Answer:
A
Step-by-step explanation:
An exponential function has the form
y = a
Use the given solutions to find a and b
Using (0, 3 ) , then
3 = a
[ = 1 ] , so
a = 3
y = 3
Using (1, 12 ) , then
12 = 3
= 3b ( divide both sides by 3 )
4 = b , then
h(x) = 3
→ A
Semicircle perimiter=1/2circumferece+diameteter
diameter=2r
c=2pir
so 1/2circumference=1/2(2pir)=pir
d/2=r
given
d=30
d/2=30/2=15=r
perimiter=pir+d
perimiter=15pi+30
aprox
perimiter=77.1239
total cost=cost per foot times feet
total cost=9.25 times 77.1239
total cost=713.396
it will cost $713.40
Answer:
25cm
Step-by-step explanation:
one the possibility 36 - 11 =25 the answer is 25
2 x² + 2 x - 4 = 0
2 x² + 4 x - 2 x - 4 = 0
2 x ( x + 2 ) - 2 ( x + 2 ) = 0
( x + 2 ) ( 2 x - 2 ) 0 0
x + 2 = 0, or : 2 x - 2 = 0
x = - 2, 2 x = 2, x = 1
The x-intercepts are: ( -2, 0 ) and ( 1, 0 ).
