PLSSSSS!!!!!!!! HELP ME I ONLY HAVE 1 MIN IF U ANSWER I'LL GIVE YOU THE CROWN!!!!!! 100 POINTS!!!!!!!!!!!!!!!

Answer:

\(\sin 2A + \csc 2A = 2.122\)

Step-by-step explanation:

Let \(f(A) = \sin A + \csc A\), we proceed to transform the expression into an equivalent form of sines and cosines by means of the following trigonometrical identity:

\(\csc A = \frac{1}{\sin A}\) (1)

\(\sin^{2}A +\cos^{2}A = 1\) (2)

Now we perform the operations: \(f(A) = 3\)

\(\sin A + \csc A = 3\)

\(\sin A + \frac{1}{\sin A} = 3\)

\(\sin ^{2}A + 1 = 3\cdot \sin A\)

\(\sin^{2}A -3\cdot \sin A +1 = 0\) (3)

By the quadratic formula, we find the following solutions:

\(\sin A_{1} \approx 2.618\) and \(\sin A_{2} \approx 0.382\)

Since sine is a bounded function between -1 and 1, the only solution that is mathematically reasonable is:

\(\sin A \approx 0.382\)

By means of inverse trigonometrical function, we get the value associate of the function in sexagesimal degrees:

\(A \approx 22.457^{\circ}\)

Then, the values of the cosine associated with that angle is:

\(\cos A \approx 0.924\)

Now, we have that \(f(A) = \sin 2A +\csc2A\), we proceed to transform the expression into an equivalent form with sines and cosines. The following trignometrical identities are used:

\(\sin 2A = 2\cdot \sin A\cdot \cos A\) (4)

\(\csc 2A = \frac{1}{\sin 2A}\) (5)

\(f(A) = \sin 2A + \csc 2A\)

\(f(A) = \sin 2A + \frac{1}{\sin 2A}\)

\(f(A) = \frac{\sin^{2} 2A+1}{\sin 2A}\)

\(f(A) = \frac{4\cdot \sin^{2}A\cdot \cos^{2}A+1}{2\cdot \sin A \cdot \cos A}\)

If we know that \(\sin A \approx 0.382\) and \(\cos A \approx 0.924\), then the value of the function is:

\(f(A) = \frac{4\cdot (0.382)^{2}\cdot (0.924)^{2}+1}{2\cdot (0.382)\cdot (0.924)}\)

\(f(A) = 2.122\)

-2, -4/3, -8/9, -16/27, -32/81

-2 x 2/3

-2 x 2 = -4, 1 x 3 = 3

-2/1 x 2/3 = -4/3

Answer:

(a) Slope of Line 1 = 3

    Slope of Line 2 = 3

    Slope of Line 3 = -1/3

(b)

Line 1 and Line 2 = Parallel

Line 1 and Line 3 = Perpendicular

Line 2 and Line 3 = Perpendicular

Step-by-step explanation:

Please mark as brainliest! Thanks! Hope this helps!

The solution to the equation is x = -5.

To solve the equation (0.8 + 0.7x) / x = 0.86, we can begin by multiplying both sides of the equation by x to eliminate the denominator:

0.8 + 0.7x = 0.86x

Next, we can simplify the equation by combining like terms:

0.7x - 0.86x = 0.8

-0.16x = 0.8

To isolate x, we divide both sides of the equation by -0.16:

x = 0.8 / -0.16

Simplifying the division:

x = -5

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Answer:

2y ( 2x + 9ry)

Step-by-step explanation:

A.) Find the greatest common factor and factor out:

(2y x 2x) + (2y x 9ry) = 2y ( 2x + 9ry )

or

B.) Expand each expression:

4xy = ( 2 x 2 x X x y )

18ry^2 = ( 2 x 3 x 3 x r x y x y )

( 2 x 2 x X x y ) + ( 2 x 3 x 3 x r x y x y )

Then, take out like terms and put the expanded factors back together:

2y ( 2 x X + 3 x 3 x r x y ) = 2y ( 2x + 9ry )

Hope this helps!

Answer:

11+x

Step-by-step explanation:

Let the number be x

11 more than the more will be

11+x

Answer:

Obtuse

Step-by-step explanation:

Since the angle is higher than 90 degrees (which would be labeled as a box in the corner), the angle of A is obtuse

Answer:

obtuse

Step-by-step explanation:

obtuse - larger than a right angle/90°

right angle- would have the box in the inner corner to show its a right angle

acute - smaller than a right angle/90°

Answer:

9x-8y=8

Step-by-step explanation:

4x-6y=13

-5x+2y=5

9x-8y=8

when you subtract a negative the negative turns to a postivie.

this means that you would be adding 4x and 5x which makes 9x and then subtrcacting 2y into -6y which brings that result to -8y and then lastly you are subtracting 13-5 which is 8

The lengths of sides a and b are required in order to determine the values of the six trigonometric functions (sine, cosine, tangent, cosecant, secant, and cotangent) of angle or angle 0 in the shown figure. Only the values of a (28) and b (21) are given, though.

