Answer:
1/42
Step-by-step explanation:

Hope this helps!
Y = 6 x² + 12 x - 10= 6 ( x² + 2 x ) - 10 = 6 ( ( x² + 2 x + 1 ) - 1 ) - 10=
6 ( x + 1 )² - 6 - 10 = 6 ( x + 1 )² - 16 ( vertex form)
Answer:
Height = 4 cm and slant height = 5 cm
Step-by-step explanation:
Given that,
The surface area of the cone, A = 75.4 cm²
Radius, r = 3 cm
The surface area of the cone is given by the formula as follows :

Put all the values,

Also,

Hence, the height of the cone is 4 cm and the slant height is 5 cm.
X=2/3,1/2 this is the answer
Answer:
(B)Stratified
Step-by-step explanation:
Stratified sampling refers to a sampling method in which the entire population is first divided into groups/strata before a random sample is taken from each strata.
The school population in this case has been divided into these strata,
- Sophomore class
- Junior class; and
- Senior class
From these classes, a random sample of 49,39 and 48 students respectively was then taken,