5 tan x -3 = 1 solve this equation for 0° ≤ x ≤ 360° make a sketch of the graph and indicate all the solutions. ​

Answer:

I know it

Step-by-step explanation: Btw did somone already answer this?

a. The mean stock price of Cenovus Energy is 15.437.

b. The standard deviation for the sample prices of Cenovus Energy is

3.93.

c. The median stock price for Cenovus Energy is 14

d.  The range in Cenovus Energy's stock price is 11.5.

e. The coefficient of variation for each stock are 28.071% Cenovus Energy for % and 9% for TD Bank.

f. As the coefficient of variation is more for TD Bank it is riskier to buy.

The standard deviation is a statistic that expresses how much variance or dispersion there is in a group of numbers. While a high standard deviation suggests that the values are dispersed over a wider range, a low standard deviation suggests that the values tend to be close to the mean.

a. The mean stock price of Cenovus Energy is,

= (18 + 19 + 12 + 16 + 17.50 + 12 + 7.50 + 10)/8.

= 112/8.

= 14.

b. The variance for the sample prices of Cenovus Energy is,

= [tex]\frac{1}{n}\[ \sum_{i=1}^{n}[x_i - \overline{x}]^2[/tex].

= (1/8)×[(18 - 14)² + (19 - 14)² + (14 - 12)² + (16 - 14)² +(17.50 - 14)² +(14 - 12)² +(14 - 7.50)² + (14 - 7.50)² +(14 - 10)²].

= (1/8)×[16 + 25 + 4 + 4 + 12.25 + 4 + 42.25 + 16].

= (1/8)×(123.5).

= 15.437.

Standard deviation = √(15.437).

= 3.93.

c. To find the median stock price for Cenovus Energy first we have the data set in ascending order.

7.50, 10.00, 12.00, 12.00, 16.00, 17.50, 18.00, 19.00.

So, The median of the stock price for Cenovus Energy is,

= (12 + 16)/2.

= 28/2.

= 14.

d. The range in Cenovus Energy's stock price is (19.00 - 7.50).

= 11.5.

e. The coefficient of variation for each stock is,

CV = {(Standard Deviation)/(Mean)}×100%.

CV = (3.93/14)×100%.

CV = 28.071 for Cenovus Energy.

CV = (6.30/70)×100%.

CV = 9% for TD Bank.

f. TD Bank's higher coefficient of variance makes investing riskier.

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Answer: The interest rates charged in both formulas are different.

Step-by-step explanation:

To begin with, the simple interest = PRT/100

In this, the interest is the same as the number of years.

For example, P=10,000 R=10% T=2yrs

SI = PRT/100

    = 10,000*10*2/100

    = 2000

This rupee 2000 is the same interest for two years.

compound interest = A= P(1+r/100)^n

In this, the interest changes every year up to the period of time.

For example, P= 10,000 R=10% N=2yrs

A= 10,000(1+10/100)^2

  = 10,000*11/10*11/10

   = 12100

I= A-P

 =12100-10000

 = 2100

This interest varies for 2 years.

The top of the hill have an altitude of 1391 feet above sea level

An equation is a expression that shows the relationship between numbers and variables.

The standard form of a linear equation is:

y = mx + b

Where m is the rate of change and b is the y intercept

From the table, checkpoint 3 is at 1327 feet above sea level. Since the top of a hill rises 64 feet above checkpoint 3, hence:

Altitude of hill = 1327 + 64 = 1391 feet

The top of the hill is 1391 feet

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Answer:

[tex]\textsf{A)} \quad 5+3\sqrt{2}[/tex]

Step-by-step explanation:

Given rational expression:

[tex]\dfrac{4+\sqrt{2}}{2 -\sqrt{2}}[/tex]

To rationalise the denominator, multiply both the numerator and denominator by the conjugate of the denominator.

