amandamarshall2019 amandamarshall2019

02-09-2021
Mathematics

contestada

If f(x) = 7x2 - 4x, what is the value
of f(2)?
F -8
J 17
G 2
K 20
H 6

Respuesta :

williamwong66 williamwong66

02-09-2021

Answer:

K 20

Step-by-step explanation:

f(x) = 7x2 - 4x

f (2) = 7 (2)^2 - 4(2)

= 28 - 8

= 20

Since they replaced the x inside f(x) with 2, just do that the same to the right side, change all x into 2

Answer Link

Otras preguntas

If an infinite line of current located on the z-axis has a cylindrically symmetric H field of H0a (a is the unit vector in the direction) at r = a, find: a. H a

Mr. and Mrs. Doran have a genetic history such that the probability that a child being born to them with a certain trait is 0.83. If they have four children, wh

HG is tangent to circle O at point W. WU is the circle's diameter. Find m/GWU. Answer Attempt 1 out of 2 m/GWU H W Submit Answer

Given that y1(t)=cos(t) is a solution to y''-y'y=sin(t) and y2(t)=1/3e²t is a solution to y''-y'y=e²t. What is the general solution to the differential equation

Find the slope of the line through each pair of points: (3,4) and (3,-4) m=?

Bonnie invests a sum of money for 3 years at an interest rate of 4.5%, gaining $9.45 in interest. What was the total sum of money invested by Bonnie?

Determine the structure of the six uds states. a) Linear b) Tetrahedral c) Trigonal planar d) Octahedral

Find the value of unknown angles

A team from the high school went on a science-and-math quiz show. The science questions were worth 1 point and the math questions were worth 8 points. The team

please help. my bf is the smart one and hes asleep.