The function f is defined by
f(c)=x^2 +3x-10.
if f(x+5)=x^2 +kx+30, k= ?
find the smallest zero of f(x+5). x=?

k=13

x= -10

Step-by-step explanation:

f(x)=x²+3x-10

f(x+5)=

=(x+5)(x+5)+3(x+5)-10

=x²+10x+25+3x+15-10

=x²+13x+30

0=x²+13x+30

0=(x+3)(x+10)

x= -3 or -10

-10< -3

smallest zero is -10

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.