PLEASE HELP URGENTLY

Answer:

Approximately 87 minutes

Step-by-step explanation:

So first see how much of the reading 41 minutes is. It is 47%.

So now to find out how much 100% is, first find out how much 1% is.

Just divide by 47.

1% = \(\frac{41}{47}\)

And then multiply by 100 to get 100%

\(\frac{4100}{47}\)

That is 87.2340425532

Which is 87

The answer would be

A.) ~-12~

because 2-24=-22 -22+8+2=-12  

B.)~16~

because 6+8-8+10 and -8+8=0 so 6+10=16

Hope this helps

Have a great day/night

Feel free to ask any questions

Answer:

Step-by-step explanation:

Known fact:

The perimeter is all the sides added together and thus lets set all the side's length in terms of b

(b-2) + b+3b = 42

5b -2 = 42

b = 8

Thus:

a = b-2 = 6

b = 8

c = 3b = 24

Hope that helps!

Step-by-step explanation:

radius=diameter/2

r = 6/2 m

=3m

volume of sphere=4/3πr³

= 4/3π×(3)³

=36π m³

\( - 1 - 2(9) = - 1 - 18 = - 19\)

The algebraic expression of the statement is 2n - 7 = 9

The mathematical statement is given as;

The Difference of twice a number(n) and 7 is 9

Twice a number n means 2n

So, we have

The Difference of 2n and 7 is 9

Difference means minus

So, we have

2n - 7 = 9

Hence, the algebraic expression of the statement is 2n - 7 = 9

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Answer:

No, the triangles are not similar.

Step-by-step explanation:

For ΔNOP, since all triangles' angles equal 180°, to find the missing angle you subtract the given angles from 180

180-70=110, 110-58=52       ∠N = 52°

since ΔQRS does not have any angle measures of 58° or 52°, the triangles are not similar becasue similar triangles have congruent angles.

(b) 734.0 ft-lbs of work is done.

To find the work done by the force, we need to use the formula:

Work = force x distance x cos(θ)

where:

force = 56 pounds (the given constant force)

distance = 16 feet (the distance the door is being pulled)

θ = 35 degrees (the angle between the force and the displacement of the door)

We need to convert the angle to radians to use it in the formula:

theta = 35 degrees x (pi/180) = 0.6109 radians

Now we can substitute the values into the formula:

Work = 56 pounds x 16 feet x cos(0.6109 radians)

Work = 734.0 ft-lbs (rounded to one decimal place)

Therefore, the answer is (b) 734.0 ft-lbs.

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Two of the solutions of the equation cos(x/2) = -(sqrt2/2) are 135 degrees and 225 degrees (or 3π/4 radians and 5π/4 radians).

Two of the solutions of the equation cos(x/2) = -(sqrt2/2) can be found by considering the unit circle and the properties of cosine.

Since the cosine function represents the x-coordinate of a point on the unit circle, we can look for the angles where the x-coordinate is -(sqrt2/2).

One such angle is 135 degrees (or 3π/4 radians), where the cosine is equal to -(sqrt2/2). At this angle, the x-coordinate of the corresponding point on the unit circle is -(sqrt2/2).

Another angle with the same x-coordinate is 225 degrees (or 5π/4 radians). At this angle, the cosine is also equal to -(sqrt2/2).

Two of the solutions of the equation cos(x/2) = -(sqrt2/2) are 135 degrees and 225 degrees (or 3π/4 radians and 5π/4 radians). These angles satisfy the given equation and have the desired x-coordinate on the unit circle.

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The answer of the given question based on the  an equation to predict the number of seats in any row the answer is , there are 86 seats in the 20th row.

Probability is  measure of the likelihood of  event occurring. It is expressed as  number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. The probability of an event can be calculated by dividing  number of favorable outcomes by the total number of possible outcomes.

To create an equation to predict the number of seats in any row, we can use the following steps:

Let x be the number of rows, and let y be the number of seats in the row.

Then, we can use the given information to set up the equation:

y = 10 + 4(x-1)

The first row has 10 seats, and each subsequent row has 4 more seats than the previous row. (x-1) is used to adjust for the fact that we start counting rows from 1, not 0.

To find the number of seats in row 20, we can substitute x = 20 into the equation and simplify:

y = 10 + 4(20-1)

y = 10 + 4(19)

y = 10 + 76

y = 86

Therefore, there are 86 seats in the 20th row.

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The evaluated complex number in rectangular form is (6cos(300) - 3) + (6sin(300) + j5).

To evaluate the complex number 6 e/300 + j5 - 3 + 450 in rectangular form, we need to convert it from polar form to rectangular form.

The polar form of a complex number is given by r e^(jθ), where r is the magnitude and θ is the angle in radians. In this case, we have:

r = 6
θ = 300 degrees = (5π/6) radians

Using Euler's formula e^(jθ) = cos(θ) + j sin(θ), we can write:

6 e^(j300) = 6 (cos(5π/6) + j sin(5π/6))

= 6 (-1/2 + j √3/2)

= -3 + j3√3

Now we can add this to the real number -3 + 450, to get:

-3 + j3√3 + (-3 + 450)

= 444 + j3√3

Therefore, the rectangular form of the complex number 6 e/300 + j5 - 3 + 450 is 444 + j3√3.

