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gtnhenbr [62]
3 years ago
8

8(10−k)=2k solve for k

Mathematics
2 answers:
Olenka [21]3 years ago
6 0
Plug in 8 for k and that's your answer
Delvig [45]3 years ago
3 0
<span>8(10−k)=2k
80 - 8k = 2k
80 = 10k
8 = k
or 
k = 8</span>
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A right triangle has the side legnths 4 units, 5 units, and x units. It is unknown if the missing length is the longest or short
Free_Kalibri [48]

Answer:

For longest x = 6.4

For shortest x = 3

Step-by-step explanation:

Given a right angle triangle with lengths 4 units and 5 units and x units .

x can be gotten using Pythagoras theorem .

If x Is the longest side , then

x^2 = 5^2 + 4^2

= 5x5 + 4x4

= 25 + 16

x^2 = 41

x = squared root of 41

x = 6.4

If x is the shortest side ,

x^2 = 5^2 - 4^2

= 5x5 - 4x4

= 25 - 16

x^2 = 9

x = squared root of 9

x = 3

4 0
3 years ago
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mel-nik [20]
I think it is a statistical question
6 0
3 years ago
The acceleration function a(t) (in m/s2) and the initial velocity v(0) are given for a particle moving along a line.
klemol [59]

Answer:

A: v(t)=-t^2+4t-5

Step-by-step explanation:

Acceleration is second derivative of position, velocity is first derivative. Therefore, the velocity is the integral of acceleration.

v(t)=\int\ {2t+4} \, dt

Integrate:

-t^2+4t+C

V(0)=-5:

-0^2+4(0)+C=-5\\C=-5

Therefore, v(t):

v(t)=-t^2+4t-5

7 0
3 years ago
What expressions are equivalent to 4x-5
Vitek1552 [10]

Answer:

2(2x-2.5)

4(x-1.25)

5(0.8x-1)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
HG is the perpendicular bisector of FK.<br> What is the length of GH?<br> 8<br> 9<br> 15<br> 34
igor_vitrenko [27]

Answer:

GH=15

Step-by-step explanation:

HK= FK/2= 16/2= 8

Using pythagoras theorem in triangle GHK,

GH²= GK²-HK²

= 17²-8²

= 225

GH= √225

=15

4 0
3 years ago
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