9514 1404 393
Answer:
y = 250x +5000
Step-by-step explanation:
The "initial" enrollment is 5000, when x=0 years after 1960.
The rate of change of enrollment is ...
change of enrollment / change in time
= (15000 -5000)/(2000 -1960)
= 10000/40 = 250 . . . . students per year
Then the desired equation is ...
y = 250x + 5000
Answer:
<h2>11/26</h2>
Step-by-step explanation:
Since we have 13 heart card then
p(heart) = 13/52
Since we have 12 picture card then
p(picture) = 12/52
Since we have 3 heart and picture (at the same time) card then
p(heart∩picture) = 3/52
finally,
the possibility that you are dealt a heart or a picture card = p(heart or picture)
p(heart or picture) = 13/52 + 12/52 - 3/52 = 22/52
Answer:
x-1=9x+55
-56=8x
x=-7
y= -8
Step-by-step explanation:
Answer:
D, 30 ft
Step-by-step explanation:
Answer:
x = 7.5
Step-by-step explanation:
We first labelled the diagram we get
DC = 8
AD = 10
CE = 6
BE = x
∴ AC =AD + DC = 18
∴ BC = BE + ED = x + 6
To Find :
BE = x =?
Solution:
Let DE || AC
In Δ ABC and Δ DEC
∠A ≅ ∠D …………..{corresponding angles ∵ DE || AB }
∠B ≅ ∠E ..............{corresponding angles ∵ DE || AB }
∠C ≅ ∠C ……….....{Reflexive Property}
Δ ABC ~ Δ DEC ….{Angle-Angle-Angle Similarity test}
If two triangles are similar then their sites are in proportion.
On substituting the given values we get
∴ 
