Answer:
483.56 square milimeters
Step-by-step explanation:
In the above question, we obtain the following information:
Slant height = 15mm
Radius = 7mm
π = 3.14
Since we are given the slant height ,
the formula for surface area of a cone = πrl + πr²
= πr (l + r)
= 3.14 × 7(15 + 7)
= 3.14 × 7( 22)
= 21.98(22)
= 483.56 square milimeters
Answer:
Step-by-step explanation:
4/5 - 5/12
=
(4 × 12) - (5 × 5)
over
5 × 12
=
23
/60
Answer:
Step-by-step explanation:
Using the rule of exponents
× ⇔ , then
u³ × u³ = =
Answer:
7x
Step-by-step explanation:
You add the two numbers and bring over your variable.
Answer:
Step-by-step explanation:
8y + 11 = 4(y - 2)
8y + 11 = 4y -8
subtract 4y from both sides
4y + 11 = - 8
subtract 11 from both sides
4y = -11
divide by 4 on both sides
y = -2.75 or - y = 2.75
if you need a fraction it would be 2 3/4