An airplane flies 2720 km in 4 hours calculate the average speed in kilometers per hour?

Answer:

In order to determine if two lines are parallel, perpendicular, or neither, look at their slopes. If the lines have the same slope, they are parallel. If the slopes are opposite reciprocals, then they are perpendicular. If the slopes of the lines are not any of those, then they are neither.

Parallel line: [tex]y = \frac{2}{5} x[/tex]

Perpendicular line: [tex]y = -\frac{5}{2} x[/tex]  

Neither: [tex]y = 3x[/tex]

Step-by-step explanation:

In order to determine if two lines are parallel, perpendicular, or neither, look at their slopes. If the slopes of the two lines are the same, then they are parallel. If the slopes of the two lines are opposite reciprocals, then they are perpendicular. If the slopes of the lines are not any of those, then they are neither.  

The equation [tex]y = \frac{2}{5} x+7[/tex] is in slope-intercept form. The y is isolated and it's in [tex]y = mx + b[/tex] format. Whenever an equation is in slope-intercept form, the [tex]m[/tex], or the coefficient of the x-term, represents the slope. So, the slope of the given line is [tex]\frac{2}{5}[/tex]. Therefore, use the rules listed previously to find lines that are parallel and perpendicular.

Parallel lines have the same slope, so an example of a parallel line would be [tex]y = \frac{2}{5} x[/tex].

Lines that are perpendicular have slopes that are opposite reciprocals, so an example of a perpendicular line would be [tex]y = -\frac{5}{2} x[/tex].

Lines that are neither do not fall into either of those categories, so an example of a line that is neither would be  [tex]y = 3x[/tex].

Answer:

y = 3

Step-by-step explanation:

Answer:

y= 3

Step-by-step explanation:

Answer

11.5 ft

Step-by-step explanation:

Perimeter of rectangle:2(l+w)

l :1/4 ft w:11/2 ft

2(1/4+11/2)=11.5

Step-by-step explanation:

11/8 is the answer.

( I am not sure about my answer so I am extremely sorry:/ )

Answer:

I believe its 66

Step-by-step explanation:

55×20%=11

55+11=66

Answer:

6,4

Step-by-step explanation:

Answer:

y= -3x+ 18

Step-by-step explanation:

hope it helps :)))))

Answer:

[tex]\frac{2z^3}{5xy^2}[/tex]

Step-by-step explanation:

Answer:

Step-by-step explanation:

i is the only thing i in my life and green and orange safe because he has to go back and forth with me because he is joke

Answer:

x=7.5, y=50

Step-by-step explanation:

12x=90   divide by 12

x=7.5

40+90+y=180    

130+y=180

y=180-130

y=50

Answer:

y=18 x=15

Step-by-step explanation:

1.

multiplyboth sides by 3

2(x-6)=18

divide both sides by 2

x-6= 9

add 6 on both sides

x=15

2.

add 6 on both sides

2/3y= 12

multiply both sides by 3

2y=36

divide both sides by 2

y=18

Answer:

Volume: 41.643

Surface area: 119.04 (nearest tenth... I don't know...sorry)

Step-by-step explanation:

I didn't know if you need volume or surface area so you got both!

Answer:

6-2=4x5=20+5=25x4=100

Step-by-step explanation:

Answer:

I think the strawberry cake measure have to be 360⁰. so the arc measure is 360⁰÷3=100

so we have all three arcs congruent b/c all measures 100⁰

I think XYZ=100⁰

Step-by-step explanation:

solution given:

a strawberry cake is cut into three pieces

since

Arc measures of all three pieces are congruent

all 3 arc are equal

So it forms a equilateral TRIANGLE

each angle of equilateral triangle is 60°

So,measure of angle XYZ is 60°.

Answer and Step-by-step explanation:

First, get theta by itself.

θ = [tex]sin^{-1}(\frac{\sqrt{3} }{2} )[/tex]

Plug this into a calculator.

θ = 60°

To get it in radians, multiply 60 by [tex]\frac{\pi }{180}[/tex].

θ = [tex]\frac{1}{3} \pi[/tex] radians

#teamtrees #PAW (Plant And Water)

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Answer: 240 mangoes

Explanation:

1/5 + 0.75 = .95 = 95%

5% = 12

50% = 120

100% = 240

I hope this helped!

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Answer:

240

Step-by-step explanation:

1/5

0.75 = 3/4

1/5 + 3/4 = 19/ 20

1 - 19/20 = 1/20

therefore 12 mango equal 1/20

12 × 20 = 240

12/240 is the same as 1/20

Answer:

2,4 B and D

Step-by-step explanation:

Answer:

B and D

Step-by-step explanation:

Answer:

√(64÷√(98 = (4√2)/7

Step-by-step explanation:

The Sqrt(64) is equivalent to 8

And the Sqrt(98) is equivalent to Sqrt(49) x Sqrt(2) also known as 7 Sqrt(2)

Now since we can't have a Square Root at the denominator we multiply it by Sqrt(2) on both the numerator and denominator

We now have 8Sqrt(2)/14 which can be simplified to (4√2)/7

Answer: veasy

Step-by-step explanation: it is a rectangle then it's area will be length *breadth =45cm*26=1170cm^2.

Answer:

1170 or 0.117 m^2

Step-by-step explanation:

Answer:

of triangle =12base×height

Area of triangle =2x2−11x+15

base =2x−5

Plugging in the given;

2x2−11x+15=12(2x−5)×height

2x2−11x+15=2x−52×height

2x2−11x+151=2x−52×height

2(2x2−11x+15)=(2x−5)×height

4x2−22x+30=(2x−5)×height

4x2−22x+302x−5=height

Resolving the quadratic equation;

(4x2−22x+30)

Simplifying;

4x

Answer:

2x-6

Step-by-step explanation:

height : 2(2x^2-11x+15)/(2x-5)

(4x^2-22x+30)/(2x-5)

Δ/4 = 121 - 120 = 1

x1 = (11+1)/4 = 3

x2 = (11-1)/ 4 = 5/2

4(x-5/2)(x-3)

(4x-10)(x-3)/(2x-5)

2(2x-5)(x-3)/(2x-5)

2x-6

Proof

(2x-6)(2x-5)/2

2(x-3)(2x-5)/2

2x^2-5x-6x+15

2x^2-11x + 15

Answer:

6

Step-by-step explanation:

After 10 hours he has graded 10*7 papers which is 70

76-70 = 6

Answer:

The answer is 6

Step-by-step explanation:

10X7=70

76-70=6

Answer:

69 slices

Step-by-step explanation:

3 5/6 = 3 15/18 = 69/18

if each slice is 1/18, then 69 slices

Answer:

Average time for West Middle was maximum.

Step-by-step explanation:

Average time for a track meet for schools = [tex]\frac{\text{Time}}{\text{Distance}}[/tex]

For Eastbay Middle,

Average time per mile = [tex]\frac{42}{7}[/tex]

                                     = 6 minutes per mile

For Northwest Middle,

Average time = [tex]\frac{25}{5}[/tex]

                       = 5 minutes per mile

For South Central Middle,

Average time = [tex]\frac{28}{4}[/tex]

                       = 7 minutes per mile

For West Middle,

Average time = [tex]\frac{48}{6}[/tex]

                       = 8 minutes per mile

Therefore, average time for West Middle (8 minutes per minute) was maximum.

Answer:  Out of £750 and 3 bums

Caroline = 225

Bridget = 225 * 3 = 675

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given:

We have equations:

Substitute s with b and b with c as above into first equation:

Find b:

Bridget gets £228

Answer:

The slope is 3

Step-by-step explanation:

m = rise/run

m = (y2 - y1)/(x2-x1)

points: (0,-5), (1,-2)

m = ((-5) - (-2))/ ((0) - (1))

m = (-5 + 2)/ (-1)

m = -3/-1

m = 3

Answer:

x=9 is not the solution to the inequality.

Step-by-step explanation:

10 is not greater than 10

Answer:

y=8-6x

Step-by-step explanation:

Answer:

y=0

x=4/3

Step-by-step explanation:

6x+y=8

x =8-y/6

substitute 8-y/6 in second equation

42*8-y/6 +7y=56

7(8-y) +7y=56

56-y+ 7y=56

-y+ 7y=0

6y=0

y=0

6x+y=8

6x+0=8

x=8/6

x=4/3

Step-by-step explanation:

4x -20 + 3x +12 = 90

7x -8 = 90

7x = 98

x = 14

Angle F: 4(14) -20 = 36

Angle E: 3(14)+12= 54

Angle G : 90

The answer for the following question is 0.7

Answer: 0.7

Step-by-step explanation: