*Hint: The formula for the lateral surface area of a right cone is LA= Πrs
All we have to do is plug in and solve.
LA= Π(3)(5)
LA = 15Π
LA = 47.1238898
The lateral surface area is around 48 inches.
This would be 5x3 :)
I did my best to keep the line dotted properly.
Sure. I'm not sure if I like the computer aided instruction.

so in the first block they want sin A and in the second block sin A cos A
Show

Proof,

Looks like the box is cos θ
Answer:
Try 20.
Step-by-step explanation:
To round 19.5 to the nearest whole number consider the tenths’ value of 19.5, which is 5 and equal or more than 5. Therefore, we have to round up: the whole number part of 19.5, 19, increases by 1 to 20, and the decimal point and all digits (.5) are removed.
19.5 rounded to the nearest whole number = 20
Answer:
y=8(x+1)²-2
Step-by-step explanation:
Completing the square is a method of factorising. x²+bx+c=0 becomes x²+bx+(
b)²-(
b)²+c=0. This then gets converted to make an equation of (x+
b)²+(-(
b)²+c)=0.
Vertex form is y=a(x-h)²+k.
8x²+16x+6=0 must first be divided by 8 to 8(x²+2x+
)=0 (as there cannot be a coefficient for x²).
This will become 8(x²+2x+
²-
²+
)=0.
From there, using the method above, we can convert it to 8[(x+1)²-1+
]=0.
Solving this gets 8[(x+1)²-
]=0.
With 8 as a, 1 as -h, and 8×-
(-2) as k, we can input this into vertex format to get the result of y=8(x+1)²-2.
**This equation involves completing the square and vertex form, which you may wish to revise. I'm always happy to help!