Please help me with my math homework!!!

Answer:

203

Step-by-step explanation:

We have to solve this according to BODMAS THEOREM to solve this.

That is,

B ⇒ Brackets

O ⇒ Orders.

D ⇒ Division

M ⇒ Multiplication

A ⇒ Addition

S ⇒ Subtraction

Let us solve it now.

2 + 1000 - 789 + 12 - 2 x 10 - 2

2 + 1000 - 789 + 12 - 20 - 2

1002 - 789 + 12 -20 - 2

213 + 12 - 20 - 2

225 - 20 - 2

205 - 2

203

The solution of 2+1000-789+12-2x10-2 using BODMAS is 203.

We know about BODMAS which shows the correct order to solve mathematical expression as

B ⇒ Brackets

O ⇒ Of

D ⇒ Division

M ⇒ Multiplication

A ⇒ Addition

S ⇒ Subtraction

Now, we have to solve 2+1000-789+12-2x10-2 using BODMAS

= 2 + 1000 - 789 + 12 - 2 x 10 - 2

= 2 + 1000 - 789 + 12 - 20 - 2

= 1002 - 789 + 12 -20 - 2

= 213 + 12 - 20 - 2

= 225 - 20 - 2

= 205 - 2

= 203

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Answer: The interval of convergence is: x ∈ (2, 4) and the series is convergent from x=2, left end included, to x=4, right end included.

Step-by-step explanation:

To get the power series for 1/x with center 3, we can use the fact that:

1/x = (1/(x-3)) / (1/3)

Then, we can use the formula for the geometric series:

1/(1-r) = ∑n=0^∞ r^n, for |r| < 1

to obtain:

1/(x-3) = -1/(3(1-(x-3)/3)) = -1/3 ∑n=0^∞ ((x-3)/3)^n, for |(x-3)/3| < 1

Multiplying both sides by 1/3, we get:

1/x = -1/9 ∑n=0^∞ ((x-3)/3)^n, for |(x-3)/3| < 1

So, the power series for 1/x with center 3 is:[infinity]∑n=0 (-1/9) ((x-3)/3)^n

To obtain its interval of convergence, we note that the series converges if:|(x-3)/3| < 1 which is equivalent to:

-1 < (x-3)/3 < 1

Solving for x, we get:

2 < x < 4

Therefore, the interval of convergence is: x ∈ (2, 4)

And the series is convergent from x=2, left end included, to x=4, right end included.

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The solution is : 14 inches is the diameter of the cookie cake.

We know that,

area of a circle = πr²

We know the area = 153.86

So substitute and solve for radius.

153.86 = (3.14) *  r^2

153.86/3.14 =  r^2

49 = r^2

take square root of both sides

7 = r

The diameter is double the radius.

Diameter = 2r

So 2 * r = 2 * 7 = 14 inches

Hence, The solution is : 14 inches is the diameter of the cookie cake.

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the answer to your question is X= -1

The box plot would show the distribution of Tori's training runs and provide insights into the Central tendency and variability of the data.

A box plot, also known as a box-and-whisker plot, is a visual representation of the distribution of a dataset. It shows the median, quartiles, and range of the data. The median is the middle value of the dataset, the first quartile is the value that separates the lowest 25% of the data from the rest, and the third quartile is the value that separates the lowest 75% of the data from the rest. The range is the distance between the minimum and maximum values of the data.

To create a box plot for Tori's training runs, you would first order the data from smallest to largest: 6, 7, 8, 8, 11, 12, 13, 15, 16, 16, 20. Then, you would find the median (the middle value), which is 12.5. Next, you would find the first quartile (the value that separates the lowest 25% of the data from the rest), which is 8, and the third quartile (the value that separates the lowest 75% of the data from the rest), which is 16. Finally, you would calculate the range (the distance between the minimum and maximum values), which is 14 (20 - 6).

To draw the box plot, you would draw a rectangle with the bottom edge at the first quartile and the top edge at the third quartile. Inside the rectangle, draw a line at the median. Then, draw whiskers (lines) from the edges of the rectangle to the minimum and maximum values of the data (6 and 20). Any outliers (values that are more than 1.5 times the interquartile range away from the nearest quartile) can be plotted as individual points outside of the whiskers.

