who's smart in math here can someone help me pls
ind the values of other five trigonometric ratios of the acute angle given that:

cos A =



1. sin A =

2. tan A =

3. cot A =

4. sec A =

5. csc A =

​

The length of side b of the given right angle triangle using law of sines is; b = 12.044 m

The law of sines states that when we divide side "a" by the sine of angle A, it is equal to side "b" divided by the sine of angle B, and also equal to side "c" divided by the sine of angle C

Thus;

a/sin A = b/sin B = c/sinC

The parameters are;

B = 42°

c = 18m

Since c is the hypotenuse, it is the side that will be opposite the right angle and so;

C = 90°

Thus, using sine rule;

c/sinC = b/sin B

18/sin 90 = b/sin 42

b = (18 * sin 42)/1

b = 12.044 m

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Answer:

n-6

Let n represent the number

Answer:

X - 6

Step-by-step explanation:

X is a number

The zeros with each multiplicity are given as follows:

The factor theorem is used to define the functions, which states that the function is defined as a product of it's linear factors, if x = a is a root, then x - a is a linear factor of the function.

Considering the linear factors of the function in this problem, the zeros are given as follows:

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From the data given, we do not have enough evidence to conclude that the hypothesized average production cost of P24.6 million is false.

To test the hypothesis that the average production cost in making a movie is P24.6 million, we can perform a hypothesis test using the sample data.

Let's define the null hypothesis (H₀) and the alternative hypothesis (H₁) as follows:

H₀: The average production cost is P24.6 million.

H₁: The average production cost is not P24.6 million.

We will use a t-test since we have a sample size smaller than 30 and the population standard deviation is unknown.

Given the sample information, the sample mean (x) is P28.3 million, the sample size (n) is 15, the hypothesized population mean (μ) is P24.6 million, and the sample standard deviation (s) is P9.5 million.

We can calculate the t-statistic using the formula:

t = (x - μ) / (s / √n)

Substituting the values:

t = (28.3 - 24.6) / (9.5 / √15)

t = 3.7 / (9.5 / √15)

t = 1.51

To determine whether the hypothesis is true at a 0.01 level of significance, we need to compare the calculated t-value to the critical t-value from the t-distribution table for a two-tailed test with 14 degrees of freedom (n - 1 = 15 - 1 = 14) and a significance level of 0.01.

The critical t-value for a two-tailed test with 14 degrees of freedom and a significance level of 0.01 is approximately ±2.977.

If the calculated t-value falls within the range of ±2.977, we fail to reject the null hypothesis; otherwise, we reject the null hypothesis.

Since the calculated t-value of 1.51 does not exceed the critical t-value of ±2.977 for a two-tailed test at a 0.01 level of significance, we fail to reject the null hypothesis.

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Answer:

She lost 475 points

Step-by-step explanation:

Given:

Lost point in next level = 75

Number of target = 5

Lost point in each target = 80

Find:

Total changes

Computation:

Total lost points = Lost point in next level + [Number of target][Lost point in each target]

Total lost points = 75 + [5][80]

Total lost points = 75 + 400

Total lost points = 475 point

Yes, Matrix B is invertible.

And, The eigenvalues of B−1 are;

⇒ (5 ± 7.68) / 14 - 1

An Invertible Matrix is a square matrix defined as invertible if the product of the matrix and its inverse is the identity matrix.

Given that;

B be a 2 ×2 matrix such that;

⇒ 7B² −5B + 3I = 0

Now,

Since, B be a 2 ×2 matrix.

And, The expression is,

⇒ 7B² −5B + 3I = 0

⇒ B² −5/7B + 3I/7 = 0

Multiply by B⁻¹, we get;

⇒ B - 5/7 + 3B⁻¹ = 0

Solve for B⁻¹;

⇒ 3B⁻¹ = - B + 5/7

⇒ B⁻¹ = - B/3 + 5/21

Thus, The matrix B is invertible.

