felicia0828 felicia0828

02-08-2022
Mathematics

contestada

Let r(x)=x^2 - x + 14. Find all values of a such that r(a) = 20.

Respuesta :

parsahosseinal14 parsahosseinal14

02-08-2022

Answer:

a=–2, 3

Step-by-step explanation:

r(a)=20

a²–a+14=20===> a²–a–6=0===> (a–3)(a+2)

Answer Link

Otras preguntas

the rockford's have a square play area that is built around a center sandbox that is in the shape of a circle. the sides of the play area are tangent to the cir

Which sentence uses a transitive verb? A. The toys were brand new and shiny. B. My brother broke a small toy truck. C. We all played with that toy truck. D

What are the formulas for finding momentum

Arsenic is often obtained by heating the ore arsenopyrite, FeAsS. The decomposition of FeAsS is represented by the balanced equation below. FeAsS(s) ==heat==>

Jenna flips two pennies 105 times how many times can she expect coins to come up with heads

What genes are mutated to cause cancer?

How many moles of solute are contained in 200 milliliters of a 1 M solution? (1) 1 (3) 0.8 (2) 0.2 (4) 200

Which value on the number line is the best estimate of the center of the data set?

what is 3.57 as a fraction

Why was the continental congress unable to fix the economic crisis after the American revolution?