One of the legs of a right triangle measures 10 cm and its hypotenuse measures 19 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.​

10 because 10 minus 3 is seven then seven squared is 49

Answer:

sin(100°) = 0.985

sin(-100°) = -0.985

Step-by-step explanation:

In a unit circle, each point (x, y) on the circumference corresponds to the coordinates (cos θ, sin θ), where θ represents the angle formed between the positive x-axis and the line segment connecting the origin to the point (x, y).

Therefore, sin(100°) equals the y-coordinate of the point (-0.174, 0.985), so:

\(\boxed{\sin(100^{\circ}) = 0.985}\)

Similarly, sin(-100°) equals the y-coordinate of the point (-0.174, -0.985), so:

\(\boxed{\sin(-100^{\circ}) = -0.985}\)

In the unit circle the value of sin (100) = 0.985 and the value of sin (-100) = -0.985, in three decimal places.

The value of the sine of the angles is calculated by applying the following formula as follows;

The value of sin (100) is calculated as follows;

sin(100°) corresponds to the y-coordinate of the point (-0.174, 0.985) as given on the coordinates of the unit circle.

sin (100) = 0.985

The value of sin (-100) is calculated as follows;

sin(100°) corresponds to the y-coordinate of the point (-0.174, -0.985), as given on the coordinates of the circle.

sin (-100) = -0.985

Thus, in the unit circle the value of sin (100) = 0.985 and the value of sin (-100) = -0.985, in three decimal places.

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Given statement solution is :- None of the given options (a, b, c, or d) match the meaning of the slope. The correct interpretation is that the car travels approximately 0.8 miles every minute.

To determine the meaning of the slope of the linear model for the given data, let's analyze the information provided. The table represents the distance traveled by a car at different time intervals.

Minutes | Distance Traveled (in miles)

50 | 20

20 | f

40 | 60

100 | a

125 | 80

100 | 100

To find the slope of the linear model, we need to calculate the change in distance divided by the change in time. Let's consider the intervals where the time changes by a fixed amount:

Between 50 minutes and 20 minutes: The distance changes from 20 miles to 'f' miles. We don't have the exact value of 'f', so we can't calculate the slope for this interval.

Between 20 minutes and 40 minutes: The distance changes from 'f' miles to 60 miles. Again, without knowing the value of 'f', we can't calculate the slope for this interval.

Between 40 minutes and 100 minutes: The distance changes from 60 miles to 'a' miles. We don't have the exact value of 'a', so we can't calculate the slope for this interval.

Between 100 minutes and 125 minutes: The distance changes from 'a' miles to 80 miles. Since we still don't have the exact value of 'a', we can't calculate the slope for this interval.

Between 125 minutes and 100 minutes: The distance changes from 80 miles to 100 miles. The time interval is 25 minutes, and the distance change is 100 - 80 = 20 miles.

Therefore, based on the given data, we can conclude that the car travels 20 miles in 25 minutes. To determine the meaning of the slope, we divide the distance change by the time change:

Slope = Distance Change / Time Change

= 20 miles / 25 minutes

= 0.8 miles per minute

So, none of the given options (a, b, c, or d) match the meaning of the slope. The correct interpretation is that the car travels approximately 0.8 miles every minute.

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Answer:

lines f and h are perpendicular because the products of their slopes is -1

Answer:

12/5

Step-by-step explanation:

9 : 3 3/4

9 : 15/4           change to improper fraction

36/4 : 15/4      LCD, 4

36 / 15            compare

12 / 5              reduce

Answer:

Mean - 7.4

Median - 8.5

Mode - 9

Step-by-step explanation:

Mean - add up all of the numbers = 74

then divided by the numbers of numbers (10 numbers) (74/10) = 7.4

Median - the middle number of the data set

Mode - the number most frequent

Answer:

the time at which P =15 is \({t_o = 0.54161 \ years}\)

the time at which P =20 is \({t_1 = 0.59914 \ years}\)

the doubling time \({t = 0.138629 \ years}\)

Step-by-step explanation:

From the information we are being provided with:

The quantity P i.e \(P(t) = e ^{5t}\)

In order to determine the time at which P = 15, we have the following:

\(t= t_o\)    when P = 15

∴ \(e^{5t_o} = 15\)

\(5t_o= In (15)\)

\(t_o = \dfrac{1}{5}In 15\)

\(t_o = \dfrac{1}{5} \times 2.70805\)

\({t_o = 0.54161 \ years}\)

Hence, the time at which P =15 is \({t_o = 0.54161 \ years}\)

In order to determine the time at which P = 20, we have the following:

\(t= t_1\)    when P = 20

∴ \(e^{5t_1} = 20\)

\(5t_1= In (20)\)

\(t_1= \dfrac{1}{5}In (20)\)

\(t_1 = \dfrac{1}{5} \times 2.9957\)

\({t_1 = 0.59914 \ years}\)

Hence, the time at which P =20 is \({t_1 = 0.59914 \ years}\)

The doubling time at t = 0, mean P = 2

∴ \(e^{5t} = 2\)

\(5t= In (2)\)

\(t= \dfrac{1}{5}In(2)\)

\(t = \dfrac{1}{5} \times0.693147\)

\({t = 0.138629 \ years}\)

Hence, the doubling time \({t = 0.138629 \ years}\)

The equation that represents a quadratic relationship is y = 4x^2. Option A.

A quadratic relationship is a mathematical relationship where the variable y is a function of the variable x raised to the power of 2. In other words, it is an equation in which the highest power of the variable is 2.

Let's analyze the given equations:

1. y = 4x^2: This equation represents a quadratic relationship because the variable x is raised to the power of 2. The term 4x^2 indicates that the relationship between x and y is quadratic.

2. y = 4x^4: This equation represents a quartic relationship, not a quadratic relationship. The variable x is raised to the power of 4, which indicates a higher degree relationship than quadratic.

3. y = 4x^3: This equation represents a cubic relationship, not a quadratic relationship. The variable x is raised to the power of 3, indicating a higher degree relationship.

4. y = 4: This equation represents a linear relationship, not a quadratic relationship. It is a constant equation where y is always equal to 4, regardless of the value of x. In a quadratic relationship, the variable x should have a power of 2. Option A.

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Answer:

Use calculation for the population  standard deviation

Step-by-step explanation:

We are given that the data data set represents the ages of all 6 of Nancy's grandchildren

11,8,5,6,3,9

We have to determine which standard deviation would used for calculation of  the given data set.

Sample standard deviation :If the data values represent the data collected from   subset of  population .Then the sample standard deviation should be used.

Population standard deviation:

If the data values represents the data collected from entire population, then population standard deviation should be used.

We can see that the given data collected from entire population.

Therefore, we would use  calculation for population standard deviation of given data set.

Answer:

error in Step 2

Step-by-step explanation:

2(x - 3) + 3x = 19

Step 1 : 2x - 6 + 3x = 19 ← simplify left side by collecting like terms

Step 2 : 5x - 6 = 19 ← add 6 to both sides

Step 3 : 5x - 6 + 6 = 19 + 6

Step 4 : 5x = 25 ← divide both sides by 5

Step 5 : x = 5

Error was made by student in Step 2 who should have added 2x and 3x, not multiplied 2 × 3

Answer:

(x^2 + 4)(x^2 + 8)

Step-by-step explanation:

A relative frequency describes how frequently a particular kind of event happens among all observations. It is a kind of frequency that employs fractions, percentages, and proportions.

Example :

The data provided is

Total men total women

Republican. 600 600 1200

Democrat 500 300 800

other 122 100 222

total. 1222 1000 2222

There were 2222 voters in total (including men and women). There were 222 voters who cast "other" ballots rather than Republican or Democratic ballots.

Therefore, the proportion of all voters who chose "other" rather than a Republican or Democrat is

222/2222 × 100 = 9.990990999099

It becomes 10.0 when rounded to the nearest tenth of a percent.

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Answer:

2.

