Answer:
7(-1/2 +2) = -6(2(-1/2) -1) +3(-1/2)
7(3/2) = -6(-2) -3/2
21/2 = 12 -3/2 . . . . . true, answer checks OK
Step-by-step explanation:
Answer. z = ± √10 = ± 3.1623
So we know that point-slope form is as follows:
The points (
and 
correspond to the point given and m is representing the slope. So we plug in what the question gives us:
<------ Point-slope form
Now we can take this form and simplify to give us the slop-intercept form:
<----- Slope-intercept form
I think the answer should be b, since y=3 when x=0, according to the option B.
y = x + 3, B
Answer:
25
Step-by-step explanation:
Each of the 16 "ratio units" representing all 80 dancers must stand for ...
(80 dancers)/(16) = 5 dancers
Then 5 "ratio units" representing seventh-grade dancers will stand for ...
5 × 5 dancers = 25 dancers
___
Another way to figure this is to write the proportion ...
(seventh-grade dancers)/(all dancers) = 5/16
seventh-grade dancers = (all dancers)×(5/16) = 80×5/16
seventh-grade dancers = 25