Without a visual representation of the data, it is difficult to say which box plot represents the data. However, the box plot would show the distribution of Tori's training runs and provide insights into the central tendency and variability of the data.

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This particular bank statement is likely assigned to a credit card account owing to the given credit line and statement balance of $3,000.00 and $756.37 respectively.

Thereby allowing the account holder to utilize an unused credit provision of $2,246.63 available for expenditures.

Should the owner need to settle a medical payment amounting to $5,000, an increase in the credit limit could be requested as one option.

But if this due date passes, on August 5th, they may face potential penalty charges such as late fees, interest fees, or even cause harm to their credit score.

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The experimental probability that the next menu slipped under Britney's door will be from a Chinese restaurant is 0.1 or 10%.

To find the experimental probability that the next menu slipped under Britney's door will be from a Chinese restaurant, we need to determine the number of Chinese restaurant menus in relation to the total number of menus.

The total number of menus is the sum of menus from all types of restaurants:

Total number of menus = Chinese + Japanese + Mediterranean + Thai + Italian

= 2 + 9 + 1 + 2 + 6

= 20

The number of Chinese restaurant menus is 2.

Now we can calculate the experimental probability:

Experimental probability of getting a Chinese restaurant menu = Number of Chinese restaurant menus / Total number of menus

= 2 / 20

= 0.1

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Answer:

He would have 20,00

Step-by-step explanation:

You first have to calculate the profit them add it to your original price and since he put 2,500 in for five years you multiply 2,500 by five to get your original price before you add your interest to it

Answer:  B. Acting as a lender of last resort.

A bank run occurs when a large number of depositors withdraw their funds from a bank, which can lead to a bank's insolvency.

A central bank like the Federal Reserve can help banks survive a bank run by acting as a lender of last resort.

This means that the central bank will provide funds to the bank in the form of loans or other financial assistance to ensure that it has enough cash on hand to meet the demands of depositors who are withdrawing their funds.

By doing so, the central bank can prevent the bank from going bankrupt and restore confidence in the banking system.

Other measures such as increasing the required reserve ratio or raising the discount rate may also be used to control the money supply and stabilize the economy, but they may not directly address the issue of a bank run.

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Answer:

D is the correct answer.

ZY + YX = ZX

A triangle is a shape with 3 sides and angles. The measure of angle ∠ABC is 57.6 degrees

Here, we have,

Application of trigonometry identity

A triangle is a shape with 3 sides and angles. Given the following parameters

∠CAB = 90°.

AB = 5.9 m and;

BC = 11.1m.

Determine the measure of ∠ABC

cos∠ABC = AB/BC

cos∠ABC = 5.9/11

cos∠ABC = 0.5363

∠ABC = arccos0.5363

∠ABC = 57.6 degrees

Hence the measure of angle ∠ABC is 57.6 degrees

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The sum of the given finite geometric series is approximately 0.6640625.

[tex]S_n= \frac{ a(1 - r^n)}{(1 - r)}[/tex]

Substituting the values, we get:

[tex]S_n =\frac{ 1(1 - (-1/2)^n) }{1 - (-1/2)}[/tex]

=  [tex]\frac{1(1 - (-1/2)^n)}{(3/2)}[/tex]

= [tex]2/3(1 - (-1/2)^n)[/tex]

To find the sum of the given series, we need to evaluate S_8, since there are 8 terms in the series:

[tex]S_8 = 2/3(1 - (-1/2)^8)[/tex]

=  2/3(1 - 0.00390625)

=  2/3(0.99609375)

=  0.6640625

Therefore, the sum of the given finite geometric series is approximately 0.6640625.

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The statement "the function is decreasing from x = −3 to x = −1" is true for this function.

