Answer:
56 + 53pi
Step-by-step explanation:
<u><em>Area of small circles:</em></u>
diameter of small circle: 4cm
forumla to find area of circle: A = pir^2
r is radius = half of diameter -> d/2 = 4 / 2 = 2cm
A = pi (2cm)^2
A = pi (4cm)
A = 4pi
<u><em>Area of large circle:</em></u>
diameter of small circle: 4cm
forumla to find area of circle: A = pir^2
r is radius = half of diameter -> d/2 = 14 / 2 = 7cm
A = pi (7cm)^2
A = pi (49cm)
A = 49pi
<u><em>Area of rectangle:</em></u>
Area = width x length
Area = 14cm x 4cm
Area = 56cm
<u><em>Add all three areas:</em></u>
Area of rectangle + large circle + small circle
56cm + 49pi + 4pi = 56cm + 53pi
Ella sold 24 cups of lemonade because $18.00 / $0.75 = 24 which leads to the conclusion, that she sold 24 cups of lemonade.
There would be 390,221 adults because 538,381 - 148,170 = 390,221
Y=ax²+bx+c
c is x-int =7 (0,7), so c=7
vertex=(-3,-2), another point (-6,7)
y=ax²+bx+7
-2=a(-3)²+b*(-3)+7, -2=9a-3b+7, ----> -9=9a-3b ---->-3=3a-b
7=a*(-6)²+b(-6)+7, ---> 0=36a-6b, ---> 0=6a-b
-3=3a-b
0=6a-b ----> b=6a
substitute b=6a in -3=3a-b, so
-3=3a-6a, ----> -3= -3a, a=1
substitute a=1, in b=6a, ---> b=6*1=6
y=ax²+bx+c
y=x²+6x+7
Answer:
420
Step-by-step explanation:
maybe I don't know sorry