at maximum speed, an airplane travels 1680 miles against the wind in 5 hours. Flying with the wind, the plane can travel the same distance in 4 hours.

Answer: the answer is D on edge

Step-by-step explanation:

Answer: number of days: c=f(d) =12d

Imput:12

Step-by-step explanation:

y = k *x
y=10 ; k=10

10 = 10*x
x = 10/10 = 1

x =1

hello : 

help :
the discriminat of each quadratic equation : ax²+bx+c=0 ....(a ≠ 0) is :
Δ = b² -4ac
1 )  Δ > 0  the equation has two reals solutions : x =  (-b±√Δ)/2a
2 ) Δ = 0 : one solution : x = -b/2a
3 ) Δ < 0 : no reals solutions

The formula for finding the measure of each exterior angle of a regular polygon is similar to the formula for finding the measure of each interior angle. We take the sum of the measures of the exterior angles which is always 360 degrees and we divide this by the number of sides in the polygon which is n. So the formula for finding the measure of each exterior angle of a regular polygon is simply 360 over n. In this problem since the polygon has 24 sides, we simply plug a 24 in for n and we have 360 over 15. 360 divided by 24 is 15. Therefore, the measure of each exterior angle of a regular polygon that has 24 sides is 15 degrees.

value = 18000*(1-0.50)^3 = 2250

value after 3 years = $2250

Answer:

31/16

Step-by-step explanation:

The expression 6/12 divided by 1/4 is 2 and the model is attached

Drawing a model to represent the problem

From the question, we have the following parameters that can be used in our computation:

6/12 divided by 1/4

This can be expressed as

6/12 multiplied by 4

So, we have

0.5 multiplied by 4

When the product is evaluated, we have

2

Hence. 6/12 divided by 1/4 is 2 and the model is attached

The boiling point of a phosphoric acid solution that is 158 degrees Celsius is 316.4 degrees Fahrenheit. This is found by using the formula F = C * 9/5 + 32.

To convert the boiling point of a solution from degrees Celsius to Fahrenheit, we use the formula F = C * 9/5 + 32, where F represents the temperature in Fahrenheit and C represents the temperature in Celsius.

In this case, the temperature in Celsius that you want to convert is 158 degrees. So you can substitute this value in the formula as follows:

F = 158 * 9/5 + 32

When you perform the calculation, you find that the boiling point of the phosphoric acid solution is 316.4 degrees Fahrenheit.

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Answer:

A) 8 N/ft2

Step-by-step explanation:

Pressure is the normal force per unit area, that is, it is equivalent to the force acting on the surface unit, and is given by:

[tex]P=\frac{F}{A}[/tex]

Where:

[tex]P=Pressure\\F=Normal\hspace{3}force\\A=Area\hspace{3} where \hspace{3}force\hspace{3} is \hspace{3}applied.[/tex]

In the first case:

[tex]P=16N/ft^2\\A=3ft^2[/tex]

Using the previous equation and solving for [tex]F[/tex] :

[tex]F=P*A=16*3=48N[/tex]

Now, for the second case, since the force is the same applied in the first case, then:

[tex]P=\frac{F}{A} =\frac{48}{6} =8N/ft^2[/tex]

Therefore the answer is:

A) 8 N/ft2

do a ratio

11/2=X/24

24*11 = 264

264/2 = 132

X= 132

 so 132 students

The measure of the angle between the shorter leg and the hypotenuse,    [tex]\theta[/tex] = 70.53 °

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.

Given that:

Let us consider the shorter leg be 'x'.

and, the Hypotenuse be '3x '.

Using trigonometric functions,

[tex]cos \theta= \frac{Base}{Hypotenuse}[/tex]

cos [tex]\theta[/tex] = x /3x

cos [tex]\theta[/tex] = 1/3

 [tex]\theta[/tex] = [tex]cos^{-1}[/tex] (1/3)

  [tex]\theta[/tex] = 70.53 °

Hence,  the measure of the angle between the shorter leg and the hypotenuse  70.53 °

Learn more about Trigonometric function here:

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The area of the rectangle is given by the equation A = 12c² + 60c

What is the Area of a Rectangle?

The area of the rectangle is given by the product of the length of the rectangle and the width of the rectangle

Area of Rectangle = Length x Width

Given data ,

Let the area of the rectangle be represented as A

Now , the equation will be

Let the length of the rectangle L = ( 3c + 15 ) feet

Let the width of the rectangle W = 4c feet

Now , the area of the rectangle A = length of the rectangle L x width of the rectangle W

Substituting the values in the equation , we get

Area of Rectangle A = ( 3c + 15 ) ( 4c )

On simplifying the equation , we get

Area of Rectangle A = ( 3c ) ( 4c ) + 15 ( 4c )

Area of Rectangle A = 12c² + 60c

Therefore , the value of A is 12c² + 60c

Hence , the area of the rectangle is A = 12c² + 60c

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By using the equations Cj = 20 + 0.10x for Joseph's phone cost and Cm = 10 + 0.15x for Micki's phone cost, we find their costs would both be the same if 200 text messages were sent.

The question is asking us to create an equation for both Joseph's and Micki's texting plans. In mathematical terms, the cost for each plan would be represented by the equation Cost = base rate + (cost per letter)x, where x represents the number of texts.

So for Joseph, the equation would be Cj = 20 + 0.10x and for Micki the equation would be Cm = 10 + 0.15x.

To find out when both plans cost the same, we set the two equations equal to each other and solve for x.

20 + 0.10x = 10 + 0.15x  

By subtracting 0.10x from both sides and then subtracting 10 from both sides we get:  

x = 200.

This means that both plans would cost the same if both parties sent 200 texts.

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Answer:

The answer is 1/17.

Step-by-step explanation:

You will draw one club which will be 13/52. You will NOT replace it so you will draw a second card 12/51.

You will need to multiply them to find the probability.

First simplify your two fractions.

13/52 = 1/4   AND  12/51= 4/17

Multiply the two together and you will get 4/68 = 1/17

Hope this helps :)