Helppp I dont get ittt

Answer:B

Step-by-step explanation:

Answer:

\( m = \frac{ \sqrt[3]{243b} }{17} \)

The prοbability that an eighth grader chοsen at randοm will play the drums is: 13/35

A fractiοn represents a part οf a number οr any number οf equal parts. There is a fractiοn, cοntaining numeratοr(upper value) and denοminatοr(lοwer value).

The tοtal number οf eighth-grade students whο play an instrument is:

4 + 13 + 13 + 5 = 35

The number οf eighth-grade students whο play the drums is 13.

Therefοre, the prοbability that an eighth grader chοsen at randοm will play the drums is: 13/35

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Answer:

A. -4

Step-by-step explanation:

For solving for x intercepts analytically. You can set the the y in the equation to 0. So, 2x-3(0)=12, and solving for x will get you -4.

You can also solve graphically by plugging in the equation and looking at where it intercepts the x axis.

The surface area of a square pyramid with a side length of 6cm and a slant height of 7cm is 110cm²

Given side length of the square pyramid (a) = 6cm

Given slant height of the square pyramid (l) = 7cm

The formula for finding the surface area of a square pyramid is = a²+2al

By substituting the given values in the above formula we can obtain the value of the surface area of the square pyramid.

So, Surface Area = a²+2al = (6)² + (2 x (6) x (7))

                    Surface Area = 36 +  84

                    Surface Area = 110cm²

From the above solution, we can conclude that the surface area of the given square pyramid of length 6cm, and slant height 7cm is 110cm².

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a) The probability that a battery lasts more than four hours can be calculated by converting four hours (240 minutes) into a standard score and finding the area under the normal distribution curve to the right of that score.

First, we calculate the z-score using the formula:

z = (x - μ) / σ

where x is the value (240 minutes), μ is the mean (265 minutes), and σ is the standard deviation (50 minutes).

z = (240 - 265) / 50

z = -0.5

Next, we look up the corresponding area under the normal distribution curve for a z-score of -0.5. This can be found using a standard normal distribution table or a calculator. The area to the right of -0.5 is equal to the area to the left of 0.5, which is approximately 0.3085.

Therefore, the probability that a battery lasts more than four hours is 1 - 0.3085 = 0.6915, which rounds to 0.692.

The probability that a battery in a laptop computer lasts more than four hours is approximately 0.692.

b) To find the quartiles of battery life, we need to calculate the values corresponding to the 25th and 75th percentiles of the normal distribution.

The 25th percentile corresponds to a z-score of -0.674. We can use the formula mentioned earlier to calculate the value:

x = μ + (z * σ)

x = 265 + (-0.674 * 50)

x = 231.3

Therefore, the 25th percentile value (Q1) is approximately 231 minutes.

The 75th percentile corresponds to a z-score of 0.674. Again, using the formula:

x = μ + (z * σ)

x = 265 + (0.674 * 50)

x = 298.7

Therefore, the 75th percentile value (Q3) is approximately 299 minutes.

The quartiles of battery life in a laptop computer are 231 minutes (Q1) and 299 minutes (Q3), rounded to the nearest integer.

c) To find the value of battery life in minutes that is exceeded with 95% probability, we need to find the z-score that corresponds to a cumulative probability of 0.95.

Using a standard normal distribution table or a calculator, we find that the z-score corresponding to a cumulative probability of 0.95 is approximately 1.645.

Using the formula mentioned earlier, we can calculate the value:

x = μ + (z * σ)

x = 265 + (1.645 * 50)

x = 344.25

Therefore, the value of battery life in minutes that is exceeded with 95% probability is approximately 344 minutes.

With 95% probability, the battery life in a laptop computer exceeds approximately 344 minutes.

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Answer:

DCB=50 degree (sum of interior angle of quadrilateral)

Answer:

Step-by-step explanation:

p≤15/2

Answer:

Supplementary angles add up to 180°

180=7x-9+4x+3

180=7x+4x-9+3

180=11x-7

180+7=11x

187=11x

11x=187

x=187/11

x=17

Therefore x = 17

The number is -2 when three times the sum of a number and 4, subtracted from 10, is the same as two times the same number, increased by 8.

According to the question,

We have the following information:

Three times the sum of a number and 4, subtracted from 10, is the same as two times the same number, increased by 8.

Now, let's take the number to be x.