Step-by-step explanation:

There are 2 complex solutions to this equation:

x^2 = -9

= 3i and -3i.

Answer:

okay but what about

Step-by-step explanation:

x² = 9

9514 1404 393

Answer:

Step-by-step explanation:

The result each should have obtained is ...

  a +10 = 17

  a = 7

Braulio's mistake was in using 1 as his divisor instead of -1. His bottom row should have been 1, 4, a-4, 1-a, a +10.

Zahra's mistake was improperly evaluating higher powers of -1. Her evaluation should have been 1 -5 +a +3 +11 = a +10.

Therefore, Paxton will need to invest her money for approximately 21.62 years to increase her investment from $4850 to $8000 at a simple interest rate of 7.6% per year.

To determine how long Paxton needs to invest her money in order for it to increase to $8000, we can use the formula for simple interest:

I = P * r * t

Where:

I = Interest earned

P = Principal (initial investment)

r = Interest rate per year (expressed as a decimal)

t = Time (in years)

Given that Paxton invests $4850 at an interest rate of 7.6% per year, we have:

4850 * 0.076 * t = 8000

Simplifying the equation:

369.8t = 8000

To find t, we divide both sides of the equation by 369.8:

t ≈ 8000 / 369.8 ≈ 21.62 years

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Answer:

The answer is A.

Step-by-step explanation:

hope this helps

Answer:

B. $8,631.96

Step-by-step explanation:

Create an equation where x is the number of years and y is the car's value

y = 48500(0.75)^x

Plug in 6 as x, since the question asks for the value in 6 years, and simplify:

y = 48500(0.75)^6

y = 8631.96

So, in 6 years, the car will be worth $8,631.96

The correct answer is B. $8,631.96

Answer:

B. $8,631.96

Step-by-step explanation:

Because it is the "Correct Answer"

Therefore , the solution of the given problem of  equation comes out to be (x, y) = (2, 5).

The foundation of a model of linear regression is the equation y=mx+b. The inclination is B, and the y-intercept is m. Although it is true that y and y are separate parts, the the above sentence is frequently referred to as a "mathematics problem with two variables". Only two factors are present in bivariate linear equations. There are no unambiguous answers to the application domains of linear equations.

Here,

=> 5y + 2x = 2 ...(1)

=> x = -2y + 3 ...(2) (2)

Equation (1) is completed by substituting the value of x from equation (2):

=> 5y + 2(-2y + 3) = 2

When we simplify the previous solution, we get:

=>y = 4/3

Adding the value of x to equation (2) now yields:

=> x = -2(4/3) + 3

When we simplify the previous solution, we get:

=> x = 2/3

As a result, the answer is (x, y) = (2/3, 4/3.

=> y + 2x = 9 ...(3)

=> y - 3x = -1 ...(4)

Equation (3) by 3 and Equation (4) by 2 are multiplied to yield:

=>3y + 6x = 27 ...(5)

=> 2y - 6x = -2 ...(6)

Equations (5) and (6) combined give us:

=>5y = 25

Consequently, x = 5.

Adding the number of y to equation (3) yields the following results:

=> 5 + 2x = 9

When we simplify the previous solution, we get:

=> x = 2

Consequently, the answer is (x, y) = (2, 5).

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Given that 16 families went on a trip and the cost of the trip was Rs. 2,16,352.The amount paid by each family is to be determined by unitary method Hence each family paid Rs.13522

Now, let's solve this by using the method of unitary method. To find the cost of 1 family trip, we will divide the total cost of the trip by the number of families.2,16,352 / 16 = 13,522 So, the cost of the trip per family is Rs. 13,522.Hence, each family paid Rs. 13,522 for the trip.

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Answer:

Step-by-step explanation

1. The total cost of the trip for all 16 families is Rs 2,16,352.
2. To find out how much each family paid, we need to divide the total cost by the number of families: Rs 2,16,352 ÷ 16.
3. When we do the division, we get the result: Rs 13,522.

