So, we have:

\(Total = 5 * [ 125x^3 + 25x^2 + 25x]\)

\(Total = 625x^3 + 125x^2 + 125x\)