So, we have the following expression:

10-3(x+4) = 2x+8

10-3x-12 = 2x+8

-2 = 2x+3x+8

5x+8 = -2

5x = -2-8

5x = -10

x = -10/5

x = -2

Hence, the number is -2 when some of the conditions are given.

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Answer:

Step-by-step explanation:

Solve 3-4 and (1⁄2)-2

3 - 4, 4 is greater than 3, so the result is negative (-1)

3 - 4 = -1

-----------------

1/2 is equal to 0.5, also here 2 is larger and we will have a negative result (-1.5 or -3/2)

1/2 - 2 =

0.5 - 2 = -1.5 or -3/2

When x = 0, y = 2(0) - 2 = -2. So one point is (0, -2). When x = 1, y = 2(1) - 2 = 0. So another point is (1, 0).

To graph the equations 2x - y - 2 = 0, 4x - 3y - 24 = 0, and y + 4 = 0, we need to plot the points that satisfy each equation and connect them to form the lines.

1. Equation: 2x - y - 2 = 0

To plot this equation, we can rewrite it in slope-intercept form:

y = 2x - 2

Now we can choose some x-values and calculate the corresponding y-values to plot the points:

When x = 0, y = 2(0) - 2 = -2. So one point is (0, -2).

When x = 1, y = 2(1) - 2 = 0. So another point is (1, 0).

Plot these points on the graph and draw a line passing through them:

```

    |

    |

0   |     ● (1, 0)

    |

    |     ● (0, -2)

-2 __|_____________

    -2    0    2

```

2. Equation: 4x - 3y - 24 = 0

Again, let's rewrite this equation in slope-intercept form:

y = (4/3)x - 8

Using the same process, we can find points to plot:

When x = 0, y = (4/3)(0) - 8 = -8. So one point is (0, -8).

When x = 3, y = (4/3)(3) - 8 = 0. So another point is (3, 0).

Plot these points and draw the line:

```

    |

    |

0   |             ● (3, 0)

    |

    |                   ● (0, -8)

-8 __|______________________

    -2     0    2    4

```

3. Equation: y + 4 = 0

This equation represents a horizontal line parallel to the x-axis, passing through the point (0, -4).

Plot this point and draw the line:

```

    |

    |

-4   |       ● (0, -4)

    |

    |

    |______________________

    -2     0    2    4

``

So, the graph of the three equations would look like this:

```

    |

    |

0   |             ● (3, 0)                      ● (1, 0)