Now let's check if this result is correct:

1. If each family paid Rs 13,522 for the trip, then the total cost for all 16 families would be: 16 × Rs 13,522 = Rs 2,16,352.
2. This is exactly the same as the total cost given in the problem statement.

So we have shown that each family paid **Rs 13,522** for the trip

The change in the optimal objective function value per unit increase in the right-hand side of a constraint is Shadow price .

What does "shadow pricing" mean?

An estimated price for something that is not typically valued or offered for sale in the market is known as a "shadow price."

                          Businesses may gain a better grasp of the costs and advantages of a project thanks to shadow pricing.

What in linear programming is a shadow price?

In linear programming, the maximum cost that must be paid to acquire a new unit of resource is known as the shadow price of the resource restriction.

                         Subtract the original objective function's value from the current objective function's value by one additional unit to determine the shadow price.

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Answer:

3 hours

Step-by-step explanation:

285+55+285+55+285+55=1020

or another way

285+55×3= 1020

The given equations can be simplified as :

a. -2.√15

b.  c ≥ 0

c.   x = ±2√6

d.   y < 0

e.   a > 0

How to solve inequalities ?

When solving an inequality:

a.

Given : √(3-√15)²-√(3+√15)²

   √(3-√15)²-√(3+√15)² = (3-√15)-(3+√15)

   √(3-√15)²-√(3+√15)² = 0 -2√15

   √(3-√15)²-√(3+√15)² = -2.√15

b .  

Given : 3√c² if c≥0

     3√c² if c≥0

    c ≥ 0

c.

Given: √(x²+1)²=5

     √(x²+1)²=5

      on Squaring both sides , we get

      (x²+1) = 25

      x²  = 24

      x = ±2√6

d.

Given : -5√y² if y>0

      -5√y² if y>0

       y < 0 [since , -5 < 0]

e.  

Given : 0.5√16a² if a<0

     0.5√16a² if a<0

      a > 0

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Answer:

1) \(\sqrt{53}(\cos286^\circ+i\sin286^\circ)\)

2) \(\displaystyle 5,-\frac{5}{2}+\frac{5\sqrt{3}}{2}i,-\frac{5}{2}-\frac{5\sqrt{3}}{2}i\)

Step-by-step explanation:

Problem 1

\(z=2-7i\\\\r=\sqrt{a^2+b^2}=\sqrt{2^2+(-7)^2}=\sqrt{4+49}=\sqrt{53}\\\\\theta=\tan^{-1}(\frac{y}{x})=\tan^{-1}(\frac{-7}{2})\approx-74^\circ=360^\circ-74^\circ=286^\circ\\\\z=r\,(\cos\theta+i\sin\theta)=\sqrt{53}(\cos286^\circ+i\sin 286^\circ)\)

Problem 2

\(\displaystyle z^\frac{1}{n}=r^\frac{1}{n}\biggr[\text{cis}\biggr(\frac{\theta+2k\pi}{n}\biggr)\biggr]\,\,\,\,\,\,\,k=0,1,2,3,\,...\,,n-1\\\\z^\frac{1}{3}=125^\frac{1}{3}\biggr[\text{cis}\biggr(\frac{0+2(2)\pi}{3}\biggr)\biggr]=5\,\text{cis}\biggr(\frac{4\pi}{3}\biggr)=5\biggr(-\frac{1}{2}-\frac{\sqrt{3}}{2}i\biggr)=-\frac{5}{2}-\frac{5\sqrt{3}}{2}i\)

\(\displaystyle z^\frac{1}{3}=125^\frac{1}{3}\biggr[\text{cis}\biggr(\frac{0+2(1)\pi}{3}\biggr)\biggr]=5\,\text{cis}\biggr(\frac{2\pi}{3}\biggr)=5\biggr(-\frac{1}{2}+\frac{\sqrt{3}}{2}i\biggr)=-\frac{5}{2}+\frac{5\sqrt{3}}{2}i\)

\(\displaystyle z^\frac{1}{3}=125^\frac{1}{3}\biggr[\text{cis}\biggr(\frac{0+2(0)\pi}{3}\biggr)\biggr]=5\,\text{cis}(0)=5(1+0i)=5\)

Note that \(\text{cis}\,\theta=\cos\theta+i\sin\theta\) and \(125=125(\cos0^\circ+i\sin0^\circ)\)

the value of p is 3/2, the value of q is 3t, and the value of r is 2/9.with  the sum of the first n terms of the arithmetic series formula we are able to solve it

what is arithmetic series  ?

