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4 years ago

What is the distance between the points (3,12) and (14,2)

Mathematics

2 answers:

Lelechka [254]4 years ago

8 0

Answer:

Distance between the points (3, 12) and (14, 2) is 14.8661

Step-by-step explanation:

Distance between two points = √(xB−xA)^2+(yB−yA)^2

Solution :

Distance between two points = √(14−3)^2+(2−12)^2

= √11^2+(−10)^2

= √121+100

= √221 = 14.8661

Licemer1 [7]4 years ago

6 0

Answer:

square root of 221

Step-by-step explanation:

d= sqrt (14-3)^2 + (2-12)^2

sqrt 121+100= sqaure root of 221

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3 years ago

When I add a number to another number four times as big, the result is 30. find the first number

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Answer:

x = 6

Step-by-step explanation:

Let x = first number

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3 years ago

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An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the si

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3 years ago

John has decided to prepare an old field for his son's new horse. the length of the field is 10 meters less than 4 times its wid

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Answer: The total money invested in the field will be $1,623.80

Step-by-step explanation:

step 1

Find the dimensions of the field

Let

x -----> the length of the field

y -----> the width of the field

p=2(x+y)

p(4.80)=1,584

p=330m

we know that

The perimeter of the field is equal to

330=2(x+y)----> equation A

x=4y-10 ------> equation B

substitute equation B in equation A and solve for y

330=2(4y-10+y)

165=(5y-10)

5y=165+10

y+35

Find the value of x

x=4(35)-10+130

therefore

The length of the field is 130 meters and the width of the field is 35 meters

step 2

Find the area of the field

The area of the field is

A=xy

substitute

A=(130)(35)=4,550m2

step 3

Find the number of bags of seed

Divide the area by 460

4,550/460=9.89 bags

Round up to the nearest whole number

9.89 bags=10 bags

step 4

Find the cost of the seed

(10 )(3.98)=$19.8

step 5

Find the total money invested in the field

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2 years ago

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How much grain can this container hold?

ludmilkaskok [199]

Answer:

953.78 in^3 of grain.

Step-by-step explanation:

The volume of a cylinder = π r^2 h.

For this cylinder r = radius of the base = 9/2

= 4.5 in and the height h = 15 in

So the volume is 3.14 * 4.5^2 * 15

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3 years ago

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