And, The eigen value of B are;

⇒ 7B² −5B + 3I = 0

⇒ 7B² −5B + 3I = 0

⇒ B = - (-5) ± √(-5)² - 4×7×3 / 2×7

⇒ B = 5 ± √25 - 84/14

⇒ B = 5 ± √- 59 / 14

⇒ B = 5 ± 7.68 i / 14

⇒ B - 1 = (5 ± 7.68) / 14 - 1

Thus, Matrix B is invertible.

The eigenvalues of B−1 are = (5 ± 7.68) / 14 - 1

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Answer: you need to add

Step-by-step explanation: I would ask your teacher to help you understand the lesson.  

1.  -3x - 17

2. -24x + 25

3. 2x + 4

4. -9x -9

5. 7x - 2

Answer:

a.   \(1\,\,\,10^4\)

b.   \(1.57\,\,\,10^{-4}\)

c.   \(1.2\,\,\,10^{10}\)

d.   \(1.72\,\,\,10^{-15}\)

e.   \(4.53\,\,\,10^5\)

f.   \(5.682\,\,\,10^{14}\)

g.   \(8.1\,\,\,10^{-8}\)

h.   \(9.04\,\,\,10^{-13}\)

i.   \(7.123\,\,\,10^3\)

j.   \(4\,\,\,10^{-3}\)

Step-by-step explanation:

Start by recognizing the significant figures of the number in question. the first factor to include in the scientific notation should have a non-zero digit followed by a decimal point, and whatever other significant figures follow. Make sure you count how many places you need to move the decimal point to get to the first significant figure for the quantity. If you moved the decimal point to the left in order to get to the first significant figure, you have to include a positive exponent for the base ten, and that exponent is the number of places you counted. If you moved to the right when moving the decimal point to locate it after the first significant figure, you need to include the negative of the number of places you counted in the exponent of the accompanying base 10.

We are going to say that (-1, 6) is the first point:

(x₁, y₁) = (-1, 6)

and that (4, 3) is the second:

(x₂, y₂) = (4, 3)

We want to find the change of each coordinate:

Δy = y₂ - y₁ = 3 - 6 = -3

Δx = x₂ - x₁ = 4 - (-1) = 4 + 1 = 5

Then Δy = - 3 and Δx = 5

We know that the slope, m, is given by:

Δy/Δx = -3/5

Step-by-step explanation:

8 cm² is the correct answer for that question

Given:

Board Length = 3/4

6 equal pieces = 3/4 ÷6

= 3/4 × 1/6

= 1/4 × 1/2

= 1/8

Therefore each equal piece will be 1/8 feet long

Answered by GauthMath if you like please click thanks and comment thanks too.

Answer:

-7, -11

Step-by-step explanation:just count down and up how many steps

The median is the middle value in a data set when the values are arranged in order, so it would help the real estate agent to set a price that is not too high or too low compared to other similar houses. The student is misrepresenting their performance by reporting the mean as the average, which does not accurately reflect their performance due to the outlier.

In statistics, the mean is a measure of central tendency that represents the average value of a set of data. It is calculated by adding up all the values in the data set and dividing the sum by the number of values. The mean is often used to summarize a set of data with a single value that represents the "center" of the data.

Here,

1. For the first situation, the mode would be the most appropriate measure of central tendency because it would tell the supermarket manager which type of lettuce is purchased most often. The mode is the value that appears most frequently in a data set, so it would indicate which type of lettuce is the most popular among customers.

For the second situation, the mean would be the most appropriate measure of central tendency because it would give the average score of all the tests taken during the grading period. The mean is calculated by adding up all the scores and dividing by the number of scores, so it would give a good representation of the student's overall performance.

For the third situation, the median would be the most appropriate measure of central tendency because it would provide a value that is in the middle of the data set, with half of the comparable houses above and half below the selling price.

2. The student is reporting the mean as the average. The mean is calculated by adding up all the grades and dividing by the number of grades, so in this case, the mean would be (97 + 97 + 75 + 70 + 55)/5 = 78.8%. However, this is not an accurate representation of the student's course performance because the mean is sensitive to outliers, which in this case is the low grade of 55%.

