Segments and Angles again.. this is a struggle for me

The students who returned their signed envelopes were able to wear jeans on

Friday. If there are 580 7th graders, and 1/8 brought back their envelopes, how

many students were able to wear jeans on Friday?

we have that

Multiply 580 by 1/8

so

580(1/8)=72.5

therefore

the answer is

The length of the rectangular  playground is 241.86 foot.

Given that area of rectangle is 19,500 sq.ft and length of rectangle is three times its width.The area for rectangle is given by formula: A=LW.

Now according to the given condition, L= 3W. Further we'll solve by putting L= 3W in the formula for rectangle.

A=LW

As given A= 19,500 sq.ft and considering L=3W,

19,500 = 3W*W

19,500 = 3W^2

∴ W^2 = 6500

∴ W = \(\sqrt{6500}\)

∴ W = 80.6225 ft. ≈ 80.62 ft.

Now putting the value W = 80.62 in equation L =3W,

L = 3* 80.62

L = 241.86 ft.

The length of the rectangular playground is 241.86 foot.

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Answer:

174

Step-by-step explanation:

All 3 angles in a triangle add up to 180.

So we are given 2 angles and we need to find angle 3. I am going to call the missing 3rd angle 'x'.

1 + 5 + x = 180.

Solve for x

6 + x = 180

Subtract 6 from both sides

x = 174

Using trigonometric identities, it is found that the exact value of the secant of the angle is given by:

c. \(\sec{\theta} = - \sqrt{5}\)

According to the following identity:

\(\sec^2{\theta} = 1 + \tan^2{\theta}\)

The tangent is the inverse of the cotangent, hence in this problem, we have that:

\(\tan{\theta} = -2\)

Then, the secant is given as follows:

\(\sec^2{\theta} = 1 + (-2)^2\)

\(\sec^2{\theta} = 5\)

\(\sec{\theta} = \pm \sqrt{5}\)

The angle is in the second quadrant, where the cosine is negative, hence the secant also is and option c is correct, that is:

c. \(\sec{\theta} = - \sqrt{5}\)

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Answer:

The trigonometric functions include the following 6 functions: sine, cosine, tangent, cotangent, secant, and cosecant. For each of these functions, there is an inverse trigonometric function. The trigonometric functions can be defined using the unit circle.

Step-by-step explanation:

Shock advertisement are a type of advertising strategy that aims to provoke strong emotional responses from viewers by presenting controversial, shocking, or disturbing content.

An example of a shock add is Poking fun at events

By displaying content that is debatable, surprising, or upsetting, shock advertisement try to elicit strong emotional reactions from their target audience.

The goals of shock advertisements are to draw attention, leave a lasting impression, and elicit conversation about the good or message they are promoting.

These commercials frequently defy accepted norms, step outside of the box, and employ vivid imagery or provocative storytelling approaches.

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The amount of natural gas that homeowners can expect to use per month is influenced by various factors, including insulation levels and outdoor temperature.

However, without additional information or an established relationship between these factors, it is not possible to provide a precise estimate.

Insulation levels and outdoor temperature are just a few of the many factors that affect natural gas usage.

Other factors such as the size and efficiency of the heating system, the size and layout of the home, the insulation of walls and windows, and individual usage patterns can significantly impact gas consumption.

To obtain a more accurate estimate, it is recommended to consult energy professionals, utility companies, or use energy consumption calculators specifically designed for estimating natural gas usage based on multiple variables.

These tools take into account various factors to provide a more accurate estimation of monthly natural gas consumption.

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Answer:

Mandy sold 250 pancakes and 50 waffles.

Step-by-step explanation:

From the information given, you can say that the sum of pancakes and waffles is equal to 300:

x+y=300

Also, the statement indicates that she charges $3 per pancake, $1 per waffle, and made a total of $800 and you can express this as:

3x+y=800

You have the following equations:

x+y=300 (1)

3x+y=800 (2), where:

x is the number of pancakes she sold

y is the number of waffles she sold

Now, you can solve for x in (1):

x=300-y (3)

Then, you can replace (3) in (2):

3(300-y)+y=800

900-3y+y=800

900-800=2y

100=2y

y=100/2

y=50

Finally, you can replace the value of y in (3) to find x:

x=300-50

x=250

According to this, the answer is that Mandy sold 250 pancakes and 50 waffles.

Step-by-step explanation:

ABCD:-

CE=CF

Prove:y=x

y=x (x is opposite to y)

x=y

Hence,x=y and y=x.

Answer:

y = 2x - 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 2, then

y = 2x + c ← is the partial equation

To find c substitute (4, 3) into the partial equation

3 = 8 + c ⇒ c = 3 - 8 = - 5

y = 2x - 5 ← equation of line

Answer:

Hey mate...

Step-by-step explanation:

This is ur answer.....

The sum of the lengths of any two sides of a triangle must be greater than the third side. (a)(8,11,19)⇒8+11 not greater than 19 , (N.G.) (d)(13,4,8)⇒4+8<13 , (NG). Hence, option (b) is the only answer.

Hope it helps!

Brainliest pls!

