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natita [175]
3 years ago
8

What is the distance between (7, 1) and (4, -5)?

Mathematics
2 answers:
Paha777 [63]3 years ago
7 0

9514 1404 393

Answer:

  3√5 ≈ 6.708

Step-by-step explanation:

The distance between points is given by the distance formula:

  d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\d=\sqrt{(4-7)^2+(-5-1)^2}=\sqrt{(-3)^2+(-6)^2}\\\\d=\sqrt{9+36}=\sqrt{9\cdot5}\\\\\boxed{d=3\sqrt{5}\approx 6.708}

marusya05 [52]3 years ago
6 0
The distance between those to points is d=6.708204 or d=6
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X= 6/17or the alternative form is 0.352941
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Wbt do i multiply 7 by to get 21 or the first number they both have the same?
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PLEASE HELP Which ordered pair is a solution to the system of inequalities?<br> y&lt; 3x<br> y&lt; 5
dimaraw [331]

Answer:

I am pretty sure that it is  C

Step-by-step explanation:

A 1,3 so 3 < 3 no not true

   x,y

B -12,50   50< -36 Also not true

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5 0
3 years ago
Please can someone express √5 as a fraction? ​
VashaNatasha [74]
<h2>Answer:</h2>

<em>SInce this continued fraction does not terminate, we can tell that √5 cannot be represented as a terminating fraction - i.e. a rational number. So √5 is an irrational number a little smaller than 214=94 . For better rational approximations you can terminate the continued fraction after more terms.</em>

hope this help!

5 0
3 years ago
The function f(t) =16t 2 + 248 models the height f(t) in feet of a stone t seconds after it is dropped from the edge of a vertic
Hatshy [7]

Answer:

The time it takes for the stone to reach the ground is 3.94 s. This answer is correct.

Step-by-step explanation:

I believe there's a mistake in the equation shown, the acceleration (number that multiplies t²) should be negative, since the stone is falling, therefore I'll answer assuming it's -16 instead of 16, otherwise there would be no real solution to the equation.

In order to calculate how long it'll take for the stone to hit the ground we must make f(t) = 0 and find the time "t" that makes the equation valid, so we have:

f(t) = -16t² + 248 = 0

-16t² = -248

t² = -248/(-16) = 15.5

t = sqrt(15.5) = 3.94

7 0
3 years ago
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