If we calculate the median instead, which is the middle value when the grades are arranged in order, we get 77%, which is closer to the actual performance of the student. The median is not affected by outliers, so it provides a better representation of the center of the data set. The student is misrepresenting their performance by reporting the mean as the average, which does not accurately reflect their performance due to the outlier.

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The median is 77%, which is closer to the actual performance of the student.

what is mean?

In statistics, the mean is a measure of central tendency that represents the average value of a set of numbers. It is calculated by adding up all the values in a data set and dividing by the total number of values. The mean is also known as the arithmetic mean or the average. It is commonly used to summarize data and is one of the most widely used measures of central tendency. However, the mean can be sensitive to outliers, which are extreme values that can skew the average and make it less representative of the data set.

The student is reporting the mean as the average. The mean is calculated by adding up all the grades and dividing by the number of grades. In this case, the mean would be:

(97 + 97 + 75 + 70 + 55) / 5 = 78.8%

However, this is not an accurate representation of the student's course performance because the mean is sensitive to outliers, which in this case is the low grade of 55%. If we calculate the median instead, which is the middle value when the grades are arranged in order, we get:

75%, 70%, 55%, 97%, 97%

The median is 77%, which is closer to the actual performance of the student. The median is not affected by outliers, so it provides a better representation of the center of the data set.

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The inequality that describes the problem is C. 8x ≤ 16

Inequalities are created through the connection of two expressions. It should be noted that the expressions in an inequality aren't always equal. Inequalities implies that the expressions are not equal. They are denoted by the symbols ≥ < > ≤.

Since Kamari's Sweet Treats, cookies are packaged in boxes of 8 and the most a box can cost is $16. This will be:

8x ≤ 16

The correct option is C.

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Answer:

a

Step-by-step explanation:

Answer:

What question?

Step-by-step explanation:

Answer:

Step-by-step explanation:

the answer is 18 I think?

Answer:

18

Step-by-step explanation:

6 (legs) x 3 (ants) = 18 legs

It can also be represented as 6+6+6 (18)

hope this helps :)

The conclusion is option A, we cannot reject the null hypothesis.

An assumption or concept is given as a hypothesis for the purpose of debating it and testing if it might be true.

The null hypothesis cannot  be rejected for the entire population if your sample is not sufficiently incompatible with it, which can be determined if your P value is small enough.

Therefore, we can not reject the hypothesis.

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Therefore, the solution to the inequality 3(y + 1/4) > 3/4 is y > 0.

An inequality is a mathematical statement that shows a relationship between two values, which are not necessarily equal. Inequalities are represented using symbols such as > (greater than), < (less than), ≥ (greater than or equal to), and ≤ (less than or equal to). Inequalities are commonly used in algebra and other areas of mathematics, as well as in real-world applications such as finance, economics, and science. They can be used to represent constraints or limits on a variable, such as the maximum or minimum value that it can take.

Here,

We can solve the inequality 3(y + 1/4) > 3/4 by first distributing the 3 to the expression inside the parentheses:

3y + 3/4 > 3/4

Next, we can simplify by subtracting 3/4 from both sides:

3y > 0

Finally, we can solve for y by dividing both sides by 3:

y > 0/3

y > 0

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Answer: 734.4 square inches

Step-by-step explanation:

Step-by-step explanation:

let's create the corresponding equation.

it is linear, because the cost per hour is constant, no matter how many hours the car parks.

t is the variable indicating the amount of hours parking.

every hour costs $2.

and $8 is the starting value (we have to pay that, even if we have 0 hours parking time).

cost(t) = 2t + 8

so, the cost after 3 hours is

cost(3) = 2×3 + 8 = 6 + 8 = $14

\(\underset{in~degrees}{\textit{sum of all interior angles}}\\\\ n\theta = 180(n-2) ~~ \begin{cases} n=\stackrel{number~of}{sides}\\ \theta = \stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ n=5 \end{cases}\implies 5\theta =180(5-2) \\\\\\ 5\theta =180(3)\implies 5\theta =540\implies \theta =\cfrac{540}{5}\implies \theta =108\)

The domain of the function or relation is {6, 9, -4 and 2}

The function is represented by the set of relation or ordered pairs

The ordered pairs in the relation are:

(x, y)  = (6, -3), (9, -3), (-4, 1) and (2, 1)

Remove the y values in the above domain

x = 6, 9, -4 and 2

The x values represent the domain of the function

Hence, the domain of the function or relation is {6, 9, -4 and 2}

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Rollaway Skates is cheaper when the number of people is less than or equal to 4. For example, the cost for 2 people at Rollaway Skates is $10, while the cost for 2 people at Wheelie's Skates and Stuff is $106.

