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kari74 [83]
3 years ago
6

Given a vector with the initial point, (4,2) and the terminal point, (-3,1), find the vector in unit vector form.

Mathematics
1 answer:
Gwar [14]3 years ago
7 0

Answer:

Wish i can help but i don't understand that

Step-by-step explanation:

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Please help.............
natta225 [31]

Answer:

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2(x + 2) + 2x = 20

6 0
3 years ago
Read 2 more answers
A circle's circumference is approximately 44 cm.
Sav [38]
<h3>Answers</h3><h3>diameter = 14</h3><h3>radius = 7</h3><h3>area = 154</h3>

these are all approximate

======================================

Explanation:

C = pi*d is the formula for the circumference. We know that C = 44 approximately, so,

C = pi*d

d = C/pi

d = 44/3.14

d = 14.01 approximately

d = 14 also approximate

take half of this to get the radius

r = d/2 = 14/2 = 7

Then use this radius to find the circle's area

A = pi*r^2

A = 3.14*7^2

A = 153.86

A = 154  rounding to the nearest whole number

7 0
3 years ago
What’s 0.769769769 in fraction form?
SSSSS [86.1K]

Answer:

769769769/1000000000

Step-by-step explanation:

5 0
3 years ago
Given u = LeftAngleBracket StartRoot 3 EndRoot, negative 1 RightAngleBracket and v = ⟨3, –4⟩, what is u · v?
Evgesh-ka [11]

Answer:

3√3+4

Step-by-step explanation:

Given the vectors u = <√3, -1> and v = <3, -4>

u · v =  <√3, -1> *<3, -4>

u · v = 3√3 + (-1*-4)

u · v = 3√3+(4)

u · v  =  3√3+4

Hence the dot product is 3√3+4

5 0
3 years ago
Read 2 more answers
The​ half-life of a certain substance is 26 years. How long will it take for a sample of this substance to decay to 92​% of its
Nana76 [90]

Answer:

t= 3.1 years

Step-by-step explanation:

A = A_0 e kt

Half life(1/2) = 26 yrs

1/2 = 1_0 e^k.26

ln(1/2) = ln(e^26k)

26k. ln(e) = ln(1/2)

k = 1/26* ln(1/2)

k = -0.0267

A = A_0 e^kt

0.92 = 1.e^(-0.0267)t

ln(0.92) = ln(e^(-0.0267)t

-0.0267t .ln(e) = ln(0.92)

t = ln(0.92) / -0.0267

t = 3.122

t = 3.1years (approximate to 1 d.p)

3 0
3 years ago
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