We need more details about the angles or lengths of the other sides of the triangle in order to calculate the values of the trigonometric functions. It is impossible to determine the precise values of the trigonometric functions without this knowledge.

We could use the ratios of the sides to compute the trigonometric functions if we knew the lengths of other sides or the measurements of other angles. As an illustration, sine () denotes opposed and hypotenuse, cosine () adjacent and hypotenuse, tangent opposite and adjacent, and so on.

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The force the structural base must provide to support the water in the tower is approximately 802,179,439.36 lbf.

To find the force the structural base must provide to support the water in the tower, we can use the formula: force = weight = mass * acceleration due to gravity.

First, we need to find the mass of the water in the tower. We can do this by converting the volume of water in gallons to cubic feet and then multiplying it by the density of water.

1. Convert the volume of water from gallons to cubic feet:

- 1 gallon = 0.13368 cubic feet (approximately)

- So, the volume of water in the tower = 3 million gallons * 0.13368 cubic feet/gallon = 401,040 cubic feet (approximately)

2. Now, we can find the mass of the water: - Mass = volume * density = 401,040 cubic feet * 62.4 lb/ft³ = 25,008,096 lb (approximately)

3. Finally, we can calculate the force or weight the structural base must provide:

- Force = weight = mass * acceleration due to gravity = 25,008,096 lb * 32.1 ft/s² = 802,179,439.36 lbf (approximately)

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Answer:

(2;5)

Step-by-step explanation:

Elimination:

Let's first multiply the first by 2 to clear fractions and write them both in standard form:

\(\left\{ {x-2y=-8} \atop {2x+y=9}} \right. \\\)

Eliminate x: Multiply the first by 2, then subtract the equations:

\(2I-II: 2x-4y-2x-y=-16-9\\-5y=-25 \rightarrow y= 5\)

Eliminate y: Multiply the second by 2, then add equations:

\(I+2II: x-2y +4x+2y = -8+18\\5x=10 \rightarrow x=2\)

Subtsitution

Solve the first for y (oh, what a coincidence, it's done already!) and replace the value in the second.

\(\frac12x +4 = -2x+9 \rightarrow \ x+8=-4x+18\\x+4x = 18-8 \rightarrow 5x=10 \rightarrow x=2\)

Then let's plug this value into a convenient one - let's say, the first - and find y from there:

\(y=\frac12\cdot 2 +4\rightarrow y =1+4 \rightarrow y=5\)

If anyone tries saying it's not substitution, bring the system in standard form, as you did for the elimination method, then solve again for y.

Answer:

128.5 thousand dollars

Step-by-step explanation:

The number of DVDs the company can sell to maximize the profit is 85

What is differentiation?

In mathematics, differentiation is the process of determining the derivative, or rate of change, of a function. Differentiation is a technique for determining a function's derivative. Differentiation is a mathematical procedure that determines the instantaneous rate of change of a function based on one of its variables. The process of finding the derivative of dependent variable in an implicit function by differentiating each term separately

Given data ,

Let the profit P for producing n DVD copies be P ( n )

where P ( n ) = −0.02n² + 3.40n − 16

Now , to find the maximum number of DVDs to produce in order to maximize the profit is calculated by finding the derivative of P ( n ) with respect to n

And , dP (n) / dn = 0

So , the equation will be

P ( n ) = −0.02n² + 3.40n − 16

dP (n) / dn = -0.04n + 3.4

When dP (n) / dn = 0 , we can find the value for n

So ,

-0.04n + 3.4 = 0

Adding 0.04n on both sides , we get

0.04n = 3.4

Divide by 0.04 on both sides , we get

n = 85

Hence , The number of DVDs the company can sell to maximize the profit is 85

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Answer:

Step-by-step explanation:

assuming the two angles are supplementary, add them together to equal 180.