The conjugate of an expression is where we change the sign in the middle of the two terms.  Therefore, the conjugate of the denominator of the given expression is:

Multiply the numerator and denominator by the conjugate of the denominator:

[tex]\implies \dfrac{4+\sqrt{2}}{2 -\sqrt{2}} \cdot \dfrac{2 +\sqrt{2}}{2 +\sqrt{2}}[/tex]

Simplify:

[tex]\implies \dfrac{(4+\sqrt{2})(2 +\sqrt{2})}{(2 -\sqrt{2})(2 +\sqrt{2})}[/tex]

[tex]\implies \dfrac{8+4\sqrt{2}+2\sqrt{2}+\sqrt{2}\sqrt{2}}{4+2\sqrt{2}-2\sqrt{2}-\sqrt{2}\sqrt{2}}[/tex]

[tex]\implies \dfrac{8+6\sqrt{2}+2}{4-2}[/tex]

[tex]\implies \dfrac{10+6\sqrt{2}}{2}[/tex]

Reduce to its simplest form by dividing the numerator and the denominator by 2:

[tex]\implies 5+3\sqrt{2}[/tex]

Answer:

We know that the ratio of female students to the total number of students is 4 to 9.

That means that for every 4 female students, there are 9 students in total.

So, we can set up the proportion:

4/9 = x/264

where x is the total number of students.

Solving for x, we get:

x = (4/9)*264 = 96

Since the ratio of teachers to students is 1 to 11, then for every 11 students there is 1 teacher, we can set up the proportion:

1/11 = y/96

where y is the total number of teachers.

Solving for y, we get:

y = (1/11)*96 = 8.72 ≈ 8

So, there are 8 teachers in the college.

Step-by-step explanation:

The one-digit integers that satisfy the inequality k>0 are 1, 2, 3, 4, 5, 6, 7, 8, and 9.

A number line in elementary mathematics is a representation of a graduated straight line that serves as an abstraction for real numbers, represented by the symbol R."

It is assumed that every point on a number line corresponds to a real number and that every real number corresponds to a point.

A number is a line that is made up of positive and negative numbers with the distance between the preceding and succeeding unit to be 1.

The negative values on the number line are -1, -2, -3...-9 while the value greater than zero are 1, 2, 3, 4,...9

Hence the one-digit integers that satisfy the inequality k>0 are 1, 2, 3, 4, 5, 6, 7, 8, and 9.

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The expression 4√72 can be simplified by first taking the square root of both sides, which gives us 2√72. Then, we can factor out a 6 from both sides, which gives us 24√6. Therefore, the simplified expression is 24√6.

Expression is the process of conveying one’s thoughts, emotions, ideas, and beliefs through speech, writing, art, or any other form of communication. Expression is a form of communication that allows people to express themselves in a way that is meaningful and personal to them. It is a powerful way for individuals to express their thoughts, feelings, and opinions without fear of judgement or criticism. Expression is an important part of self-expression, and it can be used to connect with others through shared experiences, to create a sense of community, and to grow and learn from one another. Expression is an invaluable tool for self-expression, creativity, and communication.

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Answer:

c.

Step-by-step explanation:

that is easy.

a matrix multiplied by a constant is multiplying every element in the matrix by that constant.

and subtracting a matrix from another is subtracting the elements on each position.

it is a simile as that.

for that reason I only need to look at the first, top left element to determine the correct answer :

-1×2 - 4×7 = -2 - 28 = -30

so, c. is the right answer.

the calculation in full :

2A =

-2 18 4

20 -20 4

-10 12 -10

4B =

28 -4 -4

24 -16 -12

-40 40 -28

so, 2A - 4B =

-30 22 8

-4 -4 16

30 -28 18

The total number of relations in the set s = {1,2,3} is given as follows:

9.

The total number of relations in a set is given by the cardinality of the square of the set.

The square of a set is composed by all the possible pairs that can be formed with the elements in the set.

The set for this problem is defined as follows:

s = {1, 2, 3}.

