axsxhxlxexyx1106 axsxhxlxexyx1106

04-03-2018
Mathematics

contestada

The function f is defined by f(x) x2 +3x-10.

If fx +5)x2 +kx+30, k = [?]

Find the smallest zero of f(x+5). x = [?]

The function f is defined by fx x2 3x10 If fx 5x2 kx30 k Find the smallest zero of fx5 x class=

Respuesta :

tynollette tynollette

04-03-2018

f(x+5)=(x+5)²+3(x+5)-10
f(x)=x²+10x+25+3x+15-10
f(x)=x²+13x+30
k=13

x²+13x+30=0
(x+3)(x+10)=0
x=-3 or -10
the smallest zeros is x=-10

Answer Link

clouds122 clouds122

15-04-2021

Answer:

K=13

X=-10

Step-by-step explanation:

Answer Link

Otras preguntas

What is the famous chateau in Holland, France?

R and s configuration

Which is a sign of heartstroke? I'm thinking B or D A. Sweating B. Dilated pupils C. Confusion D. Hallucinations

Eight years from now, bianca will be 50% older than she is now. How old is Bianca

whats one way to check the answer to 5×6=30

A neuron is .a brain cell.b a nerve cell. C a bundle of nerves.d.axon

jackson owns his sister monica monica has a $10 im her pocket explain the meaning of zero in this situation

A cell membrane is a phospholipid bilayer that has polar and non polar ares. On both sides of the membrane are aqueous fluids. What is an important funtion of t

The term "temperature range" refers to: A. the hottest and coldest temperatures recorded in a location. B. the average temperature of a location. C. the usual t

In a story, what does a theme do? A.A theme reflects how humans should behave. B.A theme solves conflicts within a story. C.A theme shows characters' reactions