0.19x+57+0.06x+36=180

combine like terms

0.25x+93=180

subtract 93 from both sides

0.25=87

divide both sides by 0.25

x=348

ABD is 123.12 degrees

CBD is 56.88 degrees

Answer:

x = 5

Step-by-step explanation:

You are solving for a x that can, when plugged in, equate both given expressions. To do so, set each given expression equal to each other:

4x - 4 = 8x - 24

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& roots)

Multiplications

Divisions

Additions

Subtractions

~

First, subtract 8x and add 4 to both sides of the equation:

4x (-8x) - 4 (+4) = 8x (-8x) - 24 (+4)

4x - 8x = -24 + 4

-4x = -20

Next, divide -4 from both sides of the equation:

(-4x)/-4 = (-20)/-4

x = -20/-4

x = 5

5 is your answer.

Check:

Plug in 5 for x in both given expressions:

4x - 4

4(5) - 4

= 20 - 4

= 16

-

8x - 24

8(5) - 24

= 40 - 24

= 16

~

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Answer:

m+10

Step-by-step explanation:

We know that yesterday, eric had m baseball cards. Thus, we can denote that the total number of baseball cards he had yesterday is m.

We know that he got 10 more today. Since he is receiving more, he is adding to his collection. Since he is getting more, we have to add 10 to how many baseball cards he used to have. He used to have m baseball cards, so today he has m+10 baseball cards.

This is the answer as we cannot combine 10 and m. Since m is a variable with no set value as of now, and 10 is a constant number that has no variable, they are not like terms and cannot be added. So the answer is m+10 baseball cards.

I hope this helped.

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Answer:

18

Step-by-step explanation:

y-3=15

+3 +3

if you add 3 to the other side, you would get:

y=18

Answer:

The answer is 64 ounces.

Answer:

64 ounces

Step-by-step explanation:

1 pound = 16 ounces

4 * 16 = 64

Answer:

19.1

Step-by-step explanation:

Therefore, the probability that a randomly-chosen adult person who tests positive is using the drug is approximately 0.397, or 39.7%.

The probability that a randomly-chosen adult person who tests positive is using the drug can be determined using Bayes' theorem.

Let's break down the information given in the question:
- The sensitivity of the drug test is 0.6, meaning that it correctly identifies 60% of the people who are actually using the drug.
- The specificity of the drug test is 0.91, indicating that it correctly identifies 91% of the people who are not using the drug.

- The prevalence of drug use in the adult population is 5%.

To calculate the probability that a person who tests positive is actually using the drug, we need to use Bayes' theorem.

The formula for Bayes' theorem is as follows:
Probability of using the drug given a positive test result = (Probability of a positive test result given drug use * Prevalence of drug use) / (Probability of a positive test result given drug use * Prevalence of drug use + Probability of a positive test result given no drug use * Complement of prevalence of drug use)

Substituting the values into the formula:
Probability of using the drug given a positive test result = (0.6 * 0.05) / (0.6 * 0.05 + (1 - 0.91) * (1 - 0.05))

Simplifying the equation:
Probability of using the drug given a positive test result = 0.03 / (0.03 + 0.0455)

Calculating the final probability:
Probability of using the drug given a positive test result ≈ 0.397

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(a) The probability that an American chosen at random has traveled to either Canada or Mexico is 0.5 or 50%.Thus, option (a) is correct.

We know that the probability of the event that a U.S. resident has traveled to either Canada or Mexico is P(C∪M). But we know that P(C∪M) = P(C) + P(M) - P(C∩M)

P(C∪M) = 0.3 + 0.4 - 0.2

P(C∪M) = 0.5

(b) The probability that an American chosen at random has neither traveled to Canada nor Mexico is 0.5 or 50%.Thus, option (b) is correct.

We are to find the probability that an American chosen at random has neither traveled to Canada nor Mexico. This is the complement of the event that a U.S. resident has traveled to either Canada or Mexico.

The probability of the event that a U.S. resident has neither traveled to Canada nor Mexico is:P(Not C∪M) = 1 - P(C∪M)

P(Not C∪M) = 1 - 0.5 = 0.5

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Answer: 18/1

Step-by-step explanation:

13 + 4 = 17

1/4 + 3/4 = 1

17 + 1 = 18

Answer:

18

Step-by-step explanation:

13 1/4= 13.25 and 4 3/4=4.75. 13.25+4.75=18

Hope this helped!

\(▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)

Let the number of toys Julie has be x

now, the expression representing the number of toys that Harriet have is :

Answer:

3j + 5

Step-by-step explanation:

julie = j

so ur expression would be

3j + 5

brainliest?

Answer:

the answer is y = 1/2 x + 4

Step-by-step explanation:

I really don't know if it was -4 but if it was negative four you put -4 so hopefully this help

Answer:

lower graph

Step-by-step explanation:

• Odd degree , positive leading coefficient

Then end behaviour is

As x → - ∞ then y → - ∞

As x → + ∞ , then y → + ∞

The graph also has roots at x = - 4, x = - 1 and x = 5

These features are displayed in the lower graph

The graph of the function is shown in second graph.