To evaluate the complex number in rectangular form, given the expression 6e^(300) + j5 - 3 + 450, follow these steps:

1. Convert the exponential form (6e^(300)) to rectangular form.
2. Combine the real parts and imaginary parts.

Step 1: Converting exponential form to rectangular form:
6e^(300) = 6(cos(300) + jsin(300))

Step 2: Combining real and imaginary parts:
Real part: 6cos(300) - 3
Imaginary part: 6sin(300) + j5

So, the evaluated complex number in rectangular form is (6cos(300) - 3) + (6sin(300) + j5).

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Answer:

f(0) =   0

f(-2) =  1

Step-by-step explanation:

f(0) means the value of f when x = 0.  The line is the result of equation f for all points shown on the graph.  Look for the values at x = 0 and x = -2.

They are (0.0) and (-2,1).  This can be written as:

f(0) =   0

f(-2) =  1

Answer:

-7

Step-by-step explanation:

If you use -7 the LHS will get cancelled.

x + 7 = 19

or, x + 7 - 7 = 19 - 7

or, x = 12

The midline of the given graphed function for the y-coordinate is equal to y = 0.

The midline of a set of functions, you need to determine the average of their highest and lowest points.

For the functions represented in the graph,

y = 0.5.

The highest point is 0.5 for the graph.

y = -0.5

The lowest point is-0.5.

The midline of the set of functions is the average of their highest and lowest points.

Midline represented by a horizontal line.

Midline is the line that exactly passes through the midpoint of the highest and the lowest point.

Here on y-axis we have ,

Highest coordinate = 0.5

Lowest coordinate = -0.5

Midline point = ( highest point + lowest point ) / 2

Substitute the value we get,

⇒midline point = ( 0.5 + (-0.5))/ 2

⇒midline point = 0 /2

⇒midline point = 0

Therefore, the midline of the function of the graph is y = 0.

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Answer:

Anita's monthly bill will be $164.25.

Step-by-step explanation:

Since Anita has a cellphone contract that costs her R100 per month plus 85 cents per peak time SMS, and 25 cents per off-peak time SMS, if she sends 45 SMSs during peak time and 105 SMSs during off-peak time In a month To determine what will her monthly bill come to, the following calculation must be performed:

100 + (0.85 x 45) + (0.25 x 105) = X

100 + 38.25 + 26.25 = X

138.25 + 26.25 = X

164.25 = X

Therefore, her monthly bill will be $ 164.25.

Answer:

  c

Step-by-step explanation:

Work out the composition and see what you get.

  \((f\circ g)(x)=f(g(x))=f(7x+10)=\dfrac{(7x+10)-10}{7}=\dfrac{7x}{7}=x\)

This is your first clue that the functions are inverses of each other, so we expect that g(f(x)) = x will be true, too. We can work that out to confirm it.

  \((g\circ f)(x)=g(f(x))=g\left(\dfrac{x-10}{7}\right)=7\left(\dfrac{x-10}{7}\right)+10\\\\=(x-10)+10=x\)

So, the appropriate choice is as shown below.

Your teacher may want you to erase the comma when inputting your answer.

============================================================

Explanation:

Circle the digit in the hundreds place value, which is the digit 8. The next digit over is 2. This "2" is not five or larger, so we erase the "21" and replace it with "00".

The number 46,821 rounds to 46,800 which is the final answer.

Effectively, all we're doing is rounding the 821 to 800 and then sticking "46" in front. Notice how 821 is closer to 800 than it is to 900. So that's why we didn't round up to 46,900.

The minimum wage set by the government at $7.50 per hour does not result in a pay cut for unskilled workers, as it is below the equilibrium wage of $8.00 per hour.

The wage rate remains unchanged, and the labor market remains in balance.

The statement is false.

False.

The equilibrium wage in the market for unskilled labor is $8.00 per hour, which means that the market naturally sets the wage rate at this level, based on the forces of supply and demand.

The government then sets a minimum wage at $7.50 per hour.

Since the minimum wage is below the equilibrium wage, it does not directly impact the wage rate for unskilled workers.
The equilibrium wage represents the point at which the supply of labor (the number of workers willing to work at a given wage) equals the demand for labor (the number of workers that employers are willing to hire at a given wage).

In this case, both workers and employers are satisfied with the $8.00 per hour wage, and the labor market is balanced.
The government sets a minimum wage below the equilibrium wage, it essentially sets a wage floor that is not binding. Employers are still willing to pay the equilibrium wage of $8.00 per hour, and workers are still willing to accept this wage.

The wage for unskilled workers remains at $8.00 per hour, and there is no pay cut of 50 cents per hour.

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The projections for the number of phones sold in hundreds for the battery-efficient phone for weeks 1 to 5 are 4.5, 6, 7.5, 9, and 10.5, respectively.

