Answer:
x=-6.192
and
x=-0.807
Step-by-step explanation:
1) turn this into a quadratic equation by moving it to the "10" to the right:
-x^2+7x-5=0
now quadratic equations are in the form of:
ax^2+bx+c
so substitute a=1
b=7
and c=-5 in the quadratic formula:
so
lets do addition first:
so
(7+)/-2=-6.19258240357
lets do subtraction next:
(7-)/-2=-0.80741759643
Answer:
1. (2.923) 2. i don't know what they are asking for but i believe it is the mean so add all of the data up and divide by how many data pieces there are ( there are seven
Answer:the first one
Step-by-step explanation:
Answer:
foot exercises
Step-by-step explanation:
kims leg muscle exercises last 25 minutes (3/7 of an hour) while her foot exercises last for 40 minutes (2/3 of an hour), so kim does her foot exercises for 15 more minutes than her leg muscle exercises