Follow me! :)

Answer:

44460 times more probably

Step-by-step explanation:

by diving those two numbers

Answer:

the answer is D

Step-by-step explanation:

have a good day!

Answer:

A) x = 12

Step-by-step explanation:

4x-6 = 42

4 = 48

x = 12

7x+10 = 94

7x = 82

x = 12

Answer:

$1065.08

Step-by-step explanation:

Given the following from the question

Beginning balance = $742.05

Total deposits = $521 48

Credit amount in the bank= $742.05+$521 48

Credit amount in the bank = $1,263.53

Debits

Debit card payment = $158.45

Withdrawal on 10/5 = $40.0

Total debit = $198.45

Balance in Jackie's register = $1,263.53-$198.45

Balance in Jackie's register = $1065.08

Answer:

The answer actually is 927.54

Step-by-step explanation:

Answer:

82in

Step-by-step explanation:

brainliest?

A) Let the side length of the square base be x, and the height of the box be h. Then, the volume of the box is given by:

V = \(x^2\) * h = 8500

Solving for h, we get:

h = 8500 / \(x^2\)

The surface area of the box can be expressed as:

S = 2x^2 + 4xh

Substituting the value of h obtained above, we get:

S = \(2x^2\) + 4x(8500 / \(x^2\)) = 2\(x^2\)+ 34000 / x

Thus, the surface area of the box can be expressed as a function of x.

B) To graph the function, plot the surface area (S) on the y-axis and the side length of the square base (x) on the x-axis. Since x cannot be negative, the domain of the function is (0, infinity). As x gets very large or very small, the surface area approaches infinity, so we should only graph the function for values of x that make sense in the context of the problem.

C) The minimum amount of cardboard required to construct the box is equal to the surface area of the box. To find the minimum surface area, we need to find the minimum of the function S(x) obtained in part A.

D) To find the dimensions of the box that minimize the surface area, we need to find the value of x that minimizes the function S(x). We can do this by taking the derivative of S(x) with respect to x, setting it equal to zero, and solving for x. This gives us:

dS/dx = 4x - 34000/\(x^2\) = 0

Multiplying both sides by \(x^2\) and solving for x, we get:

x = (8500/2\()^(1/3)\) ≈ 18.3

Therefore, the dimensions of the box that minimize the surface area are a square base with side length of approximately 18.3 inches, and a height of:

h = 8500 / \(x^2\) ≈ 26.2 inches

E) UPS might be interested in designing a box that minimizes the surface area because it can reduce the amount of cardboard used in each box, resulting in cost savings and a reduced environmental impact. Additionally, minimizing the surface area of a box can make it more efficient to stack and transport, reducing shipping costs and making the overall process more sustainable.

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A) The Surface Area = \(X^2 + 34000/X\)

B) The y-axis and the side length X on the x-axis.

C) The minimum amount of cardboard required to construct the box is approximately 1649.39 square inches.

D) The dimensions of the box that minimize the surface area are X = 20.5 inches and Y = 16.87 inches.

E)  Smaller boxes take up less space in delivery trucks and planes, allowing more packages to be shipped at once and reducing transportation costs.

A) Express the surface area of the box as a function of X:

Let the side length of the square base be X and the height of the box be Y. Then, we know that the volume of the box is 8500 cubic inches, so:

\(X^{2Y} = 8500\)

To find the surface area of the box, we need to add up the area of each face. There are 5 faces in total (the bottom square and 4 identical rectangular sides), so:

Surface Area = \(X^2 + 4XY\)

We can substitute the value of Y from the equation for volume, giving:

Surface Area = \(X^2 + 4X(8500/X^2)\)

Surface Area = \(X^2 + 34000/X\)

B) Graph the function found in part a:

To graph this function, we can plot the surface area on the y-axis and the side length X on the x-axis. The graph will have a minimum value, which we can find using calculus or by using a graphing calculator.

C) What is the minimum amount of cardboard that can be used to construct the box:

The minimum amount of cardboard required to construct the box is the surface area of the box. To find this minimum value, we need to find the minimum point on the graph in part b. From the graph or by using calculus, we can see that the minimum occurs at X = sqrt(8500/5) = 20.5 inches. Substituting this value into the equation for surface area, we get:

Surface Area = \(20.5^2 + 4(20.5)(8500/20.5^2)\)= 1649.39 square inches

D) What are the dimensions of the box that minimize the surface area:

From part c, we know that the minimum occurs at X = sqrt(8500/5) = 20.5 inches. To find the height of the box, we can substitute this value of X into the equation for volume:

\(X^2Y = 8500\)

\((20.5)^2 Y = 8500\)

\(Y = 8500/(20.5)^2 = 16.87\) inches

E) Why might UPS be interested in designing a box that minimizes the surface area:

UPS and other parcel delivery services are always looking for ways to reduce their costs and increase efficiency. By designing a box that minimizes the surface area while still containing the same volume of goods, they can reduce the amount of cardboard used for each shipment. This would save them money on materials and shipping costs, while also reducing their environmental impact. Additionally, smaller boxes take up less space in delivery trucks and planes, allowing more packages to be shipped at once and reducing transportation costs.

