Answer:
a).
b). V = 15 units
Step-by-step explanation:
Focal length F of a lens made by combining two lenses of different focal lengths U and V will be,
A). By solving the given formula,
B). If F = 6 and U = 10 then we have to find the value of V.
By substituting the given values in the formula,
V = 15 units
Therefore, focal length (V) of the lens = 15 units
B. Exactly one solution
7y +21 = 5y +8
7y +13=5y
13=-2y
-6.5=y
S = s(s +2h) = 24(24 +2*20) = 1536 . . . . square inches
Selection C is appropriate.
Y=3/2x+7 this is in slope intercept form
Divide the area of the banner by 4 and the perimeter by 4 as well P=39 A=374