slimlacourse slimlacourse

27-05-2021
Mathematics

contestada

Which of the following numbers must be added to complete the square in the
equation below?
x^2 +9x+15 = 11
A.-81/4
B.9/2
C.81/4
D. 81

Respuesta :

jcherry99 jcherry99

27-05-2021

Answer:

C

Step-by-step explanation:

Take the coefficient of the linear term and divide it by 2

9/2

Then square it 81/4

That should either be added to the 11 or subtracted from the 15.

The answer is C

Answer Link

Otras preguntas

A 5-foot ladder is leaning against a 4-foot wall. How far must the bottom of the ladder be from the base of the wall so that the top of the ladder rests on the

what is the answer to (11x4)^9

Out of the 40 students in the 7th grade 60% of the students carry cell phones. What fraction of the students carry a cell phone?

Which sentence uses punctuation correctly? A. I loved the novel The Outsiders which really made me

How do you tell if a reaction is endothermic or exothermic using only the written formula

Identify the set as finite or infinite. {1,1/4 ,1/16 ,1/64 , . . .}A. FiniteB. InfiniteCan someone explain this one for me?

-2(b+12)+6b is simplified to what?

Which heavenly bodies are involved in causing the earths tides?A.only the moon and earth.B.only the earth.C.the earth, moon, and sun.D.all the planets plus the

Archie rolls two number cubes, each with sides numbered 1 through 6. He finds the sum of the numbers on the tops of the cubes. Whaf two sums have the probabilit

You start with a number. Double it. Square the answer. You get 400. What number did you start with?