The set has a cardinality of 3, as it has 3 elements, hence the cardinality of the square of the set is given as follows:

3² = 9.

Which is the total number of relations in the set.

These relations are all the ordered pairs with elements of s, hence:

Relations = {(1,1), (1,2), (1,3), (2,1), (2,2), (2,3), (3,1), (3,2), (3,3)}

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Answer:

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

Use the compound interest formula:

Where A - future amount, P - invested amount, r- annual interest rate, n - number of compounds a year, t - number of years

Given:

Substitute known values and solve for P:

Step-by-step explanation:

x = number of deluxe staterooms on Pacific.

deluxe staterooms on Caribbean = x + 16

deluxe staterooms on Mediterranean = 4x - 28

1176 = x + (x + 16) + (4x - 28) = 6x - 12

1188 = 6x

x = 1188/6 = 198

so,

Pacific has 198 luxury staterooms.

Caribbean has 198 + 16 = 214 luxury staterooms.

Mediterranean has 4×198 - 28 = 792 - 28 = 764 luxury staterooms.

Answer:

1

Step-by-step explanation:

(-1,2) and (2,6)

d=√[2-(-1)] ^+ [2-6]^

d=√3+(-4)^

d=√-1^

d=1

Answer: C

Step-by-step explanation:

10000(1+0.10)³
=10000(1.10)³
=10000*1.331
=13310

The surface area of the square pyramid is 224 ft²

An equation is an expression composed of variables and numbers linked together by mathematical operations.

Surface area is the total area occupied by the surface of the object. It is gotten by summing the individual area of each surface.

For the pyramid:

Surface area = 4 * area of triangle + Area of square base

Substituting gives:

Surface area = (8 ft * 8 ft) + 4(1/2 * 8ft * 10 ft) = 224 ft²

The surface area is 224 ft²

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Answer:

Step-by-step explanation:

What is the surface area?

5 cm

6 cm

5 cm

6 cm

4 cm

square centimeters

Answer:

[tex]\sqrt{6}[/tex]

Step-by-step explanation:

In a 45-45-90 triangle to find the two shorter sides (a and b) are represented as the number n in this case n is [tex]\sqrt{3\\[/tex] . The hypotenuse on the other hand is can be found by doing n[tex]\sqrt{2\\}[/tex] so you multiply [tex]\sqrt{3}(\sqrt{2} )[/tex] to get [tex]\sqrt{6}[/tex]

Answer:

5x=33y,4x=21y I hope this is helpful

The value of the expression is (x∧2m-15)Yy∧5n +1). Option B

You should understand that simplification involves making an expression more simpler to understand. Also, the expression is in index form that involves the division law of indices.

the given expression to be simplified is

(x∧3m-8)/x∧m-7) (y∧7n +1)/(y∧2n)

This can be simplifies as follows

(x∧3m-8-(m-7)(y∧7n+1(2n)

Simplify further to have the value

(x∧3n-8-m-7)(y∧7m-2n+1)

This implies that the value is

(∧2m-15)(y2n+1)

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Answer: We know that in a triangle, the sum of the lengths of any two sides must be greater than the length of the third side.

Using the triangle inequality theorem, we can set up the following inequality:

BD + BC > CD

7x - 10 + 4x - 29 > 5x - 9

Simplifying, we get:

11x - 39 > 5x - 9

Subtracting 5x from both sides, we get:

6x - 39 > -9

Adding 39 to both sides, we get:

6x > 30

Dividing by 6 from both sides, we get:

x > 5

So x must be greater than 5.

To find the value of BD, we can substitute the value of x in the equation:

BD = 7x - 10

BD = 7(5) - 10 = 25 - 10 = 15

To find the value of BC, we can substitute the value of x in the equation:

BC = 4x - 29

BC = 4(5) - 29 = 20 - 29 = -9

To find the value of CD, we can substitute the value of x in the equation:

CD = 5x - 9

CD = 5(5) - 9 = 25 - 9 = 16

So, BD = 15, BC = -9, CD = 16

Step-by-step explanation:

The expression √5x × √30x is simplified using the product rule to give 12.25x

Square root of a number can be defined as the inverse operation of the square of a number.