In mathematics, a function is a rule that takes an input (or inputs) and produces a corresponding output. It is a relation between a set of inputs and a set of possible outputs with the property that each input is related to exactly one output. The input is often called the "argument" of the function, and the output is the "value" of the function for that argument. Functions are widely used in mathematics, science, engineering, and other fields to model relationships between variables and to solve problems. They are typically represented using algebraic or graphical notation, and can be evaluated for specific inputs or used to derive general properties and relationships.

Here,

Using the given functions f(x) and g(z), we can determine the projected sales for each phone model for each week.

For the economically-priced phone (f(x)), the projection is:

Week 1 (x = 1): f(1) = 3(1) + 5 = 8 hundred phones

Week 2 (x = 2): f(2) = 3(2) + 5 = 11 hundred phones

Week 3 (x = 3): f(3) = 3(3) + 5 = 14 hundred phones

Week 4 (x = 4): f(4) = 3(4) + 5 = 17 hundred phones

Week 5 (x = 5): f(5) = 3(5) + 5 = 20 hundred phones

For the battery-efficient phone (g(z)), the projection is:

Week 1 (z = 1): g(1) = (1.5) + 3 = 4.5 hundred phones

Week 2 (z = 2): g(2) = (1.5)(2) + 3 = 6 hundred phones

Week 3 (z = 3): g(3) = (1.5)(3) + 3 = 7.5 hundred phones

Week 4 (z = 4): g(4) = (1.5)(4) + 3 = 9 hundred phones

Week 5 (z = 5): g(5) = (1.5)(5) + 3 = 10.5 hundred phones

Therefore, the projections for the number of phones sold in hundreds for the economically-priced phone for weeks 1 to 5 are 8, 11, 14, 17, and 20, respectively.

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Answer:

C, you got it :)

Step-by-step explanation:

it shifts it down one as long as it is outside the absolute value bars, if its inside like |x-1| it would shift it to the right 1

hope this helps

Answer:

C

Step-by-step explanation:

The Random Variable that should be considered continuous is "The time it takes for a randomly chosen athlete to run 200 meters" , the correct option is (c) .

In the question ,

four random variables are given , we have to select the random variable that is continuous .

A Continuous Random Variable is a random variable X , which can take any value in its domain or in an interval or the union of intervals on the real line is called Continuous random variable .

For Example : weight of middle aged people lying between 40 Kg and 150 Kg .

From the given options ,

the option (c) , the time taken for a randomly chosen athlete to run 200 meters is a interval of time ,

So ,it is can be called as Continuous Random Variable .

Therefore , the option that represents Continuous Random Variable is option(c) .

The given question is incomplete , the complete question is

Which of the following random variables should be considered continuous ? Select one:

(a) The number of cars owned by a randomly chosen adult male

(b) The number of orders received by a mail-order company in a randomly chosen week

(c) The time it takes for a randomly chosen athlete to run 200 meters  

(d) The numbers of brothers a randomly chosen person has .

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You should invest approximately 4,225.95 initially to have 12,000 after nine years at an annual interest rate of 11% compounded continuously.

The formula for the future value of an investment with continuous compounding is:

\(FV = PV \times e^{(r\times t)\)

where PV is the present value (initial investment), r is the annual interest rate in decimal form, t is the time period in years, and e is the mathematical constant approximately equal to 2.71828.

In this problem, we want to find PV, so we can rearrange the formula to solve for it:

\(PV = FV / e^{(r\times t)\)

Substituting the given values:

\(PV = 12000 / e^{(0.11 \times 9)\)

Using a calculator:

PV ≈ 4225.95

Therefore, you should invest approximately 4,225.95 initially to have 12,000 after nine years at an annual interest rate of 11% compounded continuously.

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Answer:

x=1  y=7

Step-by-step explanation:

−5x+2y=9

y=7x

Substitute the second equation into the first

-5x +2(7x) = 9

Distribute

-5x +14x = 9

Combine like terms

9x=9

Divide by 9

9x/9 =9/9

x= 1

Now find y

y = 7(1)

y = 7

Answer:

\(x=1\\y=7\)

Step-by-step explanation:

\(-5x+2y=9\\y=7x\)

Replace y in the first equation.

\(-5x+2(7x)=9\)

Distribute the 2 and combine like terms;

\(-5x+14x=9\\9x=9\)

Divide by 9

\(x=\frac{9}{9}\\ x=1\)

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

After having found x, you can replace it in any of the equations to find y. I'll use the second equation.

\(y=7x\\y=7(1)\\y=7\)

The percent increase for the given cost is 40%.

To determine percent change, use the formula percent change = (new value - old value) / old value * 100%.

The percentage increase or decrease between two numbers is determined using this formula. To calculate the percentage change, subtract the old value from the new value, divide the result by the old value, and then multiply the result by 100.

The percent change is given by the formula:

percent change = (new value - old value) / old value * 100%

Substituting the cost we have:

percent change = (126 - 90) / 90 * 100%

percent change = 36 / 90 * 100%

percent change = 0.4 * 100%

percent change = 40%

Hence, the percent increase for the given cost is 40%.

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Answer:

d because none are right

Answer: A

Step-by-step explanation: 10x10=100