    |                   |                               |

    |                   |                               |

-4 __|___________________|_______________________________

    -2     0    2    4

```

Note that the lines representing the equations 2x - y - 2 = 0 and 4x - 3y - 24 = 0 intersect at the point (1, 0), which is the solution to the system of equations formed by these two lines. The line y + 4 = 0 represents a horizontal line parallel to the x-axis, located 4 units below the x-axis.

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Answer:

\(7\frac{5}{3}\)

Step-by-step explanation:

\(2\frac{3}{5}\) × \(3\frac{1}{3}\)

First make these two fractions as improper fractions.

\(\frac{13}{5}\) × \(\frac{10}{3}\)

Now multiply the fractions

\(\frac{130}{15}\)

You can divide both sides by 5 to simplify the fraction.

\(\frac{26}{3}\)

Now make it as a mixed number.

\(7\frac{5}{3}\)

Hope this helps you.

Let me know if you have any other questions :-)

Hello there! (:

\(2\frac{3}{5} *3\frac{1}{3}\)

Follow these steps to multiply mixed numbers:

Now, how do we convert a mixed number into an improper fraction?

Here are the steps:

Step 1:

2*5=10

10+3=13

\(\frac{13}{5}\)

Now, we do the same to the second fraction:

\(\frac{10}{3}\)

\(\frac{13}{5} *\frac{10}{3}\)

Step 2. Multiply the numerator times the numerator and the denominator times the denominator:

\(\frac{26}{3}\)

Now, let's convert this fraction into a mixed number:

\(7\frac{5}{3}\)

Hope it helps you!

If you have any queries, feel free to ask me! (:

~A smiley teen who adores helping others

\(MagicalNature\) here to help

Answer: $860 this week.

Step-by-step explanation:

Paul worked 40 hours this week, and makes 21.50 dollars an hour. Gross pay means the amount of money paid before taxes.

So we don't need to calculate any taxes, which means all we need to do is multiply 21.50 by 40 hours, since he makes 21.50 an hour, and he worked 40 hours.

Answer:

Hình tròn lớn và hình tròn nhỏ có cùng tâm O. Tính diện tích hình tròn lớn, biết rằng diện tích hình tròn nhỏ là 12,56m2.

Step-by-step explanation:

Hình tròn lớn và hình tròn nhỏ có cùng tâm O. Tính diện tích hình tròn lớn, biết rằng diện tích hình tròn nhỏ là 12,56m2.

Answer:

Top-left box(Option 1 I guess)

Step-by-step explanation:

We know that a graph of points is a function if there is never two or more points that lie on the same vertical line.

Using this to test the graph, we see that the top-left option has no vertical line that passes through 2 or more points. So, it is a function.

Answer:

number of meters per hour x 4 hours = the height after 4 hours

Step-by-step explanation:

The length of AC in triangle BAC is equal 10.7 units

In trigonometry, the cosine rule says that the square of the length of any side of a given triangle is equal to the sum of the squares of the length of the other sides minus twice the product of the other two sides multiplied by the cosine of angle included between them.

The formula is given as

AC² = AB² + BC² - 2(AB)(BC) cos AC

AC² = 6² + 7² - 2(6)(7)cos110

AC = 10.7

Using cosine rule, the length of AC is 10.7 unit.

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Option(B), Scott's interest in his house is a Fee Simple. This means that he has full ownership and control over the property, including the right to sell, lease, or transfer it to others.

Scott's interest in his house is a Fee Simple. This means that he has full ownership and control over the property, including the right to sell, lease, or transfer it to others. The mortgage that he owes is simply a lien on the property, which gives the lender the right to foreclose if he fails to make payments. However, this does not affect Scott's ownership rights or his ability to use and enjoy the property as he sees fit. In contrast, a secured party would be someone who has a security interest in the property, such as a lender or creditor who holds a lien or mortgage. A license would be a limited right to use the property, while an easement would be a right to use a specific portion of the property for a particular purpose.

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With the possibility of repeating letters and digits, the total number of license plates that can be generated in this format is 8,000,000.

In a state where license plates consist of three letters followed by three digits, with the exclusion of three specific letters and three specific digits, there are a total of 20 letters and 7 digits available for use.

The number of possibilities for each position on the license plate can be calculated by multiplying the number of options for each position. For the letters, since three letters are chosen from a set of 20 (excluding the three specified letters), with repetition allowed, the number of possibilities is 20^3 = 8,000. Similarly, for the digits, since three digits are chosen from a set of 7 (excluding the three specified digits), with repetition allowed, the number of possibilities is 7^3 = 343. To find the total number of license plates, we multiply these two results together: 8,000 * 343 = 2,744,000. Therefore, there are a total of 2,744,000 possible license plates.

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Answer: y= Y/x = ?

Step-by-step explanation: write the equation like said, and use the numbers you get to fill in. So say you traveled 500 miles , and you had 540 miles till empty yku would have 40 miles left , so you traveled 500 miles per gallon of gas :) hope this helps

Answer:

√74

Step-by-step explanation:

49 + 25

if brainly deletes this answer, i swear this community is going down in the dumps

Answer:

\(\sqrt{74}\) = 8.6

Step-by-step explanation:

use distance formula

points are (4,2) and (-3,-3)

d= \(\sqrt{(x_{2}-x_{1) ^{2} + (y_{2} -y_{1} )^{2} }\)

substitute points into formula

For the given problem the p - value is 0.0697.

What is standard deviation?

The standard deviation in statistics is a measurement of how much a group of values can vary or be dispersed. A low standard deviation suggests that values are often close to the set's mean, whereas a large standard deviation suggests that values are dispersed over a wider range.

Given: Dean Halverson recently read that full-time college students study 20 hours each week.

She decides to do a study at her university to see if there is evidence that students study an average of more than 20 hours each week.

A random sample of 35 students were asked to keep a diary of their activities over a period of several weeks.

It was found that the average number of hours that the 35 students studied each week was 21.1 hours.

The sample standard deviation of 4.3 hours.

H0: μ = 20

H0: μ > 20

n = 35

X bar = 21.1

s = 4.3

Test statistics = t = (X bar - μ) / (s / √n)

                            = (21.1 - 20) / (4.3 / √35)

                          t = 1.5134

P value = df = n - 1 = 35 - 1 = 34

P(\(t_3_4\) > 1.5134) = 0.0697

Hence, the p - value is 0.0697.

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Answer:false

Step-by-step explanation:

Answer:

the answer is 108 the last choice D