ineedhelp201833 ineedhelp201833

03-12-2018
Mathematics

contestada

Evaluate the expression x^2+8x-4 if x=3

Respuesta :

rthanvi088 rthanvi088

03-12-2018

Answer:

29

Step-by-step explanation:

first sub in 3 wherever x is shown

(3)^2+8(3)-4 the use bedmas (brackets,exponents,division,multiplication,addition,subtraction)

solve brakets first

(3)^2=9

8(3)=24

rewrite equation ; 9+24-4=29

Answer Link

Otras preguntas

Given the system of equations One-third x minus two-thirds y = 7 and two-thirds x + 3 y = 11, which numbers can be multiplied by the equations to eliminate the

Paisley and her children went into a restaurant where they sell hamburgers for $6.50 each and tacos for $4 each. Paisley has $80 to spend and must buy a minimum

Given a quadratic equation px^2 + 8x + 2 does not have real roots. Determine the range of the values of p. [4 marks]

Question is on the picture and thank you!

Someone plz help it’s due in 3 minutes

Can someone please help me on this???I keep messing it up.

State whether the following mapping represents a function. Then give the domain and range.

a puppy gained 6 pounds during the month of September which has 30 days. on average how many pounds did the puppy gain each day select all that apply

which two people first helped spread christianty

What circles are they talking about?