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

Which of the following elements has the highest 1st ionization energy of all the periodic table elements? A. HE B. Ne C. Ar D. N

Which characteristic can be inherited? o the appetite of a puppy O freckles on the skin O the length of hair in a human the ability to play piano PLEASE HELP!!!

4 x 1/3 x 3/4 x 1/3 as a fraction or whole number

Question If you start a chemical reaction with 6 hydrogen atoms, then how many hydrogen atoms would you have after the reaction? a. 1 b. 3 c. 0 d. 6

What distinguishes a tsunami from other types of ocean waves

Jason bought 7 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 39 cards left. How many

What is the best way to revise this sentence fragment? Because she used to brag about being the smartest girl in school.

how did the artist create emphasis in the background of this painting

A woman was born in 1916, but she just celebrated her 26th birthday in 2020. Explain how this is possible using just two words. (Hint: use lower case letters on

A person or company that receives a payment from the government that encourages them to develop new ideas for their key industries is called what? American Stud