heavennotes heavennotes

02-05-2021
Mathematics

contestada

a) 9/7
b) 9/-7
c) 7/9
d) -9/7
e) -9/-7

a 97b 97c 79d 97e 97 class=

Respuesta :

mathstudent55 mathstudent55

02-05-2021

Answer:

a) 9/7

Step-by-step explanation:

[tex] \dfrac{x^2 + x - 20}{x^2 - x - 12} = [/tex]

[tex] = \dfrac{(x + 5)(x - 4)}{(x + 3)(x - 4)} [/tex]

[tex] = \dfrac{x + 5}{x + 3} [/tex]

x = 4

[tex] = \dfrac{4 + 5}{4 + 3} [/tex]

[tex] = \dfrac{9}{7} [/tex]

Answer Link

Otras preguntas

What body of water is bordered by two central asian countires?

WHICH TYPE OF NUCLEAR WASTE CAN BE MOST SAFELY HANDLED

Once defining stress as an inability to cope, stress expert joan borysenko now defines stress as

What is the energy in joules and ev of a photon in a radio wave from an am station that has a 1500 khz broadcast frequency?

Is it unconstitutional to wear the american flag?

For how many values of n is n-6/6-n>0

If the reserve ratio is 12.5 percent, then $1,000 of additional reserves can create up to

Read these lines from emily dickinson's poem "because i could not stop for death":since then 'tis centuries and yetfeels shorter than the dayi first surmised

Received much acclaim and many prestigious awards. what kind of phrase is this sentence?

Which is the graph of g(x) = 2x – 1 + 3?