3 years ago

What's the reciprocal of -2?

Mathematics

1 answer:

joja [24]3 years ago

5 0

Answer:

-1/2

Step-by-step explanation:

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Find the intersection points of the linear and quadratic functions shown below f(x)=2x-5 g(x)= x2+2x-21

Mice21 [21]

Answer:

$(-4,-13)$ and $(4,3)$ the intersection points.

Step-by-step explanation:

Intersection point of two functions is a common point which satisfies both the functions.

Given functions are,

$f(x)=2x-5$

$g(x)=x^2+2x-21$

For a common point of these functions,

$f(x)=g(x)$

$2x-5=x^2+2x-21$

$-5=x^2-21$

$0=x^2-16$

$x^2=16$

$x=-4,4$

For $x=-4$ ,

$f(-4)=g(-4)=2(-4)-5$

$=-13$

For $x=4$ ,

$f(4)=g(4)=2(4)-5$

$=3$

Therefore, $(-4,-13)$ and $(4,3)$ the intersection points.

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3 years ago

K is the midpoint of VW. If KV = 3x and KW = 5x-10, what is VW? 22.5 15 7.5 30

LekaFEV [45]

Answer:

Step-by-step explanation:

just took the test. x=5 and the answer to the equation is 15

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How many solutions does 2x^2-3x+6=0 have?

Ipatiy [6.2K]

Answer:

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Step-by-step explanation:

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Use the symbol > to compare -3.5 and -1.5

dybincka [34]

-1.5 is the answer because it is 75

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