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Mean repair cost of 60 samples, 99% may lie (144.8373, 155.1626) i-e 1% may fall outside of this confidence Interval.

X: Repair the cost of refrigerators.

Given that,

X=N(μ, σ²)

where X is the mean cost

then x= $150

σ = $15.50

n = random sample size = 60

100 (1-α)% C.I. is given by

X-\(Z_{\alpha /2}\)×σ/√n, X+\(Z_{\alpha /2}\)×σ/√n,

100 (1-α)% = 99%

α= 0.01

99% confidence interval is

= 150-(2.58 x 15.50/√60)+150+ (2.58 x 15.50/√60)

= (144.8373, 155.1626)

i.e. mean repair cost of 60 samples. 99% may lie (144.8373, 155.1626) i-e 1% may fall outside of this confidence interval.

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Answer:

c=29÷203.

Step-by-step explanation:

i think that might be what you want. pretty sure there's a better way to wright it though.

The formula is;

θ = 71°

Answer:

a) If the diameter is 400 feet wide, then the radius is half that, which is 200 feet wide.

b) The circumfernce is π times the diameter, which is 400 feet. 400×π≈1256.64

c) She is not correct. She squared 400, which is 160000, when she should have squared 200, which is 40000. Then, multiply by π.

40000 × π ≈ 125663.7

Answer:

The simplified value of the expression m/n if m=4/5 and n= −0.25 is -16.

Step-by-step explanation:

GIVE ME BRAINLEST!!!!!!!!!!!!!!!!!!!

Answer:

19.6349540849

Step-by-step explanation:

π × 2.5^2 = 19.6349540849

If the stove is run on 120 V instead of 240 V, it would receive approximately 61.02 W of power.

To determine the power the stove would receive if it was run on 120 V instead of the normal 240 V, we can use the relationship between power, voltage, and current.

The power equation is given by:

P = V * I

Where:

P is the power (in watts)

V is the voltage (in volts)

I is the current (in amperes)

We can rearrange the equation to solve for the current:

I = P / V

Given that the stove requires 2,929 W to operate at 240 V, we can calculate the current at 240 V:

I1 = 2929 W / 240 V

Next, we can calculate the power at 120 V using the current at 240 V:

P2 = V2 * I1

Where:

V2 is the new voltage (120 V)

I1 is the current at 240 V

Substituting the values:

P2 = 120 V * (2929 W / 240 V)

Simplifying:

P2 = 14645 W / 240

Calculating the value:

P2 ≈ 61.02 W

Therefore, if the stove is run on 120 V instead of 240 V, it would receive approximately 61.02 W of power.

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Answer:

B

Step-by-step explanation:

5^9•5^9/10•5^6/100•5^9/1000 = 5^(9+0.9+0.06+0.009) = 5^9.969

Answer:

a. Addition & division

Step-by-step explanation:

2x - 4 = 16   (adding 4 to both sides)

2x  = 16 + 4

2x = 20  (dividing both sides by 2)

x = 20/2 = 10

Hence we can see that the two operations are addition and then division

Using the combination formula, the probability that a person with one combination of five numbers will win is:

\(\frac{1}{1,221,759}\)

\(C_{n,x}\) is the number of different combinations of x objects from a set of n elements, given by:

\(C_{n,x} = \frac{n!}{x!(n-x)!}\)

For this problem, 5 numbers are taken from a set of 45, hence the number of combinations is:

\(C_{45,5} = \frac{45!}{5!40!} = 1,221,759\)

Hence the probability is:

\(\frac{1}{1,221,759}\)

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The length of the rectangle is 6m - 2.

A rectangle is a two-dimensional shape where the length and width are different.

The area of a rectangle is given as:

Area = Length x width

We have,

Area = 30m² - 20m - 10

Width = 5m - 5

Now,

Area = Length x Width

30m² - 20m - 10 = Length x (5m - 5)

10(3m² - 2m - 1) = Length x (5m - 5)

10(3m² - (3 - 1)m - 1 = Length x (5m - 5)

10 (3m² - 3m + m - 1) = Length x (5m - 5)

10 (3m(m - 1) + 1(m - 1)) = Length x (5m - 5)

10 (3m + 1)(m - 1) = Length x 5(m - 1)

(m - 1) gets canceled.

10(3m - 1) = Length x 5

2(3m - 1) = Length

Length = 6m - 2

Thus,

6m - 2 is the length of the rectangle.

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The required equation function j which is the transformation of \(f(x)= x^{1/2}\) is  \(j(x)= (x+2)^{1/2}\) .

As we can see in the graph the functions j and f are similar but the graph of j is 2 units left of f. So, function f(x) has a domain of real number greater than equal to zero, while as the function j is 2 units left of f then its equation is given as  \(j(x)= (x+2)^{1/2}\)  where the domain of j is all real numbers greater then or equal to -2.

Thus, the equation of function j is the transformation of \(f(x)= x^{1/2}\) is  \(j(x)= (x+2)^{1/2}\) .

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In the question the graph is missing, a graph has been added on behalf of the incomplete question.