10-09-2014
Mathematics

Answered

for the function f(x)=3xsquared- 2x+5 find f(1) f(-2) and f(a)

Answer :

10-09-2014

[tex]f(x)=3x^2-2x+5\\\\ f(1):\ \ Substitude\ 1 \ as\ x\ into\ function:\\ f(1)=3*1^2-2*1+5=3-2+5=\textbf{6}\\\\ f(-2)\ \ Substitude\ x=-2\\ f(-2)=3*(-2)^2-2*(-2)+5=3*4+4+5=12+4+5=\textbf{21}\\\\ f(a)\ \ substitude\ x=a\\ f(a)=\underline{3a^2-2a+5}[/tex]

Answer Link

Other Questions

The perimeter of a semicircle is 80.698 miles. What is the semicircles radius?

Which of the following describes deep, long-term relationships between supply chain members that are based on mutual benefits? a) Strategic partnership b) Trans

If a plane, intercepts on the coordinates axes at 8,4,4 then the length of the perpendicular from the origin to the plane is a) 8/3 b) 3/8 c) 3 d) 4/3

SprayCo Inc. develops and produces spraying equipment for lawn maintenance and industrial uses. On March 9 of the current year, SprayCo reacquired 11,100 shares

• Activity 3: Data gathering from research, survey, and interview. (See attached survey questionnaires). Part A: Interview 7 learners / adults at your school/co

The electric field component of a uniform plane wave in air emitted by a mobile communication system is given by E(x,y, t) = 2100 cos(wt + 4.8TX-3.6 y + θ) mV/m

A client diagnosed with goodpasture syndrome would require which therapy to remove proteins and autoantibodies from the system?

Before a computer can use a router, with what configuration information must it be provided? A. routing table B. subnet mask C. default gateway D. default route

The pros, cons, faults, and fixes analysis is a decision making tools that assist the writer in making quick decisions.A. TrueB. False

Choose the most appropriate reagent(s) for the one-step synthesis of the target molecule. a) P₃, NaOH, H₂O, heat b) KCl, LiAlH₄, diethyl ether c) Li, NH₃ d) PCC