Wheelie's Skates and Stuff is cheaper when the number of people is greater than or equal to 5. For example, the cost for 6 people at Rollaway Skates is $30, while the cost for 6 people at Wheelie's Skates and Stuff is $118.

I hope this helps! Do you have any other questions?

the length of side a is 91 ft (rounded to the nearest whole foot) and the length of side b is 132 ft (rounded to the nearest whole foot). The area of the triangle is approximately 6007 sq ft.

Given: The hypotenuse of the right triangle,

c = 159 ft; angle A = 34°

We know that, in a right-angled triangle:

\($$\sin\theta=\frac{\text{opposite}}\)

\({\text{hypotenuse}}$$$$\cos\theta=\frac{\text{adjacent}}\)

\({\text{hypotenuse}}$$\)

We know the value of the hypotenuse and angle A. Using trigonometric ratios, we can find the length of sides in the right triangle.We will use the following formulas:

\($$\sin\theta=\frac{\text{opposite}}\)

\({\text{hypotenuse}}$$$$\cos\theta=\frac{\text{adjacent}}\)

\({\text{hypotenuse}}$$$$\tan\theta=\frac{\text{opposite}}\)

\({\text{adjacent}}$$\) Length of side a is:

\($$\begin{aligned} \sin A &=\frac{a}{c}\\ a &=c \sin A\\ &= 159\sin 34°\\ &= 91.4 \text{ ft} \end{aligned}$$Length of side b is:$$\begin{aligned} \cos A &=\frac{b}{c}\\ b &=c \cos A\\ &= 159\cos 34°\\ &= 131.5 \text{ ft} \end{aligned}$$\)

Now, we have the values of all sides of the right triangle. We can calculate the area of the triangle by using the formula for the area of a right triangle:

\($$\text{Area} = \frac{1}{2}ab$$\)

Putting the values of a and b:

\($$\begin{aligned} \text{Area} &=\frac{1}{2}ab\\ &=\frac{1}{2}(91.4)(131.5)\\ &= 6006.55 \approx 6007 \text{ sq ft}\end{aligned}$$\)

Therefore, the length of side a is 91 ft (rounded to the nearest whole foot) and the length of side b is 132 ft (rounded to the nearest whole foot). The area of the triangle is approximately 6007 sq ft.

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The markup amount of the purchase is $1114

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

Discount = 30%

Selling price = $780

The markup amount is calculated using the following equation

Selling price = Markup amount * (1 - discount)

Make the markup the subject

Markup = Selling price/(1 - discount)

Substitute the known values in the above equation, so, we have the following representation

Markup = 780/(1 - 30%)

Evaluate

Markup = 1114

Hence, the markup is $1114

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Answer: The answer is x<3 but I can't really tell what the answer choices are

Step-by-step explanation:

-24<x-3-8x

-21<-7x

x<3

Answer:

x=9

Step-by-step explanation:

A triangle is equaled to 180

13x+2+3x-4+5x-7=180

Combine like terms

21x-9=180

Add 9 to both side

21x=189

Divide 21 on both sides

x=9

CHECK:

13x+2

Substitute x with 9

13*9+2=119

3x-4

Substitute x with 9

3*9-4= 23

5x-7

Substitute x with 9

5*9-7=38

119+23+38=180

Answer:

Step-by-step explanation:

13x  + 2 + 5x -7 + 3x - 4 = 180°

21x -9 = 180°

21 x = 180 + 9

21 x = 189

x = 189 : 21

x = 9

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

check

13 * 9 + 2 + 5 * 9 - 7 + 3 * 9 - 4 = 180     (remember pemdas)

180 = 180

the answer is good