It is the number obtained by finding a number that when squared would give the original number.

Square root is represented using the symbol '√ '. The symbol is called a radical.

Also, the number under the symbol is called the radicand.

To multiply two square roots, we have to multiply the radicands and leave the radical sign.

From the information given, we have;

√5x × √30x

Multiply the radicands and retain the square root symbol, we have;

√150x²

Find the square root

12.25x

Hence, the value is 12.25x

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The required it would take 6 years for the amount to be 2000000.

Simple interest is a quick and simple formula for figuring out how much interest will be charged on a loan.

here,

Celestine invested 1500000 simple interest at a rate of 5% per annum which amounted to 2000000.

Amount = 20,000,00
Principal = 15,000,00
Rate = 5% = 0.05

Time =  n years

Amount  = Principal [1 + rate×time]
20,000,00 = 15,000,00 [1 + 0.05×n]
n = 6.6 years

Thus, the required, it would take 6 years for the amount to be 2000000.

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Answer:

a) Yes

The experienced person costs more per hour, but also increases sales per customer. To determine if it is more cost-effective to hire the experienced person, you would need to calculate the net gain or loss from hiring them.

You can do this by multiplying the increase in sales per customer by the number of customers per hour, and comparing that to the difference in hourly wages.

(12 customers/hour * $3/customer) - ($19/hour - $13/hour) = $36/hour - $6/hour = $30/hour

Since the net gain is positive, it is more cost-effective to hire the experienced person.

The ordered pairs are (1,3) , (2, -1) , (3,-5) , (4,-9)

The solution of a linear equation is defined as the points, in which the lines represent the intersection of two linear equations. In other words, the solution set of the system of linear equations is the set of all possible values to the variables that satisfies the given linear equation.

Given here: The equation as 4y+16x=28 or y+4x=7

putting (1,3) in the equation we get 3+4×1=7

Similarly we can find the ordered pair as (2, -1) , (3,-5) , (4,-9)

Hence, The ordered pairs are (1,3) , (2, -1) , (3,-5) , (4,-9)

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Answer:

Angle A is 66°

Step-by-step explanation:

< b  is equal to 57 because the opposite side lengths are equal.

The sum of the interior angles of a triangle is 180

180 - 57 - 57 = 66

Answer:

Step-by-step explanation:

200 x 115.5/8 = $23,100.00

The process of arriving at an approximate answer to a computation such as 0.79 × 403 is called estimation.

Having an approximate estimate of something's worth, number, size, or extent is referred to as estimation in mathematics. When we are willing to accept a response that is extremely near to the true result, we utilize estimates of numbers to make mental computations simpler and faster.

The computation is approximate, or the number is rounded to the nearest place value.

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Answer:

Step-by-step explanation:

Elimination is a method of solving a system of equations by adding or subtracting the equations from each other to eliminate one of the variables.

In this case, we will be using elimination to solve the system of equations:

-3x + 12y = 9

x - 4y = -3

Step 1: Multiply the first equation by -1.

(Multiplying by -1 switches the sign of every number in the equation)

3x - 12y = -9

Step 2: Add the two equations together.

3x - 12y = -9

+x - 4y = -3

______________

4x - 16y = -12

Step 3: Isolate the y-variable by adding 16y to both sides of the equation.

4x - 16y = -12

+16y +16y

______________

4x = -12 + 16y

Step 4: Divide both sides of the equation by 4 to isolate the y-variable.

4x = -12 + 16y

4/4 4/4

______________

x = -3 + 4y

Therefore, the solution to the system of equations is x = -3 + 4y.

Answer:

Step-by-step explanation:

2424242424242424hhj

Answer:

expanded from:4d²-20de-25e²