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;

A polynomial function has a root of -4 with multiplicity 4, a root of -1 with multiplicity 3, and a root of 5 with multiplicity 6.

Hence, Condition is, Odd degree and positive leading coefficient

Then end behavior is,

As x → - ∞ then y → - ∞

As x → + ∞ , then y → + ∞

Here, The graph also has roots at x = - 4, x = - 1 and x = 5

Hence, All of the above is shown in second graph.

Thus, Second graph is correct.

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Answer:

9 ÷ 1504 = 0 R 9

0.00598404255

Step-by-step explanation:

Shown above is remainder form and decimal form...

The statement "when conducting a two-tailed test for the population proportion "p," we reject the null hypothesis if the hypothesized value falls outside the confidence interval" is false because confidence interval provides a range of plausible values for the population proportion.

A confidence interval provides a range of plausible values for the population proportion "p" based on the sample data. It quantifies the uncertainty associated with estimating the true proportion. Typically, a 95% confidence interval is used, which means that if we were to repeat the sampling process multiple times, we would expect 95% of the confidence intervals to contain the true population proportion.

When conducting a two-tailed test, we reject the null hypothesis if the hypothesized value (in this case, 0.5) falls outside the confidence interval. In other words, if the hypothesized value is not within the range of plausible values for the population proportion based on the confidence interval, we reject the null hypothesis.

The reason behind this is that if the hypothesized value falls within the confidence interval, it implies that the null hypothesis is still plausible. On the other hand, if the hypothesized value falls outside the confidence interval, it suggests that the null hypothesis is unlikely to be true, and we have evidence to support the alternative hypothesis.

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Answer:

y=-93

Step-by-step explanation:

You just substitute 10 for x

y=-7(10)-23

y=-70-23

y=-93

Based on the complete question, the Normal Distribution Graph will resemble the one in the figure attached.  

Also, note that using the 68-95-99.7 rule, the proportion of runners between 48.7 and 67.9 kg is 0.8385.

The 68-95-99.7 rule, also known as the empirical rule, is a statistician's shorthand for remembering the percentage of values in a normal distribution that fits within an interval estimate: 68%, 95%, and 99.7% of the variables lie within one, two, and three standard deviations of the mean, correspondingly.

To compute the proportion of runners whose body weight is between 48.7 and 67.9 kg with the help of the 68-95-99.7 rule:

We know given that:

The mean = 63.1 and

the standard deviation (SD) = 4.8.

Where the weight is 67.9kg, we know that the distance between this and the mean is 4.8, that is;

67.9 - mean

= 67.9 - 63.1

= 4.8 [1*SD]

In the same way,
48.7 corresponds to 48.7-63.1 = -14.4 [ -3*SD]

Hence, based on the rule,

= 83.85%

= 0.8385.

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Full Question:

A study of elite distance runners found a mean body weight of 63.1 Kilograms (kg), with a standard deviation of 4.8kg.

The angles in the given figure are:

a. Vertical angles: angle 3 and angle 5.

b. Adjacent angles: angle 1, angle 2, angle 3, angle 4, and angle 5.

c. Linear pairs: angle 3 and angle 4, angle 4 and angle 5.

d. Supplementary angles: angle 4 and angle 5.

e. Complementary angles: angle 1 and angle 2.

We are given a figure and we need to identify the angle.

Let us identify the angle:

a. Vertical angles:

Each of the pairs of opposite angles is made by two intersecting lines.

In the given figure,

angle 3 and angle 5 are vertical angles.

b. Adjacent angles:

In the given figure,

angle 1, angle 2, angle 3, angle 4, and angle 5.

c. Linear pairs:

The sum of the two angles should be 180 degrees.

In the given figure,

angle 3 and angle 4, angle 4 and angle 5.

d. Supplementary angles:

The sum of the two angles should be 180 degrees.

In the given figure,

angle 4 and angle 5.

e. Complementary angles:

The sum of the two angles should be 90 degrees.

In the given figure,

angle 1 and angle 2.

Thus, the angles in the given figure are:

a. Vertical angles: angle 3 and angle 5.

b. Adjacent angles: angle 1, angle 2, angle 3, angle 4, and angle 5.

c. Linear pairs: angle 3 and angle 4, angle 4 and angle 5.

d. Supplementary angles: angle 4 and angle 5.

e. Complementary angles: angle 1 and angle 2.

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