To determine whether the function is increasing or decreasing on a particular interval, we need to compare the values of g(x) for the endpoints of the interval. In this case, we are asked to consider the interval from x = −3 to x = −1. At x = −3, g(x) = 17. At x = −1, g(x) = −3. Since g(x) is decreasing from 17 to −3 as we move from left to right along the interval, we can conclude that the function is decreasing on this interval.

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Answer:

"the function is decreasing from x = −3 to x = −1"

Step-by-step explanation:

i took the test :)

The student used 0.545 liters of the solution in the experiment.

We have,

To convert the unit milliliters to liters, you need to divide by 1000 since there are 1000 milliliters in 1 liter.

So, to find how many liters were used, you can divide 545 milliliters by 1000.

= 545 mL ÷ 1000

= 0.545 L

Therefore,

The student used 0.545 liters of the solution in the experiment.

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by strong induction, we can form any amount of money that is a multiple of $2$ greater than or equal to $2$.To prove this using strong induction, we need to show two things:

1. That we can form the amounts $2$ and $5$ using just $2$-dollar bills and $5$-dollar bills.
2. That if we can form any amount $n$ using just $2$-dollar bills and $5$-dollar bills, we can also form the amount $n+2$.

For the base case, it's clear that we can form the amounts $2$ and $5$.

For the inductive step, assume that we can form any amount $k$ using just $2$-dollar bills and $5$-dollar bills, where $k \geq 5$. We want to show that we can also form the amount $k+2$.

There are two cases to consider:

1. If we have at least one $5$-dollar bill, then we can form the amount $(k+2)$ by adding a $5$-dollar bill to the amount $(k-3)$, which we know we can form using just $2$-dollar bills and $5$-dollar bills.
2. If we don't have any $5$-dollar bills, then we must have at least two $2$-dollar bills. We can form the amount $(k+2)$ by using one of the $2$-dollar bills to form the amount $(k-3)$, which we know we can form, and then adding three more $2$-dollar bills.

Therefore, by strong induction, we can form any amount of money that is a multiple of $2$ greater than or equal to $2$.

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To perform a statistical test on the sample and determine if the average age is consistent with your hypothesis that it is less than 50, we can use a one-sample t-test. The null hypothesis (H0) is that the population average age is equal to or greater than 50, and the alternative hypothesis (Ha) is that the population average age is less than 50.

Using the sample data, we calculate the t-test statistic by subtracting the assumed population mean (50) from the sample mean, dividing it by the standard error of the mean, and considering the sample size.

Next, we compare the t-test statistic with the critical t-value at a significance level of 5%. If the t-test statistic is smaller than the critical t-value, we reject the null hypothesis and conclude that the average age is consistent with being less than 50.

The p-value from the test represents the probability of obtaining a t-test statistic as extreme as the observed value, assuming the null hypothesis is true. We compare the p-value with the significance level to make our decision.

Unfortunately, the p-value was not provided in the answer choices. The p-value obtained from the test would need to be calculated separately to determine the correct answer option.

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The translated triangle is A'B'C', and its vertices are (-3, -1), (-3, -5), and (-1.5, -5). (option b)

To translate the triangle two units to the left, we need to subtract 2 from the x-coordinates of each vertex, while leaving the y-coordinates unchanged. This is because moving the triangle left means we're decreasing its x-values.

So, let's apply this transformation to each point.

The first point, (-1, -1), becomes (-1 - 2, -1), which simplifies to (-3, -1).

The second point, (-1, -5), becomes (-1 - 2, -5), or (-3, -5).

The third point, (0.5, -5), becomes (0.5 - 2, -5), or (-1.5, -5).

These new coordinates give us the vertices of the triangle after it has been translated two units to the left.

Now that we have the new vertices, we can label them A', B', and C' to distinguish them from the original vertices. So, the translated triangle is A'B'C', and its vertices are (-3, -1), (-3, -5), and (-1.5, -5).

This is the second option in the answer choices given.

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The given geometric series is divergent.


To determine whether the geometric series is convergent or divergent, we need to first identify the common ratio (r). Let's analyze the given series:

7, 6, 36/7, 216/49, ...