An arithmetic series is a series of numbers in which each term is obtained by adding a fixed number to the preceding term (known as the common difference). The sum of the terms in an arithmetic series can be found by multiplying the average of the first and last

In the given question,

We know that the first term of the arithmetic series is given by (2t+1) and the common difference is 3. Therefore, the nth term can be written as:

aₙ = a₁ + (n-1)d

(14r - 5) = (2t + 1) + (n-1)3

14r - 5 = 2t + 1 + 3n - 3

14r - 4 = 2t + 3n

7r - 2 = t + (3/2)n --------(1)

Now, we need to find the values of p, q, and r for the sum of the first n terms of the series, which is given by:

Sₙ = (n/2)[2a₁ + (n-1)d]

Sₙ = (n/2)[2(2t+1) + (n-1)3]

Sₙ = n(3n+4t+2)/2

We can simplify this expression by factoring out a 2 from the numerator:

Sₙ = n(3n+4t+2)/2 = (2n/2)(3n+4t+2)/2

Sₙ = (n/2)(3n+4t+2) = (3/2)n² + 2tn + n

Now, we need to write this expression in the form p(qt-1). To do this, we need to factor out (3/2):

Sₙ = (3/2)(n² + 4/3 tₙ + 2/3 n)

Sₙ = (3/2)[n² + 4/3 tₙ + (2/9)(3n)]

Sₙ = (3/2)[(n + (2/3)t)² - (4/9)t² + (2/9)n]

Sₙ = (3/2)[(n + (2/3)t)² - (4/9)t² + (2/9)n + (4/9)t² - (4/3)tₙ + (4/3)tₙ]

Sₙ= (3/2)[(n + (2/3)t)² - (4/9)t² + (2/9)n + (4/3)tₙ]

Sₙ = (3/2)[(n + (2/3)t)² - (4/9)t² + (2/9)(3t*n)]

Now we can see that p=3/2, q=3t, and r=2/9. Therefore, the value of p is 3/2, the value of q is 3t, and the value of r is 2/9.

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That both a and b are equally likely, is also not true since the Probability of option b is higher than that of option a.

Option b is more likely to be true. This is because the given information states that the showerhead heights were designed to be 72 inches, which is well above the mean height of 69.5 inches. Therefore, it is reasonable to assume that the majority of the players' heights are below 72 inches. Since the heights of the athletes are normally distributed, the probability of selecting a player at random with a height above 72 inches is relatively low. On the other hand, option a suggests that the mean height of a sample of 20 players is more than 72 inches, which is less likely than option b. Option c, which suggests that both a and b are equally likely, is also not true since the probability of option b is higher than that of option a.

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Answer:

1,920

Step-by-step explanation:

125% × x = 24

x = 19.2

125% divided by 100 = 1.25

19.2 x 100 = 1920

Answer:

the value of the expression 14 1/3 - 6 5/8 is 185/24.

Step-by-step explanation:

To solve this problem, you can convert both mixed numbers to improper fractions, then subtract the fractions and simplify the result. Here are the steps:

1. Convert 14 1/3 to an improper fraction:

14 1/3 = (14 x 3 + 1) / 3 = 43 / 3

2. Convert 6 5/8 to an improper fraction:

6 5/8 = (6 x 8 + 5) / 8 = 53 / 8

3. Subtract the fractions:

43 / 3 - 53 / 8 = (43 x 8 - 53 x 3) / (3 x 8) = (344 - 159) / 24 = 185 / 24

So the value of the expression 14 1/3 - 6 5/8 is 185/24.

Step-by-step explanation: