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4 years ago

What is the distance between point A and point B? Round your answer to the nearest tenth.

Mathematics

1 answer:

Alina [70]4 years ago

8 0

Answer:

The distance between A and B is 3.6 units ⇒ 2nd answer

Step-by-step explanation:

* Lets study how to find the distance between two points

- If we have point A (x1 , y1) and B (x2 , y2), then the distance

between them = √[(x2 - x1)² + (y2 - y1)²]

* Now lets find A and B from the graph and calculate the

distance between them

∵ A = (-3 , 9) and B = (-1 , 6)

∵ (x2 - x1) = -1 - (-3) = -1 + 3 = 2

∵ (y2 - y1) = 6 - 9 = -3

∴ The distance between A and B = √[2² + (-3)²] = √[4 + 9] = √13

∵ √13 = 3.60555

* to approximate to the nearest tenth, we look to the

hundredth if it's ≥ 5, then we add the tenth digit by 1

if not we leave the tenth digit as it

∵ The hundredth is 0

∴ there is no change in the tenth digit

∴ The distance between A and B = 3.6 units ⇒ to the nearest tenth

* The distance between A and B is 3.6 units

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4 years ago

Beverly drove from the Atlantic City to New York she drove 284 miles at a constant speed of 58 mph how long did it take Beverly

lubasha [3.4K]

Answer:

4.9 hours = 4 hours 54 minutes

Step-by-step explanation:

speed = distance/time

time * speed = distance

time = distance/speed

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3 years ago

0.5(70a + 12b +2)<br> anyone??

gregori [183]

THE ANSWER IS 49ab BECAUSE YEAH

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3 years ago

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The formula for perimeter of a rectangle is P=2L+2W where L is the length and w is the width. A rectangle has a perimeter of 24

Black_prince [1.1K]

24=2(w+4)+2w=4w+8, subtract 8 from both sides 4w=16, w=4. L=w+4 so l is 8. The dimensions are 8 by 4.

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3 years ago

X^2 - 2x = 15 how do I solve this quadratic method?<br>I am stuck on it.... please help<br>

Anarel [89]

Answer:

(x - 5)(x + 3)

Step-by-step explanation:

to solve x² - 2x = 15, we need to get all the terms on one side so we can solve the quadratic equation using factoring. to do this, we subtract 15 from both sides

x² - 2x = 15

- 15 -15

x² - 2x - 15 = 0

now we can factor. we need 2 numbers that when multiplied together give us -15, and when those 2 numbers are added together we get -2

because we have a -15, we can assume that one number must be negative and the other positive, as a negative times a postive is a negative.

we can use 3 and -5 as factors and test it out. we put x in front because we have an x²

(x - 5)(x + 3) < we can FOIL to check to see if this is correct. its not mandatory to check but when you arent sure of the answer you can FOIL it out

FOIL stands for: First, Outside, Inside, and Last terms

F: (x - 5)(x + 3) = x²

O: (x - 5)(x + 3) = -3x

I: (x - 5)(x + 3) = 5x

L: (x - 5)(x + 3) = -15

x² + 3x - 5x - 15 < subtract 3x from 5x

x² - 2x - 15

this checks out, so our answer is (x - 5)(x + 3)

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3 years ago

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