To find the common ratio, divide the second term by the first term, and the third term by the second term:
r1 = 6 / 7
r2 = (36/7) / 6 = 6 / 7

Since r1 = r2, the common ratio (r) is 6/7.

Now we can determine if the series is convergent or divergent. A geometric series converges if the absolute value of the common ratio (|r|) is less than 1, and diverges otherwise.

In this case, |r| = |6/7| = 6/7, which is less than 1. However, the first term of the given series is 7, which doesn't belong to the geometric sequence with a common ratio of 6/7. The correct geometric sequence should be:

6, 36/7, 216/49, ...

So, the given series is not a geometric series, and thus we cannot determine if it's convergent or divergent using the geometric series test. Since it doesn't form a proper geometric sequence, we can conclude that it is divergent.

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The correct statements that describe the graph of the function

f(x) = x^4 - 2x² + 1 are:

c. When x = -2, f(x) = 0.

f. When x = -1, f(x) = 0.

e. As x approaches positive infinity, f(x) approaches positive infinity.

b. As x approaches negative infinity, f(x) approaches negative infinity.

We have,

Statement (a) is incorrect because as x approaches positive infinity, f(x) approaches positive infinity, not negative infinity.

Statement (d) is incorrect because as x approaches negative infinity, f(x) approaches negative infinity, not positive infinity.

The graph of the function f(x) = x^4 - 2x² + 1 is a parabola that opens upwards, which means that as x approaches positive infinity, the value of f(x) also approaches positive infinity.

This makes statement (e) true.

Similarly, as x approaches negative infinity, the value of f(x) also approaches negative infinity because the polynomial function contains even powers of x. This makes statement (b) true.

The function f(x) has two real roots, which occur when f(x) = 0. These roots are x = -2 and x = -1.

At these values, the function crosses the x-axis and changes sign from positive to negative.

This makes statements (c) and (f) true.

Thus,

The correct statements that describe the graph of the function

f(x) = x^4 - 2x² + 1 are:

c. When x = -2, f(x) = 0.

f. When x = -1, f(x) = 0.

e. As x approaches positive infinity, f(x) approaches positive infinity.

b. As x approaches negative infinity, f(x) approaches negative infinity.

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Answer: The correct statements are: As x approaches negative infinity, f(x) approaches positive infinity; When x = -1, f(x) = 0; and As x approaches positive infinity, f(x) approaches positive infinity.

Step-by-step explanation:

Step 1: Analyze the function

The given function is f(x) = x^4 - 2x^2 + 1.

Step 2: Determine the behavior as x approaches infinity

Since the highest degree term is x^4, as x approaches positive or negative infinity, the x^4 term will dominate the function. Since x^4 is always positive for any real value of x, f(x) will approach positive infinity as x approaches both positive and negative infinity.

Step 3: Check for zeros of the function

To find the zeros of the function, we need to solve the equation f(x) = 0.

x^4 - 2x^2 + 1 = 0

This is a quadratic equation in terms of x^2. Let y = x^2, then the equation becomes:

y^2 - 2y + 1 = 0

(y - 1)^2 = 0

y = 1

Now, substitute back x^2 for y:

x^2 = 1

x = ±1

Step 4: Check the given statements

1. As x approaches negative infinity, f(x) approaches positive infinity. (True)

2. As x approaches negative infinity, f(x) approaches negative infinity. (False)

3. As x approaches positive infinity, f(x) approaches negative infinity. (False)

4. When x = -1, f(x) = 0. (True)

5. As x approaches positive infinity, f(x) approaches positive infinity. (True)

6. When x = -2, f(x) = 0. (False)

The probability that the person picks a 4 as the first number (event H) and the second number exceeds 5 (event K) is 1/30.

We can determine the probabilities of events H and K as follows:

P(H) = probability of picking a 4 as the first number = 1/6 (since there are 6 equally likely numbers to choose from and only 1 of them is a 4)

P(K) = probability of picking a number greater than 5 as the second number = 1/5 (since there are 5 remaining numbers to choose from and only 1 of them is greater than 5)

Now, we need to find the probability of both events H and K occurring, which is denoted as P(H ∩ K).

Since the person must randomly pick two numbers and the second number must be different from the first, the total number of equally likely outcomes is 6 * 5 = 30 (6 choices for the first number and 5 choices for the second number).

Out of these 30 equally likely outcomes, there is only 1 outcome where the first number is 4 and the second number exceeds 5, which is (4, 6). Therefore, P(H ∩ K) = 1/30.

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Para escolher o pote de miçangas que permitirá fazer uma quantidade exata de pulseiras sem sobrar nenhuma miçanga no pote, precisamos encontrar um número que seja divisível por 16 em cada um dos valores apresentados nos potes.

Analisando as opções apresentadas no quadro, podemos ver que apenas a quantidade de miçangas no pote B é divisível por 16, já que 16 x 9 = 144. Portanto, Ana deve escolher o pote B com 144 miçangas para confeccionar as pulseiras de seus amigos. Dessa forma, ela poderá fazer 9 pulseiras utilizando todas as miçangas disponíveis no pote. As outras opções apresentam quantidades de miçangas que não são divisíveis por 16, o que resultaria em sobras de miçangas no processo de confecção das pulseiras.

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Answer: To find the distance between Jannick's house and Milos' house, we can use the Pythagorean theorem. We first need to find the total distance travelled by Jannick:

Distance north + Distance east + Distance south =
√(2^2 + 5^2) + 4.5 = √29 + 4.5 ≈ 8.74 miles

Therefore, the distance between Jannick's house and Milos' house is approximately 8.74 miles.

10 is the number that belongs to the green box in the triangle.

Let us find the third interior angle in the triangle

By angle sum property the sum of three angles is 180 degrees

78+56+x=180

134 + x =180

Subtract 134 from both sides

x=180-134

x=46

So sin 56 /12 = sin 46/x

0.829/12=0.7193/x

0.069=0.7193/x

x=0.7193/0.069

The number in green box x=10.42

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The function that models the number of foxes in Rocky Mountain National Forest after x years is N(x) = [tex]76,000 \times (0.98)^x[/tex]

To model the number of foxes in Rocky Mountain National Forest after x years, we can use exponential decay since the fox population is decreasing at a rate of 2% each year.

Let N(x) represent the number of foxes after x years.

We can write the function as:

N(x) = [tex]N_0 \times (1 - r)^x[/tex]

Where:

N₀ is the initial number of foxes (76,000 in this case),

r is the decay rate (2% or 0.02), and

x is the number of years.

Plugging in the values, we get:

N(x) = [tex]76,000 \times (1 - 0.02)^x[/tex]

Simplifying further, we have:

N(x) = [tex]76,000 \times (0.98)^x[/tex]

This function models the number of foxes in Rocky Mountain National Forest after x years.

By substituting different values of x, we can calculate the estimated number of foxes in the forest for any given year.

It's important to note that this model assumes a continuous exponential decay and does not account for other factors that may affect the fox population.

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To conduct a hypothesis test to compare the gestation periods of the two frog species, we can use a two-sample t-test assuming equal variances.

State the hypotheses:

The null hypothesis (H0) is that there is no difference in the mean gestation periods between species A and B.

H0: μA = μB

The alternative hypothesis (Ha) is that there is a difference in the mean gestation periods between species A and B.

Ha: μA ≠ μB

Set the significance level:

The significance level, denoted as α represents the probability of making a Type I error (rejecting the null hypothesis when it is actually true). In this case, the significance level is given as 0.05.

Calculate the test statistic:

We can use the two-sample t-test formula to calculate the t-statistic.

Where A and B are the sample means of gestation periods for species A and B, respectively, s is the pooled standard deviation and nA and nB are the sample sizes for species A and B, respectively.

The pooled standard deviation can be calculated as:

t = -6.28

Determine the critical value:

The critical value of t can be found using a t-distribution table with degrees of freedom (df) equal to nA + nB - 2.

At a significance level of 0.05 with df = 16 + 23 - 2 = 37 the critical values are -2.02 and 2.02 (two-tailed test).

Make a decision and interpret the results:

The absolute value of the calculated t-statistic (6.28) is greater than the critical value (2.02).

Indicating that we can reject the null hypothesis.

Thus, we can conclude that there is a statistically significant difference in the mean gestation periods between species A and B.

Calculate the p-value:

The p-value is the probability of obtaining a t-statistic as extreme as the one calculated or more extreme, assuming the null hypothesis is true.

We can use a t-distribution table or a statistical software package to find the p-value.

For this example,

The p-value is very small (p < 0.0001), indicating strong evidence against the null hypothesis.

Therefore, we can conclude that the average lengths of the gestational periods differ significantly between the two newly discovered frog species, with species B having a longer gestation period than species A.

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The probability of getting a head on the first coin flip is 1/2. Assuming that the coins are fair and independent, the probability of getting another head on the second coin flip is also 1/2. By the multiplication rule of probability, we can find the probability of both events occurring by multiplying their individual probabilities:

P(head, then another head) = P(head on first flip) * P(head on second flip)

= (1/2) * (1/2)

= 1/4

Therefore, the probability of getting a head on the first coin flip and another head on the second coin flip is 1/4.

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Answer:

C. -18

Step-by-step explanation:

3(-3)+4(-6)+15=

-9+-24+15

-33+15=-18

Answer:

Step-by-step explanation:

x=-3 and y=-6  ⇒

so if we add these numbers together, we will have :

-9 + (-24) + 15 = -18

and it is C .

The answer to this question is  the test statistic is a. option a. 100.75.

To arrive at this answer, we need to use the chi-square distribution to test the null hypothesis that the population variance (σ2) is equal to 20. The test statistic for this hypothesis test is given by:

χ2 = (n - 1) * s²  / σ2

where n is the sample size, s is the sample standard deviation, and σ is the population standard deviation (which is assumed to be equal to the hypothesized value of 20).

Substituting the given values, we get:

χ2 = (41 - 1) * 5² / 20
χ2 = 40 * 25 / 20
χ2 = 50

Therefore, the test statistic is 50.

However, to determine the p-value (i.e. the probability of obtaining a test statistic as extreme or more extreme than the observed one, assuming the null hypothesis is true), we need to consult a chi-square distribution table with (n - 1) degrees of freedom. For this problem, the degrees of freedom is 40 (i.e. 41 - 1).

Using the chi-square distribution table, we find that the p-value for a test statistic of 50 with 40 degrees of freedom is less than 0.001. This means that the probability of obtaining a sample with a variance as extreme or more extreme than 20 (assuming the null hypothesis is true) is less than 0.001.

Therefore, we can reject the null hypothesis at a significance level of 0.001 or lower. This leads us to the conclusion that the population variance is unlikely to be 20, based on the given sample of 41 observations with a sample standard deviation of 5.

finding the p-value using a chi-square distribution table, and making a conclusion based on the significance level. The main answer is option a. 100.75, which corresponds to the test statistic calculated using the formula χ2 = (n - 1) * s²  / σ2.

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Answer:

38

Step-by-step explanation:

Answer:

Set your calculator to degree mode.

Using the Law of Cosines:

c = √(27^2 + 13^2 - 2(27)(13)(cos 106°))

= 33.0378

Now use the Law of Sines:

sin A/13 = sin 106°/33.0378

sin A = 13 sin 106°/33.0378

A = 22.2°

The measure of angle ∠A will be 22.1°. Then the correct option is B.

Given that:

a = 13 in

b = 27 in

∠C = 106°

Let the triangle ΔABC, then the cosine law is given as,

c² = a² + b² - 2 a·b cos C

The length AB of the triangle is calculated as,

c² = 13² + 27² - 2 · 13 · 27 · cos 106°

c² = 169 + 729 - (-196.5)

c² = 1094.5

c = 33.08 inches

The measure of ∠A is calculated as,

a² = b² + c² - 2 b·c cos A

13² = 27² + 33.08² - 2 x 27 x 33.08 x cos A

cos A = 0.9262

A = 22.1°

The measure of angle ∠A will be 22.1°. Then the correct option is B.

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