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d1i1m1o1n [39]
3 years ago
14

Pleas yall help ill give 20 points

Mathematics
1 answer:
lesya [120]3 years ago
4 0

Answer:

b) x=-2

Step-by-step explanation:

2(x+2)-4x =8

2x+4-4x

-2x+4 = 8

    -4   -4

-2x = 4

(divide both sides by -2)

x=-2

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A research organization reported that 41 percent of adults who were asked to describe their day responded that they were having
Neporo4naja [7]

Answer:

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Step-by-step explanation:

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H-alt: p =/= 0.41

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3 0
3 years ago
Find a unit vector in the same direction as the given vector: v = −14.5i + 2.5 j.
Elis [28]

ANSWER

-  \frac{29}{866}  \sqrt{866} i + \frac{5}{866}  \sqrt{866} j

EXPLANATION

The given vector is v = −14.5i + 2.5 j.

The magnitude of this vector is

|v|  =  \sqrt{ {( - 14.5)}^{2}  +  {2.5}^{2} }

v|  =  \sqrt{ {( - 14.5)}^{2}  +  {2.5}^{2} }

v|  =  \sqrt{ 216.5}  =  \frac{ \sqrt{866} }{2}

The unit vector in the direction of this vector is

=  \frac{v}{ |v| }

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=  -  \frac{29}{866}  \sqrt{866} i + \frac{5}{866}  \sqrt{866} j

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3 years ago
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